Total SupplyChain Man PDF
Total SupplyChain Man PDF
Copyright © 2008, Ron Basu and J. Nevan Wright. Published by Elsevier 2008.
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ISBN: 978-0-7506-8426-2
Preface ix
Acknowledgements xi
List of Figures xiii
List of Tables xvi
Part 1 Introduction 1
1 The role of supply chain as a value driver 3
2 Why total supply chain management? 18
3 Understanding total supply chain management
and its building blocks 30
Note each chapter is designed to stand on its own. Therefore some duplication of content has
been inevitable and where applicable some cases and examples are re-visited.
viii Contents
References 374
Glossary 380
Index 387
Preface
Touring India with my son Robi in April 2006, our plan was to follow the series
of one day international cricket matches between England and India. I took this
opportunity to meet my contacts there, one of whom, Soumen Mukherjee of my
Indian publishers Elsevier, suggested that it might be an idea to have an updated
supply chain management book including an Indian version. His feedback from
academics and practitioners in India suggested that current volumes covering
this topic were primarily centred around Western (US and European) manufac-
turing businesses, as well as being mostly of a rather heavy, academic nature.
I promised him that I would think about his proposal.
After consideration, I realized that supply chain management is now both
global and dynamic as well as facing many challenges of the twenty first century.
These are: the impact of the Internet and e-businesses; globalization and out-
sourcing; environmental and green issues; challenges from emerging economies
such as India and China; challenges of the large service sectors; the pitfalls in sup-
ply chains in major projects and so on.
I prepared a draft proposal and discussed my thoughts with my ‘partner in
crime’ Nevan Wright who supported and enhanced my ideas. The outcome is
this book.
We have tried to develop this project bearing in mind the way we would have
liked a book to meet our requirements. Thus each chapter is supported by appro-
priate case examples. We have made an attempt in the final chapter to put
together most aspects of supply chain building blocks using simple case studies.
This book is aimed at abroad cross-section of readership including:
We hope that the enjoyment we have had in writing this book will be echoed in
the reader’s experience, and trust that they will find it instructive and useful.
Ron Basu
Gerrards Cross, England
May 2007
Acknowledgements
Once again I have enjoyed working with Ron. Although we split the number of
chapters fairly evenly, and edited each other’s work, for this book Ron has
been the lead author and driving force. As always I acknowledge the support of
Joy, my best friend (and wife).
Nevan Wright (Auckland, NZ)
Introduction
In this chapter, the basic concepts of supply chain management are explained.
It is shown that supply chains in some shape or form are required to deliver
products and services we, or our organization need, or think is needed.
For every business transaction there is a supplier and a customer and there
are activities, facilities and processes linking the supplier to the customer. The
management process of balancing these links to deliver best value to the cus-
tomer at minimum cost and effort for the supplier is supply chain management.
You will experience supply chains everywhere, for example in running your
home, managing a manufacturing business, in health services, hotels, banks,
government, utilities, non-profit organizations, universities, entertainment, retail
and professional services. From the cradle to the grave there will be supply
chains involved.
Supply chains vary significantly in complexity and size but the fundamental
principles apply to all operations whether they be large or small, manufactur-
ing or service, private or public sector. Supply chain management is not just for
large big name businesses such as Dell Computers, Wal-Mart and Toyota
Motors. It is for all businesses and for all operations.
When Moira and Joy (our respective wives), visit a hairdresser they are the
customer and the hairdresser is the supplier. The hairdresser will have to ensure
the availability of materials (shampoo, conditioner and colouring), facilities
and equipment (e.g. chairs, driers, etc.). The hairdresser in order to provide the
service is involved with purchasing, inventory management and facilities man-
agement. In order to minimize customer queues there is also a need for demand
forecasting, capacity management, scheduling and quality management. In this
example of a basic service operation we can identify the key components of
supply chain management.
Take another example. Consider that you are checking in at Zagreb Airport
for a return flight to London. You are unhappy to find a long queue. You have
discovered that in addition to normal procedures the central computer was
down and a screening machine was installed to X-ray all types of luggage as an
extra security precaution. In this case, the supply chain is obviously more complex
4 Total Supply Chain Management
than the hairdressing service. For you the customer the initial focal point is
the check-in clerk, but there are many supporting links leading to this service.
The airlines have to sell tickets, ensure the availability of aircraft with all the
required fittings (including in flight entertainment systems) in an accept-
able condition, provide meals and have a stock of trained aircrew available.
Before you got to Zagreb Airport our administration manager will have pur-
chased a ticket from a travel agent who in turn may have made an electronic
booking. In this example, there are suppliers and suppliers of suppliers and
there are customers and customers of customers. However, the basic functions
of forecasting, capacity management, inventory management, scheduling and
quality management are present just as they were with the hairdresser, and just
as they are for any supply chain.
The key objective of supply chain management is to provide best value to
the customer by measuring, planning and managing all the links in the chain.
When Joy or Moira receive a hair style as per her requirements (specification)
and at an affordable price in pleasant surroundings from a helpful and skilled
hairdresser she will consider that she has received good value service. With a
coiffure (French for hair cut) the perception of whether a service is good or not
can be very subjective. Joy might have said what she wanted, and the hairdresser
has faithfully carried out her instructions, but once ‘madam’ sees the end result
she could well be dissatisfied. Not all aspects and outputs of a supply chain can
be precisely measured!
They further state that ‘this definition treats the supply chain as a product cradle-
to-grave concept, including all value-added activities required to plan, source,
make and deliver products and services that meet customer needs’. To this we
add the word process. We see the supply chain not as a series of separate oper-
ations and organizations but as a complete end-to-end process.
The role of supply chain as a value driver 5
What do these definition suggest? They suggest that supply chain management
must consider every organization and facility involved in making the product
and the costs involved in doing so. This also implies that the objective is to be
cost effective across the whole supply chain, which requires a system-wide
approach to optimization.
within a supply chain were seen as separate and specialist functions such as
purchasing, planning, scheduling, manufacturing and distribution. With supply
chain management the flow of materials and flow of information across trad-
itional functional boundaries is seen as a single process. These flows are depicted
in a simplified model in Figure 1.1.
Physical flow
Supplier Customer
Master Demand
Purchasing Scheduling production management
plan
Information flow
In the past information flow was the domain of the commercial division
while the conversion process of materials flow was a manufacturing or techn-
ical division responsibility. With an integrated supply chain approach the respon-
sibility for all elements of supply is now with operations management or supply
chain management. In many businesses, the integrated approach is being
extended to include all suppliers (including ‘upstream’ first, second and third
tier suppliers) through the manufacturing process ‘downstream’ to each level
of customer (including distributors, wholesalers and retailers through to the
end user or consumer). This is known as the extended supply chain.
But how can service industries apply supply chain management? The supply
chain of a service organization contains suppliers, products or services, customers
and their demand for products and service level agreements. Service inventory
can be in the form of information databases, stocks of consumables (as with the
hairdresser), stationery items (including brochures and promotional material)
and subcontractors (including facility managers, travel agents, caterers and
advertising agencies).
Swank (2003) described a successful application of supply chain management
and lean production principles in a typical insurance service company in the
USA; Jefferson Pilot Financial (JPF). JPF believed that the processing of their
almost tangible ‘service product’ was comparable to a car assembly process.
Swank explains that ‘Like an automobile on the assembly line, an insurance policy
goes through a series of processes, from initial application to underwriting or risk
assessment to policy issuance. With each step value is added to the work in
progress – just as a car gets doors or a coat of paint’.
• Achieved savings for the NHS totalling £580 million over the 3-year
period of April 2000–2003.
• Implemented pilot supply ‘confederations’ as recommended in the
May 2002 policy document ‘Modernizing Supply in the NHS’ to
develop a middle tier between national (PASA) and local (individual
NHS trust) level purchasing.
• Produced an e-commerce strategy for the NHS through the develop-
ment of an e-procurement toolkit, which provides a framework
to help NHS trusts and confederations understand the benefits of
e-procurement and plan its implementation in a structured way.
• Developed a national set of purchasing and supply performance man-
agement measures to better assess the performance of NHS trusts
with respect to supply chain activities through benchmarking analy-
sis and strategic assessment of trust and confederation spending.
Source: National Health Service, UK (2004).
If we consider these definitions we see they are very similar to the earlier def-
initions we have provided (Melwynk and Swink, 2002; Simchi-Levi et al.,
2003), and can conclude that for our purposes, at least in a manufacturing and
supply organization, logistics and supply chain management are synonymous.
If one is inclined to separate the physical movement of logistics in a service
organization, we can see that there is but a fine border between logistics and
supply chain management in the service sector.
Taylor (1997) goes on to divide supply chain management into:
Farmers
Suppliers
Farmers
Distribution Supermarket
centre
Consumer
Foods factory
Mail order
Factory Regional
Wholesaler Retailer
warehouse depot
through various stages of processes while the information flow was the
domain of the commercial division and the conversion process of materials
flow was a manufacturing or technical division responsibility. During the
1990s, the concept of total supply chain management shifted the responsibil-
ity for all elements of supply to operations management or supply chain
management.
According to Basu (2002) the Internet-enabled integrated supply chain or
e-supply chain has extended the linear flow of the supply chain to an Ecosystem
or a supply web (see Figure 1.4). It now includes all suppliers and customers to
the end user or consumers suppliers’ customers and customers’ suppliers and
so on. The front runners of the new collaborative business model, such as Dell
and Toyota are sourcing materials and products in response to customer
demand and minimizing both inventory and dealers. The collaborative culture
has enabled these companies to become adept at managing relationships
between customers, suppliers and multidisciplinary company functions with
a sharing of transparent information and knowledge exchange.
Integration through e-business
Physical
flow
Master Demand
Purchasing Scheduling production management
plan
Information
flow
The relative importance of the key parameters for RU (i.e. machines, mater-
ials and labour) and CS (i.e. specification, cost and time) can be given a rating
of 1, 2 or 3 (3 being the most important).
When we study the apparently conflicting objectives of RU and CS, we real-
ize that they have one thing in common, that is cost and price. If we can reduce
the cost of production of goods or services down by improved resource utiliza-
tion then we are in a better position to reduce the price to the customer.
RU/CS analysis does not provide solutions to the conflicts but identifies
broad areas for attention. It is also important to note that the relative priorities
of RU and CS can vary within the same business depending on the product and
The role of supply chain as a value driver 13
Good
Issues to look at
As shown in Figure 1.6, there is a conflict between cost and materials and
further attention or a change of policy is required to resolve this conflict.
customer. To find solutions the supply chain manager will seek other tools,
techniques and processes of supply chain management which we shall explain
in later chapters. One such process is enterprise resources planning (ERP).
What is ERP?
The business objective is to convert customer demand by optimizing the
utilization of resources to deliver effective customer service applies to all
organizations regardless of whether they are in manufacturing or service sec-
tors. ERP systems provide a single up-to-date database incorporating manufac-
turing, finance and human resource applications extended to include tracking
of orders and inwards goods, work in progress and delivery of finished goods.
The system is accessible to all departments for planning and execution of
supply chain activities. Thus, ERP systems integrate (or attempt to integrate)
all data and processes of an organization into a single unified system to achieve
integration.
The term ERP originally implied systems designed to plan the utilization of
enterprise-wide resources. Although the acronym ERP originated in the manu-
facturing environment as a successor to MRPII (manufacturing resources plan-
ning) today’s use of the term ERP systems has much broader scope. ERP
systems typically attempt to cover all basic functions of an organization,
regardless of the organization’s business or charter. Businesses, not- for-profit
organizations, governments and other large entities utilize ERP systems.
Firm infrastructure
other support functions do not show up on the value stream as such but oper-
ations managers must be vitally interested and involved in these internal func-
tions of the organization.
The value stream approach in supply chain aligns well with Porter’s value
chain as shown in Figure 1.7. The idea of the value chain is based on the process
view of organizations, the idea of seeing a manufacturing (or service) organ-
ization as a system, made up of subsystems each with inputs, transformation
processes and outputs. How value chain activities are carried out determines
costs and affects profits.
Most organizations engage in hundreds, even thousands, of activities in the
process of converting inputs to outputs. These activities can be classified gen-
erally as either primary or support activities that all businesses must undertake
in some form.
According to Porter (1985), the primary activities are:
1. Inbound Logistics involve relationships with suppliers and include all the
activities required to receive, store and disseminate inputs.
2. Operations are all the activities required to transform inputs into outputs
(products and services).
3. Outbound Logistics include all the activities required to collect, store, and
distribute the output.
4. Marketing and Sales activities inform buyers about products and services,
induce buyers to purchase them and facilitate their purchase.
5. Service includes all the activities required to keep the product or service
working effectively for the buyer after it is sold and delivered.
The success of a supply chain could be synonymous to the success of the value
stream approach or the total supply chain approach underpinned by the inter-
action between three key group of players, viz. customers, external suppliers
and the departments involved with the primary and secondary activities of the
organization.
The customer is the central focus for any organization. Churchill once said
that war its too important to be left to the generals, and the same can be said of
marketing. Marketing is too important to be left to the marketing department.
Everyone in an organization should be vitally interested in marketing the
organization. Nonetheless it is the function of the marketing department to
know what the customer wants and what the competition is doing or is likely to
do. Marketing specify the product and its attributes. Attributes may range from
the essential down to the desirable and perhaps include extras that the customer
does not even want. As well as defining the product or service to be offered,
marketing has to establish the price, forecast demand, have a say in how the
product or service will be distributed or delivered, and finally marketing is
responsible for promotion with the aim of stimulating demand. Marketing also
has to sell the product/service internally within the organization to the opera-
tions and other functions of the organization. Marketing is the link with the
market and customers and operations.
In some organizations suppliers are treated with distrust, and the business
strategy adopted is to shop around and to get the best deal on each occasion. In
these types of organizations information is not shared with suppliers. When
orders are placed the supplier is not told what the purpose of the order is, and
thus are not in a position to advise, even if they were so inclined, of alternative
products or new technology. With this approach little loyalty is shown to any
supplier, and the supplier is almost treated as an adversary. The value stream
approach is to treat key suppliers of goods and services as part of the team, and
to share information and to seek advice. Key suppliers are those that are import-
ant to the smooth operation of the system. In some cases, the supplier can
become involved in the day-to-day operations of the organization and might
also be expected to advise and to assist in product development. Cost no longer
becomes the key issue. Instead of price alone, suppliers will be judged on their
loyalty and ability to deliver goods and services to the required standard and on
time. Suppliers can also become part of the information-gathering arm of the
organization; often suppliers have a different perspective as to what the com-
petition are up to (changes in buying patterns, timetables, new packaging, use
The role of supply chain as a value driver 17
of new materials and so on). Suppliers are also in a good position to offer tech-
nical advice regarding new technology and alternative materials.
Communication between departments (especially marketing, operations and
logistics) within an organization has to be two-way and has to be aimed to help
rather than as a means of apportioning blame or criticizing. With traditional
hierarchical organizations a bunker mentality can develop whereby each func-
tion is walled off from the other, and any suggestion, no matter how helpful, is
taken as a threat or a challenge. World-class organizations are noted by the
manner in which the figurative brick walls that separate functions have been
broken down, and by the teamwork that exists between all functions to achieve
the common goal. This requires that everyone in the organization knows what
the goals and objectives are and that the culture is conducive to the enthusias-
tic pursuit of the goals for the common good of the whole, rather than for the
specific interests of one department. Information is open to all and there are no
secrets.
Summary
The primary purpose of this introductory chapter was to provide an overview
of supply chain management principles and to indicate how an effective supply
chain management process adds value to all types of businesses, whether in
manufacturing or service sectors, public and not-for-profit organizations. It
also aims to initiate the understanding of some core concepts of the book
including ‘it is people, not processes or technology, that makes things happen’.
It is critical to have data sharing and interaction between all stakeholders in the
total supply chain using a value stream ‘total supply chain’ approach.
2
Why total supply chain
management?
Introduction
In the 1960s and 1970s the manufacturing and supply strategy of multinational
companies focused on vertical integration. One of the earliest, largest and most
famous examples of vertical integration was the Carnegie Steel company. In
the 1890s the company expanded to have a controlling interest beyond the mills
where the steel was manufactured to include the mines from where the iron ore
was extracted, the coal mines that supplied the coal, the barges and ships that
transported the iron ore, the railroads that transported the coal to the factory,
the coke ovens where the coal was coked, etc. One hundred years on vertical
integration was still in vogue, for example in the 1980s Unilever, originally a
soap manufacturer, had grown to own businesses and investments in forests,
timber milling and refining, paper manufacture, board and plastics manufac-
ture, chemicals, fast-moving consumer products manufacture and packaging,
marketing and advertising, computer services, distribution warehouses, ship-
ping and retail outlets. Vertical integration of a supply chain was not always
successful. The New Zealand company, Feltex in the 1980s expanded from
making carpet and furniture into owning a national retail chain. The next step
in vertical integration was to buy a timber mill and a forest. At the time the car-
pet Feltex produced was world famous and exported all round the world.
Expansion downstream in the supply chain to owning the retail stores, due to
lack of retail experience and management, did not improve profits but resulted
in a financial drain on the company. Expansion upstream to own the supply of
timber (mill and forest) for the furniture factory proved to be a disaster. The
forest was in remote rugged country and road access was poor. The cost of log-
ging and transportation to the mill proved to be prohibitive. As a result of
falling profits and share prices the company, once the largest manufacturer and
exporter of manufactured goods in New Zealand and the darling of the share
market, went through a series of ownership changes and downsizing back to
the stage where it was only manufacturing carpet. Feltex finally went into
receivership in September 2006.
Why total supply chain management? 19
And McDonald’s for over 30 years have competed, and indeed set the bench-
mark, for fast food providers all around the world.
This overseas involvement in a home market means that manufacturers (and
service providers) can no longer make products just to suit their engineering
strengths, but must now be aware of what the market wants and what global
competition is offering. In manufacturing what the competition is offering,
apart from well-engineered products, is service in the form of delivery on time,
marketing advice, training, installation, project management, or whatever else
is required to provide a total service as well as a reliable product.
Never before has the customer been better travelled, more informed and had
higher expectations. Many of these expectations began with the quality movement
of the 1980s where it was trumpeted that the customer was king, and these
expectations have been kept alive by continuously improved products and
services, global advertising and for the last decade the World Wide Web.
If they are honest with themselves most organizations realize that their products
actually differ very little from those of their competitors, and any technological
improvement is soon copied; thus the difference – the ‘competitive edge’ – comes
from service.
In the traditional process the purchase order is the key impulse for the
supplier whereas in this model the key input is the rolling forecast.
The challenges of the implementation come from forecasting capabilities,
openness and trust. The utilization of modern ICT technology also cre-
ates both challenges and advantages.
A selected starting point for this example is that the collaborative
forecasting model exists already between two parties and this model is
extended one step further. In a two-entity chain the forecast of the customer
affects the supplier. In this example, where the second tier supplier is
included the initial forecast of the brand owner affects another step
higher in the upstream. Furthermore, the planning process of the first tier
supplier, where the manufacturer’s forecast is processed into raw material
forecast to the second tier supplier, plays a key role. A general descrip-
tion of the model is shown in Figure 2.2.
Rolling forecast Rolling forecast
Second tier First tier Brand
supplier supplier owner
Goods delivery Goods delivery
Supplier partnership
Reviewing the impact of new technologies on supply chain provides an interest-
ing development of partnering with suppliers. In the past many manufacturers
Why total supply chain management? 25
Reduction
Mine Smelter
mill
Hot roller
Can
Can maker Cold roller
warehouse
Remelter
Recycle centre
Bottler Tesco
Bottler Tesco RDC Homer
warehouse store
Figure 2.3 shows a VSM of cola, from the mining of bauxite (the
source of aluminium of the cans) to the user’s home. Bauxite ore is
mined in Australia and then transferred in trucks to a nearby chemical
reduction mill to produce powdery alumina. Bulk alumina is then
shipped by boat to Norway with cheap hydroelectric power for smelting.
The molten aluminium is cast into ingots which are then shipped by
trucks, boat and trucks to Germany. The ingot is heated to 500°C and
then passed through successive rollers to reduce the thickness from 1
metre to 3 millimetres and stored as coils. The coils are then transferred
by trucks to a cold rolling mill where the aluminium sheets are reduced
from 3 millimetres to a thickness of 0.3 millimetre suitable for can mak-
ing. The thin coils are then shipped to a can maker’s warehouse in
England. Cans are manufactured and then stored. From the can maker’s
warehouse cans are then transferred to the bottler’s warehouse in pallets.
They are then de-palletized and loaded into the can filling line where
they are washed and filled with cola. At the end of the filling line cans
are then unitized in stretch wrapper and stored in the warehouse on pal-
lets. They are then transported on trucks to Tesco’s Regional
Distribution Centres around the UK and then distributed to Tesco’s
supermarkets. When cola is taken home it is typically stored again and
chilled and finally consumed. Empty cans are then recycled to reintro-
duce it into the production process at the smelting stage.
28 Total Supply Chain Management
The quantitative data related to the activities in the value stream are
summarized in Table 2.1.
It is evident from the details in Table 2.1 that value added activities
take only 3 hours compared to the total time (319 days) from the mine to
the recycling bin. This proportion is surprisingly small when one consid-
ers the alarmingly lengthy overall duration of the process.
Adapted from Womack and Jones (1998, pp. 38–43).
We believe that the above example of the value stream for a carton of cola
firmly establishes the need for a total supply chain management approach. It is
important to note that most of the 40,000 other items in a typical supermarket
would produce similar results. The impact of the value stream or total supply
chain approach in the service sector is not so dramatic as fast-moving con-
sumer goods (FMCGs), but highly significant all the same.
Summary
The key issues of supply chain as discussed in this chapter emphasizes a need
for a total supply chain management approach. With the expansion of outsourcing
and Internet driven e-supply chain, it is essential that key players and stake-
holders understand the importance of the accuracy and transparency of data for
collaborative management for mutual benefits. Improved forecast accuracy
and the real-time exchange of data not only reduces the ‘bullwhip effect’, but
also reduces processing cost, inventory level and improves customer service.
We have also discussed the trend towards the service-based economy and the
Why total supply chain management? 29
importance of total supply chain management in the service sector. The building
blocks of the supply chain underpinned by the total supply chain management
approach as explained further in this book will assist in the improved under-
standing and management of a collaborative supply chain.
3
Understanding total supply
chain management and its
building blocks
Introduction
In Chapter 2, we discussed the need for a total supply chain management
approach and introduced the concepts of building blocks. The importance of
each building block is explained in this chapter. No block stands alone, each
is a component of the whole. In combination the blocks show activities, stages
and processes of the extended supply chain. The sequence of processes creates
a flow between different stages to fulfil a customer’s need for a product or a
service. The processes of making things happen within a supply chain can be
viewed as a sequence of progressive cycles (e.g. planning cycle) or the nature
of response to a customer order (e.g. push or pull). There are debates between
supporters of make to order policy and make to forecast policy as if one policy
is better than the other regardless of customers, demand patterns, products or
organizations. Therefore, we aim to explain in this chapter:
Cycle view
The cycle view of a supply chain consists of several stages of process cycles
and form the components of MRPII (manufacturing resource planning) or ERP
(enterprise resource planning) systems and are shown in a simplified form as
three process cycles as shown in Figure 3.1 These cycles are discussed in more
detail in Part 2 (Chapters 4–9).
Planning and
Demand cycle procurement Supply cycle
cycle
The demand cycle is the cycle of time covering from when a customer buys
or orders from a retailer or wholesaler. The demand cycle can also be based on
the forecast of demand. If the retailer holds the product in stock then the
demand cycle will comprise of order request, order fulfilment and order receiv-
ing. However, if the product is not readily available then the customer order
request will form a part of demand forecast which also includes predicted
demand, market intelligence and promotion of the product.
The planning and procurement cycle covers short- and longer-term require-
ments. The demand of the product and its components (bill of materials) are
compared with the inventory and capacity and the replenishment requirements
are planned. Planners will decide what to buy and what to make. This make or
buy decision process also applies to a service organization leading to either in-
house or outsourced services.
The supply cycle typically occurs with a production schedule if the product
is to be manufactured, or a purchase schedule if the product is to be procured
from an external supplier. Once finished goods are manufactured or received
the next stage of the supply cycle is direct delivery to customers or storage in
the warehouse and subsequent distribution to customers.
Push/pull view
A push process conforms to a conventional supply chain management system
going through typical stages in sequence. As shown in Figure 3.2, orders arrive
at or after the demand cycle but always before the planning and procurement
cycle and process is activated by a forecast or demand plan. Both raw and pack-
aging materials are stored before production and products are manufactured to
stock. The order fulfilment is achieved from the inventory of finished products.
A pull process is activated in response to a confirmed order from a customer.
This includes make to order or a just-in-time (JIT) manufacturing process. As
shown in Figure 3.3, in a pull process the supplier does not stock finished prod-
ucts but holds higher quantity of semi-finished materials and often higher supply
32 Total Supply Chain Management
Customer
order arrives
Planning and
Demand cycle procurement Supply cycle
cycle
Materials Finished
stock products stock
Customer
order arrives
Planning and
Demand cycle procurement Supply cycle
cycle
Materials
stock
capacity so that order fulfilment can be achieved rapidly. The orders arrive at
or after the planning cycle as if bypassing a few steps of the traditional ERP
process.
A pull process is also associated with Kanban1 and Lean Thinking or Lean
Manufacturing which are covered in more detail in Chapter 13. In essence, lean
manufacturing requires materials to arrive into each stage of production just
1
Kanban literally means ‘card’. Originally developed by Toyota in the 1980s, a Kanban was
usually a printed card in a transparent plastic cover that contained details of specific information
such as part number and quantity. It is a means of pulling parts and products through the
manufacturing or logistics sequence as needed ‘just-in-time’. Most Kanban systems are now
computerized. Kanban is fully explained in Chapter 13.
Understanding total supply chain management and its building blocks 33
Further, in the well documented model of Dell Direct (see Basu and Wright,
2005, pp. 334–337), where the traditional retail channels are bypassed through
the manufacturer selling and delivering direct to customer, it might be con-
sidered that wholesalers, distributors and retailers are redundant. These are good
examples but are isolated approaches to suit particular circumstances and prod-
ucts. For example, some products are best processed in batches and stocked in
bulk (e.g. food processing and cool stores). In the course of this book we aim
to establish the appropriateness of each model in the context of a big picture
approach.
It is therefore important that a ‘total supply chain management approach’ is
applied and all the building blocks of the supply chain are examined. The synergy
that results from the benefits contributed by all elements as a whole far exceeds
the aggregate of benefits achieved for an individual elements. The integrated
approach is truly more than the sum of its elements. If one concentrates exclu-
sively on isolated areas, a false impression may be inevitable and inappropriate
action taken.
This maxim can be illustrated by the Indian folk tale of four blind men who
were confronted with a new phenomenon, an elephant! The first man, by
touching its ear, thought that the elephant was a fan. The second was hit by the
elephant’s tail and concluded that it was a whip. The third man bumped into
a leg and thought it was a column, while the fourth on holding the trunk decided
that it was an over-sized hose. Each man, on the evidence he had, came to a
logical conclusion, but all had made an erroneous judgement by failing to deduce
that the total object was an elephant. As with all feedback devices where a basic
message is given, inferences and decisions may be drawn from isolated data
which will be false and misleading.
A story in the business context will further underline the limitation of tackling
only a part of a total problem. The technical director of a multinational company,
having been to a conference, decided that line performance improvement must
be the best thing in manufacturing. So he organized his technical team, called in
experts from the corporate headquarters, and set up a line efficiency exercise.
The team did an excellent job on two production lines by systematically elimin-
ating all machine-related downtime problems (with the aid of video recording
analysis). As a result the production efficiency of the lines increased by 20 per
cent. However, it soon transpired that the product for one of the lines was going
to be discontinued and the other line, despite its excellent standard of reliability
and efficiency, encountered a severe long-term shortage of materials due to plan-
ning and procurement problems. Therefore, in isolation the line efficiency pro-
grammes did not improve the overall business performance.
As we mentioned in Chapter 2 our model for total supply chain management
comprises six building block configurations, viz.:
5. Operations management
6. Distribution management
Inventory management
The purpose of inventories or stocks is to buffer against the variations in demand
and supply. Inventories usually reside in three stages of a process, viz. input
stocks (e.g. raw and packaging materials), in process stocks (e.g. semi-finished
products) and output stocks (e.g. finished products). Wild (2002) introduced
the concept of consumed and non-consumed stocks. Consumed items (e.g.
materials or products) are used by the process or customers and must be
replenished in shorter cycles. Non-consumed items (e.g. capital equipment and
labour) are repeatedly used by the process needing repair and maintenance and
are replaced in longer intervals.
Inventories could be allocated either by design or can accumulate as a result
of poor planning and scheduling. Generally, inventory is viewed as a negative
impact on business incurring costs of capital (interest paid or interest fore-
gone), storage space, handling, insurance, increased risk of damage and theft,
and obsolescence. On the other hand, lack of inventory leads to lost production
in the factory and lost sales at the end of the supply chain. Holding inventory
of materials and finished products can be seen as an insurance against uncer-
tainty of supply and to overcome unforeseen variations in demand.
Inventory management is a good indicator of the effectiveness of supply
chain management. It is relatively easy to achieve higher levels of customer
service by accumulating excessive stocks. It will also obscure short-term oper-
ational problems. But this is a costly and risky option in terms of cash flow.
Obsolete inventory, be it for changes in technology, fashion or in foodstuffs past
the use by date has little salvage value. It is vital to optimize the inventory level.
In optimizing inventory levels two types of stocks are considered: cycle stock
and safety stock. Cycle stock depends on costs associated with ordering, trans-
portation, quantity discount, lead times from suppliers and customer demand.
Safety stock is the buffer against the variation of demand during the lead time and
depends on forecast accuracy, reliability of suppliers and customer service level.
In service industries operations managers might have a nonchalant attitude
towards inventories but not so the accountants. Differences between services
and physical goods are addressed both from operations and marketing. Among
the differences identified within marketing and operations literature are intan-
gibility, heterogeneity, inseparability and perishability (Grönroos, 2000). It is
perceived that services are one-off and cannot be stored. There are of course
consumed stocks (e.g. stationery) in service industries for conventional inven-
tory management. However, in the service sector more emphasis should be
focused on managing non-consumed stock (viz. database and skilled people).
This building block of inventory management is covered in more detail in
Chapter 7.
Operations management
In a supply chain operations management is the building block that makes things
happen. This is where plans are executed in factories and facilities to produce
Understanding total supply chain management and its building blocks 39
Distribution management
There is no doubt that supply chain order fulfilment is the Achilles heel of the
e-business economy. At the end of every e-commerce, on-line trading and vir-
tual supply chain there is a factory, a warehouse and a transport. Internet has
elevated the performance of information accessibility, currency transactions
and data accuracy, but the real effectiveness of supply chain from the source to
customer cannot be achieved without the physical efficiency of the supply
chain. Web-based software and e-market places are increasing the alternatives
available to e-supply chain managers in all operations including the service
industry. More opportunities may also mean more options and complexity.
Therefore, it is vital that a process is in place to ensure the performance of
e-supply chain for both virtual and physical activities.
Many organizations outsource distribution activities to third parties and do
not employ in-house expertise to manage distribution which directly affects the
customer service. If there is a failure in order fulfilment whether it is due to
quality, quantity or time or even the attitude of distributor then the organiza-
tion, not the distributor, bears the consequence. The problems or returned
goods or reverse logistics are becoming a growing concern in supply chain
management.
40 Total Supply Chain Management
1. Physical distribution
2. Strategic alliances
In the same way that ERP is concerned with information flow, suppliers and
inbound logistics, distribution management is likewise concerned with mater-
ials flow, customers and outbound logistics.
With the management of distribution, that is the physical transportation of
goods from the factory to the customer, invariably some stock is held to buffer
the variability of demand and supply lead times. The focus on outbound logistics
is to balance customer service level against cost. Cost of distribution is not just
transportation costs but also includes warehousing including special require-
ments such as refrigeration, insurance and financing of stock, and stock slippage
(deterioration, damage, pilfering and obsolescence). The more stock that is held
the greater the cost of storage and the greater the chances of losses.
The main components of distribution management are:
• Distribution strategy
• Warehouse operations
• Stock management
• Transport planning
future demand. The updated demand plan is then communicated to the manu-
facturing, engineering and finance departments, which offer to support it.
Any difficulties in supporting the sales plan are worked out … with a formal
meeting chaired by the general manager.
Performance management
Performance management acts both as a driving force of improvement and
a fact-based integrating agent to support the planning, operations and review
processes. The foundation of performance management is rooted to quality
management principles supported by key performance indicators.
There are many different definitions and dimensions of quality to be found in
books and academic literature. Basu (2004) defines quality with three dimen-
sions, such as design quality (specification), process quality (conformance) and
organization quality (sustainability). When an organization develops and defines
its quality strategy, it is important to share a common definition of quality and
each department within a company can work towards a common objective. The
product quality should contain defined attributes of both numeric specifications
and perceived dimensions. The process quality, whether it relates to manufactur-
ing or service operations, should also contain some defined criteria of acceptable
service level so that the conformity of the output can be validated against these
Performance management
Inventory
Operations management Distribution management
management
As shown in Figure 3.6, the approaches for an agile or lean supply chain are
determined by the volume and variety/variability. An agile supply chain responds
quickly to changes in demand whether caused by a low volume for high vari-
ety products or unpredictability of demand. A lean supply chain works very
efficiently when the volume is high and variability is low. The occasions for a
pure agile or a pure lean supply chain are likely to be infrequent. It is a popular
perception, though not always validated, that functional or commodity products
need a lean supply chain and innovative and new products require agile supply
chain management. As Christopher (2000) points out that there will often
be situations for a ‘hybrid strategy’ where a combination of the two may be
appropriate.
High
Agile
supply chain
Variety / Variability
Lean
supply chain
Low
Low High
Volume
Our building blocks of the total supply chain will apply to both lean or agile
supply chains but their end objectives require different ways of using the build-
ing blocks. In a lean supply chain emphasis will be on accurate demand and
capacity planning, keeping the inventory low and running the plant efficiently.
In an agile supply chain the emphasis will be on high service levels by respond-
ing rapidly to end customers. This will require flexibility in process and plant
capacity and a higher inventory, usually of semi-finished products, nearer the
demand point.
The supply chain in the service sector will also need all the building blocks
of the total supply chain although they should be used and managed differently
depending on services. For example, in an insurance service industry the
approach to inventory management would be different to that in an automobile
Understanding total supply chain management and its building blocks 45
Summary
In this chapter we have explained the characteristics and roles of supply chain
building blocks in total supply chain management. The building blocks consist of
nine components out of which six components are for supply chain configuration
(e.g. customer focus and demand management, resource and capacity manage-
ment, procurement and supplier focus, inventory management, operations man-
agement and distribution management) and three components are for supply
chain integration (e.g. systems and procedures, S&OP and performance manage-
ment). These building blocks will be applicable, to a varying degree, to all types
and strategies of supply chains whether they are primarily pull or push processes,
whether agile or lean supply chains or whether they are in manufacturing or
service sector.
Part 1: Introduction
Questions
1. How would you define supply chain management in a business environment?
Describe in brief the major impacts of supply chain management in both
manufacturing and service industries.
2. What are inbound and outbound logistics? Are there any differences
between logistics and supply chain management? Discuss.
3. What is the primary goal of supply chain management? Explain the role of
resource utilization/customer service (RU/CS) analysis as a first step in
achieving this goal.
4. Consider the over the counter service of a fast food restaurant like
McDonald’s:
(a) What are the present objectives (RU/CS) for the operation? Highlight
the relative importance in a scale 1–3 (3 being most important and 1
being least important).
(b) Identify conflicts between parameters, if any, in a combined RU/CS
matrix.
5. Explain the concept of delivering value by supply chain management.
Comment on the link between supply chain management and Porter’s
value chain.
6. Explain what you understand by ‘total supply chain’. What are the compon-
ents or building blocks of supply chain management?
7. What are new challenges and opportunities in supply chain management?
Explain why it is necessary to consider the management of the total supply
chain.
8. Describe with appropriate examples the cycle and push/pull views of
a supply chain.
9. Describe the appropriate applications of supply chain strategies and
processes to achieve competitive advantage:
– The use of inventory to improve customer service.
– How transportation can be used to increase the efficiency of product
supply?
– The increase of capacity to meet customer demand.
– The use of information and planning to increase the responsiveness of
the supply chain.
Part 2
Building Blocks of
Supply Chain
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4
Customer focus and
demand
Introduction
Customer focus and demand is the first of our six building blocks for supply
chain management. In Chapter 3, we say customers create demand. Marketing
and sales personnel and advertising agents might argue that through advertising
and promotion they create demand. It is true that marketing will create interest and
might initially generate some sales. But no matter how clever or entertaining
advertising and other forms of promotion might be, unless the product is wanted
or needed by the customer, demand will soon evaporate. A customer could
be a consumer (end user), retailer, wholesaler or distributor, but ultimately
the demand for a product or service is determined by the end user. An example
of promotion creating interest can be seen in two West End shows opening on
the same night in London. Although both might have similar sized casts and has
well-known ‘stars’ and have the same type of promotion, one will run for several
months and one will close after a few weeks. Whether a show is successful or
not will be determined by the number of people who buy tickets for the show, in
other words customer demand. The difference will be due to customer percep-
tion of the show not on the quality or amount of promotion. Indeed a flagging
show is likely to have more spent on advertising than a successful show. Thus,
although advertising and other forms of promotion can arouse initial interest if
the product does not closely meet customer expectation, marketing alone can-
not maintain demand. Our rule of thumb is that unless a product or service
meets 80 per cent of customer needs, the customer will be lost. Why only 80 per
cent? Should we not be aiming for 100 per cent and the answer is yes, but it
might not be economically feasible for us to exactly meet every customer’s
needs or expectations, even if we knew exactly what they wanted. As a cus-
tomer if we were continuously to receive service and product at 80 per cent of
what we want, taking into account what we are prepared to pay, most of us
would be reasonably satisfied. Organizations know this, and instinctively strive
to give important customers service at a greater level than they do to less impor-
tant customers, and the less important customers either through necessity or
lethargy accept the rules of the game, providing the service or attributes of the
product do not fall too far below what they want. Airlines do not hide the fact
that first class and business class passengers get priority at check in, better serv-
ice and food in flight and even better choice of movies than do economy class
50 Total Supply Chain Management
passengers. In reality, the reason people travel business class is for more leg
room and to be able to sleep on long haul flights, rather than for the quality of
the food or for the choice of wine. When was the last time that you checked the
menu before buying an airline ticket? Economy class passengers all of whom
would prefer to travel business class tradeoff service to reduce their cost and
although the economy class passenger will have but limited expectations if their
perception is that the service is poor they will, often without complaining, sim-
ply go to another airline for their next journey even if it means paying more. The
lesson here is that customers do not always bother to complain or give you a rea-
son, they just fade away.
This chapter considers how to get closer to the customer to determine what
they really want and how to keep customers. In particular, the concept of cus-
tomer relationship management (CRM) is explained. We begin with short sec-
tion on the need to estimate demand and conclude with a short introduction to
techniques for forecasting. As explained in Chapter 3 without some form of
forecast of demand, management will have difficulty in establishing what the
capacity of the operation is and what it should be.
What can be provided is limited by our capacity. Capacity is measured in
terms of outputs, and capacity is limited by availability of resource, be it mater-
ials, people, equipment, storage space and transportation. In retail outputs will
be measured by the number of items sold but sales volume might be limited by
how many customers can be served in a given period. This might depend on the
number of staff, the number of cashier points and the availability of stock on
hand. For the West End show or for an airline the capacity will be limited by
how many seats in the theatre or in the aircraft and for a hospital the limitation
might be the number of hospital beds. On the other hand, for the hospital it
could be that there are empty beds but the limitation might be the availability
of surgeons and nursing staff, for the airline the limitation might not be the
number of aircraft but the availability of aircrew. In supply chain management
outputs are important and, as the words supply chain imply, the concern is with
the movement of material from one component of the chain to another and
finally out to the end user. The amount of material that can be held at each level
will depend on physical limitations such as storage space, handling equipment,
people for handling and processing, and the efficiency of the processing, infor-
mation and recording systems. Likewise, how much can be handled and when
it will be delivered is dependent on all of the above (stock on hand, ability to
handle and process, and transport capacity and availability).
Accountants and management become agitated when they detect slow stock
turns and excess capacity in the form of idle resource of space, handling equip-
ment and people. On the other hand, not being able to meet demand and losing
sales is also frowned upon! Efficient use of resource is the hallmark of a just-
in-time or lean systems. The danger is when just-in-time becomes just too late.
Just too late results in lost sales and lost opportunities. Successful supply chain
management equates to efficient use of resource and satisfied customers.
Needless to say the achievement of a balance between customer service and
resource utilization is not easy. Resource and capacity planning is covered in
Customer focus and demand 51
Customer focus
Our first rule is that a world class organization aims not to just make sales but
to build relationships. Customers are at each stage of the supply chain and each
want to receive materials that meet their needs in terms of specification, on
time and at a reasonable cost … , that is right thing, right time and right price.
Assuming goods delivered meet specification of each component of the supply
chain, from manufacturer or processor, to distributor through wholesalers to
retailers and ultimately to the end user, aims to minimize their cost of stock-
holding. The ideal for each component is to hold no stock and to receive goods
on demand. For each downstream customer to receive such a service each
upstream component, unless they in turn are getting dramatically perfect ser-
vice from their upstream supplier, must hold stocks of all the stock keeping
units. If a stock of every stock keeping unit is held the cost in storage, handling
and funding (interest on capital invested) will be high. (In the USA, the num-
ber of goods available in supermarkets is 300,000, imagine the cost for any
wholesaler who aimed never to have a stock out.) The cost of stock holding as
detailed in Chapter 7 includes interest, insurance, storage space, materials hand-
ling, damage, theft, obsolescence, past used by date, fashion changes and of
course the wages of staff involved in handling, counting, checking and raising
orders. Thus, what the customer would like and what an organization can eco-
nomically provide has to be a tradeoff between great service with high stock
holding, small deliveries and high transportation costs, or lower stockholding
and transportation cost with diminished customer service, longer lead times
and inflexibility.
It should also be noted that at each level of the supply chain there will be
additional and different needs. Downstream from the retailer, the end user will
not only expect the basics (goods meet specification, available when required),
but they will also appreciate after sales service and the opportunity to return
goods. At the retail level of the supply chain, retailers will expect the basics
52 Total Supply Chain Management
(goods meet specification, available when required) plus will appreciate shar-
ing the risk of stock holding such as provided by a vendor managed inventory
system. Sharing of risk, such as using a vendor managed inventory system is
explained in more detail in Chapter 14.
Determining what the customer wants means more than asking them to fill
out satisfaction questionnaires, or taking them out for a cup of coffee.
the customer’s awareness that a database is being built, from customer annual
reports, media statements, and comments by analysts in the business pages of
newspapers and journals. For large (important) customers this would include
tracking the share price.
The CRM database system allows information to be retrieved quickly and is
invaluable in forecasting demand and seasonality of demand. It also helps if the
customer can be enlisted in providing early advice as to what their own budgets
and forecast of demand are likely to be. If a supplier can get close to a customer,
and if there is mutual trust, the customer and supplier can jointly plan for fore-
casted demand. A component half-way up the supply chain, such as a distribu-
tor should be working closely in the guise of being a customer with their major
suppliers in much the same manner as they are working with their major cus-
tomers. It is not enough to know the strengths and weaknesses of your direct
customers, but a supplier should have market intelligence right out to the end
user, and in the CRM file for each customer, information regarding their cus-
tomers should also be gathered. A macro and micro approach is needed.
Pestle
In forecasting knowing your direct customer and your direct supplier is a start,
knowing their suppliers and customers is also important, but understanding exter-
nal factors as normally covered in the strategic managers PESTLE analysis is
also important. PESTLE stands for Political, Economic, Societal, Technological,
Legal and Environmental aspects which could impact on the organization, and
each is examined as a threat and as an opportunity:
• Political, legal and societal factors: Laws and regulations might seem to be
tiresome limitations, but they do provide protection and a measure of stabil-
ity. For our home market we will know what is legally acceptable, hours and
conditions of employment, health and safety issues, taxation and regulatory
requirements. When operating overseas, it is wise to understand that what is
54 Total Supply Chain Management
1. How well do you know the true market size and share for your product/
service?
2. Who are your three main competitors?
3. How good is your knowledge of the strengths and weaknesses of your top
three competitors?
4. How well do you know and compare the service level your competition
provides?
5. Do you actively monitor your competitor’s acquisitions, expansion and
divestments?
6. Do you know the capacity of your competitors manufacturing and distribu-
tion centres?
Customer focus and demand 55
1. Qualitative
2. Quantitative (mathematical or time series approach)
3. Causal
In reality, all three approaches are interlinked and should be taken into account
when determining a forecasted demand figure. Invariably, all forecasts will
also have an element of subjectivity associated with them.
Qualitative forecasting
Qualitative forecasting uses judgement, past experience, and existing past and
present data. However, if forecasting on past results and based on current con-
ditions was easy, the bookmakers would soon be out of business and the
weather forecast would always be right! Relying on past information alone to
forecast the future is like driving a car forward by looking back through the
rear view mirror.
The best-known methods of qualitative forecasting are:
Expert opinion
Individuals or groups can undertake this method. If we think about it, man-
agers use expert opinion all the time as they plan and make decisions every day.
Scenario planning consists of creating hypothetical circumstances that may
happen in the future, and then formulating solutions to each scenario. Trend
analysis and understanding causal factors is essential to good scenario plan-
ning (Getz, 1997).
Imagination is required, as the event manager should then determine the
impacts on forecasts using these different scenarios.
56 Total Supply Chain Management
Market surveys
Market surveys are generally not used to forecast demand for capacity manage-
ment. They are best used to determine why a product or service is not perform-
ing as well as expected. Market surveys collect data from a sample of customers
and potential customers, analyse their views and make inferences about the
market at large. Wright and Race (2004) advise that surveys can be carried out
by telephone, personal interview, surface mail or e-mail. Market surveys use two
approaches: structured and unstructured. With the structured approach the sur-
vey uses a formal list of questions. The unstructured approach enables the inter-
viewer to probe and perhaps guide the respondent. The survey enables the
manager to learn why people did not buy, and gives the potential for attracting
new segments in the future. Framing of questions is an art, and when the ques-
tions are completed they should be tested to check ambiguity and relevance.
The key is to establish from the outset exactly what information is wanted, and
then to design questions that will give the required information. Questions that
are not relevant to the issue are a waste of time and money. A weaker form of
market survey includes group interviewing or focus groups. With the focus
group approach, six to ten people are invited from a market target group to a
meeting. The conditions are relaxed with refreshments and so on, and after the
interviewer has set the scene it is hoped that group dynamics will bring out
actual feelings and thoughts. At the same time the interviewer attempts to keep
the discussion focused on the subject of the research. The concern with this
Customer focus and demand 57
approach is that too much can be read into the opinions of a small and possibly
non-random sample. Holding several focus group meetings on the same subject
and then pooling the results can to some extent overcome this problem.
Quantitative
1 No prior data 20
2 20 22 2
3 22 23 1
4 (winter) 23 18 5
5 (spring) 18 24 6
1 – 20 –
2 20 22 2
3 21 24 3
4 22 23 1
5 22 13 9
6 20 9 11
7 18 8 10
8 17 6 11
A refinement is to take a moving average. In Table 4.3, the last three periods
are averaged. This method provides a response to trends, and also dampens fluc-
tuations. Although there are still significant variations shown in Table 4.3, the
forecasts for periods 7 and 8 are more accurate than those shown in Table 4.2.
Total absolute deviation (TAD) is the sum of all the deviations ignoring plus
or minus signs. Mean absolute deviation is the average of the deviations. In this
example, although there are five forecasts and five deviations (actual to forecast),
the sum of all the deviations ignoring plus or minus is 35. Plus or minus is
ignored as it is just as serious to over forecast as it is to under forecast demand.
In this example after the first forecast which was reasonably accurate the vari-
ations are significant. For example, for period 6 the forecast is 222 per cent
of actual demand. Although using averages of past actuals ‘dampens’ rapid
responses when there are fluctuations, the method is slow to respond when there
is a definite trend, either up or down.
The number of periods used for averaging is a matter of judgement. If there
are definite cycles the number of periods in the cycle can be used to determine
the number of periods used for averaging.
Seasonal adjustments
Where there are distinct seasonal trends then the forecast can be further refined
by adjusting for seasonality.
Customer focus and demand 59
1 – 20 –
2 – 22 –
3 – 24 (66/3 22) –
4 22 23 (69/3 23) 1
5 23 13 (60/3 20) 10
6 20 9 (45/3 15) 11
7 15 8 (30/3 10) 7
8 10 16 (33/3 11) 6
Total absolute deviation 35
Mean absolute deviation 35/5 7
Deviation spread 11 to 6 17
In Table 4.4, we can see that on average the first three quarters each year
have accounted for 82 per cent of the total demand for the year. Therefore
based on the previous years history the actual demand of 30 55 60 which
totals 145 will likely be 82 per cent of the full year. Thus the full year will be
176.8 and quarter four will be 31.8. This can be checked for trend. Each year
the total demand has increased; from 2004 to 2005 by 17 per cent, 2005 to
2006 by 16 per cent, 2006 to 2007 by 9 percent and if our forecast for 2008 is
correct the increase will be 8 per cent.
However is the forecast of 176.8 sensible? 176.8 is a very exact figure and
we must remember that a forecast is seldom exactly correct. We should there-
fore forecast 175 or if the omens are goof 180. We would need to take into
account market and economic trends and indicators such as unemployment
rates, interest rates, currency exchange fluctuations, the political situation and
of course what the competition is doing or threatening to do.
We now have a forecast for the next 12 months (four quarters) which is
seasonally adjusted and which has allowed for growth based on the past trend.
Naturally as each new ‘actual’ comes to hand we recalculate our moving forecast.
60 Total Supply Chain Management
The main weakness of using past averages is that equal weight is given to each
of the historical figures used, and it is also necessary to have, or to build up, a
history of information to test against and to forecast from.
In general there are two frequently used models for time series forecasting:
1. Moving averages
2. Exponential smoothing
The moving averaging model, as shown in the example in Table 4.3, uses the
average of the past period data in a time series to forecast future activities. In
another simple example, assume the sales of the last 4 months of a mobile
handset is 10,000, 12,000, 11,500 and 13,000. Then using a 4-month moving
average, the forecast for the fifth month would be the average of the past 4
months, that is (10,000 12,000 11,500 13,000)/4 or 11,625.
Exponential smoothing is similar to the moving average methods but it elim-
inates some of the calculations. The model uses a smoothing factor (less than 1)
for forecasting the next period activity. The mathematical formula is
Fn1 aAn (1 a)Fn
where Fn1 is the forecast for next period,
Fn is the forecast for the current period, a is the smoothing factor and
An is the actual data for the current period.
Causal
Causal forecasting is when an event (such as sales) is caused by some other event.
For example, the demand of small cars increases with the increase of the petrol
price. In forecasting, it is easy to get caught up with the method of calculating and
to overlook the purpose. The purpose is to get the best possible forecast of what
might happen in the future. Past results must be examined to understand why fluc-
tuations in past demand occurred. For example, what was the state of the econ-
omy, noting key indicators such as interest rates, inflation rates, currency
exchange rates, employment rates and factors such as the entrance of new com-
petitors, new technology and materials, fashion trends, and marketing drives.
Knowing the past causes for changes in demand is important when making fore-
cast for the future. Although the information used has a quantitative source, the
application and usage of the data relies on a qualitative interpretation.
Common sense
Finally, the commonsense approach with forecasted figures is to test by asking,
are these figures sensible, what happened before and what is likely to happen
in the future? This approach shows the link between the use of quantitative
data and a qualitative approach, and uses the experience, knowledge and
expertise of the management team. As Wright and Race (2004, p. 161) say
‘the commonsense approach with forecasted figures is to test them by asking
Customer focus and demand 61
“Are these figures sensible, what happened before and what is likely to happen
in the future?” Once the future demand forecast has been agreed then we must
determine the future capacity of the organization, and anticipate what changes
might be needed to meet the level of forecasted demand’.
Summary
In summary, we conclude this chapter with questions derived from Basu and
Wright (2005) designed to enable an organization to understand their customers
and their customers needs:
1. How well do you know the relative importance of your main customers?
2. Is your CRM database up to date and is it readily accessible to all key
members of your organization?
62 Total Supply Chain Management
3. How often do you conduct market research of trade and customer needs
out to the end user?
4. How well are customer complaints handled and recorded?
5. How is customer satisfaction measured (on time delivery, accuracy of
delivery, lead time, order fill, after sales service)?
6. How close is your link with internal functions of marketing, planning and
operations?
7. How close are your links and sharing of information with other components,
upstream and downstream in the supply chain?
8. Are staff other than sales and marketing encouraged to meet with customers?
9. How well are you aware of opportunities and constraints of the emerging
markets such as India and China?
10. How closely is your operations manager involved with customers to achieve
a good understanding of customers needs?
11. Do you have a serious partnership with customers to help them gain a
competitive edge?
12. How frequently do you analyse channels of distribution up- and downstream
in the supply chain?
To be world class we have to know our customers and know what they want,
remember we are building relationships not selling commodities. Without cus-
tomers any organization, profit or non-profit will not survive. We also have to
understand that for any commercial organization profit is necessary for survival.
The level of customer service provided must be affordable and sustainable. Our
final comment, the objective should be to build long-term relationships, not to be
just making sales and short-term gains.
5
Resource and capacity
management
Introduction
This chapter shows why resource and capacity management is an important build-
ing block in supply chain planning and management. We begin by explaining
what effective capacity is as opposed to theoretical capacity. The objective for
capacity management is to meet demand, and thus we show that the effective
capacity for a complete supply chain is how many units could be supplied in a
specific time period such as a daily basis to end users if required. The supply
chain consists of many stages from preparing the ground and sowing the seed
out to the final consumer, and from seed to mouth might take 12 months or
longer. Unless you are a supermarket group such as Tesco’s or Sainsbury’s it
would be rare for any one player to be able to control the complete supply chain;
therefore, it is more practical to consider how each component can manage
their part of the supply chain while working closely with immediate supply and
customer partners. In this chapter we consider how any one component of the
supply chain can efficiently manage their level of the supply chain.
Theoretical capacity
In supply chain management capacity refers to the amount of inventory that can
be held in the supply chain. The aggregate capacity is the sum of the total inven-
tory that could be held simultaneously at each stage. In theory this total is the
capacity of the entire chain. However, a supply chain does not stand still, material
is constantly moving into the factories and food processing plants, is being trans-
ported by road, rail, sea and air, sometimes in large amounts (e.g. a 100,000-tonne
oil tanker or other bulk carrier) and through successive stages out to the end user.
64 Total Supply Chain Management
Effective capacity
The effective capacity can be defined as the amount of material or product
available at each upstream stage of the supply chain. Beginning with the end
user, how much could the upstream supplier provide at any given time to cus-
tomers and so on up through the various tiers of the chain? Some texts measure
capacity in the supply chain based on the capacity of warehouses, in the sense of
how much can physically be stored. While storage space might be a concern if
you are the manager or owner of a warehouse the effective capacity is how
much can pass through your warehouse in a given period, rather than how much
you can physically store. Movement through the warehouse will be limited by
the speed and reliability of inward supply and by the availability of outward
transport. The objective of good warehouse management is not to have huge
amounts of material, but to have a high rate of throughput. Dangers and costs of
large stocks of slow-moving stock at any stage of the supply chain are:
• Cost of premises
• Cost of capital (interest on cash tied up in stock holding)
• Handling costs
• Insurance
• Damage and deterioration of materials
• Stock shrinkage due to miscoding and theft
• Loss due to obsolescence, fashion changes and passed used by dates
Thus, the effective capacity is measured in terms of throughput for each stage
of the supply chain. At the end of the supply chain effective capacity is the amount
of finished product that can be supplied to end users on a daily basis. For
example, in the military capacity could be measured by the number of rounds
of ammunition, or the number of ration packs that could be supplied daily to
the front line. Capacity is not the number that is supplied, but the number that
could be supplied if required.
Types of forecasts
As discussed in Chapter 4, there are three ways of looking at forecasts: the
qualitative approach, the mathematical or time series approach, and the causal
approach. In reality, all three are interlinked and should be taken into account
when determining a forecasted demand figure.
Time
period demand was 50,000 the forecast for the next period would be
50,000. If for each period the trend is upwards then the forecast will fol-
low the trend but always lag behind (see Table 5.1).
Table 5.1 Short-term forecasts
In Table 5.2, it can be seen that apart from 2006 there is a very obvious
seasonal trend. Quarter One is 11 per cent of the total demand for a year,
Quarter Two 22 per cent, Quarter Three 22 per cent and the fourth
Quarter is on average 45 per cent. Obviously, something went terribly
wrong in 2006. As we are now only in the first half of 2008 it should be
easy to find the reason for the 2006 aberration. It could simply be due to
the product life cycle and that the competition was able to steal a march
on us with an updated product, and it was not until the end of the year
that our new product came on line. Or if we were in an overseas market
there might have been a natural disaster such as a tsunami or earthquake
in 2006 which disrupted our supply lines. Once we understand what went
wrong in 2006 we can with some confidence predict that the first two
quarters of sales will be 33 per cent of the full year and thus the full year
forecast will be 281.8. We would never forecast 281.8, as this suggests an
exactitude that could not happen. Thus we would either say 280, or if the
economy was buoyant we would say 285, but never 281.8!
Innovation
Business planning
Strategy
Top management
planning
Sales and
Forecasting
operations planning
Rough-cut
Bill of resources
capacity planning
Resources OK?
Operations
management
Bill of materials planning
MRP II
RM/PM inventory
Detailed capacity
Available capacity
requirement planning
Planning OK?
Purchasing
(supply planning)
Execution
planning
Production
Available resources
scheduling
wasting time. The key managers at these meetings will be from sales, operations
and planning. The issues that will be agreed will include time and availability of
resources, and conflicting requirements and priorities will be resolved. Above all
demand is the crucial issue, and as future demand can never be certain there
should be a formal mechanism of forecasting using the best combination of his-
torical models, past results from promotions, data from customers and market
intelligence. Likewise, the inventory data system has to be up to date and accu-
rate with details of raw materials (RM) on hand, goods on order, lead times and
finished goods on hand.
Only with up-to-date information, and with the continuous review and manage-
ment of information, can an organization hope to achieve a balance of resources
and stocks of inventory to meet planned service levels. The master planning and
production scheduling process therefore has to be continuously monitored and
updated to ensure that this occurs.
Production scheduling
The master production plan or master schedule is at the heart of MRP where both
the timing and quantity of orders are determined from offsetting from the current
stock the demand during the lead time to meet the master production plan.
As shown in Figure 5.3, the concepts of MRP underpinned by the master
plan can be extended also to the distribution channel to allow integrated sched-
uling throughout the supply chain. The approach of distribution requirements
planning (DRP) is compatible with MRP as used in the factory.
Customer Warehouse
Customer Ware-
order order Factory
house
stock stock
Master
production
schedule
Purchase Production
Supplier order order
Materials Work in
stock process
Resources No
OK?
Yes
FEEDBACK
management Inventory status Materials planning
planning
Routings Capacity planning
Planning No
OK?
Yes
Purchasing
Operations
management Shop floor control
execution
Performance measures
all. A partnership with suppliers and a partnership with customers are the
beginnings of a radical change in supply chain management. As a result, the
service provider, the supplier and the customer achieve benefits in:
The boundaries between companies will blur as they view themselves as part
of an ecosystem, supply chain, or value chain.
Hasso Platner, Co-founder and Vice Chairman, SAP
Managing capacity
There are two approaches to managing capacity: one is to adjust capacity and
the other is to manipulate demand. Generally, organizations will seek to match
capacity and demand using both approaches.
74 Total Supply Chain Management
Adjusting capacity
The first step is to know what your effective capacity is and what is the constraint
that limits the throughput for your operation. The constraint could seemingly
be lack of space, lack of handling equipment, lack of people and lack of reli-
able supply. Once the constraint that limits your capacity to serve your customers
is identified then corrective action can be taken. However, what at first might be
seen as a constraint might in fact be disguising a lack of planning and vision. For
example, lack of space might not be the basic issue. If a warehouse is running out
Sadly reducing the number of people is the quickest way of reducing unwanted
capacity. Again before new people are added, it is important to be sure that the
demand will continue at the current or expected level. Adding new people
takes time to recruit and to train, intellectual capital once lost is hard to recover.
Manipulation of demand
With this approach demand is manipulated to match the available capacity.
Recognized ways of demand manipulation are advertising campaigns, special
promotions, discounts, two for one deals and so on. The travel industry is adept
at demand manipulation with high, shoulder and low season fares and tariffs.
Where demand exceeds capacity prices are raised, or customers might be
allowed or even encouraged to go elsewhere.
If demand is known in advance and is stable, the operations manager’s job is
to plan and make the best use of resources to meet the demand. In Chapter 2
the bullwhip effect was introduced, Chapter 14 shows how early sharing of
information can reduce major and misleading demand fluctuations. Minor
fluctuations cause only minor problems. Where demand cannot be accurately
Resource and capacity management 77
predicted then, although the aim has not changed, operations management
problems can become extremely complex.
Summary
Resource and capacity management is all about planning. Planning is not possible
without information. Resource and capacity planning begins with knowing what
our effective capacity is. Effective capacity is the amount of material or product
that can be delivered in a given period of time to customers. Having the capacity
to meet customer demand requires advanced knowledge of what the demand will
be. The chapter began with the need to forecast demand and moved onto planning
of resources to meet demand. The chapter concluded with strategies for capacity
management and also considered how demand might be manipulated. Chapter 14
deals with sharing of information flowing up through the supply chain beginning
at point of sale. Early supply of information allows quicker response to demand
fluctuations and reduces the bullwhip effect introduced in Chapter 2.
6
Procurement and supplier
focus
Introduction
Procurement and supplier focus is the third building block of supply chain
management. Procurement includes:
The Industrial Marketing and Purchasing Group (IMP) in the 1970s developed a
dynamic model of buyer–supplier relationships in industrial markets (the inter-
action model) and illustrated its applicability through comparative studies of
buyer–supplier relationships within and across a number of European countries
(France, Germany, Italy, Sweden, UK). The main conclusion of these pan-
European studies was that buying and selling in industrial markets could not be
understood as a series of discrete and serially independent transactions. Instead,
transactions could only be examined as episodes in often long-standing and com-
plex relationships between the buying and selling organization (IMP, 2007).
Procurement or buying is the act of purchasing. Within an organization the
purchasing or procurement department is often seen as a less than glamorous
department that buys things as cheaply as possible to meet specifications set by
more glamorous and important departments such as Marketing and Operations.
However, as Porter found purchasing is a key activity in determining the com-
petitive advantage of an organization (Porter, 1985). Lysons and Farrington
(2006) rather simplistically say the purchasing process consists of a chain of
processes. The chain consists of:
• Receive requisition
• Solicit quotations
Procurement and supplier focus 79
• Vendor selection
• Negotiate with suppliers
• Place order
• Receive supplies
• Make payment
Setting specifications, inspection and quality assurance are all included in the
overall process.
We contend, as does the IMP Group, that purchasing is more than looking
for the right product at the right price and at the right time. We say that a world
class company will be aiming to build alliances and long-term relationships
with key suppliers. Ideally key suppliers to an organization will be involved in
design and development of new product and services. They will be able to pro-
vide advice on new technology and methods, they can suggest alternative
materials, they will observe and report market trends, and in short they will
become an additional source of market intelligence. Gone are the days when
we simply placed an order on a supplier and the supplier was not told what or
how the product was going to be used. The point being if the supplier knew to
what purpose the materials ordered were going to be used that they could well
provide suggestions of alternative products and technical advice on how to use,
etc. It could be argued that organizations are not purchasing materials but look-
ing for solutions. Lou Gerstner recognized this when he became CEO of IBM
in 1993. Up until then IBM developed and built computers. Gerstner came out
with a new mission statement that said in effect that IBM would lead the world
in the development of information technology (IT) and would provide solu-
tions for their customers. Fifteen years on the Mission statement is largely
unchanged and reads:
The big change in 1993 being that IBM moved from selling technology to get-
ting alongside customers, understanding their needs and developing a solution
customized to the customers’ needs. For sales staff of IBM this required a
major change in thinking, from selling a box not fully knowing what the cus-
tomer was going to use it for, to understanding the customers business and to
finding a solution to the customers needs. As Gerstner (2002) said this required
a major change in culture.
An example of how IBM works to find solutions for customers is given in
the following mini case reported by IBM global services (April 2004).
80 Total Supply Chain Management
Business need
A process focused organization, Toyota continually seeks to implement
key business practices that will help the company enhance performance
and customer service at the lowest cost.
Key challenges
Toyota was experiencing significant growth both in product volume and
in the variety of products required to meet customers’ needs. Company
IT staff faced challenges in integrating new components with the inter-
connected legacy systems to make system improvements. Old code had
been edited frequently over the years and was inconsistently docu-
mented, and as a result could be deciphered only by selected IT team
members. To respond to dealer needs, Toyota required a resilient supply
chain management solution to help ensure delivery of the right part to
the right dealer at the right time. The solution had to enable Toyota to
perform the correct calculations to accurately predict inventory levels
for more than 100,000 service parts and more than 1 million part/location
combinations.
Solution
IBM Business Consulting Services
Believing that custom development to improve legacy system perform-
ance was too expensive and time consuming, Toyota selected software
from i2 Technologies. IBM Business Consulting Services provided exten-
sive i2 Technologies implementation experience and skills to develop
a state-of-the-art enterprise architecture and infrastructure strategy that
included capabilities for performance measurement, data warehousing,
demand forecasting, service parts planning and business process and
organizational design change.
IBM worked with Toyota associates and i2 to develop an integrated
solution that connects Toyota’s legacy systems to i2 software to facilitate
service parts planning across the Toyota service parts supply chain.
Toyota is using i2 Demand Planner for core business forecasting and i2
Service Parts Planner for slow moving spare parts forecasting, inventory
optimization and replenishment planning. A data warehouse enables
users to access both i2 and legacy system information via drill-down,
self-directed activities or a series of reports.
Procurement and supplier focus 81
Results
Through improved demand and order forecasting, and better calculation
of safety stock requirements, Toyota has reduced over US $46 million in
inventory as a result of the implementation. The IBM and i2 solution has
enabled the division to eliminate less-critical work, thereby improving
efficiency. Better inventory planning also has helped Toyota boost its
customer fill rate, limiting rush orders and reducing airfreight expenses.
Thus purchasing is more than simply buying a product. Nonetheless the basic
objective of purchasing is to have available the correct materials in manufac-
ture or processing or product in warehousing and retailing when required and
to ensure continuity of supply. Thus in true operations management parlance
the basic objectives are right thing (meeting specification) at the right time and
at the right price.
For key products these objectives can best be met by developing partnerships
with suppliers, and for suppliers as shown in the IBM case study to be pro-
active in forming relationships with customers.
Quality assurance
Quality assurance includes the setting of standards with documentation and
also includes the documentation of the method of checking against the speci-
fied standards. Quality assurance can also include a third-party approval from
a recognized authority, such as ISO. With quality assurance, inspection and
control are still the basic approach, but in addition one would also expect a
comprehensive quality manual jointly agreed by the supplier and the purchaser,
Procurement and supplier focus 83
perhaps including use of statistical process control and the use of sampling
techniques for random checking and the overall auditing of quality systems.
Quality inspection, control and assurance are aimed at achieving an agreed
consistent level of quality, first by testing and inspection, then by rigid conform-
ance to standards and procedures, and finally by efforts to eliminate causes of
errors so that the defined accepted level will be achieved. As Wright (1999) says
‘this is a cold and often sterile approach to quality. It implies that once a suffi-
cient level of quality has been achieved, then, apart from maintaining that level
which in itself might be hard work, little more need be done’. Where a genuine
alliance/partnership has been forged between the buyer and supplier both will
continuously be working together to improve the product and the service.
A. Values
Members will operate and conduct their decisions and actions based on the
following values:
1. Honesty/Integrity
Maintaining an unimpeachable standard of integrity in all their busi-
ness relationships both inside and outside the organizations in which
they are employed.
2. Professionalism
Fostering the highest standards of professional competence amongst
those for whom they are responsible.
3. Responsible Management
Optimizing the use of resources for which they are responsible so as to
provide the maximum benefit to their employers.
4. Serving the Public Interest
Not using their authority of office for personal benefit, rejecting and
denouncing any business practice that is improper.
5. Conformity to the Laws
84 Total Supply Chain Management
In terms of:
(a) The laws of the country in which they practice.
(b) The Institute’s or Corporation’s Rules and Regulations.
(c) Contractual obligations.
Rules of Conduct
In applying these rules of conduct, members should follow guidance set out
below:
A. Declaration of Interest
Any personal interest which may impinge or might reasonably be deemed
by others to impinge on a member’s impartiality in any matter relevant
to his or her duties should be immediately declared to his or her
employer.
B. Confidentiality and Accuracy of Information
The confidentiality of information received in the course of duty must
be respected and should not be used for personal gain; information
given in the course of duty should be true and fair and not designed to
mislead.
C. Competition
While considering the advantages to the member’s employer of maintain-
ing a continuing relationship with a supplier, any arrangement which
might prevent the effective operation of fair competition should be
avoided.
D. Business Gifts and Hospitality
To preserve the image and integrity of the member, employer and the pro-
fession, business gifts other than items of small intrinsic value should not
be accepted. Reasonable hospitality is an accepted courtesy of a business
relationship. The frequency and nature of gifts or hospitality accepted
should not be allowed whereby the recipient might be or might be deemed
by others to have been influenced in making a business decision as a con-
sequence of accepting such hospitality or gifts.
E. Discrimination and Harassment
No member shall knowingly participate in acts of discrimination or
harassment towards any person that he or she has business relations with.
86 Total Supply Chain Management
F. Environmental Issues
Members shall recognize their responsibility to environmental issues con-
sistent with their corporate goals or missions.
However, well thought out a code might be it cannot cover every eventuality. For
example, under values they say ‘Optimizing the use of resources for which they
are responsible so as to provide the maximum benefit to their employers’. Their
Norms’, clauses 1 and 3, reinforces the need to put the employers interests ahead
of all else in gaining the maximum value for each dollar. The final section envir-
onmental issues could well be in conflict to such an approach. Likewise gaining
the maximum value for each dollar, in the short term, might not be in the best
interests of building up a long-term relationship with a supplier.
The more detailed a code the easier it will be for a member to find a way
around the code to fit a particular set of circumstances. The best any individual
can do is to understand the spirit of the code and to do their best to act as they
would have others do unto them.
Having said this, sadly not all people are honest, or even if in the past have
been honest can still be tempted. Thus there will always be a need for checks
and balances.
Fraud
Every organization has to be mindful of the possibility of purchasing fraud.
The ingredients of fraud are intent, capability and opportunity. Fraud is not the
same as making an error. Errors are mistakes and not intended to happen, fraud
is intentional and will include deception. Errors should be found by normal
checks and audits. With fraud the perpetrator or perpetrators will do their best
to hide what they are doing. Fraud in purchasing often includes collusion. But
what is fraud? Does a supplier who offers a free holiday to secure an order
commit a fraud? If the holiday is advertised widely, for example an advertise-
ment that says all purchasers of a particular model of a car this month will have
a free weekend at a holiday resort is legitimate for the advertiser, but if our pur-
chasing manager takes advantage of this offer when a cheaper car of another
make was available would this constitute a fraud? It does not take much
thought to see that the purchasing manager was putting his own interest ahead
of the company, and has acted unethically however, this would not constitute
fraud. Fraud is more devious and is often hard to detect. Much fraud is only
detected by outside information including disgruntled junior staff reporting on
their managers, or by ex-wives and in many cases discarded mistresses.
Some signs of possible fraud are:
The best protection against fraud is to have a culture of trust and integrity sup-
ported by internal and external audits. No code of ethics is going to prevent
large-scale fraud. A code of ethics can help people to understand the difference
between a business (free) lunch and a bribe.
Environmental purchasing
Environmental purchasing is a most important step in the war against global
warning and pollution. Sustainability and accountability for waste and pollu-
tion cannot be ignored. At the very least organizations need to be aware of
environmental issues and to make their concerns and needs known to their sup-
pliers. This will begin by management establishing a policy, communicating the
policy internally, and to their key suppliers. Although the USA has not signed
the Kyoto Treaty nonetheless Americans as a whole are very conscious of envir-
onmental issues and several State Governments have published environmental
purchasing codes. For example, in Minnesota the purchasing ordnance state
‘From copy paper to cleaners, automotive fluids to printing services, every
product purchased can have an impact on human health and the environment. To
reduce the quantity and toxicity of waste in Minnesota, state law requires state
agencies and other public entities to purchase recycled, repairable, and durable
goods’. Tools and resources are provided to incorporate environmental con-
siderations into standard purchasing practices (2007, www.pca.state.mn.us).
For further detail see ‘Green supply chain’ in Chapter 15.
Make or buy
Make or buy decisions: The fundamental objective of a sourcing strategy is to
determine where to make or buy a product or service and why. The sourcing
strategies for both manufacturing and service organizations are discussed sep-
arately although there are many obvious common features between them. The
sourcing strategy goes hand in hand with supply chain management.
Manufacturing
There has been considerable hyperbole regarding world class manufacturing
(WCM) and many articles and books have been written on the subject. There
have been a number of interpretations of WCM.
Some people associate WCM with working practices influenced by Japan’s
‘quality movement’. Others understand WCM to be manufacturing at the high-
est level of performance.
88 Total Supply Chain Management
1. Project brief
The process is best carried through by setting up a project team of about 10
people and defining the brief of the project. The project team should con-
sist of a project director (e.g. head of manufacturing), manufacturing staff
(e.g. industrial engineer, plant engineer, manufacturing manger, quality man-
ager), logistics staff (e.g. planning manager, distribution manager), market-
ing staff (e.g. brand managers) and commercial staff (e.g. accountant,
purchasing management and human resources staff).
When preparing the project brief it is useful to have those documents that
cover current company activities such as capital investment, annual operat-
ing plans and long-term plans. In addition, any other relevant reports (such
as information on competition, market place, economy and government regu-
lations) of the countries covering the scope of the strategy will help with
this activity. The project brief should clearly state the scope, time scale, deliver-
ables and resources required for the project.
2. Operational mission and objectives
The manufacturing mission defines the aim of manufacturing in the corpo-
rate strategy or the business plan. The mission statement must fit the cap-
abilities of the manufacturing function. Unless the mission is feasible it will
be no more than mere words or rhetoric. Usually the mission statement is
described in broad terms as illustrated by the following example:
This mission statement has a priority on low cost. Alternative priorities could
include one or more of: quality, customer service, rapid introduction of prod-
uct, visible presence in emerging markets, combating a dominant competitor,
etc. The point to note is that the mission has to be sufficiently specific for a
clear objective or objectives to be readily distinguished.
Manufacturing objectives consist of performance measures that the company’s
manufacturing must achieve as part of the annual operating plan. Achievement
of the objectives will result in the achievement of the mission.
3. Strategic factors
The understanding and analysis of strategic factors can determine the
success of a sourcing strategy. Strategic factors relate to the longer-term
90 Total Supply Chain Management
The purpose of this stage is to calculate the capacity of plant and services for
the projected volume and estimate the space required for each activity for each
manufacturing site. It is normally sufficient to carry out these analyses for the
current year, and at the mid-stage and at the completion of the plan or when a
significant event (e.g. the manufacture of a new product) occurs. The utiliza-
tion of assets as determined at this stage should help to establish what to manu-
facture and where, and the profitability of each site.
5. Strategic options
Strategic options determine how sourcing or own manufacture is going to
meet the objectives of the mission. It is useful to reiterate that the objectives
refer to performance measures (such as cost, flexibility, quality, etc.) and
strategy refers to how these objectives will be achieved. Strategic options
are normally expressed in a number of sourcing scenarios. These are
derived from the understanding of the competitive strengths and weakness
from the foregoing stages. As a general rule there should not be more
than eight scenarios. Eight scenarios are manageable and enable adequate
attention to be given to each scenario. A critical analysis of each scenario
is then carried out against the criteria of manufacturing objectives and
strategic factors. Two or three scenarios are then short listed for quantitative
evaluation.
6. Options evaluation
The aim of this stage is to evaluate two or three main options in order to
select the best strategy for the future. The analysis should take advantage of
simulation modelling tools to select a strategy by optimizing the total oper-
ating cost. Costs only need broad estimates for the evaluation of options.
The strategy should then be further tested by comparing the investment
costs of alternative development plans with quantitative tools such as dis-
counted cash flow (DCF) analysis.
7. Implementation plan
The success of a sourcing strategy for manufacturing will depend on how
effectively the changes have been implemented. There should be a struc-
tured implementation plan describing the phasing, responsibility, costs and
obstacles that have to be overcome.
The strategy itself should not have major changes every year or there will
be little chance of maintaining the strategic goal. Tactics should be continu-
ally adjusted to meet changing circumstances.
8. Review
As stated above, there is a need for regular evaluation and review of
progress to implement the strategy. In addition to the regular review the
entire strategy should be formally reviewed on an annual basis.
92 Total Supply Chain Management
Service sector
In the service sector the sourcing strategy buzzwords such as ‘outsourcing’,
‘off-shoring’ and ‘in-sourcing’ have gained currency. Outsourcing is the col-
laboration with a partner to manage a part of your business. An example is
IBM supplying and managing on-site the information and technology function
for Toyota. There are distinct categories of outsourcing in the service sector:
Background of outsourcing
A well documented example of business process outsourcing, albeit in manu-
facturing, is provided by the Coca-Cola Corporation. For over 100 years Coca-
Cola has been producing syrup and marketing bottled products. The actual
production and bottling of the product (to Coca-Cola’s strict standards) is done
locally by its global network of business partners. A huge explosion of out-
sourcing can be attributed to the concept of ‘core competence’ popularized by
Hamel and Prahalad (1994). The principle is fundamentally simple. For example,
by analysing and understanding Porter’s value chain (1985) an organization
can focus on the elements that are core to its business and outsource others
while maintaining strategic control. The examples of successful outsourcing
companies include Dell and CISCO. Dell Computers Company has focused on
its key activity as sales and outsourced non-core functions such as logistics and
maintenance. CISCO has identified design and network solutions as its core
activity and outsourced the manufacturing of infrastructure components.
Rationale of outsourcing
A particular advantage of outsourcing is cash flow, flexibility and releasing key
management resources, but other benefits include external expertise and cost
savings. There are several external factors driving the growth of outsourcing:
(technology and/or patent life) as the x-axis and product volume as the y-axis.
Sourcing strategy is determined according to the location of products on
the grid:
1. High technology/high volume: These products are suitable for own manu-
facturing. It will be appropriate to invest to retain the core strength.
2. High technology/low volume: When the volume is low the preferred strat-
egy is to ‘in-source’. This means that either the global manufacture of prod-
uct is centralized at a single site, or the capacity of high technology are
utilized by gaining orders from outside companies.
3. Low technology/high volume: After a period the technological advantage of a
product reduces and it becomes a mere commodity. If the volume is high then
a supply partnership can be considered with a dedicated third-party supplier.
4. Low technology/low volume: If demand is low and there are more than one sup-
plier available long-term supplier agreements/partnerships are not important.
Dedicated third
High Own manufacture
party
Volume
Flexible third
In-source
party
Low
Low High
Core strength/patent life
Off-shoring
Off-shoring is a form of outsourced managed services where skilled labour is
cheaper. Cost savings are primary benefits. Other benefits include time zone dif-
ferences enabling 24 hour services and access to more willing well-qualified
workers to tackle boring jobs. An example is call centres located in India serving
callers (customers) in England. There are some risks of off-shoring. These include:
The ways to minimize these risks include minimizing foreign travel, keeping
your software code and using a third-party broker.
94 Total Supply Chain Management
In-sourcing
In-sourcing means centralizing multiple, distributed operations into a semi-
autonomous unit. This is managed separately and accountable to the business,
like an outsourcer, but remains under the organization’s control.
The advantages of in-sourcing include:
e-Procurement
The influence of the Internet in the supply chain and electronic transfer of informa-
tion and funds is detailed in Chapter 12 and also in Chapter 14 the ‘Retail’ chapter.
The key aspect is that the Internet enables systems to communicate across
organizational boundaries. The various e-procurement models are:
Summary
In this chapter, we began with a discussion as to why procurement and a sup-
plier focus is an important building block of supply chain management. The
advantages of developing long-term relationships with key suppliers were
explained. It was shown that cost is only one aspect. When selecting suppliers,
reliability, delivering to specification on time and to the right quantity in short
reliability and stability are key issues. The advantages of outsourcing and
issues to consider when deciding whether to make or buy were also explained.
Other issues covered were ethics, fraud and e-procurement.
7
Inventory management
Introduction
Stocks of materials (inventories) are kept as a buffer against variations in
demand and to overcome uncertain supply. This buffer can be regarded as
safety stock. Inventory is held along the supply chain in various warehouses,
factories (work in process) and retail store shelves. These inventories can cost
from a minimum of 15 per cent up to 40 per cent of their value per year (stor-
age space, handling costs, energy costs including heating and refrigeration,
stock slippage and insurance). Therefore, careful management of stock levels
makes good business sense.
Location of inventory
As explained in Chapter 3, inventories usually reside in three stages of a process,
viz. input stocks (e.g. raw and packaging materials), in process stocks (e.g. semi-
finished products) and output stocks (e.g. finished products). Within each stage
there can be a number of stock locations, each holding a base stock. The ‘base’
stock is the amount of inventory essential to meet normal or planned demand.
Also at each location it is likely that there will be buffers of safety stock. Buffer
stock is held to meet the above average demand and to overcome uncertain deliv-
ery lead times. The more stock locations the greater will be the amount of stock
held. Consider a supply chain that has one factory, two warehouses, three distrib-
utors each holding base stock and buffer stock and compare to a situation where
the factory distributes direct to retailers. It does not take much imagination to see
that the greater number of stages in the supply chain, the greater amount of base
and buffer stock will be held. The ramifications of number and location of distri-
bution points and warehouses is considered more fully in Chapter 9.
Holding cost
Inventories can accumulate as a result of poor planning and scheduling or by
design. Generally, inventory is viewed as a negative impact on business as it
incurs costs of capital (interest paid or interest fore gone), storage space, hand-
ling, insurance, increased risk of damage and theft, and obsolescence.
Inventory management 97
Risk costs
Storage costs
• buildings,
• racking,
• special storage such as refrigeration or secure storage of dangerous goods,
• handling costs (specialised equipment, wages, etc.).
Finance costs
Most of the above require no explanation, it is readily apparent that old stock
whether it is old technology or simply no longer fashionable is hard to sell, and
in some cases scrap value will not even cover the original cost. On the other
hand, lack of inventory leads to lost production in the factory and lost sales at
the end of the supply chain. Holding inventory of materials and finished prod-
ucts therefore can be seen as an insurance against uncertainty of supply and to
overcome unforeseen variations in demand.
Inventory management is a good indicator of the effectiveness of supply chain
management. It is relatively easy to achieve higher levels of customer service
by accumulating excessive stocks. It will also obscure short-term operational
problems. But this is a costly and risky option in terms of cash flow. Obsolete
inventory, be it for changes in technology, fashion, or in foodstuffs past the use-
by-date has little salvage value. It is vital to optimize the inventory level.
ROQ ROQ
ROL
Safety
stock
Time
LT1 LT2
That is, when the stock drops to a certain level, a re-order is triggered of a pre-
determined amount. The ROQ takes into account past demands and the lead
times for a re-order to be satisfied. The aim is to have as small amount of inven-
tory as possible on hand at any one time, and the ROQ should likewise be as
Inventory management 99
Maximum
level
T Review period
Q1 Q2 Q 1/Q 2 Order quantity
LT1/LT2 Lead times
Stock
Time
LT1 LT2
T T
That is, the warehouse does not decide the quantity of the order, but will
receive a delivery as determined by the production schedule. Normally a fixed
interval review model with a forecast demand for manufacturing planning is
used in a push system.
With the support of information technology, businesses are moving towards a
virtual inventory system with a single stock concept which can be held any-
where in the system, be it on order with the supplier, in production or at the
point of sale (POS). This is the concept of virtual inventory management (VIM)
or electronic inventory. Thus, instead of considering stocks of raw materials,
work in progress at the various stages of production and finished goods in ware-
houses as separate stocks of inventory, purely because of their physical location,
inventory is now considered as being part of one single stock.
• There is no slippage of stock due to theft or damage. This means that what
the computer shows as being in stock is correct.
However the supplier might only deliver in packages of 100, thus each
order would be for 3600 rather than 3651 or may be 3700. As the total
demand is 60,000 per year if each order is 3600 there will be 16 or 17
orders per year.
Cost of ordering
Cost of ordering might not seem to be a big cost (order form, an envelope and a
stamp). However, consider the savings made when the British Stock Exchange
implemented an electronic share transfer system in the mid-1990s. Prior to this
share transfer cost 30 pounds per transaction, once share transfers were on-line
or ‘paperless’ the cost was reduced to 30 pence per transfer. Many organizations
have made savings of a similar magnitude by adopting an on-line purchasing sys-
tem. For example, in the supermarket bar coding at the checkout can trigger an
automatic on-line re-order when stock of a particular item drops to a preset level.
This will save on staff numbers which would in a manual system be required to
physically count stock, calculate forecasted usage, and raise order forms, etc.
for example, customers may increase an order, machinery might break down,
or supplier might be unable to deliver on time due to transport problems.
There are key parameters affecting the calculation safety stock:
– forecast accuracy
– lead time
– expected service level
Vendor-managed inventory
The use of a third party (3PL) to take over some, or all, of a company’s logis-
tics responsibilities is becoming more prevalent. 3PL is simply the use of an
outside company to perform all or part of the firm’s materials management and
102 Total Supply Chain Management
The generally accepted methods to maintaining the integrity of stock records is:
“A” class items (%) “B” class items (%) “C” class items (%)
Number held 11 29 60
Value 54 41 5
Performance measures
Chapter 19 is our measurement chapter, but as each chapter is designed to
stand alone inventory measurements are discussed here. Performance meas-
ures are needed to drive continuous improvement, if we do not know how well
we are performing, if we do not have measurements, how can we know if we
have improved, in terms of client satisfaction, stock outs and stock turns.
Measurement is also necessary to set directions and targets for the future. The
criteria for performance measures should cover a balanced approach to all key
parameters of the supply chain and should provide operational measures rather
than purely financial measures. Measures should be simple, easy to define and
easy to monitor. In determining what should be measured it is useful to get
away from standard accounting measures. Supply chain management require-
ments are different from those of the accountants. In determining our own
measurements we should ask:
Stock turn
‘Stock turn’ is the ratio of the total sales (or throughput of a product) and the
actual stock at any time, both being expressed in either money or volume. The
objective is not only to maximize the stock turn (i.e. minimize average stock
level), but also to maintain stock availability. Stock availability (the percentage
of demand that can be met from available stock) is another measure of per-
formance; availability can also be measured by the number or percentage of
orders satisfied within a given target time frame.
The unit of stock turn is a number or ratio. It is also a common practice to
express stock profile in terms of equivalent weeks or days of stock. For example,
if the cost of goods sold (raw materials plus direct labour and other manufactur-
ing costs but not overheads) is £25,000 and the amount of stock of finished goods
on hand totals £5000, then the number of days of finished goods equals 73 days
(5000/25,000 365 73). That is, on past performance it is going to take just
two and half months to sell all the finished goods we have on hand. Assuming
that we have already paid the suppliers and have paid our workers’ wages and
paid the other costs of production, this obviously means that our inventory of fin-
ished goods is putting pressure on our cash flow. The same types of calculations
can be made for stocks of raw materials and work in progress.
One company we visited was proud of the fact that in their high street stores
they only ever had 7 days of retail stock (own product) on hand. Their re-order
system to their central warehouse was on-line and re-orders were delivered
within 24 hours. The warehouse of finished goods held 6 months’ stock, and
the stockpile of raw materials for production amounted to 7 months’ supply.
106 Total Supply Chain Management
Assuming suppliers were paid within 1 month of supply, this meant that this
company was waiting 13 months and 7 days to recover the cost out-laid for
stock! Not really anything to be proud of when looked at in this fashion.
The share of stock by primary materials (i.e. raw materials and packaging
materials), work in progress and finished products varies according to the
products and method of manufacturing as illustrated in Figure 7.4.
7% Finished goods
42%
65%
Work-in-progress 6%
52%
Engineering Fast-moving
batch consumer goods
(21)
(12)
(10)
(5)
(3) Finishing
Preparation and (3) (3)
and process packing
(11) (5) (1) (2) (2) (3) (2)
Suppliers Customers
of each week in graphs and calculate planning efficiency figures for the week
and cumulative year-to-date. But all this effort is only of any use if the infor-
mation, however expressed, leads to corrective action being taken. Too many
measures too often will only serve to confuse the real issues. Scott and
Westbrook (1991) introduced the concept of a pipeline map, to present a snap-
shot of the total stock in a supply chain. In Figure 7.5 the supply chain of an
FMCG product is mapped by a series of horizontal lines representing the aver-
age time spent in major processes between stock-holding points, and a series of
vertical lines showing in the same scale (e.g. days), the average stock cover at
each point. Pipeline volume is the sum of both the horizontal and vertical lines
and represents the time needed to ‘flush’ the inventory in the supply chain at an
average rate of throughput.
Pipeline mapping is a useful tool to understand the planning performance of
a supply chain, in particular inventory management, but additional analytical
techniques should be used to identify the key areas of improvement.
Cycle times
‘Asset turn’ is the ratio of total sales and fixed assets. It is important that the
value of fixed assets is updated by taking into account the depreciation rate for
the type of asset according to a defined accounting policy of the company.
Assets utilization (time-based) is more relevant to all manufacturing perform-
ance. However, the measure of assets turn (value-based) provides an indication
of investment in the supply chain. In the short to medium term this measure-
ment is of little use as the investment in the assets has already been made and
the measurement is against a past decision. In biblical terms the sins of the
fathers are being visited on the next generation.
108 Total Supply Chain Management
‘Order cycle time’ (also known as lead time) is the elapsed time from the
placement of an order by the customer to the receiving of delivery (see Figure 7.6).
It is important to state standards to suit customer requirements and analyse the
total cycle time into relevant components. Lynch and Cross (1991) claim that
only 5 per cent of cycle time is devoted to adding value. In many cases the
product is waiting to be worked on 95 per cent of the time. (This excludes raw
materials in stock and finished goods in the warehouse.)
‘Order fill’ is the percentage of first time satisfied orders. From the cus-
tomer’s point of view this is probably the most important measurement. The
order is the correct quantity and quality. The next most important measure as
far as the customer is concerned is if the delivery is on time! ‘On time delivery’
can be expressed as a percentage of full orders delivered on time. ‘On time’
may be determined by the standards of order cycle time set for a customer or
the agreed date of delivery as set by the customer.
Summary
This chapter has considered the importance of having sufficient stock on hand
so as not to delay production or to keep the customer waiting longer that is
acceptable. However, holding stock is a cost. A balance has to be found
between achieving the objective of customer satisfaction and the objective of a
reasonable return on assets employed. Stocks of inventory are a major asset
in manufacturing and retailing and in the intermediate stages of distributing
and warehousing. This chapter has covered several approaches to inventory
management within the supply chain.
8
Operations management in
the supply chain
Service operations
The distinguishing features of service operations are that the service cannot be
provided without customer input and that ownership does not change. Service
includes transportation of goods and people. Transportation can only take place
if there are goods to move or passengers to carry. At the end of the transportation
ownership has not changed, when you travel in a bus or aircraft the passenger
110 Total Supply Chain Management
does not own or get to keep the seat! In other service operations such as a con-
sultant providing advice without the customer the service cannot be provided
and again there is no change of ownership. A more mundane example is a hair-
dresser, without a customer hair cannot be cut! Further examples are a freight
train, it can travel from one city to the next but if it carries no freight it has not
carried out its function. The same applies to a bus service, the bus can leave the
depot and travel around the planned route and finally return to the depot, but
unless it has carried a passenger its function has not been fulfilled. The function
is to carry passengers not to drive in circles without passengers:
The amount of interaction between the customer and the service providing
organization depends on the type of service offered. For example, a computer
consultant will have high ‘face-to-face’ interaction with the customer, whereas
service provided over the Internet such as currency exchange conversion calcu-
lation will have no face-to-face interaction. Irrespective of the level of face-
to-face interaction, without customer input the service cannot be provided.
However, this does not mean that the customer always has to be present when
the service is being provided. For example, when a vehicle is due for a routine
service, once delivered to the garage the driver does not have to be present, but
unless the vehicle is available the service cannot be provided. With all of the
above resources are held waiting for the input of a customer before an output
can be provided. In manufacturing operations the major difference is that own-
ership changes hands and outputs, that is finished goods, can be stored without
customer input.
Manufacturing operations
In manufacturing operations customer interaction is not essential. For exam-
ple, cars can be manufactured, food can be harvested and processed, hamburg-
ers can be made, and houses can be built, all without customer input. Although
it might be desirable that the customer has input into the design and the speci-
fications of the product (be it a car, a hamburger or a house), customer input is
not essential. In a ‘bespoke’ operation the desired policy is to make only to
order, that is manufacture will not begin until an order has been received. The
limitation of not beginning until an order has been received is self-imposed and
can be over ridden. For example, a house builder might prefer not to begin
building unless a client has signed a contract, nonetheless the builder can
change his strategy and build a house without having a client (in the belief that
the house will be sold before it is completed or soon after completion).
Operations management in the supply chain 111
Resources
Resources include:
• Materials: Materials include the goods that are consumed by the system,
goods that are transformed by the system, and finished goods held for sale.
Utilities such as fuel, water electricity and gas are also materials. Conversion
or transformation refers to changing the shape, form or combination of mate-
rials to produce an output. For example, by assembling 12,000 components
sourced from a variety of suppliers a car is ‘manufactured’.
• Machines/equipment: These include plant, fittings, tools, vehicles, storage
facilities available to the operating system.
• Information systems: This covers the flow of information within the organ-
ization, and externally from and to suppliers, customers and other stake-
holders. Electronic systems are important communication conduits but they
are not the only means of communication in an information system. An
information system includes all means of communication, for example
speech, newsletters, manuals, brochures, radio, television, etc.
• People: People not only means the number of people employed in the oper-
ating system, but includes knowledge and skill levels of the people. People
also includes the pervading culture of an organization including intangibles
of dependability, attitude and shared values.
• Real estate: This includes owned, leased or rented; offices, warehouses, fac-
tories, display areas, yards, parking space and hard standing, etc.
System structures
In considering system structures, Wild uses the following symbols:
O the transformation process of combining resources including utilities
to add value;
V ‘stock’ of input resources and output stocks, or ‘queue’ of customers-
waiting to enter the system;
➜ the flow of resources through the system;
C the customer. Note, the customer does not have to be external to the
organization, but may be an internal customer. The ‘internal customer’ is the
next person, or department, in the process.
V
O
C Examples
(a) Call centre waiting for customers.
(b) Ambulance or fire service.
(Resources)
O
C V Examples
(a) Customers waiting in line (queue) for
service (e.g. supermarket check out).
(b) Customers make an appointment to see a
specialist for advice (e.g lawyer, doctor, hair stylist).
V
O
C V Examples
(a) Empty containers in western sea ports in the USA
waiting for freight, and at the same time container
shortages in eastern sea ports in Asia.
(b) Taxi cabs waiting for fares at the airport, and at
the same time passengers frustrated as there are no
taxis available at downtown hotels.
Overall there are three basic service or transport structures (Figures 8.2–8.4)
and four basic manufacturing or supply structures. Most organizations will
consist of a combination of systems.
Operations management in the supply chain 113
This structure shown in Figure 8.7 applies where it is either not feasible to
hold input stocks or it is not desirable to hold input stocks. The customer is
supplied from an output stock.
Figure 8.8 shows just in time or lean production. This is best explained by
the ‘Toyota 72 Hour Car’ concept. With this model Toyota holds no stocks of
input materials and has no stock of finished cars. The idea is that the purchaser
will visit a showroom and be able to see a car indicative of the type of product
that Toyota makes. There will not be a wide range of vehicles to inspect;
instead the purchaser will be shown on a computer screen the various models
available and a list of optional specifications. The purchaser will then select, by
keying into the computer, the basic car model and required details such as size
of engine, type of transmission, colour scheme, type of upholstery, sound sys-
tem and so on, but all chosen from a given list. This information will now be
electronically transmitted to the factory and to the suppliers of the factory.
Within 72 hours the car will be delivered to the purchaser. The benefits include
the customer getting what they want. But in fact the customer is now more than
just a customer; the customer is now very much part of the manufacturing
process. In effect, by keying in their requirements the customer initiates the
whole process, raises the raw materials order for the factory, and updates the
production schedule. From Toyota’s point of view there is a further substantial
benefit. Presumably the purchaser will pay on delivery, so there will be no cash
flow problems (within a 72-hour period it is unlikely that Toyota will have paid
for the materials or for the direct labour). As Taiichi Ohno of Toyota said, we
are ‘Looking at the time line from the moment the customer gives us an order
to the point where we receive the cash. And we are reducing the time line by
removing the non-value wastes’. Obviously, a system such as this does not, and
cannot, make allowances for mistakes. It relies on good planning by manage-
ment, quality designed into the product, well-trained workers who are empow-
ered to work as a team, suppliers who are trusted to supply when required and
who are also part of the team, an integrated computer system and the elimina-
tion of ‘non-value wastes’. We challenge you to ring any car dealer, other than
for a Japanese brand, and ask how long it would take for a car meeting your
various requirements to be delivered. Unless you pick a stock vehicle, and the
colour you want is in stock, you are likely to be told that you will have to wait
about 72 days!
V O V C
Examples
(a) Manufacture from a stock of input materials and hold
a stock of finished goods. Customer draws from the system
(e.g. Ford motor company).
(b) Manufacture drawing from own warehouse of materials
and stockpile for expected future demand, (e.g. womenís
shoes manufactured in winter months for release in spring).
V O C
Examples
(a) Make to order, such as manufacture of a high voltage
transformer. High voltage transformers are high capital items
and are made to customer specification. It is possible to build
a high voltage transformer without a customer order, but few
manufacturers would do so, due to the specialised nature of
each transformer. Likewise few ship yards would build a
cruise liner without a contract from a customer.
(b) Retail or supply from warehouse. Goods are stocked
and the customer draws from the system. Unlike service
structures, ownership changes hands.
O V C
Examples
(a) Food processing. Once the food is harvested it goes
straight into production. If not processed straight away after
harvesting it would deteriorate.
(b) Oil drilling. Once the oil begins to flow it is held in stor-
age tanks.
(c) In a manufacturing operation this structure would apply
where materials are ordered just as required, and a stock of
finished goods are held.
O C
Examples
(a) A small house building firm. Materials are ordered as
required and once finished the client takes possession
(ownership changes).
(b) Just in time or lean production as pioneered by the
Japanese.
Combined structures
Although seven basic service system structures are shown in the above figures,
in reality most service organizations will employ a combination of structures
(see Figures 8.11–8.13).
For example, consider the freight consolidator and forwarder. The customer
does not have to wait to enter the system, but arranges for a part container load
of goods to be left with the consolidator for on forwarding. The structure for
116 Total Supply Chain Management
this stage is as per Figure 8.9. Note, this is a transport service and ownership
does not pass to the freight consolidator.
V
O
C
The freight consolidator and forwarder’s policy is to only ship fully loaded
containers. The second stage of the operation is out of sight of the customer(s)
and is the loading (consolidating) of the container. As this is a separate opera-
tion it can be shown as a back room ‘factory’ type activity (see Figure 8.10).
This represents a container being loaded from a stock of goods (waiting to be
loaded), culminating in delivery to the destination.
V O C
V
O V O C
C
A further example is the small building firm. The owner of a block of land
seeks information from the builder as to what can be built within the parame-
ters of local regulations. The builder has a book of house designs which can be
altered to some degree to meet the clients needs. Eventually both parties agree
but as the builder is currently working on another house, the client might have
to wait 6 weeks before construction can begin. Once the house is completed
ownership of the house passes to the client. This combined structure is shown
in Figure 8.12.
(Builder)
Oi Vii Oii
C Vi
V Oi V Oii C
breaking down and storage of the inwards shipment, the second operation is
supplying a retailer from stock.
Five V’s
Slack et al. (2006) also refers to the input–process–output model, but add four
V’s of processes to analyse processes. Their four V’s of processes are: ‘Volume,
Variety, Variation and Visibility’ to which we have added a fifth ‘Velocity’.
Volume
Processes with a high regular demand will have a high degree of repetition. In
operations management this means that tasks are repeated often and it makes
sense to train staff to specialize in a limited number of tasks. Tasks become
systemized and repeated. Henry Ford back in 1913 is reputed to have said give
me a stupid person and in 24 hours I can make that person a specialist, a spe-
cialist in a very limited and repetitive operation. With high volume processes
the opportunity to mechanize and automate and/or to use robots is obvious. In
the supply chain if components can be standardized and common parts are
used in the manufacture of different models then ordering in bulk at regular
intervals will be possible. The margin for manufacturing errors by the supplier
will be minimized and unit costs will reduce. Low volume demand on the other
hand is not likely to make high throughput technology cost effective. The same
applies to transportation costs. Full containers reduce the cost per unit. Parcel
post, where one item sent by courier will obviously increase the unit cost.
Variety
The greater the variety the more stock has to be held and the amount held will
multiply with the number of stocking points within the supply chain. As Slack
et al. say ‘A high level of variety may also imply a relatively wide range of
inputs to the process and the additional complexity of matching customer
118 Total Supply Chain Management
Variation
Under this heading Slack et al. ‘say that processes are easier to manager when
they only have to cope with predictably constant demand resources can be
geared to a level that is just capable of meeting demand’ (2006, p. 21). In short
all activities can be planned in advance. This applies to ordering materials to
arrive ‘just in time’ and for outputs to be completed to meet demand dates just
in time without the need to hold input or output stocks. By contrast when
demand is unpredictable buffer stocks will need to be held to cover sudden
changes in demand. This applies especially in the fashion industry, for exam-
ple ladies footwear. The range will be designed months in advance of the next
season, but until the new season’s pre-orders are received from retailers, and
then subsequently once the season is under way and repeat orders flow in
knowing what amount and which materials to hold will be difficult. Lower
variety eases the stock holding pain, but if variety is too low sales will be lost.
Visibility
Visibility in the supply chain relates to the exposure of the process. In Chapter
15 we introduce the ‘bull whip’ effect which occurs when each component of
the supply chain only receives one way information from the next down stream
component. The result is an escalating and wildly fluctuating demand pattern
known as the bull whip effect. If information is shared, that is visibility of the
intensity of the bull whip effect can to some extent be softened. Front office is
usually highly visible, that is in materials movement acceptance of goods for
consolidation, but the consolidation and transportation is not visible to the cus-
tomer. Visibility can be increased for goods in transit by the use of bar coding
or RFID tags to track movement of materials. In general, processes that are
directly in contact with customer (e.g. retail) should have more visibility than
those that are carried out in an office or a factory.
Velocity
Velocity, or time, is an important aspect of supply chain management. Measure-
ment of time performance are:
A process related to lean and agile supply chain (see Chapter 13) should
increase its velocity.
The Supply Chain Council (www.supply-chain.org/) recommends a metric
system for performance covering the four areas of customer satisfaction/qual-
ity, time , cost and assets. They provide a range of measures for each category
and also provide benchmarking for their members. A sample measure is sup-
ply chain response time (SCRT).
This represents the measure of time taken to recognize and react to changes
in demand. For the Supply Chain Council perfect order fulfilment only occurs
when all orders are delivered in the quantities required, on the agreed delivery
date, and documentation is complete and correct, and the goods are received in
perfect condition and meet specification.
Infrastructure facilities
What are infrastructure facilities? They include factories, offices, equipment
and hardware, conversion technology and third party suppliers/service
resources. Infrastructure facilities do not include people, procedures and sys-
tems. Here we consider the challenge for selecting the most appropriate infra-
structure facilities, and whether this challenge differs for manufacturing and
service industries?
The challenges of infrastructure facilities are far more complex than cash
flow management, and the parameters are not of the short-term nature of
labour and software. The outcome of an investment decision for a manufactur-
ing facility is likely to last for 10–100 years. Likewise, it normally takes sev-
eral years of disciplined effort to transform an existing weak service unit into a
strong unit.
Manufacturing sector
Skinner (1969) described manufacturing facilities as either a corporate mill-
stone or a competitive weapon depending on the strategy applied and pursued.
As Hayes and Wheelwright (1985) observed in a manufacturing business, a
number of interrelated functions (such as marketing, innovation, engineering,
purchasing, manufacturing and distribution) work towards a common objective
of satisfying the customers and at the same time ensuring an attractive return
on investment for the shareholders.
Of these, the manufacturing function share the organizations assets and
people. According to Hayes and Wheelwright the four stages in the strategic
role of manufacturing are as follows:
• 98 per cent of the products sold are either own manufactured or co-produced.
• 90 per cent of the assets of the company are for manufacturing.
• 75 per cent of the people work in manufacturing.
It is not enough just to formulate and pursue an ‘up front’ manufacturing strat-
egy, no matter how good the strategy is. To maintain a competitive advantage it
is essential to support the strategic planning of facilities with the ongoing mon-
itoring of performance and with continuous improvement programmes. The
management of manufacturing facilities should be dynamic with the relentless
pursuit of the elimination of unnecessary non-value adding expense and always
with the objective of adding value for customers. Competitive advantage once
achieved through a strategy such as investment in new facilities will require
hard work if the advantage is to be retained.
Service sector
A service business is one where the perceived value of the offering to the cus-
tomer is determined by the service rendered than the product offered.
This intimacy of a customer in a service function has led to the perception
that service cannot be stored and has to be produced and consumed simultane-
ously. Of course, there are some services which have to be produced at the
delivery point, such as emergency medical treatment. However, in a higher
proportion of services the activities which can be isolated from the interaction
of the customer are uncoupled from the organization. The isolated operations
can be managed using the similar methods as used in manufacturing opera-
tions. The examples of these types of services include tailors, banks and hotels.
Whether it is a small scale or a large-scale operation, all services can be
grouped as direct services or isolated services as shown in Table 8.1.
The strategic and operational considerations related to infrastructure facili-
ties for isolated services are likely to be similar to those for manufacturing
operations. For direct service also, it can argued, that manufacturing principles
can be selectively applied such as the application in fast foods services. Mass
service is often like pre-setting the work outside the machine running cycle in
a mass production packing line.
Operations management in the supply chain 121
Summary
This chapter has explained the importance of operations management in the
context of supply chain management. To do so the traditional operations man-
agement input–process–output model was introduced and extended to include
system structures. The five V’s of Volume, Variety, Variation, Visibility and
Velocity were explained and how these ‘V’s’ can be managed to add value (yet
another ‘V’) for the supply chain. The chapter concluded with a section re
infrastructure facilities. There are many books, including Total Operations
Solutions by Basu and Wright (2005), dealing with detail processes in opera-
tions management. Our primary objective of this chapter is to set the critical
role of operations management as a building block in the physical flow of the
total supply chain.
9
Distribution management
Introduction
The physical movement and delivery of goods and services to customers is a
key objective of supply chain management. The three key aspects of customer
service are specification, price and timing. Specification and timing are often
measured by the metric, ‘on time in full’ and are the direct result of distribution
management. Distribution management is closely linked with the ‘customer
intimacy’ model of Treacy and Wiersema (1993) but many organizations out-
source distribution management to third-party hauliers thus reducing the fre-
quency of direct customer contact.
Web-based software and e-market places have increased opportunities
available to e-supply chain managers in all operations including the service
industry.
Information technology and the Internet has improved the access to infor-
mation, enabled currency transactions, and improved data accuracy. However
the real effectiveness of supply chain management is the physical movement
of materials from source to customer. Important components for every
e-commerce, on-line trading and virtual supply chain are factories, warehouses
and transport.
It is vital that a physical distribution process is in place to ensure the
performance of e-supply chain for both virtual and physical activities, but it is
well recognized that supply chain order fulfilment is the Achilles heel of the
e-business economy.
This building block, distribution management addresses the challenge of
distribution efficiency under three headings:
1. Physical distribution
2. Strategic alliances
3. Customer relationship management
Physical distribution
In the same way that enterprise resource planning (ERP) is concerned with
information flow, suppliers and inbound logistics, distribution management is
Distribution management 123
• Distribution strategy
• Warehouse operations
• Stock management
• Transport planning
Distribution strategy
It is important that a company in a consumer focused business has a defined
distribution strategy. The first criteria of distribution strategy is to decide
whether the management of activities should be by the company or by a third
party. With assets (buildings, equipment and transport vehicles) the strategy
can go three ways:
Some of the various strategy mixes are shown in Table 9.1. Note there are 64
possible combinations, for example own premises, leased premises, own man-
agement of premises, third-party management of premises, own transport, leased
transport, or third-party supplied and managed transport, and so on. Table 9.1
shows 24 of the most likely combinations.
There are some obvious advantages of distribution management by a third
party, for example the distribution expertise of third-party companies, the
avoidance of capital outlay and under utilized equipment. It has become a pop-
ular practice with many original equipment manufacturers (OEMs) organiza-
tions to outsource warehousing and transport to third-party companies. However,
as the delivery of the finished products is closest to the customer on the supply
chain, there could be some degree of risk if the management of outbound logis-
tics is totally left to third parties.
A distribution strategy is significantly influenced by: economic factors,
channels of distribution and their location, location of service centres and
warehouses. Shorter channels are ideal especially for perishable items, services
124 Total Supply Chain Management
Warehousing Transport
Channels of distribution
It is important for a manufacturer of fast-moving consumer goods (FMCGs),
that the distribution strategy should consider the opportunities for both present
and future business through an appropriate mix of the channels of distribution.
Examples are:
Factory to:
• distributor,
• wholesaler,
• supermarket,
• direct to end user (e.g. Dell).
The distribution strategy should also include the company policy of exclusive
agents or stockists and of direct mail or on-line order to end users. Figure 9.1
Distribution
Supermarket
centre
Consumer
Factory
Mail order
Distribution Regional
Wholesaler Retailer
centre depot
Third-party
supplier
Manufacturing sector
Civil Engineering 1 (direct)
Foods manufacture 2 Supermarket
Car manufacturer 4 Overseas agent
Distributor
Retailer
Service sector
Original supplier No. of stages Intermediaries
Hairdresser 1 (direct)
B2C Internet sale 2 Transporter
Hospital 2 Doctor
Charter Airline 3 Holiday company
Travel agent
Facilities location
Another important aspect of distribution strategy is location of distribution
warehouses. The location, design and operations of distribution warehouses
are all vital ingredients of a supply chain – not only for cost optimization
but also for the quality and safety standards of products and for improving
customer service by a faster turnaround at the warehouse. There are computer
simulation models available for determining the size and location of a distribu-
tion centre, but local body planning regulations, the proximity of a highway
and a big demand centre very often will be the prime determinants of the
location.
126 Total Supply Chain Management
1. Cost factors
2. Revenue factors
3. Local factors
The cost factors have three main components: variable cost, fixed cost and
inventory cost. The variable cost of a warehouse operation include the costs of
labour, material and utilities. The accessibility to labour and materials will
affect the variable cost. The fixed costs are associated with the provision and
maintenance of facilities and the cost of security services. When the number
of facilities is reduced there is a saving in the fixed cost. If we, for example,
centralize the inventory of a number of warehouses to a single location the
base stock will remain the same but the safety stock will reduce according to
the following equation:
Sn S1(n)/n
where Sn is the sum of safety stocks for n locations,
S1 is the safety sock for 1 location, and
n is the number of locations.
The location of a retail outlet or service centre has traditionally, and for obvi-
ous reasons, been determined by the proximity to customers, or expected growth
of population (and future customers) in the region. The opening of a warehouse,
such as Ikea, in the proximity of a town has been known to increase the revenue
in that town. With the impact of e-commerce the traditional ‘bricks and mortar’
locations are now to some extent challenged by ‘clicks and mortar’, nonetheless
large new super stores and shopping malls continue to open and to prosper.
The local factors influencing the selection of a location include management
preferences, congeniality of the district, local infrastructure and transport net-
work, industrial relations and availability of trained labour. There are often
incentives or investment grants available to encourage organizations to estab-
lish facilities in areas designated for regeneration or industrial development.
efficiently meet their requirement was to design the facility ‘from the
inside out’.
The approach: Due to the sensitive nature and possible closure of ware-
housing it was important to keep the study confidential. The project started
with a feasibility study into various configuration options. As the client
had available land to build the new warehouse, a study into the location was
not needed and this meant that we could start calculating the required size
immediately. The stock was analysed and activity data from the three ware-
housing locations to work out the site size needed in conjunction with the
proposed layouts. After the decision on the favoured design had been made, the
option was developed to the level where the scheme could be put-out to
a design and build organization for tendering. During this stage detailed
analysis was produced of proposed floor space, equipment requirements
and pallet racking locations. Another aspect of the project was the produc-
tion of staffing requirements together with a staff structure diagram.
The result: The floor space was reduced from the three combined units
of 80,000 to 50,000 square feet in the new single distribution centre
by removing duplication of stock and improving operating techniques.
Also, reduced were staffing levels by 30 and other costs.
Trade counters with minimal stock holdings at the old sites were
retained but the major storage facilities were closed. Due to its central loca-
tion, the new warehouse provides consistent, accurate delivery through-
out mainland UK within 3–4 working days from receipt of order.
*Fosroc Expandite is one of the largest manufacturers of construction
and civil engineering products in the world.
Source: Supply Chain Planning UK Ltd. (2007)
Warehouse operations
The operations of a distribution warehouse in general, can be represented by
Figure 9.2. There are good opportunities of ‘re-engineering’ the warehouse func-
tions when the total process from reception to despatch is critically examined.
The design issues of a warehouse include:
(a) Storage systems
– block stock
– back-to-back racking
– double deep racking
– narrow aisle racking
– drive-through racking
– mobile racking
(b) Handling systems
– counterbalanced trucks
– reach trucks
128 Total Supply Chain Management
– turret trucks
– stacker cranes
– automated guided vehicles
– overhead cranes
(c) Product quality
– ambience
– chilled store (e.g. margarine)
– cold store (e.g. ice cream)
(d) Safety and control systems
– detection systems
– sprinkler and fire hydrants
– warehouse management system (WMS) software
Re-palletizing
Goods Storage
Inspection
reception allocation
Bulk storage
Replenishment
Picking
Packing/
Despatch Order assembly
labelling
Given data: In addition to the above information ZCI has provided the
results of an internal study to estimate the peak pallet holding for 2002.
The calculation is shown in a spreadsheet which contains the following
summary data for 2002:
• Annual sales 217,390 boxes
• Product groups 49
• SKUs 1839
• Peak stockholding 8385 pallets*
* Euro pallets 800 mm 1000 mm
Next step: Based on these submissions the Zigafroos board will short-
list prospective partners and issue a comprehensive request for proposals.
Please deliver your proposal to our Edgware offices for the attention
of Mr Harry Zoogorilla.
Exercise
Provide your recommendation on size and configuration for new
Zigafroos Storage Centre. Address the following issues:
1. Size of warehouse required: design for 5 years of growth
– Maximum pallet positions for design
– Approximate area for the chosen storage method**
2. Outline layout
– Pallet and shelving configurations
– Picking and despatch area
3. Recommended mechanical handling equipment
Provide the rationale for your choice of design and equipment and an
indication of your company’s experience with this type of operation
** As a rough guide for estimating approximate area for given pallet
positions you may use the data in the following table:
Approximate area (square metres) requirement per 100 pallets
Pallet dimension 1200 mm 1000 mm
Answer to Question 2
The outline layout will depend on the configuration of the space avail-
able. Assuming a greenfield site, a configuration could be:
Width of the warehouse 100 m
Span between columns (bay) 17 m
Storage space 3 bays
3 17 100
5100 square metres
Picking and despatch area 2 bays
2 17 100
3400 square metres
Total warehouse area 8500 square metres
Answer to Question 3
For a narrow aisle five high warehouse recommended mechanical han-
dling equipment:
Storage and retrieval Reach trucks
Despatch area Counterbalanced Fork lift trucks
Picking area Hand pallet trucks
Stock management
As indicated earlier in Chapter 7, stocks are kept as a buffer along the supply
chain in various warehouses, factories (work in process) and retail store shelves.
These inventories can cost between a minimum of 15 per cent up to 40 per cent
of their value per year (storage space, handling costs, energy costs including
heating and refrigeration, stock slippage and insurance). Therefore, careful
management of stock levels makes good business sense.
In traditional stock management there are two basic approaches see Chapter 7,
namely the pull approach and the push approach. In a pull system a warehouse is
viewed as independent of the supply chain and inventory is replenished with order
sizes based on a predetermined stock level for each warehouse. The stock manage-
ment model for the pull system is normally geared to establish re-order level
(ROL) and re-order quantity (ROQ). That is, when the stock drops to a certain
level, a re-order is triggered of a predetermined amount. The ROQ takes into
account past demands and the lead times for a re-order to be satisfied. The aim is
to have as small amount of inventory as possible on hand at any one time, and the
ROQ should likewise be as small as possible. However in some processes, such as
a batch system, there will be a minimum amount that can be produced and in other
cases there can be economies of scale which will determine the optimal size of an
order. The push method is used when economies of scale in procurement outweigh
132 Total Supply Chain Management
the benefits of minimum inventory levels as achieved in the pull method. That is,
the warehouse does not decide the quantity of the order but will receive a delivery
as determined by the production schedule. Normally, a fixed interval review model
with a forecast demand for manufacturing planning is used in a push system.
With the support of information technology, businesses are moving towards
a virtual inventory system with a single stock concept which can be held any-
where in the system, be it on order with the supplier, in production or at the
point of sale (POS). This is the concept of virtual inventory management
(VIM) or electronic inventory. Thus instead of considering stocks of raw mate-
rials, work in progress at the various stages of production and finished goods in
warehouses each as separate stocks of inventory, purely because of their phys-
ical location, inventory is now considered as being part of one single stock.
The movement and management of inventory in a warehouse is further
enhanced by the application of advanced technology such as warehouse man-
agement systems (WMS) and radio frequency identification (RFID).
The evolution of WMS is very similar to that of many other software solutions.
Even though WMS continues to gain added functionality, the initial core function-
ality of a WMS has not really changed. The primary purpose of a WMS is to con-
trol the movement and storage of materials within an operation and process the
associated transactions. Directed picking, directed replenishment and directed put
away are the key to WMS. The key functionality of a WMS must include:
• A flexible location system.
• User defined parameters to direct warehouse tasks by using live documents.
• Built-in level of integration with data collection devices or an established
ERP system.
RFID is an automatic identification method, relying on storing and remotely
retrieving data using devices called RFID tags. An RFID tag is an object that
can be attached to or incorporated into a product, pack or pallet in a warehouse
for the purpose of identification using radio waves. They may not ever com-
pletely replace barcodes, due in part to their higher cost, but with the advantage
of more than one independent data source on the same object the application of
RFID is likely to grow in supply chain management.
Transport planning
Transport planning is a key decision area of distribution management.
Transportation is a non-value-added item to the cost of the product and absorbs,
in general, the biggest share of the logistics cost. Students often argue that
unless a product is in the right place it is of little value and thus transportation
does add value. Not so! The concept of adding value relates to the transforma-
tion process, that is the conversion of inputs of raw materials, labour and
machinery into a finished product. Storage, inspection and transportation all
add cost but do not add value. Some of these costs will be unavoidable; mate-
rials have to be moved, goods have to be distributed, but storage, handling and
movement only add to the cost, and not to the value of the product.
The main factors in transport decisions are (see Figure 9.3):
There are various means of transportation such as railway, river, canal, coastal
shipping and pipelines for products such as oil. In some countries, for some
products, air transport might prove to be the most viable option. Generally how-
ever because of dependability, flexibility, speed and door-to-door service, road
134 Total Supply Chain Management
Supplier
T1
T3 Local D1
depot
Distribution
centre
D4 D2
Factory
D3
T2
T1/T2/T3 Trunk miles
D1/D2/D3/D4 Delivery miles
transport has proved to be the best option. For the UK, the Channel Tunnel has
added to the convenience of road transport to and from Europe.
There are significant opportunities in optimizing the selection of hauliers or type
of trucks. In order to take advantage of the competitiveness and the up-to-date
development of vehicles, companies are building partnerships with hauliers.
After the selection of the mode, the planning of trunking or primary transport
for single-drop repetitive journeys between known or well-known locations
(e.g. factory to warehouse), is relatively straightforward. However, the routing
and scheduling of delivery vehicles to customers is extremely variable and
therefore requires more systematic planning. There are computer-based proce-
dures to optimize delivery to customers. The objective is not to minimize the
total mileage but to maximize the utilization of vehicle time (delivery window)
and space (by volume or weight) and ensuring customer service.
Tesco – Dublin/Belfast/Livingston
Safeway – Bellshill
Asda – Grangemouth
Somerfield – Pitreavie
(Irish product would leave asap).
Tesco 11
Safeway 8
Somerfield 7
Asda 8
CWS 2
M&S 3
The service level agreements with retailers include that delivery should
be made within the limit of the delivery window. Any significant varia-
tion of delivery time is subject to penalty. There is no buffer stock, as
such a short shelf life of such a perishable product group does not allow
for it. There are also other challenges, such as forecasting the effect of
weather or promotions. The supply chain cannot afford any shortage
of refrigerated trucks of appropriate capacity when needed. Even we
Distribution management 137
achieve 100 per cent availability on all products it may count for nothing
if the absenteeism of drivers is out of control.
Exercise
1. What are the customer service and resource utilization objectives at
Evesham?
2. What are the demand planning and supply planning problems at
Evesham? Outline a strategy to deal with these problems.
Sample solution
The customer service objective at Evesham is to provide fresh food prod-
ucts on time in full to RDCs according to their delivery windows. The
most important criteria is timing. The compromise is for cost. However the
reefer supply is now moving from a specialist business to a commodity
business and thus the cost should be competitive. Thus cost is of medium
importance. The specification is also of medium importance. Students
may argue that as the customer expects all deliveries in right quantity in
controlled temperature the specification should be of high importance, but
the quality of product is the primary responsibility of the farmers.
The resource utilization objective is maximizing the utilization of
resources owned by the company – people (drivers) and facilities (own
vehicles). Facilities refer to those owned by the depot. The materials are
not owned by the depot and stock control is not an issue. As the products are
handled in controlled temperature the importance of materials is medium.
The capacity management strategy should be to provide an efficient
adjustment of capacity.
As output stocks are not feasible an efficient adjustment of reefer
vehicle capacity has been provided. The depot provided own and con-
tract vehicles (34 tractors and 53 trailers) to cover the average through-
put (e.g. 1100 pallets per day at 20 pallets per trailer, 55 trailers). In
addition 10 tractor/trailers from Ormskirk are available to adjust for
variation and seasonality.
Of the 94 staff nearly half of them are qualified drivers. Therefore,
some extra capacity of drivers are planned to cover for both variations
and absenteeism.
Because of the agreed delivery window the principle of ‘backward
scheduling’ is applied. A route scheduling optimization programme is
available to provide recommended schedules, based on which final
adjustments are made by the route planner.
In order to improve the exchange of information the company
has installed EDI (electronic data interchange) systems with some
supermarkets.
Strategic alliances
In order to achieve an integrated supply chain the various players need to work
together. The four most important types of distribution management strategic
alliances are third-party logistics (3PL), retailer–supplier partnerships (RSP),
distributor integration (DI) and customer relationships management (CRM).
100
95
Cumulative % of sales value
80
A B C
20 60 100
Cumulative % of customers
In this example the analysis has been further broken down so that it can be seen
that the top five customers account for 24 per cent of the sales, and overall just
3 per cent of the customers account for 80 per cent of the sales.
Another challenge of working with customers is to identify the true prof-
itability of all customers and then to improve the profitability of key customers.
Figure 9.5 illustrates that a ‘tail’ of unprofitable customers actually reduces the
total profit contributions.
Cumulative % of profit contribution
100
100
Cumulative % of customers
Summary
It is generally accepted that unless you are in the distribution business you
should seriously consider outsourcing your distribution to a third-party spe-
cialist. It is reasonable to expect that a specialist distribution company is likely
to provide more cost effective service for a supplier. However, cost effective is
not the same as service effective and it is arguable if a third-party company is
likely to full customer satisfaction. When a distribution company is delivering
goods on behalf of a group of suppliers it is fair to assume that the distributor
will not offer any extra service beyond what is specified in service level agree-
ments. Therefore, order fulfilment and customer relationship management will
be affected by outsourced distribution policy.
In this chapter we have described the fundamentals of distribution strategy,
warehouse operations, stock management, transport planning and CRM to
encourage a better understanding of distribution management. With this backdrop
a manager hopefully will be better equipped to manage their own distribution
operations or monitor the distribution activities of third-party distributors. The
knowledge of distribution management principles as a building block of total
supply chain management also highlights its key role in delivering goods and
services to the customer.
Part 2: Building Blocks of
Supply Chain
Exercises
Forecasting
1. A popular product at Beaconsfield Garden Centre is orchid plants imported
from South East Asia. These plants are nurtured in temperature and humid-
ity controlled green houses. The monthly sales figures of orchid plants for
2006 are shown in the following table:
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80 70 90 100 115 100 120 110 70 80 60 130
(a) Forecast the monthly demand for January, February and March 2007 by
using simple exponential smoothing with α 0.1.
(b) Evaluate the mean absolute deviation (MAD).
2. A call centre in Bangalore recorded the incoming overseas calls as shown
in the following table. This data is to be used for forecasting the staff and
investment in facilities.
Year 1998 1999 2000 2001 2002 2003 2004 2005 2006
Call minutes 35 39 44 49 56 63 73 84 96
(millions)
(a) Plot the data on a scatter diagram and develop a linear regression that
best fits these data.
(b) Is the linear regression a good forecasting tool for the call centre? How
do you justify your response?
(c) What is forecast of overseas calls in 2010?
3. The sales figures of the first 12 weeks of 2006 at Domino Pizza shop are
shown below:
Inventory management
1. The total annual demand of an item is 2000, the ordering cost is €20 and the
stock holding cost per unit per year amounts to 10 per cent of its purchase
cost. The cost per unit of an item is €80.
Find the economic order quantity (EOQ) by using the formulae:
EOQ (2Dc1/c2)
where D is the annual demand, c1 is the ordering cost per lot and c2 is the stock-
holding cost per unit per year.
3. Ford Motor Company has an engine plant in England and a car assembly
plant in Germany. The assembly plant delivers 1500 completed cars to dis-
tributors every year. Engines are transported by trucks to Germany. The
transport and shipping cost for each truck is £1000. The ex-works cost
of each engine is £1500 and the stockholding cost for engines in England is
20 per cent per year.
Calculate by using EOQ formula how many engines should be transported
by trucks in each trip?
4. A sports shop in Rio de Janiro sells football T-shirts to tourists at the rate of
2000 shirts per year. The ordering cost is £20 (GBP) and the holding cost
per unit per year amounts to 50 per cent of its purchase cost. The purchase
cost per unit of the T-shirt depends on the total quantity ordered as follows:
Less than 500 500–999 1000 or more
1.21 1.00 0.81
(a) Find the economic lot size.
(b) Calculate the optimum value of cost per year.
Distribution management 145
(a) Determine the safety stock of Nokia handsets that the store
should carry.
(b) What should be the re-order point?
Weeks
1 2 3 4 5 6 7 8
Sales 30 25 20 20 20 20 25 30
forecast
Customer orders 10 5 – – – 5
Distribution demand –
Promotion
Total
146 Total Supply Chain Management
Weeks
1 2 3 4 5 6 7 8
Forecast
demand
Actual
demand
On hand Projected
50 available 20
Available to
promise
Order MPS at
quantity receipt
70
Warehousing
1. The Central Warehouse of a large supermarket has an annual demand
of 32,000 tonnes and an average stock cover target of 8 weeks. During the
holiday months of July and August the weekly demand becomes 30 per cent
more than the average.
Given that the average load per pallet is 500 kg and desired utilization of pallets
is 85 per cent calculate the required pallets required for the peak months.
Clearly state the assumptions made.
Questions
1. What is required from forecasting in the following cases:
(a) Stock holding for a manufacturer of FMCG (fast-moving consumer goods).
(b) A make to order just-in-time product supplier.
(c) A mail order firm.
2. Which method of demand planning would you recommend and why for
products with a low market share and which also have seasonality of demand:
(a) A computerized demand planning software with appropriate formulae
to smooth forecast.
(b) A process of demand forecast regularly reviewed by Marketing, Sales,
Manufacturing and Logistics.
3. What is aggregate planning? Explain the type of industry or product where
aggregate planning would be most appropriate. How would you apply
aggregate planning in a business with high demand uncertainties?
Distribution management 147
4. What are the basic capacity planning strategies? Describe with examples
and a diagram (e.g. ‘decision tree’) the use of each of these strategies.
5. What are the key steps of a purchasing process in a supply chain? Explain the
appropriate authorization level for procuring stocked and non-stocked items.
6. Explain with examples the outsourcing strategy of an automobile manufacture.
What types of suppliers would be appropriate for supplier partnerships and
for SLAs (service level agreements)?
7. Describe the principles of ROL/ROQ and ‘Fixed Interval’ inventory manage-
ment systems. Show the circumstances required for each of these systems.
8. What are the common and distinctive features between a typical manufac-
turing and service operation? Explain how you may apply selected manu-
facturing tools and processes to a service industry.
9. Should all operations be managed in the same way? Explain the ‘five V’s’
of processes and discuss there implication in managing operations.
10. It appears to be a popular practice to outsource warehousing and distribu-
tion operation. Discuss the implication of outsourcing on customer service
and for competitive advantage.
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Part 3
New Demands
and Trends
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10
Service industries, event
operations and non-profit
organizations
Introduction
This chapter considers the special supply chain requirements for:
• Service industries
• Event management
• Non-profit (humanitarian) organizations
All of these operations require materials just as do any other organization, but
their needs and way of working merit special consideration. In service industries
the output is intangible and performance will largely be measured in qualitative
terms, for example value of advice, friendly empathetic service. Each service
delivery will be to some extent unique. With service industries demand is often
erratic and the duration of each interaction can vary. For example, a doctor in a
general practice might schedule 10 minutes per consultation, but by the end of
the day patients will be waiting up to an hour for their appointment due to the
doctor needing longer time than planned with some patients and the late arrival
of others. In events operations each event can be planned and resources sched-
uled in advance with some degree of certainty. Each event is unique. If an event
consists of more than one performance, each performance no matter how skilled
the participants, will be unique and once the event is over can it never be exactly
repeated and in many cases not at all. For example, if the television and video
recording equipment fails during a cup final (be it cricket, football, rugby or
darts) there is no chance of a repeat. The actual performance of the actors in an
event can sometimes be measured, for example 15 young Chinese women break-
ing the world record for the number of people on a bicycle, but for many events
performance measurement is subjective, for example can Kiri Te Kanawa still hit
the high notes? In non-profit operations such as relief for flood or earthquake vic-
tims, although organizations exist and contingency plans might exist, when and
where the disaster will occur cannot be known. The performance of the relief
organization will be hard to judge, although some lives might have been saved
more could have been done, and how much of the money donated is spent on
administration or wasted and what percentage actually gets to the victims?
152 Total Supply Chain Management
All of the above types of operations have several things in common; each
occurrence will be unique and performance to a large extent will be judged in
qualitative terms and judgement can well be uninformed and emotional. In a
pure supply or manufacturing operation performance can be measured in quan-
titative terms; for example, how many delivered, specification met, delivery
on time and cost. This chapter considers the special requirements of service,
event, and non-profit organizations and shows how application of supply chain
management principles will improve efficiency and effectiveness.
Service operations
In the UK 78 per cent of the work force are engaged in service industries (see
www.Statistics.gov.uk.) and according to the US Bureau of the Census in the
USA 80 per cent of the work force is engaged in service industries or work for
the government (see www.census/gov).
In Chapter 8, we distinguished service and transport from manufacturing
and supply operations with the use of system structures. We repeated Wright
and Race (2004, p. 4) who say that ‘A service organization exists to interact with
customers and to satisfy customers’ service requirements. For any service to be
provided there has to be a customer’. Without the input of the customer the
service cannot be provided. From the clients point of view, where in some service
industries such as law and accounting time charged is calculated on 6-minute
blocks (10 units per hour), the cost of the service is not cheap. Customers are
becoming price conscious and thus service industries across the board are
under pressure to reduce costs and at the same time to provide a accurate and
fast service.
Before the service provider can provide a service they will need a supply of
resources. The acquisition of tangible resources such as office space, computer/
information system, electricity and water, stationery, forms and brochures, etc.
are generally not a big issue and any problems associated with acquisition of
these basic and direct requirements will be the same for any type of organiza-
tion and need not be discussed further. Service industries rely on the intellec-
tual capital of their people. Wages will be the biggest direct cost. Service
industries in turn will require services. A big area and often neglected for sav-
ings for service industries is in the purchase of indirect goods and services.
Where a service organization has several offices, some distance from each
other, spending escalates, and suppliers of services to the offices become pas-
sive and complacent. For the remote office it seems to be cumbersome to be
continually applying for approval for routine purchases, and generally it will
not be obvious as to who is responsible for what. Further when mergers and
take overs occur there is a reluctance to impose rules and regulations from the
‘head’ office for day to day expenses and there will be little commonality in
how expenses are controlled at each remote office.
Costs can be reduced. There is no reason why service industries and clients
of service industries cannot adopt supply chain management and supplier
Service industries, event operations and non-profit organizations 153
relationship management to reduce costs. One of the big savings can be made
by formalising service purchasing.
1. They think they have better expertise than the purchasing department, know
what they want, and cannot be bothered with following procedures and
form filling.
2. They have a personal relationship with the supplier, and prefer to commu-
nicate direct rather than through an intermediary.
The dangers of allowing staff, no matter how well intentioned and honest they
may be, to do their own thing is obvious. A study by Denali Consulting found
that when cost savings are pursued, savings on services ranged from 10 to 29
per cent compared to an average of 5–17 per cent for other commodities or
materials (Stratford and Tiura, 2003).
Once an organization realizes the amount actually spent on services the next
step is to determine:
The objective being to determine ‘How’. ‘How’ being to agree the most effi-
cient and effective system. It goes without saying that the new system has to be
154 Total Supply Chain Management
Outsourcing
Purchasing departments if not accustomed to buying services almost certainly
will need to develop new skills. A study by CAPS (2003) found that 75 per cent
of the respondents (from purchasing departments) found it was more difficult
to manage (and buy) services than to buy/manage goods. If an organization
does not have the right purchasing staff, outsourcing of specialist purchasing
should be considered.
It is becoming increasingly cost effective for organizations to outsource
service provision. For example, in 1999 Harley-Davidson outsourced its entire
indirect spend to three suppliers, who either provide the service required or
who in turn arrange services from other suppliers. The savings in 2000
amounted to a reported $US 4 million.
Service providers can be grouped under the following headings:
Event management
The events industry includes festivals, meetings, conferences, exhibitions, ports
and a range of other events. With the growth of government regulation and cor-
porate involvement in events including sponsorship, the event environment has
become increasingly complex. Event managers are required to understand the
needs of their direct customer and of the final customers and to satisfy a number
of stakeholders. The number of suppliers including performers can be complex.
And in some cases the event manager will have no direct control, but will be
held responsible if things go wrong.
156 Total Supply Chain Management
The following section is derived, with amendments from Tum et al. (2005).
Resources and specializations used for each event are diverse, and can be
sourced from many different suppliers. Some of the resources may be under
the events manager’s direct control, and others may be subcontracted or out-
sourced to agreed specialists – for example, lighting and sound contractors,
caterers, musicians and pyrotechnic companies.
The event supply chain can be shown as Figure 10.1.
Supplier
Supplier
Figure 10.1 Event supply chain.
Managing this chain will normally involve dealing directly with purchasing
and supply and inventory management. The feedback that flows backwards is
essential because it allows the event manager to see how well received the
products, supplies and services were, and whether there should be any changes
in the future.
The flow of resources should be managed from its very origins right up to the
point where the customer experiences the event. For example, the event manager
needs to know the health and safety procedures for a visiting Chinese circus
company including a firework display to coincide with the Chinese New Year at
a local football ground booked though an agent. Although the agent will have
covered many of the details, the event manager will still need to be assured about
the suitability of the performance, how it will match the needs of the audience,
and how it can be coordinated with all the other activities into a whole event.
For an event there can be many different supply chains through which the
varied resources flow. They all have to be managed and coordinated into one
event, which is delivered at the moment it is experienced.
Supply chain management is a holistic approach that stretches forward across
the event manager’s own organization to the client and customers (see Figure 10.1),
and backwards through the many different suppliers and to their suppliers. By
having this holistic approach and integration across company boundaries there
can be substantial benefits for all stakeholders. It should be viewed as a chain,
and any break in that chain will have an adverse affect on the client. The aim is
to develop an integrated supply chain to achieve those critical success factors
judged by the customers, required by the client and other stakeholders including
local regulatory authorities. Unlike most other industries, the project that the
event manager is responsible for cannot fail. It must happen on time, and there
is no chance of a repeat. For example a one night concert cannot be repeated if
the hall has been double booked. If on the night, 10 minutes after the start the
lighting system or sound system fails for a rock concert the event manager will
not be able to arrange another supplier.
Service industries, event operations and non-profit organizations 157
in events management many brief relationships will be made and there will not
be time to develop loyalty, trust, and understanding of each other’s needs. In real-
ity, depending upon the type of event, a combination of the two polices would
be used.
For example, if you produced classical concerts nationwide you could use a
UK wide sound and lighting company that produces bespoke requirements for
each event, including design and set-building, but you would most likely use a
local caterer and security company. Silver (2004) recommends that all projects
or purchases should be put out to three bids every time to ensure competitive
pricing. On the other hand, Tum et al. argues that a company that is assured of
continued business with an organization will provide competitive prices. It avoids
quotation and administrative costs, and will know which staff and resources are
necessary for the provision of the service. This close relationship might be
jeopardized if frequent competitive tendering is undertaken. However, compla-
cency within this special relationship must not be allowed to propagate and
lead to decreased customer satisfaction or over pricing.
Some event companies prefer to complete everything in-house – both
important and non-important activities. This style of company is known as
being vertically integrated that is, it creates and supplies all the necessary
resources and services from within its own resources. An example of a verti-
cally integrated company is a circus owner who owns the circus animals; has
the artists on payroll; owns the big top, other tents, caravans and transporters;
employs his own costume makers, scene designers and constructors; has a supply
of memorabilia for sale; runs a refreshment booth; and does his own promo-
tion. At the other end of the scale some event companies do nothing in-house
and buy in all of their requirements. This style of company is referred to as being
virtual. An example of a virtual company is a promoter who arranges the tour of
an overseas ballet troupe, hires the theatres, arranges accommodation for the
artists, hires the orchestra, etc., and uses an advertising agency for promotion. In
essence, the promoter owns nothing and works from a rented office. However,
the event manager in this case cannot subcontract the risk or the responsibility!
lighting or catering company which, instead of always waiting for an event com-
pany coming to them to ask for a quotation to supply certain goods and services
for an event, proactively seeks out customers and puts on the event itself.
As covered in Chapter 12 the Internet and e-mail provides quicker response
and quicker access to information. The Internet also opens up a greater choice
of providers.
The integrated flow of materials and services through and from the operation is
a prerequisite for achieving high-quality, rapid and low-cost provision for clients.
Therefore, managing the supply chain is a major concern and of major importance
for event organizations, where a high proportion of their products and services
often come from different suppliers or different parts of the organization.
In delivering this well-managed supply chain, the aim of the event company
should be to diminish obstacles between functions and departments within the
organization, minimize activities undertaken, and improve the links between
the departments so that there is no unnecessary repetition. External to the
organization, the event manager should look to improve communication and
relationships with suppliers.
O’Toole and Mikolaitis (2002) see the contract as central to the correct proce-
dure for project planning and implementation. Much is written about contracts in
engineering, building and software industries, and event manager can take
advantage of lessons learned from successes and failures in these other industries
in their use of project management. Each contract specifies who will do what,
when and how. It can contain many details, or be simple letter of agreement or a
purchase order.
5. When the quotations are returned, it is important that they are examined
fairly and checked to see that what is being offered is as per specification.
6. The price and quality and reliability may be compared against in-house pro-
vision where that is possible. If you buy on price alone, you will get what
you pay for. Cheap can be expensive!!
7. When the event manager is satisfied that the goods and services are as required
in all respects, including competitive price and appropriate provision, then
an agreement can be made with the supplier. This may be called a purchase
order, but in reality what happens is that a contractual relationship is formed
between the event manager and the supplier. A contract is said to exist when
something is offered and accepted in writing or verbally with witnesses. Its
purpose and provisions must be legal, and the different parties should be capa-
ble of entering into the agreement. The standard contract elements, according
to Catherwood and Van Kirk (1992), are:
This involves recording details of each time we work with a customer, and
developing a picture from this information of what the customer liked and did
not like in our past dealings. Although software exists to capture these data,
for smaller operations such information can easily be recorded as notes on the
customer’s file.
1. Have fewer regular meetings with key suppliers, do not easily engage in col-
laborative product development, have little direct information technology (IT)
interface and seldom have a designated body responsible for co-ordination.
2. Have less trust in their supply partners, but ironically were less likely to
monitor the performance of their suppliers. Where there is some distrust the
implication is that the suppliers should be checked. He also quoted Kupila
(2003) who believes that suppliers to the humanitarian agencies were less
approachable and proactive. Kupila also observed that donors to charities
do not fully trust front line agencies.
3. Have less control over their logistics network, with inbound and outbound
logistics comparatively less efficient. Oliver found that the humanitarian
organizations have less power within the supply chain. He contends that
co-operation in a supply chain can be achieved through power or by a
strong drive to meet common goals, and that generally both these factors were
missing. He also found that single sourcing was not prevalent and in his
opinion and from our experience single sourcing leads to tighter control and
a better understanding of common goals. Oliver found that weakness in
power and control leads to deficiencies in management of incoming goods
and services and insufficient cost information and control.
4. Supply chain professionals in the humanitarian organizations are underval-
ued and are less likely to be encouraged to develop and to be involved in
key decisions.
5. Charities do not use IT effectively in the supply chain. This hampers perform-
ance in knowledge sharing, demand planning, collaboration and performance
monitoring. End to end costs are not always clearly known.
6. Performance is not well assessed and therefore continuous improvement
suffers.
162 Total Supply Chain Management
Summary
The economies of most advanced countries are heavily dependent on service
industries and today’s progressive business leaders are dramatically reshaping
Service industries, event operations and non-profit organizations 163
their enterprises extending their reach through partners, resellers and e-commerce.
This chapter has looked at the special circumstances that face managers of
service industries, events and non-profit humanitarian organizations.
In service industries it is found that service spend is less controlled than for
direct goods and materials and that in service industries the expenditure on
services is a comparatively large and generally not well-controlled expense.
The same applies to all other types of organization, the spend on services is not
treated as seriously as is the expenditure on goods and materials. Centralizing
all purchasing of services under the control of the purchasing department is
one approach. The other is to outsource the purchasing of specialist services.
The example given was Harley-Davidson who saved $US 4 million per annum
by subcontracting service spend to three suppliers.
With events management it was shown that seldom there is a second chance.
Once an event has been staged it cannot be recaptured. Thus, events managers
have to get it right first time. The various methods of supply chain management
practiced by events managers were considered including subcontracting.
Although each event is unique, a nine-stage purchasing chain of decisions was
provided as a checklist to enable the event manager to get it right first time and
to benefit from past experience.
For non-profit humanitarian organizations it was found that greater adoption
of supply chain management principles will improve performance. A major
issue being the need to have agreements with suppliers and procedures for
communication in place before any disaster occurs. Unlike event management
the timing of a natural disaster cannot be known, but as shown in the Wal-Mart
case study it is possible to have resources in place and on standby to meet
emergencies when they occur.
11
Supply chain in emerging
markets
Introduction
‘The Empire strikes back: India forges new steel alliance. It is a dramatic illus-
tration of the shift in the balance of power from West to East: a £5 billion bid
for Corus, formerly British Steel, by Tata, an industrial conglomerate that has
aspirations to turn itself into an Asian version of America’s General Electric’,
writes The Observer, the Sunday paper in the UK, on 22 October 2006. Founded
by Jamsedji Tata in the 1860s, initially with a textile mill in Bombay (Mumbai),
is today India’s largest company with a controlling interest in 96 companies.
In 2000 the Tata group became the first Indian company to gain a major
international brand when it acquired the UK company Tetley Tea. Tata is one
of the world’s lowest cost producers of steel; Tata Chemicals is one of the
Asia’s largest manufacturers of soda ash; Titan is one of the world’s top six
manufacturers–brands in the watch sector and Tata Motors is among the top six
commercial vehicle manufacturer in the world. Besides being the largest software
services provider in India it is also India’s largest international long distance
telecom and Internet services provider.
Tata is not the only organization from the emerging market that is making
the world sit-up and notice. Khanna and Palepu (2006) cites a list of companies
from emerging economies who are competing in the global market, for instance,
Brazil’s AmBev (which in 2004 merged with Belgium’s Interbrew to form
InBev); Chile’s S.A.C.I. Falabella; China’s Baosteel, Galanz , Haier and Lenovo
groups and Huawei Technologies; India’s Dr Reddy’s Laboratories, Infosys,
NIIT, Ranbaxy, Satyam, Mahindra and Mahindra and Wipro; Israel’s Teva
Pharmaceuticals; Mexico’s Cemex; the Philippines’ Jollibee Foods and Ayala
groups; Turkey’s Koc and Dogus groups; and South Africa’s SAB Miller.
The multinationals from North America, Western Europe, Japan and Korea
appear to have near-unbeatable advantages over companies from emerging
economies, such as well established brand names, large R&D infrastructure,
proven management systems, advanced technologies and access to a vast fund of
both financial and intellectual capital. However after a closer analysis it is evident
that the newly industrialized countries can benefit from the experience of advanced
economies and adapt the best practices to their local advantage. Historically Japan
Supply chain in emerging markets 165
and later Korea did just this in the 20th century. It is like the saying, ‘an early bird
catches the worm but the second mouse gets the cheese’. Furthermore the compa-
nies in emerging markets can count on their supply chain partners to make and
deliver products more inexpensively and can work better around the local bureau-
cratic processes. We shall analyse these factors in this chapter.
China is the fastest growing market in the planet. Since the start of liberal-
ization in 1979, the countries GDP is growing at 9.3 per cent annually – three
times faster than United States. With a combined population of 2.5 billion,
China and India have the most consumers in the world. Besides China and
India, over the past two decades waves of liberalization have swept aside pro-
tectionist barriers in developing countries in other regions such as Latin
America (Mexico, Brazil, Chile and Argentina), South East Asia (Malaysia,
Thailand, the Philippines and Indonesia) and Eastern Europe (Poland, Czech
Republic and Hungary) and Africa/Middle East (Turkey, Israel, South Africa
and Egypt). As these nations adapted themselves and interface with the global
economy, multinational corporations from the advanced economies of North
America, Western Europe, Australasia, North Korea and Singapore expanded
their outsourcing and supply chain network. In this chapter we focus especially
on three regions of emerging markets:
engineering, yet in the realm of health and primary education and other human
development indicators India’s performance has been far from satisfactory,
showing a wide range of regional inequalities with urban areas getting most of
the benefits. Although Indian Railway network employs a vast army of
employees with moderate effectiveness the infrastructure of road network and
port handling facilities have a long way to go.
In spite of the above challenges, the economic growth in India in the early 21st
century has been remarkable. The growth in Indian industrial sector in 2004–2005
remained healthy. The index of industrial production (IIP) continues to grow at the
rate of 7 per cent. The major element of the buoyancy in the industrial growth was
the manufacturing sector with 80 per cent of IIP. Service sector accounts more than
half of India’s Gross Domestic Products. The growth rate of India’s service exports
in 2005 was 8 per cent with regards to 5 per cent worldwide. Reason for high
growth rate in service sector in India is liberalization in regulatory framework and
high demand for low cost IT, BPO (business process outsourcing) and call centre
services. India’s IT Market reached a turn over of US $16.2 billion in 2004–2005.
The IT sector employs 697,000 people and this is likely to reach 2 million by 2014.
The BPO and call centre sector has been growing at 60–70 per cent annually and
its turnover in 2004–2005 reached US $5.8 billion.
In congruence with the diverse infrastructure, level of technology and eco-
nomic development the supply chain and logistics models in India are also
diverse. For example, the auto industry follows a traditional model of the West
and Japan for a predominantly urban and affluent market. At the other end of
the scale fresh foods supply are limited to the regional markets. Manufacturers
of fast-moving consumer goods, such as Hindustan Lever, deploys a hybrid of
urban and rural logistics by empowering the regional wholesalers for stocking,
distributing branded products to rural customers. Multinational retailers, such
McDonald’s restaurant chain, are gradually applying the available local infra-
structure to the best of their advantage. The following case examples illustrate
the application of appropriate supply chain models in India.
Fisherman 25%
Commission Agent 15%
Supplier 20%
Exporter 40%
The idea was for the women to not only act as salespeople, but also as ver-
itable brand promoters, often physically demonstrating products, such as
shampoo, by offering hair washes at religious festivals, at the local village
markets (haat) or by performing hand washing experiments.
A pilot initiative was set up in the Nalgonda district of Andhra Pradesh
in November 2000, with 50 SHGs in 50 villages and the participation of
1000 to 2000 inhabitants. Once fine-tuned, the model would be scaled
upward to cover more than 150,000 villages in India. This HLL-SHG
business partnership initiative was called ‘Project Shakti’, meaning
‘strength’ or ‘power’. By the beginning of 2002, the project team had
already reached the entire Nalgonda District and exceeded 400 villages
with no signs of this momentum slowing down (refer to Figure 11.1 for
an illustration of HLL’s rural distribution model).
HLL factories
Regional distribution
centres (RDCs)
Britain. In 2006, China’s official GDP growth rate has surged to 10 per cent.
Even this may underestimate the true rate, which some economists reckon was
as high as 13 per cent. In 2003 alone, ‘it consumed 40 per cent of the world’s
output of cement. It also accounted for one-third of the growth in global oil
consumption, 90 per cent of the growth in world steel demand, and more than
the whole of the increase in copper demand’ according to the Economist, 13
May 2004. It is predicted (Lieberthal et al, 2003) that for the next 10 years, and
probably considerably longer, multinationals should be the biggest winners as
China’s economy becomes increasingly open.
In addition to its phenomenal economic growth China offers a powerful com-
bination to sustain this growth including a disciplined, low cost labour force, a
large pool of technical personnel (e.g. China graduated over 2 million engineers
and technicians in 2004), tax incentives to attract investment and infrastructure
sufficient to support efficient manufacturing operations and exports. Like its
export base, China’s home market is also growing spectacularly. For example,
6 million mobile phone subscribers are signing up every month. Comparable
growth is also seen in the use of computers, motor cars and retail stores.
China also has major challenges. The coal-fired power stations and emis-
sions from cars and from industrial and domestic facilities are causes of serious
concern for the environment of the planet. A lack of management expertise
plus a culture of a centralized economy is also a major constraint on the com-
petitiveness of Chinese companies. However, after two decades of joint ven-
tures and management training Chinese managers are developing skills in
critical multi-functional management tasks. Nonetheless in 2003 during the
outbreak of SARS (Severe Acute Respiratory Syndrome) despite extensive
investment in genomics Chinese research institutes waited for specific orders
from higher government levels before turning to SARS research and this iner-
tia due to centralized control and beaurocracy is still a concern. China’s trans-
portation, distribution and retail infrastructures are still being developed, and it
is expensive to supply goods nationwide. Furthermore, provincial governments
impose taxes on goods that are not manufactured in the region. Zeng and
Williamson (2007) commenting on the backdrop described above of economic
growth and local strengths and weaknesses, accordingly identified four groups
of Chinese companies tackling the global markets. China’s ‘national champions’
(such as Haier Group, Huawei Technologies, Legend Group and Wanxiang
Group) are using their advantages as domestic leaders to build global brands
(see Haier Group case example). The second group is the country’s dedicated
exporters (such as Galanz, China International Marine Containers and BYD
Battery) who are entering the export markets on the strength of large
economies of scale. Another group, ‘competitive networks’ (such as Wenzhou,
Chenghai & Shenzhen and Schenzen) is expanding by bringing together small,
specialized companies that operate closely in provinces. And finally, ‘technology
upstarts’ (such as Dangdang.com, Innova Superconductor and Datang
Microelectronics) are using innovations developed by China’s government owned
research institutes to enter emerging sectors of new technology (see Dangdang
case example).
Supply chain in emerging markets 173
Within 1 year of its launch in 2000, Dangdang was ranked first among
China’s five major online bookstores by a significant margin in a survey
conducted by the local industry publication, Computer Business Infor-
mation. The most popular books on Dangdang.com are on computers,
English language learning, science and tourism.
In April 2000, Softbank China Venture Capital (SCVC) and IDG
invested $22 million in Dangdang. This was to be used to strengthen
Dangdang’s logistics. Dangdang planned to build a 10,000 square metres
storage facility in Beijing and expand its delivery system to 40 major cities
in China. It also had plans of getting listed on the US Nasdaq stock market,
by the end of 2000. But following the crash in tech stocks, it postponed its
plans indefinitely. Subsequently, in 2006, Dangdang was able to attract sub-
stantial venture finance from the USA to fund the development needed.
Prior to the launch of Dangdang, online bookstores such as bookmall.
com, cp1897.com, 8848.net were already operational. The success of
Dangdang inspired the opening of a few more online bookstores. While
Dangdang was considered the most competitive in terms of price and
variety of products; Joyo.com (joyo) offered more popular products; bol.
com (bolchina) had the biggest advertising budget and store. sohu.com
(store.sohu) had a good brand name and heavy traffic.
In October 2002, Joyo, Bolchina, Dangdang and Store.sohu were
engaged in a price war. All these websites sold books and audio–video
products online. The list price of the Chinese version of The Lord of the
Rings trilogy was CNY 62.6 per set whereas the websites were selling it
at 40 per cent below list price for CNY 45. Similarly, another bestseller,
Harry Potter was also sold on websites at heavy discounts. These players
were mainly aiming for market share and were willing to sacrifice profits
to acquire this.
Source: www.chinatechnews.com (April 2007)
The potential of setting up joint ventures and expanding businesses for multi-
nationals is tremendous. However, the risk of operating a supply chain needs to
be analyzed in a hard-nosed way. These risks could include the politics of the
World Trade Organization, implementation, oversupply and possible deflation,
the structure of political power and political stability, and currency exchange
fluctuations. Lieberthal and Lieberthal (2003) recommend a five-stage strategy
for Western multinationals to consider business expansions in China:
• Focus attention on properly nesting your China strategy into the organiza-
tion as a whole.
• Tailor strategies to both national and local governments and markets.
• Adopt a ‘show me’ attitude toward the purported advantages of forming a joint
venture.
Supply chain in emerging markets 175
• Recognize and take steps to minimize the particular risk of operating in the
Chinese environment.
• Avoid irrational exuberance in responding to the opportunities that China
presents.
Bolivia and Colombia is encouraging population over spilling into urban slums
around mega cities such as Mexico, Sao Paulo, Rio de Janiro, Buenos Aires
and Bogota. The current favorable economic environment in North America
and generally in the world provides an excellent backdrop against which action
can be taken to ease these vulnerabilities.
Many Latin American companies have become world class businesses by
capitalizing their link with multinational companies like Proctor and Gamble,
Unilever and global car and drugs manufacturers. Multinationals also utilized
both people skills and markets of Latin American countries to consolidate their
global earnings, systems and business practices. In this regard local companies
in China and India have been more successful in blunting the multinationals’
edge. However there are limited examples of a local company (such as AmBev
and Bunge in Brazil and Cemex in Mexico) which have judiciously adapted to
the special characteristics of local customers, suppliers and infrastructure. The
following three case examples illustrate some of the developments of supply
chain management in Latin America.
• Sole source
• Manufacturer of a strategic material
• Manufacturer of a material to Bristol-Myers Squibb’s specifications
• Referenced in a New Drug Application submitted to the US Food and
Drug Administration
Summary
In this chapter we have discussed the shift of product and services supply in the
global market due to emergence of stronger so called, second and third world
economies. The supply strategy of established multinationals of the West and
Japan and Korea has been remodelled by enhanced outsourcing to the emerg-
ing markets and at the same time big organizations particularly from China and
India have extended their supply base as a global player. The organizations in
Latin America and the Eastern Europe are less dominant in the global market
but their local economies and infrastructure are benefiting from the expansion
activities of multinationals.
Both the local organizations and multinationals are capitalizing and adapt-
ing to the specific opportunities and challenges of the emerging markets. These
include the availability of both low cost semi skilled and highly skilled labour,
expanding consumer demands especially in China and India, developing trans-
port and logistics infrastructure, the importance of execution and governance
according to local regulations and finally the market structures in developing
countries. Khanna and Palepu (2006) suggest that the ‘four tiered’ structure
(see Figure 11.2) of markets in emerging economies helps local companies
counter their multinational rivals.
At the apex of this pyramid structure is the ‘global’ tier where global cus-
tomers want products of global quality with global features and are willing to
pay global prices for them. The second tier is the ‘glocal’ segment where products
are of global quality but with local features and prices are cheaper than offered
180 Total Supply Chain Management
by developed countries. The customers in the third or ‘local’ tier are happy with
products of local quality and at local prices. The ‘bottom’ tier of the market con-
sists of consumers who can only afford to buy the most inexpensive products.
The markets for talents and capitals in developing countries are also roughly
structured along the same ‘four tier’ hierarchy. Multinationals typically compete
in the ‘global’ tier while smart local companies dominate the ‘local’ and ‘bottom’
tiers move into the ‘glocal’ tier. However some multinational corporations with a
robust local representation (e.g. Hindustan Lever in India) are also attempting to
compete in lower tiers.
12
e-Supply chain
Introduction
There is no doubt that supply chain order fulfilment is the Achilles heel of the
e-business economy. At the beginning of every e-commerce, on-line trading
and virtual supply chain there is a factory, a warehouse and a transport. Internet
has elevated the performance of information accessibility, currency transac-
tions and data accuracy, but the real effectiveness of supply chain from the
source to customer cannot be achieved without the efficient physical move-
ment of goods and materials through the supply chain. Web-based software
and e-market places have increased the alternatives available to e-supply chain
managers in all types of operations including service industries. More oppor-
tunities mean more options and complexity. Therefore, it is vital that a process
is in place to monitor the performance of e-supply chain for both virtual and
physical activities. A Balanced Scorecard approach of performance manage-
ment will ensure the sustainability of an e-business when it becomes a stable
operation after the project stage.
In order to facilitate communications between software used by internal
supply chain partners, multinational companies have tried very hard, but gen-
erally unsuccessfully, to standardize computer systems. The emergence of the
Internet protocol has helped the interaction between powerful supply chain
systems such as i2, Manugistics, Ariba, Oracle and SAP R/3 to name a few.
The rigour and problems related to the validation process still remain. In spite
of the complexity and regulatory requirements, or perhaps because of it, the
healthcare industry remains a huge untapped market for e-supply chain.
A recent study carried out in the USA by Efficient Healthcare Consumer
Response (EHCR) consortium showed that the healthcare industry could reduce
its overall supply chain costs by over US $11 billion (48 per cent of the current
process cost) through the efficient application of collaborative e-supply chains.
Peter Drucker once said, ‘Alliances are where the real growth is’. In the mar-
ket driven competitive world, businesses are continuously seeking new strat-
egies and business models to excel. They strive to update the process and
metrics used to measure and improve performance. The Internet is providing
companies both with new challenges and potential solutions. Arguably,
the biggest external factor that is revolutionizing business culture is the power
of the Internet. One such area of impact is collaborative supply chain.
182 Total Supply Chain Management
The idea of a collaborative economy is not entirely new. Over the past
decades strategic collaborations and global sourcing have become a familiar
business strategy. Even during the 1970s and 1980s multinational companies
were setting up manufacturing sites to meet local demand and regulatory
requirements. In terms of industrial relations it was considered a high-risk
strategy to focus sourcing from a small number of sites. However, with gradual
de-regulation and the improved manufacturing capabilities of the developing
markets, the strategy of global sourcing and third-party supply began to
advance forward. Perhaps the biggest transformation in collaborative economy
has been enabled by the Internet and information systems. The visibility of
real-time information, round the clock on-line trading and the gradual shift in
power from suppliers to customers have accelerated this transformation.
As indicated in Chapter 1, the Internet-enabled integrated supply chain or
e-supply chain has extended the linear flow of the supply chain to an Eco system
(see glossary) or a supply web (see Figure 1.4). It now includes all suppliers and
customers to the end user or consumers suppliers’ customers and customers’
suppliers and so on. e-Supply chains and more broadly e-businesses have
enhanced supply chain efficiency and effectiveness by sharing real-time infor-
mation regarding forecasts, inventory, order status and other key information
between partners. The process of e-supply chain is going through a rapid
change through both technology and application. We will cover some of these
opportunities and challenges under the following headings:
Intranets
Intranet is an Internet linked network inside an organization secured behind its
‘firewalls’. The Intranets helps to share documents between employees only,
with given password controlled access, regardless of their geographic loca-
tions. Most companies have Intranet-based websites for internal use.
Extranets
According to Smith (2001), Extranets combine the privacy and security of
Intranets with the global reach of the Internet, allowing access to external part-
ners, suppliers and customers to a controlled portion of the enterprise network,
such the ERP system.
B2B portals
With the advent of Internet it is easy for buyers and suppliers to meet, buy and
sell across cyber market places and collaborate more quickly than the trad-
itional way. These are also known as B2B and are classified under Net market
places and Private market places. Net market places are independently owned
portals that bring numerous suppliers and buyers to cyberspace in a real-time
environment. They could be either industry orientated vertical market places
(e.g. metalsite.com) or product or service orientated horizontal market places
(e.g. tradeout.com). A Private market place is a trading hub in which member-
ship is closed or by invitation or subscription only.
Collaborative
planning
Workflow
automation
Visibility
Company Hub
420 Suppliers 111 Factories 5 Trading Partners 139 Markets 32,000 SKUs
It is important the key suppliers and partners are included in the S&OP meet-
ings of the OEM.
Branch 1.07
Telephone 0.54
Automated teller machine 0.27
Internet 0.01
There is also the influence of big multinational companies who have imple-
mented e-business network with their suppliers and partners. According
to Donavan (2004), one CEO of a large US conglomerate is quoted as saying,
‘… all of our suppliers will supply us on Internet or they won’t do business
with us’. There is little doubt that heavy emphasis and investment of resources
have deployed by larger organizations to implement sophisticated e-supply
chain. Suppliers, regardless of size, should have got the clear message that the
e-supply chain has arrived and is here to stay.
However it is important to note that just throwing more software at the prob-
lem is not the answer to the core issues of SCM. Although software and web-
based network are need it is also very necessary to define the process
information flow at the right time and ensure accurate data into the systems.
Good supply chain practioners know that information should be passed on only
to those who need to know and use it in the form they need to have it.
The ambition and expectation of many so-called ‘dot.com’ companies ended in
failure in late 1990s mainly because of not spending enough time on up-front
strategy development. Basu and Wright (2004) expressed a cautionary note for
all types of change management. ‘Major, panic driven changes can destroy a
company. A poorly planned change is worse than no change’.
e-Supply chain 187
1. It is evident that e-supply chain strategy will be mostly driven and financed by
large multi-site and multi-national companies. Only partial benefits will be
achieved if the e-supply chain initiatives of larger companies focus solely for
their own operations and sites and do not include the key suppliers. Proactive
policy should be in place in larger organizations to involve and train key part-
ners in the development and implementation of an e-supply chain network.
2. Smaller organizations and suppliers should incorporate in their business
strategy how to keep abreast with ICT technologies affecting their supply
chains. It is important to co-operate fully with OEMs and larger customers
in their e-supply chain programmes. Often relatively smaller companies
may develop specialization and expertise in specific operations or out-
sourced services (e.g. IT support) and they contribute a key link to the
e-supply chain strategy.
3. Spending more time at the front end of e-strategy development for improving
order to delivery cycle and SCM will pay good dividends. The challenging
aspect is to think through an e-supply chain strategy, network and appropriate
infrastructure that will improve your performance ahead of your competitors.
It is essential to design an appropriate roadmap and do it right first time.
4. The e-supply chain network and infrastructure should emphasize workflow
automation and at the same time should accommodate some degree of flexi-
bility to interface with non-automated suppliers. This consideration of sys-
tem flexibility could be of particular importance for conducting business
with emerging markets such as China and India.
5. It is paramount that before embarking on an e-supply chain programme
companies understand their supply chain priorities and the structure of
Internet-enabled linkages with key suppliers and partners. The real benefits
of an e-supply chain and the cost of implementing and maintaining it must
be properly evaluated before taking a big leap into the e-supply chain.
6. It must be emphasized that the success of the systems in an e-supply chain
will depend on the robustness and lean or agile characteristics of basic
processes and the velocity of flow. Therefore, the re-engineering of the key
business processes in the supply chain before the implementation of sys-
tems should be an essential part of an e-supply chain strategy.
7. Having understood the fundamentals of e-supply chains it is also necessary
to understand the emerging trends in supply chains that will impact the nature
of future e-supply chains and consequently the e-supply chain strategy. Such
trends include customer centric supply chain (see Figure 12.3) and outsour-
cing of supply chain activities. The customer centric supply chain is basic-
ally a ‘pull system’ and is also branded as Demand Driven Supply Chain.
Companies such a FedEx, UPS, DHL and InSite offer professional logistics
and supply chain services customized to the user requirements. The trend of
outsourcing logistics to third-party service providers (known as 3PLs) is fast
188 Total Supply Chain Management
Current data
Income £10 million per annum
External orders 360 per annum
Number of lines 1090
Average value of order £350
Error rate 13.5%
Transaction fee (e-lab) 5% of order value
Assumptions
Loaded scientist cost £50,000 per annum
£25 per hour
Time to prepare and authorize an order 75 minutes
Time to order electronically 15 minutes
Document cost per order £5
Error rate in e-procurement 3.5%
Calculations
Average cost of a manual order 25 75/60 5 £36.25
Average cost of an electronic order 25 15/60 £6.25
Average saving per order £30
Saving in ordering cost per year 30 360 £10,800 per annum
Saving due to 10% reduction in error 0.1 360 36.25 £1305
per annum
Transaction charges at 5% 0.05 350 360 £6300
per annum
Net savings per year £5805 per annum
Business benefits
The Internet-based information sharing and collaborations system
(EQOS Collaborator) went live for Sainsbury’s in 1998 and so far has
demonstrated some significant business benefits.
A tangible advantage was achieved in the area of the forecasting of
promotional uplift. The real-time information in the system exposed the
fact that in some cases, suppliers had different expectations, but the data
e-Supply chain 193
• Five primary sites (four in the UK and one in Singapore) for the man-
ufacture of active ingredients.
• Ten FDA approved secondary manufacturing sites in the USA and
Europe.
• Two trading partners (Adecsa and Lapsa).
• Forty-one local supply and marketing sites.
At the early stage of the project the trading partners are linked by EDI
with the supply sites and most of GW sites were connected by e-mail.
The global demand was aggregated and processed at the centre and sim-
ulations by Manugistics projected the stock status and replenishment
requirements for all supply sites. With the progress of the programme
BPCS was replaced by SAP R/3 for FDA approved sites and the ERP
databases of local sites wire interfaced with the Manugistics database.
The Global S&OP process enabled regular review of demand, supply
and inventory, and a stable process was established. The importance of
internal market sites reaffirmed the B2B environment of the GW supply
chain network. The company embarked upon web-enabled data exchange
with key suppliers and smaller markets where the implementation of
Manugistics and SAP R/3 were still a long way from reality. The process
of e-supply chain started to work in GW and the company started the
measurement of key performance measures.
The initiative that underpinned the e-supply chain project was the
development of a Balanced Scorecard on a data warehouse management
system. The GW sites could access the data warehouse with appropriate
password control and compare the site performance with other sites for
range of metrics related to customers, suppliers, quality, factory, cost,
growth and innovation.
Source: Basu (2002)
Problem
The market for HS is not of growth. The company was facing fresh
logistical challenges with regard to order processing system. The new
opportunities in globalization and e-businesses made it necessary for the
company to re-engineer traditional supply chain strategy and structures.
Within the framework of the gobal production network a series of sub-
sidiary units came within the scope of the new structure. There were
already numerous internal customer–supplier relationships between
individual sites without taking into account the external suppliers and
customers. The complexity of an order event is characterized by the
multi-level nature of the value chain as shown in Table 12.2.
Solution
HS defined the concept of the ‘fractal company’ as the creation of com-
pany units on the basis of the holistic and seamless view of the organiza-
tion. The core point of the change was to link sales and distribution to the
production factories directly, without a production planning unit. The
formal production planning unit became a strategic production planning
responsible primarily for the definition of production sites and inter-
company scheduling. The change was enabled by an ERP (SAP R/3) to
form a holistic solution of e-supply chain as shown in Figure 12.4.
SOURCE
MAKE DELIVER
e-Procurement
e-Logistics
e-Production (track and trace
SELL (scheduling in with external
the network) logistics)
e-Commerce
PLAN
e-Business
(SAP R/3)
Results
The e-supply chain solution offered the company many intangible bene-
fits including the redesigning the business processes, better collabor-
ation and trust between stakeholders and satisfied customers. A sample
exercise two years after the start of the project also demonstrated some
quantifiable benefits including:
– Increase productivity 4%
– Delivery service within 24 hours up to 98%
– Reduction in lead time 40%
– Reduction in despatch complaints 60%
progress and use that old rule of ‘measurement is the driver’. Technology is
changing rapidly and we do not have any one-stop solution providers. It is
equally important to manage technology, processes, and people culture.
This must be borne in mind when developing models for measuring e-business
initiatives and processes.
• Weaker links: Relative late-comers to e-business have not ‘missed the bus’,
but they must take advantage of this powerful enabling technology. Smaller
companies may not be enthusiastic to join the e-supply chain of larger
organizations perceiving that the benefits of automation may accrue to
larger business partners and not to smaller companies. Appropriate tools for
measurement are needed to optimize this open opportunity and bigger play-
ers should be proactive in sharing the cost of implementation.
Growth in e-business
e-Commerce will be a growth area, with Gartner (2002) predicting that while
its pace will accelerate rapidly, it may be five to ten years before expectations
are realized. While the initial hype that B2C e-business will replace traditional
sales has been dispelled, it is true that e-business will enhance rather than
replace existing revenue generating activities. In the USA, this has been
achieved by product focused websites.
Summary
In this chapter we have described the impact of the Internet driven global infor-
mation and communication systems in enhancing the management of supply
198 Total Supply Chain Management
Introduction
With the real-time access to the Internet and search engines like Google and
with the increased global competition, customers have more power than ever
before. They demand innovative product features, greater speed, more product
variety, dependable performance and quality at a best in class and at a competi-
tive price. Furthermore, today’s discerning consumers expect fulfilment of
demand almost instantly. The risk attached to traditional forecast driven lengthy
supply line has become untenable for consumer products. In this chapter, we
discuss how to take up this challenge through a lean and/or agile supply chain.
As we discussed in Chapter 3 (see Figure 3.6), a distinction is often drawn
between the philosophy of leanness and agility. Like the perennial business
phrase ‘quality’ both ‘leanness’ and ‘agility’, there appears to be differing opin-
ions as to what is meant or intended.
In their ‘pure’ form three models of supply chain can be identified being
traditional, lean and agile.
in various chapters of this book, this chapter will primarily cover lean and agile
models.
The organization of this chapter is:
level, workers were not expected to think and there was a heavy reliance on
inspection and testing to maintain a standard of finished product. The next
major change in car manufacturing is credited to Ohno Taiichi of Toyota. Ohno
Taiichi, after visiting USA car manufacturers in the 1960s, returned to Japan
and developed a new method of manufacturing, which became known as lean
production.
The Lean Manufacturing, sometimes referred to as Toyotaism or Toyota
Production System, is that materials flow ‘like water’ from the supplier through
the production process onto the customer with little if any stock of raw materials
or components in warehouses, no buffer stocks of materials and part-finished
goods between stages of the manufacturing process, and no output stock of fin-
ished goods. This ‘just-in-time’ (JIT) approach requires that materials arrive
from dedicated suppliers on the factory floor at the right stage of production
just when required, and when the production process is completed it is shipped
directly to the customer. With no spare or safety stock in the system there is no
room for error. Scheduling of activities and resource has to be exact, commu-
nication with suppliers must be precise, suppliers have to be reliable and able
to perform to exacting timetables, materials have to arrive on time and meet the
specification, machines have to be maintained so that there is no down time,
operators cannot make mistakes, there is no allowance for scrap or rework and
finally the finished product has to be delivered on time to customers. This is
often implemented by circulating cards or Kanban between a workstation and
the downstream buffer. The workstation must have a card before it can start an
operation. It can pick raw materials out of its upstream (or input) buffer, per-
form the operation, attach the card to the finished part, and put it into the down-
stream (or output) buffer. The card is circulated back to the upstream to signal
the next upstream workstation to do next cycle. The number of cards circulat-
ing determines the total buffer size. Kanban control ensures that parts are made
only in response to a demand.
This ‘just-in-time’ approach generally precludes large batch production;
instead items are made in ‘batches’ of one. This means that operators have to
be flexible, the system has to be flexible and ‘single minute exchange of dies’
(SMED) becomes the norm. A lean approach reduces the number of super-
visors and quality inspectors. The operators are trained to know the production
standards required and are authorized to take corrective action, in short they
become their own inspectors/supervisors. The principles of TPM (Total
Productive Maintenance) and Five Ss (Sort, Set in place, Shine, Standardize
and Sustain) are followed and as a result the equipment becomes more reliable
and the operator develops ‘ownership’ towards the equipment.
Another important aspect of the Toyota approach was to expand the work
done at each stage of production. For example, a team of workers will be
responsible for a stage of production or ‘Work Cell’ on the moving assembly
line, such as installing the transmission, or installing the seats, etc. Each team
is responsible for it is part of the assembly and might be able to make minor
changes to procedures within the confines of a time limit (the time allowed on
the moving line for production to move from one stage to the next) and within
202 Total Supply Chain Management
the limits of the specified standards (for example, the team can change the
order of assembly at their workstation but would not have the authority to add
extra nuts, etc.). Quality standards are assured the application of Zero Quality
Control or Quality at Source before the actual production and Poka Yoke (mistake
proofing) during a production process.
A visitor to a Lean manufacturer will be struck by the lack of materials;
there is no warehouse, no stocks of materials between workstations, and no
stocks of finished goods. At first glance this suggests that Lean is an inventory
system. But Lean is not just an inventory system, Lean also means the elimination
of ‘muda’. Muda, is a Japanese word, which means waste, with waste being
defined as any human activity that absorbs resource but creates no value. Thus,
the philosophy of Lean is the elimination of non-value adding activities. The
rough rule is the elimination of any activity that does not add value to the final
product, and the taking of action so that the non-value activity never again
occurs.
Before anything can be eliminated it first has to be identified. The Toyota
approach to identifying areas of waste is to classify waste into seven ‘mudas’.
The seven ‘mudas’ are:
• Excess production
• Waiting
• Movement or transportation
• Unnecessary motion
• Non-essential process
• Inventory
• Defects
The approach is to identify waste, find the cause, eliminate the cause, make
improvements and standardize (until further improvements are found).
1. TPM
2. Five Ss: These represent a set of Japanese words for excellent house keeping
(Seiri – Sort, Seiton – Set in place, Seiso – Shine, Seiketso – Standardize and
Shitsuke – Sustain).
3. JIT
4. SMED
5. Jidoka or Zero Quality Control
6. Production Work Cells
7. Kanban
8. Poka Yoke
Lean and agile supply chain 203
The methodology of lean thinking and lean supply chain has moved on since
Toyota’s Lean Manufacturing model and embraced additional tools and
approaches. We have therefore included two more:
• Kanban: Kanban cards ensures that parts are only made in response
to demand – each workstation must have a card before it can start an
operation.
• Mistake proofing (Poka Yoke): A procedure that prevents defects or
malfunction during manufacture by, for example, eliminating choices
that lead to incorrect actions; stop a process if an error is made; prevent
machine damage.
Lean Sigma and FIT SIGMA: Lean Sigma incorporates the principals
of JIT and now relates to the supply chain from supplier and supplier’s
supplier, through the process to the customer and the customer’s cus-
tomer. FIT SIGMA incorporates all the advantages and tools of TQM
(total quality management), Six Sigma and Lean Sigma. The aim is to
get an organization healthy (fit) by using appropriate tools for the size
and nature of the business (fitness for purpose) and to sustain a level of
fitness.
1. Elimination of waste
2. Smooth operation flow
3. High level of efficiency
4. Quality assurance
Elimination of waste
The lean methodology as laid out by Womack, Jones and Roos (1990) is sharply
focussed on the identification and elimination of ‘mudas’ or waste and their
first two principles (i.e. value and value stream) are centred around the elimin-
ation of waste. Their motto has been, ‘banish waste and create wealth in your
organization’. It starts with value stream mapping to identify value and then
identify waste with process mapping of valued processes and then systematic-
ally eliminate them. This emphasis on waste elimination has probably made
lean synonymous to absence of waste. Waste reduction is often a good place to
start in the overall effort to create a lean supply chain because it can often be
done with little or no capital investment.
One popular area of waste in processes is excess inventory. Many organizations
started to measure their ‘leanness’ only in terms of inventory performance.
Inventory reduction attempts to reduce inventory through such practices as
enterprise resource planning (ERP), JIT and modern approaches to supply
chain management have led to lower inventory levels, but there is still plenty of
room for improvement. In fact, most all manufacturers carry at least 25 per cent
more inventory than they have to. The techniques of inventory management
and reduction have been covered in Chapter 7. This inventory centred approach
seems to be encouraged by Leanness Studies (Schonberger, 2003). In these
annual study reports, Schonberger measured the trends in inventory turnover
(annual cost of goods divided by value of inventory) and then graded and ranked
the companies according to inventory performance. This approach although is
a good indicator of inventory policy of a company, but it does not necessarily
reflect the business performance of the company. For example, the inventory
policy of a fast-moving consumer goods (FMCGs) company is different from
that of a pharmaceutical company. Inventory is only one of the seven ‘mudas’.
Cycle time or lead-time reduction is another target area of waste reduction.
Cycle time is the time required to complete a given process. The cycle time
required to process a customer order might start with the customer phone call
and end with the order being shipped. The overall process is made up of many
sub-processes such as order entry, assembly, inspection, packaging and ship-
ping. Cycle time reduction is identifying and implementing more efficient
ways of completing the operation. Reducing cycle time requires eliminating or
reducing non-value-added activity. Examples of non-value-added activity in
which cycle time can be reduced or eliminated include repair due to defects,
machine set-up, inspection, waiting for approval, test and schedule delays.
206 Total Supply Chain Management
There are a few formal and publicized methodologies for cycle time reduction
including QRM (Quick Response Manufacturing; Suri, 1998) and SMED
(Single Minute Exchange of Dies; Shingo, 1985). QRM is underpinned by two
key principles. First, plan to operate at 80 per cent or even 70 per cent capacity
of critical resources. Second, measure the reduction of lead times and make
this the main performance measure. These principles are supported by material
requirements planning (MRP) plans for production-oriented cells and continu-
ous training. The SMED method involves the reduction of production changeover
by extensive work study of the changeover process and identifying the ‘in
process’ and ‘out of process’ activities and then systematically improving the
planning, tooling and operations of the changeover process (see Figure 13.1).
Shingo believes in looking for simple solutions rather than relying on technol-
ogy. With due respect to the success of the SMED method, it is fair to point out
that the basic principles are fundamentally the application of classical indus-
trial engineering or work study.
Existing
Improved
Machine running
Total set-up time
External set-up
Internal set-up
SMED Single Minute Exchange of Die
The reduction of cycle time has become an important feature of lean think-
ing beyond manufacturing industries where approaches other than QRM and
SMED are applied. In service industries such as call centres there has extensive
application of value analysis around process mapping charts. Even flow pro-
duction technique (Ballard, 2001) is applied in reducing cycle time in the con-
struction of repetitive residential homes. The technique comprises: (1) overlap
activities within their phase of the work, (2) reduce activity durations through
Lean and agile supply chain 207
cycle time studies and (3) reduce work in process through the development of
multi-skilled workers. Cycle time reduction is also an important area of Lean
Sigma projects as illustrated by the following case example.
• To ask each approved supplier to prepare offer for year 2005 with
maximum regeneration time of 8 weeks.
• To find and develop new supplier for catalyst who can fulfil our
request.
Although the company developed four new suppliers for the platinum cata-
lyst, only two of them were reliable and another two could not achieve
required quality each time. Another problem was that the specification for
catalyst was quite general and earlier analysis could not properly represent
the regulated quality of the catalyst. Consequently, the development of
approved new suppliers took a long time. Minimum regeneration time
achieved in the past was 8 weeks and 6 days and because of all that the
team decided to ask each of qualified suppliers to regenerate catalyst
within 8 weeks and the team prepared negotiation strategy for that.
To test supplier’s ability to fulfil new requirement, the company asked
each of the supplier to deliver next shipments of regenerated catalyst till
the end of the year 2004 within 9 weeks instead 11 (including transport).
One of the approved suppliers answered positively but asked for some
adjustment in packaging of spent catalyst which did not require additional
cost, that allowed the company not to buy new quantity of 1.000 kilograms
of fresh platinum catalyst and generated a saving in cost of capital of US
$20,000 in last 3 months of the year 2004.
Negotiations with key suppliers for platinum catalyst finished suc-
cessfully and resulted with new contracts where maximum regeneration
time is 8 weeks. New contract with one of them was signed on February
2005, and with another one on March 2005.
New contract with supplier is a powerful tool for sustaining of new
agreed platinum catalyst regeneration performance, and performance in
the year 2005 is better than promised. All involved in platinum catalyst
handling were educated against that standard operating procedure.
Both of these improvements cycle time was reduced by 30 per cent
and the inventory of the catalyst reduced from 7.728 to 4.500 kilograms.
The overall annual savings related to avoidance of cost of capital needed
for buying of new quantity of catalyst was $408,615 per annum.
1. Cellular manufacturing
2. Kanban pull system
3. Theory of constraints (TOC)
• Kanban cards
• Standard containers or bins
• Workstations, usually a machine or a worktable
• Input and output areas
The input and output areas exist side by side for each workstation on the shop
floor. The Kanban cards are attached to standard containers. These cards are used
to withdraw additional parts from the preceding workstation to replace the ones
that are used. When a full container reaches the last downstream workstation, the
card is switched to an empty container. This empty container and the card are then
sent to the first workstation signalling that more parts are needed for its operation.
A Kanban system may use either a single card or a two cards (move and pro-
duction) system. The dual card system works well in a high up-time process for
210 Total Supply Chain Management
simpler products with well-trained operators. A single card system is more appro-
priate in a batch process with a higher changeover time and has the advantage of
being simpler to operate. The single card system is also known as ‘Withdrawal
Kanban’ and the dual card system is sometimes called ‘Production Kanban’.
The system has been modified in many applications and in some facilities
although it is known as a Kanban system, the card itself does not exist. In some
cases the empty position on the input or output areas is sufficient to indicate
that the next container is needed.
Board
Stage 1
1 2 3 Three cards
Planning board
Board
Stage 2
3 4 5 Three cards
Scheduling board
Pallet
Stage 3
5 One card
Production 1
Pallet
Stage 4
5 One card
Production 2
Pallet
Stage 5
5 One card
Despatch
Both the planning board and the scheduling board contain three cards
each as a buffer between the variability of production cycle time and the
availability of materials.
When the card arrives from the despatch (Stage 5) it is kept on the
planning board and planning for the product starts. When the planning
board is full with three cards, the third card is passed to the scheduling
board and production scheduling is ensured. Similarly when the sched-
uling board is full, the third card is transferred to the pallet at the
Production Station 1 and actual production begins.
When the pallet in Stage 3 (Production 1) is full, the card then moves
to the next station (Production 2) in Stage 4, and then on to despatch in
Stage 5. After the goods are despatched, the card returns to the planning
board and the next cycle begins.
The pilot exercise was successful. It achieved an improvement in cus-
tomer service which rose from 84 per cent to an excellent 98 per cent and
inventory was also reduced. The Kanban system was extended to nine
additional key products. The manual system was retained for the above
five stages, although both the planning and stock adjustment processes
were supported by MFG-Pro, the ERP system.
TPM requires the manufacturing team to improve asset utilization and manufac-
turing costs by the systematic study and the elimination of the major obstacles
to efficiency. In TPM these are called the ‘six big losses’ and are attributed to
(i) breakdown, (ii) set-up and adjustment, (iii) minor stoppages, (iv) reduced
speed, (v) quality defects and (vi) start-up and shut-down.
The process of autonomous maintenance is to encourage operators to care for
their equipment by performing daily checks, cleaning, lubrication, adjustments,
Lean and agile supply chain 213
size changes, simple repairs and the early detection of abnormalities. It is a step-
by-step approach to bring the equipment at least to its original condition.
Some managers may hold the belief that in TPM ‘you do not need experi-
enced craftsmen or engineers and all maintenance is done by operators’. This
is not true. The implementation of a maintenance policy with appropriate infra-
structure is fundamental to planned maintenance. Planned maintenance is the
foundation stone of TPM. However, if the skill and education levels of oper-
ators are high then a good proportion of planned maintenance activities should
be executed by operators after proper training. Cleaning, lubrication and minor
adjustments together with an ability to recognize when a machine is not func-
tioning correctly should be the minimum which is required of operators.
For TPM to succeed a structural training programme must be undertaken in
parallel with the stages of TPM implementation. In addition, ‘one point les-
sons’ can be used to fill in a specific knowledge gap. This uses a chart which is
displayed at the workplace and describes a single piece of equipment and its
setting or repair method.
Whilst great progress can be made in reducing breakdowns with autonomous
maintenance and planned maintenance, ‘zero breakdowns’ can only be achieved
by the specification of parts and equipment which are designed to give full
functionality and not to fail. All engineers and designers of the user company
should work concurrently with the suppliers of equipment to achieve a system
of maintenance prevention.
Although there is a special emphasis of input by different employees to differ-
ent aspects of TPM (e.g. ‘six big losses’ for middle management, ‘autonomous
maintenance’ for operators, ‘planned maintenance’ for middle management,
‘maintenance prevention’ for senior management), TPM involves all employ-
ees and the total involvement is ensured by establishing TPM work groups or
committees. Figure 13.3 illustrates an example of a TPM organization.
Company TPM
Technical director committee
Factory TPM
Plant manager committee
Section TPM
Manufacturing manager committee
Line TPM
Supervisor committee
TPM
Team leader circle
Approach
A TPM programme was launched at the Utsunomiya plant in July 1992
with the objective of zero losses:
• zero stoppages
• zero quality defects
• zero waste in materials and manpower
Implementation
The initial thrust of the programme was the implementation of ‘autono-
mous maintenance’ following the JIPM’s seven steps:
1. Initial cleanup
2. Elimination of contamination
3. Standard setting for operators
4. Skill development for inspection
5. Autonomous inspection
6. Orderliness and tidiness
7. All-out autonomous working
To implement the seven steps, ‘model machines’ (those giving the biggest
problems) were chosen. This approach helps to develop operators’ knowl-
edge of a machine and ensures that work on the model can be used as
the standard for work on other machines. It also helps motivation. In that
if the worst machine moves to the highest efficiency, this sets the tone for
the rest of the process.
The improvements to the machines were made using Kaizen method-
ology (small incremental improvements), and were carried out by groups
of operators under their own guidance. Two means of support were given
to operators – a Kaizen budget per line so that small repairs and capital
expenses could be agreed without delay and the external JIPM facilitator
provided encouragement and experience to workgroups.
T Total time
Unavail
A Available time
time
Operation Planned
O
time down time
Production Routine
P
time stops
Effective Unexpect
E
time stops
Total time defines the maximum time within a reporting period, such as 52
weeks a year, 24 hours a day, 8760 hours in a year.
Available time is the time during which the machine or equipment could be
operated within the limits of national or local statutes, regulation or convention.
1
In Unilever Plc, the methodology was known as PAMCO (Plant and Machine
Control).
2
In GlaxoWellcome it was called CAPRO (Capacity Analysis of Production).
Lean and agile supply chain 217
Operation time is the time during which the machine or equipment is planned
to run for production purposes. The operational time is normally the shift hours.
Production time is the maximum time during which the machine or equip-
ment could be expected to be operated productively after adjusting the oper-
ation time for routine stoppages such as changeover and meal breaks.
Effective time is the time needed to produce a ‘good output delivered’ if the
machine or equipment is working at its specified speed for a defined period. It
includes no allowances for interruptions or any other time losses.
It is important to note that effective time is not recorded, it is calculated from
the specified speed as:
Good output
Effective time
Specified speed
• It provides information for shortening lead time and changeover time and a
foundation for SMED.
• It provides essential and reliable data for capacity planning and scheduling.
• It identifies the ‘six big losses’ of TPM leading to a sustainable improve-
ment of plant reliability.
Effective tim
me 67.71
Production efficiency 58%
Production time 116.5
It is important to note that the effective time was calculated and not
derived from the recorded stoppages. There will be an amount of
unrecorded time (also known as time adjustment) as, in the example,
given by
Unrecorded time (Production time Unexpected stoppages)
Effective time
(116.5 27.25) 67.71
21.54 hours
In order to retain the name ‘Five S’, a number of English language versions
have evolved. These include:
• Seiri: Sort
• Seiton: Set in order/Stabilize
• Seiso: Shine
• Seiketsu: Standardize
• Shitsuke: Sustain
42 per cent reduction in the overall floor space and 20 per cent improve-
ment in operational efficiency.
The system has become a one-piece flow operation between assembly
and mechanics, enabling everyone involved to know what the station has
and what it needs.
Source: Skinner (2001)
Quality assurance
Womack Jones and Roos (1990) propose perfection as the fifth Lean principle
and according to this a lean manufacturer sets his/her targets for perfection in
an incremental (Kaizen) path. The idea of TQM also is to systematically and
continuously remove the root causes of poor quality from the production
processes so that the organization as a whole and its products are moving
towards perfection. This relentless pursuit of the perfect is key attitude of an
organization that is ‘going for lean’.
The incremental path to TQM progressively moves from earlier stages of
quality control and quality assurance. Quality assurance focuses on the preven-
tion of failures or defects in a process by analysing the root causes and sustain-
ing the improved process by documenting the standard operating procedure
and continuous training. TQM is quality assurance of all processes across the
organization involving everyone from the top manager to a trainee. Therefore,
the central driver towards perfection is quality assurance.
This drive for quality assurance has now been extended beyond TQM to Six
Sigma with additional rigour in training deployment (e.g. Black Belts and Green
Belts), the methodology of DMAIC (e.g. Define, Measure, Analyse, Improve and
Control), and measurement (both variances and savings). The principles of Six
Sigma are embedded in the path towards perfection in a lean supply chain and Six
Sigma has now moved to Lean Sigma and FIT SIGMA. Basu and Wright (2003)
explain that the predictable Six Sigma precisions combined with the speed and
agility of Lean produces definitive solutions for better, faster and cheaper business
processes. Through the systematic identification and eradication of non-value
added activities, optimum value flow is achieved, cycle times are reduced and
defects eliminated. The dramatic bottom line results and extensive training
deployment of Six Sigma and Lean Sigma must be sustained with additional fea-
tures for securing the longer-term competitive advantage of a company.
Approach
In 1998, Seagate’s senior executive team was concerned that business
performance was not on par with expectations and capabilities. The
quality group was charged with recommending a new model or system
with which to run the business. The Six Sigma methodology was
selected and launched in 1998 to bring common tools, processes, lan-
guage and statistical methodologies to Seagate as a means to design and
develop robust products and processes. Six Sigma helps Seagate to make
data-based decisions that maximize customer and shareholder value thus
improving quality and customer satisfaction while providing bottom line
savings.
Six Sigma was one of the three key activities seen as essential for
Seagate’s continuing prosperity. The other two were:
Implementation
Seagate Springtown (which is part of Seagate Recording) started a sup-
ply chain project to improve materials management and develop a stra-
tegic vendor relationship. The fabrication plan at Springtown introduced
the Lean Manufacturing philosophy that recognizes waste as the primary
driver of cycle time and product cost. Very soon a change had taken
place at Springtown and Lean Manufacturing was wholly integrated
with the supply chain initiative.
The corporate office at Scotts Valley was rolling out a global Six
Sigma deployment programme. The Springtown site followed the Six
Sigma training programme and implemented a number of tools and tech-
niques including the process map, sampling plan, cause and effect analy-
sis and control plans, which identified a ‘hidden factory’. The less
visible defects of this ‘hidden factory’ included:
The main learning points from the Six Sigma programme at Seagate
Technology include:
1. Companies using Six Sigma need to learn how to use the metrics to
manage – to make appropriate decisions on a holistic basis, avoiding
sub-optimization. This task of integration with the whole of the com-
pany’s business process is the key.
2. Set aggressive goals – do not make them too easy.
3. Develop a system for tracking ‘soft savings’.
4. Develop a common language and encourage its use on a widespread
basis early in the program.
5. Embed the business process within the organization by training
all functions – use green, black belt and customized programs as
appropriate.
Source: Basu (2004, p. 257)
The Toyota Production System is frequently modelled as a house with two pil-
lars. One pillar represents JIT, and the other pillar, the concept of jidoka. Jidoka
is ‘automation with a human touch’. This is usually illustrated by example of a
machine that will detect a problem and stop production automatically rather
than continue to run and produce bad output. Jidoka principle contributes to the
achievement of both high efficiency and sustainable quality assurance.
The principle was first used by Sakichi Toyoda at the beginning of the 20th
century when he invented a loom which stopped when the thread broke. Jidoka
comprises a four-step process that engages when abnormalities occur:
The first two steps can be mechanized or automated. Poka-yoke method also
allows a process to detect a problem and stop. Ultimately, it is about transfer-
ring human intelligence to machines to eradicate the problem.
The cost of the buffers in capacity and inventory will be offset by a higher margin
and the lower number of goods needed to be sold. The agile supply chain is
achieved, according to Fischer, by adopting four rules, such as (1) accept that
uncertainty is inherent in innovative products, (2) reduce uncertainty by find-
ing data that can support better forecasting, (3) avoid uncertainty by cutting
lead times, increasing flexibility in order to produce to order or move manufac-
turing closer to demand and (4) hedge against uncertainty with buffer inven-
tory and excess capacity.
Yusuf et al. (2003) claim that there are four pivotal objectives of agile manu-
facturing as part of an agile supply chain. These objectives are (1) customer
enrichment ahead of competitors, (2) achieving mass customization at the cost
of mass production, mastering change, (3) mastering change and uncertainty
through routinely adaptable structures and (4) leveraging the impact of people
across enterprises through information technology. This list clearly shows that
enhanced responsiveness is a major capability of an agile supply chain.
In congruence to our research and experience we summarize that in order to
achieve the responsiveness required for innovative products, an agile supply
chain should contain the following key characteristics:
1. Flexibility
2. Market sensitivity
3. A virtual network
4. Postponement
5. Selected lean supply chain principles
guided by regular inflow of sales data from company’s stores around the
world.
Raw materials are procured from three buying offices in the UK,
China and the Netherlands and most of the materials are supplied from
India, China, Mauritius, Turkey, Morocco and also from New Zealand,
Australia, Italy and Germany. Approximately 40 per cent of broadest but
least transient garments are purchased as finished products from the low
cost centres of the Far East. The remaining 60 per cent are produced by
quick response in Zara’s-automated factories in Spain and a network of
small contractors. Materials or fabric are also held in semi-finished form
(e.g. un-dyed and un-printed),
Zara’s manufacturing systems are modelled upon ideas developed in
conjunction with Toyota. The operations with a higher economy of scale
(e.g. cutting, dying, labelling and packaging) are conducted in-house to
enhance cost efficiency. Other manufacturing activities including the
labour intensive finishing operations are accomplished by a network of
300 specialist subcontractors. These subcontractors work exclusively for
Zara’s parent company, Inditex SA. They receive necessary training and
technological, financial and logistical support as if they are subsidiaries
of Zara. The system is flexible to adjust total capacity depending on the
fluctuation of demand and production is kept at level below expected
sales to keep the stock moving.
Zara’s rapid and sustainable growth in a competitive market is attrib-
uted to its ability to establish an agile supply chain which also incorp-
orates many lean characteristics. There is a success story of a combined
lean and agile supply chain strategy.
Adapted from Christopher (2000)
Summary
Changing customer and technological requirements, volatile markets and
global sourcing have created fresh challenges to supply chain management and
the traditional forecast driven longer and slower logistic pipelines are becom-
ing non-competitive and therefore unsustainable. In this chapter, we have dis-
cussed how to respond to this challenge by a lean and agile supply chain. We
have developed the key characteristics of a lean supply chain as elimination of
waste, smooth operation flow, high level of efficiency and quality assurance.
We have differentiated the characteristics of an agile supply chain as flexibil-
ity, market sensitivity, a virtual network, postponement and selected lean sup-
ply chain principles. We have also given guidelines to apply appropriate
strategies of lean and agile supply chain. The supply chain objectives and char-
acteristics of a lean and an agile supply chain are summarized in Figure 13.5.
228 Total Supply Chain Management
Lean Agile
• Flexibility
• Elimination of waste • Market sensitivity
Process • Smooth operation flow • A virtual network
characteristics • High level of efficiency • Postponement
• Quality assurance • Selected lean supply
chain principles
Introduction
A columnist in the Times of India, 6 September 2006 asked readers to picture a
busy evening in a small town supermarket in India in 2010. ‘Jagannath Dash the
manager, watches a large-screen display with satisfaction. He sees from the
display that it is time to open more checkout lines and that there is a shortage of
shopping carts in circulation. A red light on the screen highlights that it is time to
restock the oatmeal rack’. To readers in Europe and North America, or even
Australia and New Zealand, the above description would seem to be reflecting
what we imagine is already common practice. We would believe, or are led to
believe in text books, journal articles and magazines, that computer systems exist
and are used that link sales, to stock records, and trigger orders based on preset
re-order levels. Such systems are also meant to calculate stock turn and profit mar-
gin by line item, and can indicate the customer profile for a particular store. For
example, the products being purchased in a particular store could suggest that
most of the customers in that market area have young families, one pet animal,
buy lower priced wine and will favour on special items. When combined with a
loyalty card, where customers gain points for each purchase with a reward once a
certain amount has been spent, the computer system could know more about indi-
vidual households purchasing habits than will the customer themselves know.
How many of us know, how much bread and milk we buy a week, or how much
we spend on fruit a week?
having to be removed from the shopping trolley. Operationally, the process and
the benefits are essentially the same.
Point of sale
When sold, bar coding at point of sale (POS) adds up the cost of all the items
the customer has picked and does not rely on the arithmetic ability of the check
out clerk. The customer generally will present a plastic bank debit or credit card,
and sometimes a loyalty card. Irrespective, whether a debit or a credit card,
and/or loyalty card from the retailers point of view the result is the same. Eftpos
(exchange of funds at point of sale) transfers money from the customers bank
and directly into the retailers bank account (less a bank fee) at the time of the
sale. No money needs to physically change hands. The check out clerk does not
have to possess arithmetic skills and is absolved from having to add up, calcu-
late change, or for being blamed from entering wrong prices. Once the bar code
is read into the system the computer does it all.
The bar code action at the POS reduces the potential for human error between
the customer and the check out clerk, but even more importantly updates stock
records.
Re-order system
The re-order system will require a calculation taking into account stock turn,
lead times, and a reserve level to determine a re-order level. It is important in
the grocery industry not to hold too much stock not only because of the finan-
cial cost of holding stock and limited shelf space, but also the perishability of
food items (used by dates). It is also important not to run out of stock. The cal-
culation of a re-order point is important. Bar coding updates information of
average lead times, average demand and adjusts for seasonal ups and downs.
Flow of information
A POS system that is integrated with suppliers will enable information to be
transmitted direct to the suppliers and further up the supply chain. Apart from
the saving in clerical work of repetitive entering, and checking of data and
correcting errors the electronic exchange of data as described above enables
fast and accurate sharing of information. If organizations can have faith in the
system and trust each other, major suppliers (factories and distributors) will be
responsible for replenishment of their products based on the information
received direct, electronically, from the retail POS. The responsibility of the
smooth flow of goods is transferred to the supplier. In effect the supplier can
manage the sales and marketing of their products in the retail stores. The major
benefits of the direct sharing of information is that key suppliers can react
quicker, delivery is quicker, inventory of materials are reduced, and product is
fresher.
Reality
The above describes what could happen.
232 Total Supply Chain Management
Food processor
Customers Retailers
bank bank
EFT Re-order
Distributor
POS
Customer
Bank card Retailer Picking slips Cross docking
Point of sale facility
Loyalty card
Accounting
records
Sales/Margins
Accounting
reports Accounts payable
Budget reports
The reality is that although the technology has been available for years not
all supermarkets or other fast-moving consumer good retailers actually make
use of the technology to the extent portrayed above and manual entry of data
and repetitive entries at each level of the supply chain are made.
Typically shelves are manually checked, orders are raised by hand and are sent,
generally by e-mail, to the regional warehouses rather than direct to the distribu-
tors. The regional warehouses manually load orders received from retailers into a
computer system. The computer system aggregates orders which are e-mailed to
the distributors. As stock outs at retail are unacceptable, to avoid late deliveries
regional warehouses find it prudent, indeed necessary, to carry stock in anticipa-
tion of orders, and to order ahead of actual demand in anticipation based on past
seasonal demand, and late delivery from suppliers further up the supply chain.
Once an order is received from the regional warehouse the distributors in
turn manually load the aggregated demands into their computer systems and
place orders further up the supply chain, and so on.
Back at the regional warehouse when inwards goods are received they will
be entered into the computer to update the regional warehouse stock records.
Most systems will not allow goods to be despatched until they have been
receipted into the computer system. Picking slips are generated by the regional
warehouse computer. In a parody of the cross docking process goods are
received in one side of the warehouse and despatched from the opposite side.
When received, after being entered into the computer, goods are stored in racks.
When the picking slips for each retail store are printed they show the packer,
Retail supply chain 233
the order in which to collect and accumulate the various items required by each
retail store. The computer will calculate and show the shortest route around the
warehouse to pick the required bundle of goods. By using a bar coding wand
the packer will record what has been packed and the regional warehouse stock
records will be updated. Goods are loaded onto pallets for delivery to retailers
at the other side of the warehouse. As each delivery truck will be delivering to
several stores the delivery route will be planned to reduce the distance trav-
elled. The order in which pallets are loaded onto the delivery trucks will take
into account the order in which they will be delivered.
The above process, with data being re-keyed (with added opportunities for
human error) into respective computer systems is shown in Figure 14.2. It is
Regional ware
Retailer Distributor
house
not hard to find non-value adding activities in this approach. Compare this to
the true cross docking process shown in Figure 14.3. The more entries are
required the more chance there is of errors and delays.
Orders
automatically triggered Demand on
Retailer
distributor
point of
sales Picking Distributor automatically
slips aggregates orders
Cross Inwards
docker Goods
To
Goods picked
retailers
and out within
24 hours
in many cases, especially in the apparel industry, retailers cannot change their
pre-season sales orders as the lead time is such that orders have to be ‘fixed’
before the season begins. Fisher et al. (2000) from their research give the
example of a large apparel retailer in the USA having to order 11 months in
advance for products with product life cycles of only 3 months. The retailer in
question did do product testing but ‘the problem is we already own the product;
the test merely reveals that it will be a dog once it gets to the stores’.
One manufacturer has found a way to overcome the lead-time problems so
as to be able to quickly respond to fashion. Benetton, an Italian apparel manu-
facturer makes sweaters in bulk, but delays the dyeing process until after initial
sales figures are received from the retailers. In other words, colour choices are
made after the manufacture. This approach has increased the cost of production
by 10 per cent but has resulted in improved forecasts, less surplus stock and due
to quick response to customer demand higher sales which has more than com-
pensated for the increase in production cost. Major retailers are responding to
challenges of lean and agile supply chain (see Chapter 13) as the following case
example of Tesco illustrates.
and inspection and to prepare flow of fast moving products straight through
to despatch.
The key next step for Tesco and its major suppliers was to jointly analyse
changes in demand pattern using Collaborative Planning Forecasting
and Replenishment (CPFR) to adjust production volumes to agreed fore-
cast and also to decided off-line stock and stocking points. Many manu-
facturers had already been using lean manufacturing techniques such as
total productive maintenance (TPM). Products would be made to order
and picked up by milk round where they would flow through the RDC
and out to the store within 2 to 5 days being touched only 70 times and
stopping in only two stocking points.
With the introduction of the Clubcard scheme on-line shopping by
customers Tesco has been building up a customer relationships manage-
ment (CRM) system and plans to use loyalty card and home shopping
data to customize the range of products displayed in each store to the
buying profiles of that store’s customers. Given the growing diversity in
types of customer and many alternative routes to market it is unlikely to
have just one solution. However the key to doing so will be a relentless
focus on a customer-driven supply chain.
Adapted from Jones and Clarke (2002)
Accuracy of information
The underlying assumption with the bar coded ‘ideal’ model is that information
is accurate. In the USA in the grocery industry the annual stock shrink is $92
billion. Stock or inventory shrink is a term used for the discrepancy between
what the records show as being the balance and what is actually physically on
hand. This is a loss that goes straight to the bottom line! The problems are many.
In 2005, shoplifting accounted for $5 billion and employee theft for a stagger-
ing $46 billion, Nishi (2006). The other $41 billion loss was due to human error.
Human error is most likely to occur when entries are hand keyed rather than
bar code read. Other examples are when an item is returned because it is the
wrong size and it is replaced by the sales person without scanning the return
and the replacement product although prices could be different. Irrespective of
price the stock records for both ‘small’ and ‘large’ size will be wrong. In the
grocery trade the check out clerk will often scan in one item several times
rather than scanning six similar items. For example, out of six packs of differ-
ent flavoured yoghurt, only one will be scanned perhaps six times at the same
price. Fisher et al (2000, p. 121) report that one supermarket chain consistently
record sales of medium ripe tomatoes to be 25 per cent higher than the actual
amount of medium ripe tomatoes delivered to the stores, ‘if it’s red and soft it’s
a medium tomato at check out’ although the actual tomato might be a higher
priced vine ripened. Other problems are the recording of inwards goods, for
Retail supply chain 237
What is interesting about the beer game is that it has been played so many
times yet the patterns of behaviour generated in the game are remarkably similar.
The beer game introduces the players to the phenomenon known as the ‘bullwhip
effect’. In practice, this phenomenon is observed in all forms of the supply chain
but especially in retail supply chains.
These factors all contribute to increase the variability of orders placed within the
supply chain. One of the first steps that can be taken to reduce the bullwhip effect
is to ensure all stages in the supply chain have access to the customer demand
information. By centralizing the customer demand information and sharing it
with all stages the bullwhip effect can be reduced but it will not be eliminated.
Simchi-Levi et al. (2003) suggest the following methods for coping with the
bullwhip effect:
Strategic alliances
In order to achieve an integrated supply chain the various members need to
work together. The three most important types of supply chain related strategic
alliances are third-party logistics (3PL), retailer–supplier partnerships (RSP)
and distributor integration (DI).
Retailer–supplier partnerships
As customer satisfaction become more important in gaining a competitive edge
and as due to large-scale world class competition prices have been driven down
and margins have become tighter at retail it makes sense to try and to create
co-operative efforts between suppliers and retailers. The objective should be to
achieve benefits for all parties and not for one party to try and to dominate at
another’s expense. The types of RSPs can be viewed on a continuum. At one
end is information sharing, in the middle is continuous replenishment enabled
by sharing information from POS, and at the other end is a consignment scheme
of vendor-managed inventory (VMI).
In a simple quick response strategy, suppliers receive POS data from retailers
and use this information to synchronize their production and inventory activities
Retail supply chain 241
with actual sales at the retailers. In this strategy, the retailer still prepares indi-
vidual orders, but the POS data is used by the supplier to improve delivery per-
formance and hence reduce supply variability.
In a continuous replenishment strategy, sometimes called rapid replenishment,
vendors receive POS data and use this data to prepare shipments at previously
agreed upon intervals to maintain specific levels of inventory.
In a vendor-managed inventory system, the supplier decides on the appropriate
inventory levels of each product and the appropriate policies to maintain these
levels. The goal of many VMI programmes is to eliminate the need for the retailer
to oversee specific orders for replenishment. The ultimate is for the supplier to
manage the inventory and only receive payment for it once it has been sold by
the retailer in essence the retailer is providing an outlet for the supplier!
Distributor integration
Modern information technology has enabled this strategy in which distributors
are integrated so that expertise and inventory located at one distributor is available
to the others. DI can be used to address both inventory-related and service-related
issues. In terms of inventory, DI can be used to create a large pool of inventory
across the entire distributor network thus lowering total inventory costs while
raising customer service levels. Similarly DI can be used to meet the customers
specific needs by directing those requests to the distributor’s best suited to
address them. The down side is that if you were a retailer stocking high value
electronic equipment, why would you want to deplete your stock by supplying
a competitor with goods so that they can make sale? Who is making the profit
and who has incurred the financial cost of stock holding and carrying the risk?
standards for reject or acceptance of produce. The farmer does the work and
takes the risk, but has little choice to accept the terms of the supermarket.
The international fast food giant McDonald’s operates in a similar fashion.
The upside for the consumer is a consistent standard of quality.
Even though the manufacturers have become giants it is now accepted that
the power is with the retailers, rather than with the manufacturers. In the grocery
industry, and also for other retailers of fast-moving consumer goods large con-
glomerates such as Wal-Mart (trading as ASDA in the UK) and Tesco’s are the
big spenders. In the UK, five major supermarket chains account for just on
70 per cent of food sales, and over 50 per cent of food in the UK is sold from
1000 huge super or hyper markets. Cap Gemini Ernst and Young in an extensive
market analysis, The State of the Art Food Report (2003) conclude that in the
near future four or five large retail organizations will operate on a worldwide
scale and 10 food manufacturers/processors will operate globally with 20–25
global brands, along with a number of consumer goods companies that will be
dominant in particular countries or regions. Add to this consumers have a
growing degree of choice and greater ability to make comparisons. As a result
their expectations are rising and needs constantly changing. In 1975 items
available to consumers (SKUs) in supermarkets totalled 14,000 and by the end
of 2006 the number is estimated to be 300,000! In 2006 in the USA 13,000 new
items were added to the list, of which it is expected that 11,000 will not survive.
Value in this environment is a moving target. Any organization must be flex-
ible to be able to adapt to these changes. It is very difficult for a single organ-
ization to possess all the capabilities required to keep up. The large retailers can
control, or as some say black mail the manufacturers and processors. Smaller
organizations do not have this clout. They now look for suppliers who can pro-
vide the skills and capabilities needed as they require them. Smaller firms form
partnerships with appropriate skilled suppliers that last as long as the need exists.
As demand changes so to do the partnership arrangements.
Advances in technology
The merging of information and communications technologies has supported
the growth in supply chain partnerships. These technologies have enabled exten-
sive connectivity. Today’s computer networks, open systems standards and the
Internet enable people working in different areas of the supply chain to maintain
constant contact. Since information transactions have become so easy, there is
less of a need to restrict operations to within traditional organizational bound-
aries. These new capabilities offer the ability for supply chain partners to share
information in real time. This enables the partnering firms to hold lower inven-
tories and incur fewer transactions costs. These lower costs can in turn be passed
on to the customer in the form of lower prices and better value. Or alternatively
retained as increased profits!
Organizations are increasingly recognizing that great improvements in value
can be attained by co-ordinating the efforts of partners along the supply chain.
Retail supply chain 243
When firms focus only on their internal operations they are making decisions
in isolation and as a result this can lead to the overall performance of the supply
chain deteriorating. Firms who work together and share their plans and other
information are actually able to improve the overall supply chain performance
to their mutual benefit.
Conclusion
Although business to customer – e-tail – is here to stay, the use of the Internet
for business to business integration is the real issue for this chapter. Integration
244 Total Supply Chain Management
of the supply chain players has been made possible with the use of the Internet
and the associated technologies.
The impact of the new technologies on the supply chain provides an interesting
development. The Internet and the evolving supply chain strategies has seen a
shift in transportation and order fulfilment strategies away from case and bulk
shipments to single item and smaller-size shipment and from shipping to a
small number of stores to serving highly geographically dispersed customers.
This shift has seen the importance of partnerships with parcel industries. It has
also increased the importance and complexity of reverse logistics of handling
the significant numbers of product returns. One of the big winners in the new
developments is the parcel industry. An important advantage for the parcel
industry is the existence of an excellent information infrastructure that enables
real-time tracking. Those players in this industry who work to modify their
own systems in order to integrate it with their customers’ supply chains are
likely to be successful (Simchi-Levi et al., 2003; Wright and Race, 2004).
As organizations come to understand the power of the Internet, new models
of business are sure to evolve. One thing is that certain supply chains of the future
will be managed along the lines of the Indian journalist we quoted at the begin-
ning of this chapter. It is obvious that the big players will take the co-ordination
role. We are of the opinion that is consumers will benefit. There will be greater
selection, quality will be consistent, and grocery items will be fresher. Although
prices will not go down savings in costs throughout the supply chain will keep
prices at a reasonable level.
The future looks to be exciting and bright.
15
Green supply chain
Introduction
Organizations are facing increasing challenges to balance business perform-
ance with environmental issues and these challenges have created a new area
of green supply chain management. Green supply chain refers to the way in
which organizational innovations and policies in supply chain management
may be considered in the context of the sustainable environment. If industry is
seen as a complex web of buying, making, selling and delivering, then the
opportunities for environmental considerations when brought into play in sup-
ply chain management could not only provide sustainable environmental meas-
ures but also be beneficial to both organizations and individual consumers. The
objectives of green supply chain management are aimed at a win-win strategy.
Environmental regulations are also changing the way supply chains are
designed and managed. The problem is that the sheer number of regulations,
other influences such as changing consumer sentiment, and the complexity of
global trade, makes it difficult for companies to decide exactly how they should
respond to these pressures.
Not surprisingly, there are instances in recent history where the performance
of manufacturing businesses was drastically affected due to negligence in envi-
ronment and safety standards. A failure in product safety which caused deformed
‘thalidomide children’ is still haunting the manufacturers. The gas explosion of
1984 in Bhopal, India, which killed over 1000 people, permanently damaged the
business of the manufacturers. Food poisoning costs to John Farley and Wests
were huge. Environmental pollution by chemical companies in New Jersey
resulted in numerous legal battles with consumers and also affected their busi-
ness performances. On a global scale industrial pollution is the main contributor
to the so-called ‘greenhouse’ effect and global warming.
The greenhouse gases include carbon dioxide, methane, CFCs (chlorofluro-
carbons) and nitrous oxide. CFCs are produced only in industrial processes.
The combustion of fossil fuels (coal, oil and natural gas) is the major source of
manufactured carbon emissions. Greenhouse gases allow incoming radiation
from the Sun to pass through the atmosphere of the Earth. The Earth absorbs
the radiation and reflects it back. When this outgoing radiation meets particles
of a greenhouse gas the radiation is absorbed by the particle, and on a large
scale all greenhouse gases around the Earth form a sort of warm blanket caus-
ing global warming. Some scientists believe that increased emission of green-
house gases, particularly carbon dioxide, are causing energy to be trapped,
increasing the global temperature.
246 Total Supply Chain Management
CFCs are used in aerosols, refrigerator coolants and air conditioners. They are
a strong contributor to the greenhouse effect but are relatively easy to regulate
because they only result from the manufacture of refrigeration units and aerosols.
Methane and carbon dioxide emissions are linked to a much larger economic
infrastructures and are more difficult to regulate. In 1997, the Kyoto Treaty was
drawn up in Kyoto, Japan, to implement the United Nations Framework
Convention for Climate Change. It largely binds industrial nations to reduce the
emission of greenhouse gases by an average of 5.2 per cent below their 1992 lev-
els over the next decade. When the USA pulled out in March 2001, the treaty was
severely in disarray. A compromise was reached by 180 nations in July 2001 in
Rio de Janiro; the US government refused to sign it as it was argued that not only
would Kyoto be bad for the US economy but it would be ineffective, because
major developing nations like India and China were not covered by its provi-
sions. Australia also refused to agree to the treaty and more recently (2006)
Canada has abandoned the specific emission targets set by the Kyoto agreement.
It should be noted that India and China are two of the worlds biggest and most
rapidly growing polluters. Some environmentalists argue that emissions would
have to be cut by 60 per cent and the target of Kyoto is not enough. They claim
gases can remain in the atmosphere for a century or more. On the other hand, not
every scientist believes that global warming is any thing more than a cyclical
phenomenon and that the temperature of the Earth rises and falls over long peri-
ods of time irrespective of greenhouse gases.
Whatever the scientific evidence, or lack of evidence, sufficient number of
people (as evidenced by 180 countries signing the Kyoto treaty) mean that no
organization can in the long-term hope to avoid legislation and regulations
designed to honour the spirit of the treaty.
Our personal belief is that environment and safety are not just social or politi-
cal issues; they are vital ingredients contributing to the performance of an organi-
zation. In manufacturing industries, there is much scope for environment and
safety. Accidents do occur and likewise there are many opportunities to prevent
accidents. Apart from humanitarian reasons it is a truism that accidents cost
money. Likewise many businesses and organizations are facing declining reserves
of natural resources, increased waste-disposal costs, keener interest in their
human rights’ records and tighter legislation. These rising environmental pres-
sures and social expectations can be turned to commercial advantage if a strategic
approach is taken to develop a ‘green’ supply chain. The strategic approach of
green supply chain involves complex longer-term considerations involving not
just industry but environment protection has an important international issue.
Industrialized countries, including the US are spending between 0.5 and 1.5
per cent of their gross national product (GNP) on the control of pollution. It is a
big subject and any attempt to make a comprehensive analysis of all the issues is
beyond the scope of this book. In this chapter, we aim to review some of the crit-
ical issues and initiatives of green supply chain under the following headings:
• The supplier knows the product better than the buyer and can maximize
efficiencies and minimize associated wastes.
• Two or more perspectives (or different expertise areas) are better than one
when it comes to designing greener products and processes.
• Working together strengthens the customer–supplier relationship.
• Shared savings and mutual benefits make such efforts even more worth-
while.
Green supply chain 249
Basu and Wright (2005) have established that environment protection relates
to pollution control in two stages. Conventional controls or ‘first generation
pollution’ controls are applied to pollution in air, water and of noise created in
the manufacturing process. Such controls are usually regulated by legislation.
There is also a ‘second generation pollution’ which relates to the problems
caused by the usage of certain products and chemicals over a long period. The
most widespread example of such ‘second generation pollution’ is the contam-
ination of land which permeates ground water.
Causes of pollution
Pollution control engineering has essentially evolved from sanitary engineer-
ing and thus the solutions are primarily concerned with effects rather than
causes, and with control rather than prevention. The overall ongoing economic
impact of pollution has been largely neglected and most of the attention of
manufacturing companies has gone to the cost impact of pollution control.
The contamination of land is mostly caused by the disposal of solid wastes
by manufacturing industries. With the introduction in the UK of the ‘land fill
tax’ the disposal of solid wastes by incineration will be more cost effective and
environmentally friendly in the future.
The three main gases causing air pollution are carbon dioxide, sulphur diox-
ide and nitrogen oxides. For many years the consumption of combustion fossil
fuels has been releasing carbon dioxide to the atmosphere faster than it can nat-
urally be absorbed by photosynthesis (provided by trees and plants). As the
proportion of CO2 in the air increases, it absorbs heat and as a result the atmos-
phere warms up. Sulphur dioxide resulting from the combustion of coal and oil
or any sulphur burning process is another pollutant of air and one of the sub-
stances causing ‘acid rain’. The damage by acid rain to plants and trees is very
evident in parts of Europe. Other acidic gases are the oxides of nitrogen result-
ing from high-temperature combustion processes in power plants.
Lead is a serious pollutant (neurotoxin) affecting nerves and brain. The
sources of lead include emission from motor vehicles, lead pipes carrying
drinking water, paint and other industrial processes. The Royal Commission on
Environmental Pollution recommended in 1983 the benefits of banning the use
of lead in petrol. A second pollution bearing metal is cadmium which is used
industrially in batteries, metal plating and micro electronics. The discharge of
cadmium from local industries in the Severn Estuary in the UK severely dam-
aged the local shellfish industry. A third heavy metal is mercury, causing haz-
ards to life even today. In the 1950s, the discharge of industrial effluents with
high levels of mercury in a Japanese bay led to deformity and death for vil-
lagers who ate the fish from the bay.
Another harmful mineral is asbestos, causing painful and fatal diseases such
as asbestosis and mesothelioma. Many domestic items such as textured ceiling,
ovens, electrical heating equipment in the past contained asbestos. After cam-
paigning by environmental pressure groups, asbestos lagging in power stations
and electric sub-stations has been gradually eliminated in the UK.
250 Total Supply Chain Management
The noise levels in many ‘metal bashing’ and packaging industries caused
low performance and, more seriously, hearing impairment. Today there are
established preventive and protective measures of noise control.
Cost of pollution
In addition to the long-term immeasurable damage done to vegetation, birds,
animals and human beings by air and water pollution, there are many instances
of huge compensation bills paid by polluting industries.
The notorious case of mercury poisoning in Japan referred to above led to
damages of over US $50 million (1971 value) being awarded to 700 people
who were crippled and to the estates of 200 people who died.
In 1978, as a result of the wreck of the oil tanker Amoco Cadiz, 200,000
tonnes of crude oil was discharged into the English Channel. The French
Government presented claims amounting to $2 billion.
In 1992, Cambridge Water Company (UK) were awarded damages of £1
million in compensation for the pollution of land due to tetrachloroethylene by
a local leatherworks company.
Environmental strategies
Royston (1979) suggested an eight-point strategy of environment protection
for a manufacturing company:
1. There is still time to avoid the worst impacts of climate change, if we take
strong actions now.
2. Climate change could have very serious impacts on growth and develop-
ment and if no action is taken global average temperature is likely to rise by
2°C by 2035.
3. The costs of stabilizing the climate are significant but manageable (e.g.
1 per cent of global GDP) and delay will be much more costly.
4. Action on climate change is required across all countries and it need not cap
the aspirations for growth of rich or poor countries.
5. Climate change demands an international response, based on a shared
understanding of long-term goals and agreement on framework of actions.
Summary
‘The scientific evidence is now overwhelming: climate change is a serious
global threat, and it demands an urgent global response’, concludes Nicholas
Stern (2006).
Note this has been disputed by other scientists but irrespective of what we
believe the pressure is on for industry and nations to adopt a green approach to
the supply chain. In this chapter, we have attempted to present a balanced view
Green supply chain 257
Introduction
According to Wikipedia (the on-line free encyclopedia), ‘project management
is the discipline of organizing and managing resources in such a way that these
resources deliver all the work required to complete a project within defined scope,
time and cost constraints. A project is a temporary and one-time endeavour
undertaken to create a unique product or service. This property of being a tem-
porary and a one-time undertaking contrasts with processes or operations, which
are permanent or semi-permanent ongoing functional work to create the same
product or service over-and-over again. The management of these two systems
is often very different and requires varying technical skills and philosophy, hence
requiring the development of project management’. The Project Management
Institutes ‘Body of Knowledge’ (2004) adds that project management is the
most efficient way of introducing unique change.
Because of the one-off unique nature of a project and the repetitive nature of
operations, the traditional approach of project management has been conciously
different from that of operations management. As supply change management
is intextricably linked with operations management, the mind-set of project
managers usually excludes the principle of supply chain management.
The primary objectives of project management (viz. scope, time, cost and risk)
is beginning to include quality as another parameter of objectives. Hence, the
objectives of project management (with the exception of scope and risk) are
identical to those of supply chain management, viz. quality, cost and time.
Typically a major project involves several stakeholders working together with
controlled resources to deliver a completed project. A major project has many
suppliers, contractors and customers; it has procurement and supply, demand
planning and scheduling; it often lasts over several years and has longer lead
times. Therefore, we believe that the management of major projects will benefit
from adopting some customized supply chain management principles as discussed
in this chapter.
It is also evident that there is now increasing awareness amongst both prac-
titioners (www. viasysweb.com) and academics (O’Brien, 2001) of applying
Supply chain for major projects 259
appropriate supply chain principles in major projects. The most noticable change
in the last three decades is the introduction of information and communication
technology with faster and comprehensive systems to improve the efficiency of
project supply chains from procurement to supplier.
In this chapter, we cover the challenges and opportunities of improving the per-
formance of supply chain in major projects under the following headings:
Sponsor
Project board
Project director
Contractors
Subcontractors
Supplier Subcontractor
Supplier
The management of risk in projects is approached in two ways and they are
risk assurance and risk control. The objective of risk assurance is focused on
prevention, avoidance or minimization. The tools, techniques and methodolo-
gies of project management have been developed and applied to enhance risk
assurance. Methodologies, such as BS 6079, ISO 10006, PRINCE2 or PMIBOK
which are all aimed at risk assurance (see Pharro, 2000). For example, the prin-
ciple of project life cycle (see Figure 16.3) breaks a project into manageable
stages, such as definition, organization, implementation and closure, to mini-
mize risks. Project management tools such as critical path analysis and earned
value management also support risk assurance (see Basu, 2004). Risk control
is applied usually with the aid of formal risk registers at all stages of the project
life cycle for events occurring in spite of project assurance principles are applied
to minimize risks. In Figure 16.3, the four major stages of a project life cycle
are underpinned by specialist functions in managing the core activities project
management (i.e. risk assurance) such as cost and time, scope and configuration
Stakeholders management
Quality management
Risk management
and quality and risk control. Additional enabling functions such as stakeholder
management and governance also span across all stages of the project life cycle.
We believe that it is justifiable to recognize the role of supply chain management
as a specialist function during the total duration of the project.
The role of this supply chain management function in a major project, as
described below, is primarily to import and adapt basic principles of supply chain
management from operations management to improve the performance of a
project supply chain.
In the project, IBM led a team that included up to 33 clients and 27 con-
sultants (including Oracle Consulting and Delinea as subcontractors)
and also worked with an outside infrastructure application service provider.
The fully integrated solution that IBM implemented is delivering bene-
fits in BCTC’s major project management such as better access to informa-
tion: for example, Oracle Discoverer enables users to build reports on their
own without technical support. Furthermore because BCTC’s asset data is
now segregated from BC Hydro’s, BCTC can perform data analysis more
easily, thus improving the quality of its decision-making.
Source: IBM Business Management Consultancy (2004)
It is useful to note that SAP AG, largest supplier of ERP systems in the world,
is marketing ERP systems specifically designed for major capital projects. SAP
for Engineering, Construction & Operations (SAP for EC&O), one of SAP’s
Supply chain for major projects 265
Procurement in projects
In the preceding two sections we have described the challenges and opportunities
created by new information and communication technologies in managing
project supply chains. Procurement or purchasing of goods and services from
multitude of suppliers has been the traditional home of supply chain management
in projects. The roles and responsibilities for the management of procurement
in a large project can be seen as a hierarchical sequence of authorization between
various levels of the project organization (see Figure 16.1) from sponsor (or a
client) to subcontractor. These cascade down from the strategic and commercial
drivers acting on the sponsor and progress through various parties in the entire
supply chain according to the procurement strategy. There are variations of
procurement strategies which are hybrids of the following strategies:
• Client-controlled strategy
• Turnkey strategy
• Joint ventures (JVs) and partnering
The key player is a client-controlled strategy (which is also the traditional pro-
curement strategy in construction industry), sponsor or slient, consultants and
contractors. A client initiates and authorizes a project. A consultant undertakes
Supply chain for major projects 267
the feasibility and design and a contractor is responsible for implementing the
project. The client appoints a Project Board and a Project Director who selects
consultants and main contractor. The subcontractors are chosen by the main
contractor.
In a turnkey strategy, main contractor has the responsibility for the design,
construction and commissioning phases of a project. Usually, client appoints
a functional project manager who with his or her project team prepares and moni-
tors a performance specification and scope document. The turnkey contractor’s
project manager has executive authority and more multidisciplinary responsi-
bilities to co-ordinate the project supply chain. London Olympic 2012 project
is broadly following a turnkey strategy and Olympic Delivery Agency is the
turnkey contractor.
Primarily because of the financing sources of larger projects Joint Ventures
(JVs) or partnering strategies are emerging particularly for public sector projects.
Local or regional government policies in some countries (e.g. China) prescribe
JV procurement strategies. The public–private partnerships (PPPs) is a hybrid
of JV in the UK Government sponsored projects where funding is sourced
from both public and private sectors. To operate within these PPP organizations,
the project manager is confronted by two types of diverse cultures and yet has
to secure effective decisions in project supply chain.
The traditional service level agreements (SLAs) where suppliers are penalized
for non-conformance of time, cost and specifications are not appropriate for
procurement strategy based on partnerships. The traditional procurement
thinking should be revisited and there should be a move where a client organi-
zation is actively managing the cause of risk or non-conformance and not the
268 Total Supply Chain Management
effect of the risk. The supply partners are in turn encouraged and incentivized
to improve performance and create competitive advantage for their businesses.
This type of progressive partnership approach is illustrated by the so-called
‘T5 Agreement’ of the London Heathrow Terminal 5 Project of British Airport
Authority (BAA).
• BAA as the client organization holds all the risk all of the time during
the total life cycle of the project – on time, in budget and to quality.
• This was underpinned by BAA’s unique insurance policy against risk.
It is not so much about the cost of the BAA policy but the value it
releases. It did not increase the cost of the project as the insurance
covers the supply chain on T5.
• As BAA will underpin all financial risks, contractors need not worry
that they will be held financially accountable when things go wrong.
• Contractors or suppliers are committed to teamwork in partnership.
There is a requirement for a high level of transparency between BAA
and their suppliers.
• Contractors work to predetermined fixed profit levels.
• Profit is the key driver of supplier incentives. By taking away the
financial risk, BAA is taking away the key commercial constraint and
thus suppliers can focus on technical delivery.
• The T5 Agreement is then supported by other documents such as the
Commercial Policy which defines an appropriate commercial terms
Supply chain for major projects 269
and conditions and the Delivery Agreement which is the legal deed
and conditions of contract.
BAA divided the programme into 18 projects ranging in size from £10 to
£200 million. These were then split further into 150 sub-projects and then
it was split into circa 1000 work packages. The suppliers are engaged as
and when on plans of work or where a supplier’s capability is required.
From the very start BAA requested that suppliers work together in com-
pleting the projects, even those that are traditionally rivals or lower tier
subcontractors. At a corporate level BAA ensured that all suppliers under-
stood that corporate objectives were aligned to achieve a high quality
product within expected cost and enhance reputations. BAA also dealt
with challenges in encouraging the entire workforce to understand, appre-
ciate and trust the working relationship both between contractors and
BAA. They constantly have to reinforce this message to the workforce.
The T5 project is on course to completion complying with targets for
time, budget and quality having generated a team working and partner-
ship culture. The T5 Agreement as a whole looks to become a template in
other major programmes. It now represents a serious alternative procure-
ment route for major programmes of work and project supply chains.
Source: BAA Terminal 5 Project (Basu, 2006)
Level of influence
team members could be chosen from the internal stakeholders with high influ-
ence but with less interest. The stakeholders with high interest but less influ-
ence are good candidates for task team members.
The external stakeholders are more difficult to identify and engage in a proj-
ect supply chain. Turner (1995) defines this group as ‘a group of people who are
often involved without their prior agreement, sometimes against their will, and
who often view the project as being a disbenefit because it somehow distracts
from their local environment’. Pryke and Smyth (2006) argue that major proj-
ects are inherently ‘social’ and suggest so called community network relation-
ships to deal with both the key players of a project and the external stakeholders.
Sometimes projects may not fit into the core operation of an organization or
they may be geographically isolated from the centre of operation. As shown in
Figure 16.5, a major project resides in larger social or community network
boundary and the success of such a project is relationship dependent not only
within the project environment, but also in its wider social or community net-
work. There are several relationship models and approaches in literature, for
example the IMP approach (Ford et al., 2003) and the Nordic School approach
(Gummesson, 2001) and the perceived value approach (Smyth, 2004). Our
opinion, based on observation, is that these approaches are primarily academic.
They stimulate thinking among project team members but do not provide any
specific practical or best practice solutions. Major concerns still remain how to
communicate with external stakeholders throughout the project life cycle.
Given that a long and costly investment is necessary for building up a relation-
ship, it is recognized that developing relationships with stakeholders at the
project initiation stage and maintaining relationships with communication is
important.
External
stakeholders The project
Social
network
Client
Contractor
Supply Supply End
chain chain use
Design
team
Supply and
work cluster
The initiatives and processes in lean project management are deriving benefits
from two sources. Firstly, the traditional approach of critical path scheduling,
Basu (2004, p. 129) is to optimize time for completion and secondly derived
from the lean tools applied in supply chain management (such as value stream
and process mapping) to reduce procurement lead-time and non-value adding
activities.
When work on a critical path stops because resources are busy elsewhere or
critical resources are idle, the cause is likely to be in poor scheduling. The critical
path keeps shifting because of the uncertainty of project work. Goldratt (1999)
with his ‘Critical Chain’ and theory of constraints pointed out that the calcula-
tion of ‘floats’ can be misleading. The apparent buffer of time can evaporate
due to preset times and allocation of resources. Building upon the concept of
‘Critical Chain’ lean project management developed, and it comprises three
major activities:
1. Time buffers are inserted as scheduled of time into projects where non-critical
paths feed into the critical path and act as shock absorbers and keep the
critical path stable.
2. Projects are scheduled into the pipeline after checking the availability of
resource constraints to ensure that schedules are feasible.
3. Buffer consumption is monitored and tasks feeding into the ‘most empty’
buffers are given first priority.
Lean project management principles may have provided good measures to deal
with the uncertainty of project work, but its apparent complexity is pushing
project managers towards the lean approaches of supply chain management.
This lean thinking approach to minimize waste in project supply chain is
272 Total Supply Chain Management
This approach has been defined as lean construction. By first focusing on work-
flow, lean construction unplugs clogs in the project stream and gradually plan-
ning, design, construction, delivery and closure of the project are better
co-ordinated to deliver maximum value for the project owner. Ballard (2001) has
proposed a method of reducing cycle time in home building projects within the
context of even flow production. His innovation is the formation of multi-craft
teams to overlap activities in each phase of the project and also reduce activity
durations through time studies. The principles of lean construction are almost
identical to those of a lean supply chain as discussed in Chapter 13.
Their report showed that 42 per cent of PSA vendors had disappeared in the last
5 years but most of the solutions had been adopted by new vendors. Our critical
observation on PSA solutions is that they are useful data management systems but
the effectiveness in achieving operational excellence in projects depends on how
their outputs are used for project performance improvement. The demise of 42 per
cent vendors in 5 years indicates a moderate success rate of PSA solutions.
Interest in Six Sigma is growing rapidly within the professional project man-
agement community, and the most common question coming from that group
is something like ‘How does Six Sigma relate to the Project Management Body
of Knowledge (PMBoK)?’ Gack (2006) concludes that Six Sigma and PMBoK
do have connections, similarities and distinctions and it is clear that Six Sigma
complements and extends professional project management, but does not replace
it. Both disciplines make important contributions to successful business out-
comes. As described in Chapter 16, the core methodology of Six Sigma, that is
DMAIC (Define, Measure, Analyse, Improve and Control) is closely linked to
the methodology, rigour and stages of life cycle of project management.
Even today project managers are not comfortable with embracing Six Sigma
in managing their projects and their arguments include that a project is unique
and one-off and does not have a stable process and Six Sigma is only effective
in repetitive stable processes. They also question, do we need data driven statis-
tics of Six Sigma in projects where contractors are busy just doing their jobs?
Our response to these doubts is that Six Sigma can be very effective if the tools
and methodology are applied appropriately (fitted to purpose). In ‘Quality
Beyond Six Sigma’ (Basu and Wright, 2003), Chapter 8 ‘Project Management
274 Total Supply Chain Management
and FIT SIGMA’ addresses the issue of fitness for purpose. In projects we have
many repetitive processes and/or we have many processes requiring design. In
both situations DMAIC or DFSS (Design for Six Sigma) can be applied. How-
ever, the caveat is the appropriateness and for this reason we recommend Six
Sigma methodology to larger projects with a longer duration, projects with
large management organizations or multinational contractors.
DMAIC has added the rigour of project life cycle to the implementation and
closeout of Six Sigma projects. Figure 16.6 shows the relationship between
DMAIC with a typical project life cycle.
Project
Define Organise Implement Closure
life cycle
Project organizations are showing positive interests in Six Sigma and courses
and conferences are on offer for project members. Bechtel was one of the early
users of Six Sigma in delivering their multinational projects as the following
case example illustrates.
2003). Bechtel launched Six Sigma in 2000, when the company was
experiencing unprecedented growth – and facing corresponding process
challenges. The company has now implemented Six Sigma in its key
offices and business units around the world. About half of its employees
have had Six Sigma training, and most of its major projects employ its
methods from start to finish.
The investment of Bechtel in Six Sigma reached the break-even point
in less than 3 years, and the overall savings have added substantially to the
bottom line, while also benefiting customers. Some examples:
‘Six Sigma is the most important initiative for change we have ever under-
taken. We are happy to report that it is becoming “the way we work”.’
Source: www.bechtel.com (2006)
Summary
Longer supply chains in major projects with durations over several years will
mean more dependence on other companies and contractors and so collabora-
tion throughout the project supply chain is becoming a must as opposed to tra-
ditional adversarial relationships. Indeed, competitive advantage is increasingly
coming out of the ability to challenge assumptions and deliver projects on time
in collaboration with project partners. In this chapter, we demonstrated with
case examples how the principles of supply chain management including the
approaches of operational excellence can and should be applied in projects,
especially major projects dealing with several contractors over a number of
years, to achieve sustainable, efficient and effective results. The communication
and management of stakeholders in a wider community network of a project
supply chain still remains a challenge.
We propose that a dedicated supply chain manager should be deployed
immediately after the authorization of major project to manage supply chain
276 Total Supply Chain Management
activities over the total life cycle of the project. The supply chain manager
should assume a function role, similar to a risk manager or a quality manager,
reporting to the Project Director to oversee supply chain activities including
supplier partnership, forecasting and scheduling, ERP and PSA systems (where
appropriate) and other operational excellence initiatives.
Part 3: New demands and
trends
Questions
1. Describe a supply chain management approach in managing a major event
like an international book fair. Explain the nine-stage purchasing chain of
decision in the event management.
2. Discuss the role of applying the traditional supply chain approach of man-
ufacturing industries to a service industry such as hotel management.
Explain how you would adapt the processes of supply chain building
blocks in such a service environment.
3. Describe the key features of the market-based ‘transactional’ relationship
and the longer-term ‘partnership’ relationship with ‘suppliers’. It is
unlikely that any service business will benefit from engaging exclusively
in one type of ‘supplier relationship’, discuss this in the context of hospi-
tal services supply chain.
4. What are the common and uncommon supply chain management practices
between a profit and non-profit organizations? What are your recommenda-
tions to apply the supply chain management expertise of the profit sector to
the relief organizations responding to major natural or political disasters?
5. Discuss, with appropriate examples, the new growth opportunities and
supply chain challenges in the emerging markets of:
• China
• India
• Latin America
6. In the Hindustan Lever Limited (HLL) case study of rural supply chain
should HLL enter the informal sector in this way?
What are the threats and opportunities of such a step?
Should HLL roll out this business model?
If the company rolls out this model, what do you think is needed in order
to ensure success?
7. In 1997, Haier Group from China entered the market for wine coolers in
the USA and captured 60 per cent of that specialized segment by 2002.
What was their strategy and why was it a success? Should Haier roll out this
strategy for marketing larger refrigerators in the USA?
278 Total Supply Chain Management
Introduction
We have described the components supply chain building blocks in Part 2,
Chapters 4–9, highlighting the key issues, opportunities and challenges in
managing a total supply chain. These features have been further explored with
the current trends in Part 3. Now the key question is: how are these building
blocks interfaced or integrated to provide the synergy of managing total supply
chain as one unit? The processes in each building block are standardized or for-
malized by systems and procedures. The effectiveness of systems and proce-
dures can be achieved by using sales and operations planning (S&OP) and
performance management processes.
This chapter considers in the context of supply chain management the fol-
lowing three corner stones of systems and procedures:
1. Quality management
2. Financial management
3. Information and communication technology
Quality management
What is quality?
Quality has two levels, a basic level and a higher level. At the basic level com-
mon definitions ‘fitness for purpose’, ‘getting it right first time’, and ‘right
thing, right place, right time’ apply. (These definitions have all been so over
used that they are almost clichés.) An understanding of what we mean by basic
level and higher levels of quality can best be explained by illustration.
Consider a bus service. What as passengers are our basic requirements?
First, unless the bus is going more or less where we want to go, we would not
catch it. The second requirement is timing – usually we have a time frame by
which we judge a bus service. If we start work at 9 a.m. unless the bus gets us
to the office before 9 we would not catch it. Another consideration will be cost.
Therefore, the basic requirements in this example would be the route, the time
282 Total Supply Chain Management
and the cost, and depending on alternatives we would probably rank them in
that order.
A bus service could meet all these requirements, (right thing, right place,
right time, and right cost), but still not be a quality service. If the service was
unreliable, (sometimes late, sometimes early, sometimes did not keep to the
route) then we would not consider it a reliable service. But supposing the bus
met all our basic requirements, got us to work on time every time and at a rea-
sonable cost, but it was dirty, the driver was surly, the seats were hard and it
leaked exhaust fumes. Then although it met our basic requirements there is no
way we would describe it as a quality service.
In other words to meet our perception of quality there are certain basic
requirements that have to be met, and there are certain higher order require-
ments that have to be met. In this case we would expect polite service, a clean
bus, reasonably comfortable seating and certainly no exhaust fumes. A truly
high quality service would mean that the bus was spotlessly clean, had carpet
on the floor, and had piped music as well as all the other attributes. But no mat-
ter how comfortable the ride, how cheap the fare, unless the bus is going our
way we shall not be interested in catching it. To have your product described as
a quality product, the customer will expect higher level benefits. These higher
level benefits are what gives an organization a competitive edge, and often the
difference costs very little to achieve.
There are many different definitions and dimensions of quality to be found
in books and academic literature. We will present three of these definitions
selected from published literature and propose a three-dimensional definition
of quality.
One of the most respected definitions of quality is given by the eight quality
dimensions (see Table 17.1) developed by David Gravin of the Harvard
Business School (1984).
The above dimensions of quality are not mutually exclusive, although they
relate primarily to the quality of the product. Neither are they exhaustive.
• Performance refers to the efficiency (e.g. return on investment) with which the
product achieves its intended purpose.
• Features are attributes that supplement the product’s basic performance, for
example tinted glass windows in a car.
• Reliability refers to the capability of the product to perform consistently over its
life cycle.
• Conformance refers to meeting the specifications of the product, usually defined
by numeric values.
• Durability is the degree to which a product withstands stress without failure.
• Serviceability is used to denote the ease of repair.
• Aesthetics are sensory characteristics such as a look, sound, taste and smell.
• Perceived quality is based on customer opinion.
Systems and procedures 283
Service quality is perhaps even more difficult to define than product quality.
A set of service quality dimensions (see Table 17.2) that is widely cited has
been compiled by Parasuraman et al. (1985).
• Tangibles are the physical appearance of the service facility and people.
• Service reliability deals with the ability of the service provider to perform
dependably.
• Responsiveness is the willingness of the service provider to be prompt in delivering
the service.
• Assurance relates to the ability of the service provider to inspire trust and
confidence.
• Empathy refers to the ability of the service provider to demonstrate care and
individual attention to the customer.
• Availability is the ability to provide service at the right time and place.
• Professionalism encompasses the impartial and ethical characteristics of the
service provider.
• Timeliness refers to the delivery of service within the agreed lead time.
• Completeness addresses the delivery of the order in full.
• Pleasantness simply means good manners and politeness.
The list of quality dimensions by both Gravin and Parasuraman et al. are
widely cited and respected. However, one problem with definitions is that if
time permitted the reader will find several other useful definitions and dimen-
sions. Wild’s definition of design/process quality does provide a broad frame-
work to develop a company-specific quality strategy.
Nonetheless, one important dimension of quality is not clearly visible in the
above models: the quality of the organization. This is a fundamental corner-
stone of the quality of a holistic process and an essential requirement of an
approved quality assessment scheme such as EFQM (European Foundation of
Quality Management). Therefore, a three-dimensional model of quality has
been developed (Basu, 2004) as shown in Figure 17.1.
284 Total Supply Chain Management
Product
Specifications
quality
Project quality
Conformity Sustainable
culture
Process Organization
quality quality
Hierarchy of quality
With the subject of quality, like many management subjects such as marketing,
and strategic management, a number of technical terms have evolved. In some
cases rather than helping us to understand the underlying concepts or tech-
niques, technical terms tend to add a further complication to our understand-
ing. Often the terms used are given different connotations by different people,
the meanings become blurred, and terms become interchangeable. In this sec-
tion we discuss the various ways in which quality can be managed. We also
Systems and procedures 285
discuss the strengths and weaknesses of each method. For these reasons we
have developed a hierarchy of methods of quality management. Our hierarchy
approximates the evolution of quality management from simple testing to a full
total quality management (TQM) system.
Quality by inspection
Traditionally in manufacturing the concept of quality was conformance to cer-
tain dimensions and specifications, the cliché being ‘fitness for purpose’. Quality
control was achieved by inspection and supervision. Inspection is the most basic
approach to quality. The aim being for an inspector to detect, and if sufficiently
serious to reject before despatch if a product deviates from a set standard.
Inspection will at least provide the customer with an acceptable product. Quality
inspection is an expensive method of achieving a basic level of quality. It requires
the employment of people to check on the operators. Inspection and supervision
does not add value to a product, but does add to the cost!
The stage of production where the inspection takes place is important. If the
only inspection is at the end of the production line then, if deviations from the
standard are discovered at this late stage the cost of reworking could well dou-
ble the cost of the item. If a deviation from standard is not detected, the final
inspector is the customer, by which time it is too late. If the product is found to
be below standard by the customer, the manufacturer has the problem of put-
ting it right. Putting right could include the cost of scrapping the unit and giv-
ing the client a new one, or in extreme cases a total product recall with all the
costs and loss of consumer confidence that this entails.
Quality inspection at a more advanced level includes checking and testing at
various stages of production so that errors can be detected early and remedial
286 Total Supply Chain Management
action taken before the next stage of the process takes place. At a still higher
level of inspection materials are inspected on receipt and then probably tested
again before being drawn from the store. Of course all these tests and checks
take time and cost money. The cost is easy to quantify when the checks are car-
ried out by people whose prime job is to test and check the work of others.
It is our contention that when people know everything they do is subject to
testing and checking, then the onus is no longer on them to get the job right
first time and they come to rely on the inspector. We believe that the inspector
or supervisor will be conditioned to find a percentage of errors, after all that is
the main reason for employing inspectors. This attitude will be reinforced fur-
ther by an error percentage being built into the standard costs. Thus, a level of
error becomes accepted and is built into the cost of the product.
The costs of relying on inspection by people other than the operator are
therefore twofold:
1. A level of error becomes accepted as standard and is included in the price, and
2. Inspectors do not add value to the product. Inspectors are an added cost.
The next stage above quality inspection can be designated quality control.
Quality control
With quality control, the aim is not only to monitor the quality at various stages
of the process but to identify and eliminate causes of unsatisfactory quality so
that they do not happen again. Whereas inspection is an ‘after the fact’ approach,
quality control is aimed at preventing mistakes. With quality control, you would
expect to find in place drawings, raw material testing, intermediate process test-
ing, some self-inspection by workers, keeping of records of failure, and some
feedback to supervisors and operators of errors and percentage of errors. The end
aims are to reduce waste by eliminating errors and to make sure that the produc-
tion reaches a specified level of quality before shipment to the customer.
Quality assurance
Quality assurance includes all the steps taken under quality control and quality
inspection. It includes, where appropriate, the setting of standards with docu-
mentation for dimensions, tolerances, machine settings, raw material grades,
operating temperatures and any other safety quality or standard that might be
desirable. Quality assurance would also include the documentation of the
method of checking against the specified standards. Quality assurance gener-
ally includes a third-party approval from a recognized authority such as the
ISO (International Organization for Standardization). However, ISO accredita-
tion in itself does not suggest that a high level of quality has been reached. The
only assurance which ISO accreditation gives is that the organization does
have a defined level of quality and a defined procedure which is consistently
being met. With quality assurance one would expect to move from detection of
Systems and procedures 287
They, too, have a huge part to play in how the customer perceives an organiza-
tion. It is on the lower level that an organization must rely for the continuing
daily level of quality. Quality, once the culture of quality has become
ingrained, will be driven from bottom up, rather than achieved by direction or
control from the top. Management will naturally have to continue to be respon-
sible for planning and for providing the resources to enable the workers to do
the job. But, unless the factory operators, the telephone operators, the cleaning
staff, the sales assistants, the junior accounts clerk, and the van driver are fully
committed to quality, TQM will never happen.
TQM, however, goes beyond the staff of the organization – it goes outside
the organization and involves suppliers, customers and the general public.
Once a relationship has been built with a supplier, that supplier is no longer
treated with suspicion, or in some cases almost as an adversary. Instead of try-
ing to get the best deal possible out of the supplier, the supplier becomes a mem-
ber of the team. The supplier becomes involved in the day-to-day problems and
concerns of the organization and is expected to assist, help and advise. The sup-
plier becomes part of the planning team. Price and discounts will no longer be
the crucial issues, delivery of the correct materials at the right time will be the
real issues, and suppliers will be judged accordingly. Once a supplier proves
reliable, the checking and testing of inwards goods will become less crucial.
Ideally, the level of trust will be such that the raw materials can be delivered
direct to the operator’s work place rather than to a central store.
Consider the difference to your organization if the raw materials were
always there on time, were of the right quantity and quality, and were delivered
to the operator’s work place and not to a store; each operator knew the stan-
dards and got the job right first time every time; and so on right down the line.
Then the organization would not need anyone involved in checking anyone
else’s work. Supervisors and middle management would no longer be policing
each step of a job.
At the end of the process is the customer. TQM organizations are very cus-
tomer-conscious. As the supplier is regarded as part of the team so too is the
customer. This is more than just wishy-washy slogans such as ‘the customer is
always right’. This means really getting alongside the customer and finding out
exactly what they want. The ultimate is that the customer, like the supplier,
becomes part of the process.
triggers the raw material order for all the components required for the car
and also the customer’s order updates the manufacturing schedule for the
factory. Taiichi Ohno of Toyota says that his current project is ‘Looking
at the time line from the moment the customer gives us an order to the
point where we receive the cash. And we are reducing the time line by
removing the non-value wastes’.
What does this mean? It means no more raw material stockpiling, no
more stocks of finished goods, reduction in needs for capital, storage
space, and insurance, and it means that the customer is getting what she
or he really wants (such as colour, upholstery, sound system, engine size,
and countless other options as specified by the customer). Obviously, a
system such as the Toyota process does not, and cannot, make allowances
for mistakes. A system such as this relies on good planning by manage-
ment, quality designed into the product, well-trained workers who are
empowered to work as a team, suppliers who are trusted to supply when
required and who are also part of the team, an integrated computer sys-
tem, and as Taiichi Ohno says, the elimination of non-value wastes.
We are now then looking at a totally new type of organization: the old bureau-
cratic style of management, with the associated rules relating to span of control,
appraisal systems, and incentive schemes is simply no longer appropriate.
Instead, organizations have to be designed around the process. For example,
instead of having a centralized purchasing department, why could not the oper-
ator, or a group of operators on the shop floor, phone, fax or e-mail through the
daily order to the supplier (and for the materials to be delivered directly to
the line rather than to the store). If each group of operators around a process were
working as a team, why would a large central human resources department
be needed? Certainly, the operating team itself would not need a supervisor.
Maybe a team leader would be necessary to hurry management along and to
ensure that management planning was sensible. The aim here is not for the
front-line operators to be working harder but for them to take control and accept
responsibility for their operation. It does not mean fewer people turning out
more, but it does mean the elimination of several levels of management and it
does get rid of the matrix of responsibility for human resource and other ‘serv-
ice’ or staff departments as shown on the old-fashioned organization charts.
With fewer levels of management, communication becomes less confused, and
responsibilities (and areas of mistakes) become much more obvious.
For TQM to work, a company has to go through a total revolution. Many
people, especially middle managers, have to be won over. Workers, too, have
to want to accept responsibility. TQM will mean a change of culture.
The cost of TQM can be measured in money terms. The emphasis will be on
prevention rather than detection, thus the cost of supervision and inspection
will go down. Prevention cost will go up because of the training and action-
orientated efforts. But the real benefits will be gained by a significant reduction
290 Total Supply Chain Management
in failures – both internal (e.g. scrap, rework and downtime) and external
(handling of complaints, servicing costs and loss of goodwill). The total operating
cost will reduce over time (say 3–5 years) as shown in Figure 17.2.
Cost
Total cost
Prevention cost
Appraisal cost
Failure cost
Time
The adoption of a standard such as ISO 9000 (for further details see the
International Organization for Standardization) rather than streamlining an
organization might actually serve to increase the need for audits and supervi-
sion. ISO 9000 to this extent can therefore be seen to be contrary to the philos-
ophy of TQM. With TQM staff members are encouraged to do their own
checking and to be responsible for getting it right first time and the need for
supervision becomes almost superfluous. With ISO 9000, the standard method
will likely be set by management edict and, once set in place the bureaucracy
of agreeing and recording improvements may stultify creative improvements.
ISO tends to be driven from the top down and relies on documentation,
checks, and tests to achieve a standard, somewhat bland, level of quality assur-
ance. TQM on the other hand, once established, relies on bottom-up initiatives
to keep the impetus of continual improvement. However, as the Deming method
of TQM does advocate a stable system from which to advance improvements,
the adoption of the ISO 9000 approach will mean that there will be a standard
and stable system. To this extent, ISO 9000 will prove a useful base for any
organization from which to launch TQM.
As shown in Figure 17.3, ISO 9000 can be depicted as the wedge that prevents
quality slipping backwards, but the danger is it can also be the wedge that
impedes progress.
Notwithstanding the benefits of obtaining a standard stable system through
ISO procedures, it must be queried why a true quality company would need ISO
9000. If the customer or potential customer is not insisting in ISO accreditation,
then the time and effort (and the effort expended will be a non-recoverable cost)
makes the value of ISO to an organization highly questionable.
Systems and procedures 291
Continuous
00
improvement
90
Quality IS
O
00
90
ISO
Today, depending on whom you listen to, Six Sigma is either a revolution
slashing trillions of dollars from corporate inefficiency, or it’s the most
maddening management fad yet devised to keep front-line workers too busy
collecting data to do their jobs.
USA Today (21 July 1998)
It has been several years since the above statement was made. During this time
the ‘Six Sigma revolution’ has created a huge impact in the field of Operational
Excellence, yet conflicting views are still prevalent.
Let us evaluate the arguments for both sides. On a positive note, the success
of ‘Six Sigma’ in General Electric (GE) under the leadership of Jack Welch is
undisputed. In the GE company report of 2000 their CEO was unstinting in his
phrase: ‘Six Sigma has galvanized our company with an intensity the likes of
which I have never seen in my 40 years of GE’. Even financial analysts and
investment bankers compliment the success of Six Sigma in GE. An analyst at
Morgan Stanley Dean Witter recently estimated that GE’s gross annual benefit
from Six Sigma could reach 5 per cent of sales and that share value might
increase by between 10 and 15 per cent.
However the situation is more complex than such predictions would suggest.
In spite of the demonstrated benefits of many improvement techniques such as
TQM, business process re-engineering (BPR) and Six Sigma, most attempts by
companies to use them have ended in failure (Easton and Jarrell, 1998).
Sterman et al. (1999) conclude that companies have found it extremely difficult
to sustain even initially successful process improvement initiatives. Yet more
puzzling is the fact that successful improvement programmes have sometimes
292 Total Supply Chain Management
led to declining business performance causing lay offs and low employee
morale. Motorola, the originator of Six Sigma, announced in 1998 that its sec-
ond quarter profit was almost non-existent and that consequently it was cutting
15,000 of its 150,000 jobs!
To counter heavyweight enthusiasts like Jack Welch (GE) and Larry Bossidy
(Allied Signal) there are sharp critics of Six Sigma. Six Sigma may sound new,
but critics say that it is really SPC in new clothing. Others dismiss it as another
transitory management fad that will soon pass.
It is evident that like any good product ‘Six Sigma’ should also have a finite
life cycle. In addition, Business Managers can be forgiven if they are often con-
fused by the grey areas of distinction between quality initiatives such as TQM,
Six Sigma and Lean Sigma.
Against this background, let us examine the evolution of total quality
improvement processes (or in a broader sense operational excellence) from ad
hoc improvement to TQM to Six Sigma to Lean Sigma. Building on the success
factors of these processes the key question is: how do we sustain the results?
The authors have named this sustainable process as FIT SIGMA™ (see Basu
and Wright, (2003).
What is FIT SIGMA? Firstly, take the key ingredient of quality, then add
accuracy in the order of no more than 3.4 defects in 1,000,000. Now implement
this across your business with an intensive education and training programme.
The result is Six Sigma. Now let’s look at Lean Enterprise, an updated version
of classical Industrial Engineering. It focuses on delivered value from a cus-
tomer’s perspective and strives to eliminate all non-value added activities
(‘waste’) for each product or service along a value chain. The integration of the
complementary approaches of Six Sigma and Lean Enterprise is known as
Lean Sigma. FIT SIGMA is the next wave. If Lean Sigma provides agility and
efficiency, then FIT SIGMA allows a sustainable fitness. In addition, the con-
trol of variation from the mean (small Sigma ‘σ’) in the Six Sigma process is
transformed to company wide integration (capital Sigma ‘Σ’) in the FIT
SIGMA process. Furthermore, the philosophy of FIT SIGMA should ensure
that it is indeed fit for the organization.
Financial management
Historically, the relationship between financial management and operations
management has been like oil and water, ‘them and us’. The ‘quality move-
ment’ of the 1980s appeared to have encouraged some operations managers to
move away from involvement in costs and measurements. Some operations
managers, both in the manufacturing and service sectors took the stance that
cost and measurement were ‘internally focused’, the concern of the ‘bean
counters’, whereas the quality movement was externally customer focused.
But in fact this was not what the quality gurus such as Deming, Juran, Crosby,
Feigenbaum and Peters were saying. Their message was that measurement is
Systems and procedures 293
There are only four basic sources for an increase in working capital and like-
wise only four basic uses to explain a decrease in working capital, namely:
The key financial indices influencing the financial objectives of a business are:
Net profit
Trading margin 100
Sales value
Systems and procedures 295
Sales value
Asset turn
Capital employed
Net profit
Return on investment (ROI) 100
Capital employed
Operating ratios
The operating ratios are in the domain of Management Accounting for tactical
management and these ratios can be classed as follows.
1. Sales to capital: This ratio measures the efficiency of the use of cap-
ital. The higher sales per pound of capital the more effectively is cap-
ital being employed.
2. Cost of sales to stock and sales to debtors: These ratios help to assess
whether stock is too high or debtors are taking too long to pay. Our
example above shows that it would take 11 months at the current rate
of sales to sell all the stocks. Similarly, the debtors are taking on aver-
age 4 months to pay. Whether these examples show a poor situation
depends on the business and its terms of trade; at face value they
would certainly seem to be excessive.
3. ROI and return on sales: These ratios are widely used as measures of
efficiency and performance evaluation. In addition, wide use is made
of ROI to assess the validity of new projects. Most companies set a
minimum ROI rate that must be exceeded before a new project can be
proceeded with.
In spite of some recent criticisms, ROI has continued to be the most important sin-
gle index of the financial objective of a manufacturing business. Value-based man-
agement methodology is favoured by many companies today. One such
performance measure is EVA (Economic Value Added), which is a trademark of
Stern Stewart & Co. EVA accounts for the cost of doing business by deriving a cap-
ital charge. A positive EVA rating indicates that the company has created value.
296 Total Supply Chain Management
Often firms become so focused on earnings that they lose sight of the cost of gen-
erating those earnings in the first place. EVA has become a popular tool to which
the executive’s bonus may be linked. It is important to note (see Appendix 1) that
ROI and EVA are closely related as shown by the equation:
where WACC is the weighted average cost of capital and TCE is the total cap-
ital employed.
Hamel and Prahalad (1994) attacked managers obsessed with denominators
(capital employed). The right approach of manufacturing is, to identify high
leverage points of both increasing profits and reducing capital employed. Low-
cost manufacturing is a desirable manufacturing objective as long as the invest-
ment decisions are geared to longer-term requirements and the measures do not
affect the specified standards of quality, delivery and safety. The measures
indicated in the ROI improvement tree (Figure 17.4) have been covered in
other sections of the book, but it is useful to focus on a total picture of cost
advantages so that the inter-relationship between different elements and their
relative weight can be visualized.
6
ROI
Asset turn
Trading margin
5
Capital
Sales
4
Asset turn
3
40% ROI
30%
2
20%
0
0 5 10 15 20 %
Net profit %
Trading margin
Sales
For a given ROI, profit margin goes down with increased asset turn and vice
versa. However, when analyzed more closely by managing the improvement of
both numerator and denominator (i.e. operations improvement and asset man-
agement) the company performance can move to a higher ROI curve and retain
improvements in both profit margin and asset turn.
as the unit cost could go up due to constraints in site capacity and services.
As variety increases, unit cost of manufacturing may also increase due to tech-
nology cost, lower utilization of plant and increased overhead/infrastructure.
With flexible manufacturing variety can be essential to be competitive in seg-
mented markets. Manufacturing should in these cases accommodate variety by
incorporating higher flexibility of plant and operations. Variation is another
determinant of product cost. If there are unstable variations in sales demand,
supplier lead time and plant performance, then the planning effectiveness will
go down and buffers in stock, capacity and resources will be necessary.
Asset utilization
It is important that formal investment appraisal procedures and investment poli-
cies are in place. However, the rate of discounted cash flow (DCF) yield should
vary according to the type of investment as indicated in Table 17.5.
Evaluation should include all tangible benefits and intangible benefits. The
above table is indicative only to demonstrate the relative importance of invest-
ments. The actual limit of DCF yield is set by each company depending
on financing charges, depreciation rate for a capital asset and the life cycle of
the product.
Cost effectiveness
Cost cutting or cost reduction exercises, if they are panic driven, or ‘chairman’s
5 per cent reduction target’ will only give short-term results and will cause
imbalances and disruptions in operations. Other legitimate concerns will be the
negative effect on quality, innovation and customer service. And although
direct factory labour might account for only 5–15 per cent of the total ex-works
cost (see Figure 17.6) the overwhelming emphasis usually is given to the
reduction of labour cost. New and Mayer (1986) state,
Whole work study departments are maintained to control the direct labour
content of unit cost. Yet there are many plants that spend twice as much on
purchased materials as on direct labour that do not even attempt to meas-
ure purchasing performance realistically.
Systems and procedures 299
Gross profit
25% Labour
30%
Distribution 5%
Energy
20%
Total sales
Ex-works cost
Materials
55% Depreciation
25%
Repair
15%
Conversion
15% Other
10%
Accounting systems
It is vital that the company has a reliable accounting system in place to provide
fast and accurate cost information. The minimum requirements should be stan-
dard costing and budgetary control.
Some companies are moving towards activity-based costing (ABC), particu-
larly for supply chain management. The accurate cost information provided by
ABC can give a company a competitive advantage. However the experience of
western companies according to De Meyer and Ferdows (1990), suggests that
the implementation of ABC has not been successful, perhaps due to the histori-
cal inertia of standard costing. Any half-baked implementation could be more
harmful than useful.
1. IT and systems
2. e-Business
Systems and procedures 301
IT and systems
IT is rapidly changing and becoming more powerful. It will be a continuing
source of competitive advantages for manufacturers if used correctly. In 2007,
the personal computer (PC) on the desk of an average operations manager has
the capability of 1024 megabytes of main memory and 80 gigabytes of direct
access storage. Ignoring the technical jargon, most of us have on our desks
more computing power than the average £100 million a year manufacturing
plant had 12 years ago. This IT revolution is available to everyone and how a
company puts it to work will determine to a great extent its competitiveness in
the global market.
The rapid growth of IT has also created problems and challenges. Many sen-
ior managers of companies lack any detailed understanding of the complexity
of technology. They either follow the fashion (e.g. ‘no one was fired for choos-
ing IBM’) or they are discouraged by the cost of technology, or from a lack of
evidence of savings in a new field. When executives read about all the clever
things seemingly low-cost computer technology can do they feel frustrated
when the systems experts say, ‘It will take 3 years to develop the software’.
Most senior managers also feel lost in a blizzard of buzzwords.
Yet another issue is the implementation of systems to the benefit of
the users. When a company looks for an IT solution to a problem without
re-engineering the process, refining the existing database or training the end
users, the application is doomed to fail. Real disasters can be very expensive.
For example, the $60 million Master Trust accounting system for Bank of
America had to be scrapped because it could not keep accurate accounts.
Figure 17.7 shows a framework of IT strategy comprising three levels of
hardware strategy, software strategy and implementation strategy.
IT hardware strategy
New developments towards ‘open systems’ standards started in 1987 when
AT&T in partnership with SUN Microsystems introduced the Unix Open Look
operating system. This system was used by Wang, Oracle, Olivetti and Lucky
302 Total Supply Chain Management
Gold Star. Seven big computer companies led by IBM, Hewlett-Packard and
DEC formed the Open Software Foundation (OSF) and introduced in 1990
their own competing standard operating system using IBM operating systems
as core technology. Fortunately the interface standards of both competing stan-
dard operating systems do not differ significantly. However should there be a
further polarization of the two camps it is possible that the majority of compa-
nies will follow the Open Software Foundation Application Environment
Specifications (OSF AES) which operate IBM-AIX, DEC-Ultrix and HP-UX
operating systems.
There are good open standards such as ANSI 92 for a relational database
system which conforms to the SQL standards. The leading proprietary data-
base systems which conform to these standards include Oracle, Sybase,
Informix and Progress. In order to ensure the maximum level of portability, the
future direction of new software is likely to move towards the so called three-
tier architecture. For example, Tier I contains the user interface, Tier II is the
functionality layer and Tier III is the database layer.
With the rapid development of application tools a proven hardware policy
has been what is known as client–server computing. All ‘servers’ are open sys-
tem large or mini computers (e.g. IBM-AIX) and ‘client’ computers are largely
personal computers (PCs).
The benefits of standards include the creation of local area networks (LANs)
and wide area networks (WANs). A LAN can cover a large industrial complex
while a WAN can offer inter-site communications on a national or international
basis. In the early 1990s the companies were gradually migrating from previ-
ously popular network standards (such as PC LAN, Novell, Internet) to open
systems network such as NFS-based systems. However by mid-1990s Novell
started to regain the market dominance.
The hardware strategy should also include the capability of local hardware
support both by suppliers and the company’s own staff. The support capability
may influence the selection of hardware whether IBM, HP, DEC or SUN or
other. A sensible strategy is to go with the market leaders who are setting the
de facto standards.
‘Legacy systems’ are older IT systems installed on central mainframe hard-
ware and systems usually worked on one specific areas of supply chain such as
purchasing or inventory management. The ERP systems, on the other hand, are
supply chain IT systems that exchange information across all functions of an
organization or enterprise. There are several modules of an ERP system which
can be installed either stand alone or in interaction with other modules. Some
of the key modules are Finance, Purchasing, Master Production Scheduling,
Materials Management, Sales and Distribution, Supplier Management and
Human Resourced. ERP systems clearly hold major advantages over ‘legacy
systems’ in functionality, scope and flexibility of applications.
The shift of supply chain IT software systems from ‘legacy’ to ERP systems
has also created a major shift of the hardware technology platform from main
frames to client/server platforms. In a client/server architecture each computer
or process on the network is either a client or a server. Servers are powerful
Systems and procedures 303
IT software strategy
At the early stage of IT, applications software was limited to financial and
commercial areas. Now a company is faced with a bewildering array of soft-
ware ranging from design/process engineering, to manufacturing, to supply
chain, to administration. Versions of specific software and systems technology
will continue to change. Therefore it is vital that a manufacturing company for-
mulates a software strategy by careful planning.
The first step is to identify the areas of application depending on the activi-
ties size and priorities of the company. Figure 17.8 shows a framework of
application software in five key areas, namely financial administration, supply
chain management, factory administration, and ‘client’ workstation. The tradi-
tional computing modules of accounts and payroll are in financial manage-
ment. The biggest area of application is in supply chain management starting
Client workstation
Word processing, spreadsheets, graphics, e-mail, conference
conference (e.g. Lotus Notes). During the late 1980s many manufacturing com-
panies searched for one turnkey package and invested in what is known as com-
puter-integrated manufacturing (CIM) with limited success. If a company
follows an ‘open systems’ policy for hardware and relational database then dif-
ferent proprietary software packages stand a better chance of being interfaced
and database information can be shared in a client–server environment.
Probably their most significant advantage is in the enterprise wise view of a
business that ERP (enterprise resource planning) systems allow. However, ERP
systems have a number of disadvantages. Apart from being costly and difficult
to implement they are usually inflexible and lack integration to the systems of
other organizations within a value chain. This means that only some benefits
from networking technologies are captured.
The software policy should include standard packages for the company in
specific areas of application. The selection of software should conform to the
key criteria of user requirements, systems requirements, supplier profile and
software support. The earlier examples of applications software were relatively
inflexible and the approach was ‘systematize the customer’ rather than ‘cus-
tomize the system’. Many disillusioned customers attempted to build their own
software and burnt their fingers in the process. In the present climate the soft-
ware tools have become flexible, the IT is advancing rapidly, competitive expert
support is provided by specialist software houses and thus it is prudent to buy
appropriate software rather than to develop your own (see Figure 17.9). The
software should conform to open systems requirements and the supplier should
be both reputable and locally available for support. The company should also
build up its own IT support staff, especially a ‘user support’ service.
There is a major conflict in developing a software strategy between a ‘best
of breed’ approach and a ‘single integrator’ approach. In a ‘best of breed’
Support/upgrade
Implementation
Software
Hardware
Cost
Package Bespoke
Time
Implementation strategy
The success of an IT strategy depends as much on the selection of appropriate
hardware and software as on their implementation.
Similar to a company-wide programme such as TQM, the implementation
must have top management commitment. This should be reflected in setting up
a project team comprising members from users (marketing, logistics, manufac-
turing, accounts) and business systems. The project manager is usually chosen
from the main user group. For example, if the application software is for sup-
ply chain management then the project manager should ideally have a logistics
background.
The project team should receive both technical training (e.g. Unix, Oracle)
and operational training (functionality of the software). The project manager
then prepares a clearly stated action plan with target dates and resources for
key activities. The plan must include review points and steering by the mem-
bers of the board.
It is essential that the existing procedures and processes are thoroughly and
systematically reviewed. There are various tools for analyzing the flow and
requirements of the existing systems. SPC techniques are widely used.
Nowadays some companies are using computer-aided software engineering
(CASE) tools to analyze the structure, database and flows of the existing
process and compare them with the proposed software for implementation.
With the success of the BPR approach of Hammer and Champy (1993), some
companies are using an IT application as a catalyst and applying the principles
of BPR to re-engineer the total business processes of the company. The
approach should depend on the depth and breadth of the application systems,
but there is no doubt that the existing systems must be reviewed and refined
when implementing a new system.
One important rule is that the user should not try to customize the system at
the outset. Often after acquiring experience on the new system the user may
find that the need and nature of customization could be different. However it is
necessary that a ‘prototype’ is tested for a new system using the company’s
own data.
After the training of the project team the training programmes should
be extended to all potential users of the system. The training features should
contain both cultural education to establish acceptance by everyone concerned
and operational training to understand the functionality and operations of the
new system. Training documents are designed specifically for the users’ needs.
306 Total Supply Chain Management
The next stage is the data input and ‘dry run’ of the new system in parallel with
the existing system before the system goes live. There are benefits of forming
users’ group for exchanging experience with users drawn from within and
from outside the company.
e-Business
It would appear, from today’s press, that all business problems can be solved
by e-business whilst, at the same time, they blame all business failures and any
economic downturn on e-business as well! Given the volume of news items, it
may appear that defining ‘e-business’ is to state the obvious. Or is it?
It is apparent that very often all e-business is perceived as a collection of
pure play dot.com organizations. Such an ‘umbrella view’ means the distinc-
tions between e-commerce, e-marketplace, and e-business are poorly inter-
preted. For example, the most popular perception of e-business is on-line
shopping – ‘workaholics’ pointing their browser at Amazon.com to order an
emergency present because they forgot someone’s birthday again.
Let us clarify some items. e-commerce is the transactional electronic
exchange for the buying and selling of goods and services.
The ‘e-marketplace’ is the on-line intermediary for electronic transactions
between buyers, sellers and brokers. This is also referred to as the Digital
Marketplace, Portals or Hubs.
Early opportunities were observed in the enabling infrastructures and
Internet-based networks (Internet, Intranet and Extranet), replacing existing
telephone, fax and EDI networks. The early success of e-procurement vendors
(e.g. Commerce One, Ariba, Info Bank) was well received. The old suppliers
suffered many problems including that of authorization with no conformity of
systems between business partners. It was like having different telephone sys-
tems for each of the people to whom you speak. This has been transformed by
Trading Portals that interconnect the contents of different suppliers and mak-
ing them usable by all buyers.
In a recent report, Basu (2003) the complex web and infrastructure of e-business
applications have been simplified as shown in Figure 17.10 to illustrate the
‘building blocks’.
There are five key types of e-business application systems that enable
businesses to trade and conduct electronic transactions or communications.
These are:
Systems integrators
Enterprise application integration and middleware
Technology platforms
e-Commerce solutions
The buy-side applications of e-commerce, initially targeted at larger buyers,
enable companies to levy across new or existing vendors. Solutions are increas-
ingly aiming at integrating ERP systems with the organization’s own suppliers
and customers. The new application developers are utilizing the opportunities
created by the lack of integration of ERP systems with other Internet systems
and outside companies.
Initially the buy-side application vendors (including Commerce One and
Ariba) were driven by pure play solutions for the purchase of MRO (maintenance,
repairs and operations) or indirect goods. The huge potential of e-procurement
offered up by ‘pure companies’ has been recognized and seized by established
ERP vendors such as SAP and Oracle, and software vendors like Netscape and
Datastream.
The buy-side vendors, whether pure play or not, are focussing on packaged
buy-side application suites and looking to move into the direct procurement
area. This requires a greater degree of understanding of business processes in
specific industries and rigorous validation of the data processing.
The sell-side application vendors are looking to provide services content man-
agement and transaction processing. Hence, there are some sub-categories of
308 Total Supply Chain Management
ERP applications
Internet technology has certainly enhanced the collaborative business culture
by enabling on-line transparent information and transactions. The company-
centric enterprise application vendors (including SAP, Oracle, J D Edwards
and PeopleSoft), are now building partnerships or alliances with supply chain
vendors (e.g. Manugistics, i2) and looking to extend their customer relation-
ship applications and e-commerce solutions out into the web.
CRM solutions
It is fair to state that most businesses regard the retention of customers as an
important goal and therefore the criteria of CRM are not new for most enter-
prises. However, the collaborative Internet-based network has enhanced the
need for customer intimacy and personalization. A number of software solu-
tions have been developed (e.g. Siebel, Vantive) to provide some powerful
holistic functionalities including:
SCM solutions
The emerging dot.com companies may be ‘fireflies before the storm’ (Lou
Gerstner, IBM), but most companies now recognize that the Internet has a pro-
found effect on supply chain performance. The key issues of e-supply chain
Systems and procedures 309
have been covered in more detail in Chapter 13. Applications that fall into this
category are essentially decision support software packages for optimizing
multiple levels of demands and supply in the global supply chain.
A new area of CPFR (Collaborative Planning Forecasting and Replenishment)
for key stakeholders of the total supply chain has emerged. As we discussed in
Chapter 12 (also see Chapter 14), in CPFR data and process model standards are
developed for collaboration between suppliers and an enterprise with proscribed
methods for planning (agreement between the trading partners to conduct busi-
ness in a certain way); forecasting (agreed to methods, technology and timing for
sales, promotions, and order forecasting); and replenishment (order generation
and order fulfilment). These solutions take into account the constraints of trans-
portation, supply capacity and inventory requirements. The ultimate objective is
order fulfilment within the time and cost acceptable to customers.
The leading vendors’ niche in the market, (e.g. i2 and Manugistics), is being
challenged by ERP vendors such as SAP, Oracle and J D Edwards.
Technology platforms
Technology platforms are supported by two groups of vendors. Hardware tech-
nology is provided by established computer companies (viz. IBM, HP, Compaq
310 Total Supply Chain Management
and SUN). The other group supporting network technology comprises the
telecommunication operators (e.g. BT, MCI, France Telecon, Deutsche Telecom,
AT&T) and infrastructure companies (e.g. CISCO, EXODUS).
Technology companies are forming strong partnerships or alliances to pro-
vide end-to-end technology solutions especially to SMEs. Examples include
the partnership deals between Compaq and Cable and Wireless as well as
SUN’s alliance with Oracle.
TCP divides the data into small ‘packets’ adding information that allows the
receiving computer to assure undamaged transmission. IP puts end ‘address
labels’ on each packet. HTML or Hyper Text Markup Language is the TCP and
XML or eXtensible Markup Language allows the dynamic logging of text in
documents. This enables internal systems at the customer and the marketplace
to send machine readable messages to each other. XML is hailed as the ‘lingua
franca’ for data transfer in the cyber realm. The flexible formats of XML offer
a transition from EDI fixed formats to self-identifying data.
System integrators
The final piece of the e-business ‘building block’ is the art and science of
pulling together all elements of an e-business project and making it work. The
lower end of the market for SMEs and startup companies has been addressed
by ASPs working together with hardware vendors (IBM, HP, Compaq) and
software vendors (Microsoft).
However in a multi-functional, multi-site large application business it is neces-
sary to redesign the way they work in terms of both processes and culture in order
to gain sustainable benefits from e-business. This requires not only the integration
of IT systems between businesses but also process improvement and continuous
education. There is a large gap between software functionality and the existing
business process. Furthermore, the number of users in an e-business project is
many times more than those expert users of an ERP application. Thus the chal-
lenge on the shift of culture is much greater in implementing the business.
Summary
This chapter has covered quality management, financial management and IT.
We are not suggesting that we have written a complete accounting text book or
the definitive work on IT. Far from it.
Systems and procedures 311
With quality management we have however gone into greater depth. Quality
management is not a discipline restricted to one body of knowledge or expertise.
Quality management is for everyone in the company to know and to under-
stand in detail.
We have shown quality management has three dimensions – design quality,
process quality and organization quality. Furthermore quality is basically what
customer wants and it operates at two levels – basic requirements of specification,
time and cost, and higher level requirements covering after delivery service
and customer focus issues. We accept quality has a price but the cost of not per-
forming can be unknown and is probably unknowable.
We also discussed a hierarchy of quality methods ranging from inspection at
the end of the process, to no inspection by supervisors and the reliance on sup-
pliers, and each worker in the process to get it right first time, every time. For
such a bold approach to be viable – for example no supervisors, no inspectors –
workers must be empowered. But more than that, they must want to be empow-
ered, and managers must believe and trust. For most companies this is a desirable
goal but probably not something to be attempted overnight!
We also covered ISO certification. We believe that many people see ISO as
a goal in itself. We say ISO certification may be a step on the way to TQM but
it is only a small and expensive step. We suggest that a true TQM company
does not need certification.
With financial management we introduce key concepts and ratios. Unless the
factory manager understands these ratios he or she will always be at the mercy
of the accountants. The ratios are explained simply, and illustrated with easily
understood examples. If you have some accounting knowledge, do not skip this
section, take 5 minutes to work through the examples and consider how they
apply to your organization.
Some time is spent on ROI and some time on cost cutting. Both these areas
are of particular concern to the factory manager. ROI can be used to prevent you
getting much needed equipment. Cost cutting, if applied 5 per cent across the
board, will inevitably hit the factory the hardest. Other sections probably do
have some slack or spare capacity but does your factory? It is important that the
factory manager understands ROI and that the factory manager can defend him
or herself against ill judged cost cutting exercises.
For IT we have taken a more general approach. This section is equally appli-
cable to all functions of the organization. The key issue in any new IT system is
knowing what you want, going with a system with local support, and initially
making do with off-the-shelf software. We have not discussed uninterrupted
power supply, disaster recovery, the need to back-up files and so on. All these
issues are nuts and bolts and should be second nature to your IT manager. This
section was not written for the professional IT manager. It was written to give
the average manager an understanding of the strategy of IT implementation. We
have also addressed the opportunities and challenges emerging from e-business
technologies and powerful software solutions such as SAP R/3, i2 and Siebel.
We have also discussed the shift of hardware platform from mainframe to
client/server platforms and the conflict in the software strategy between ‘best of
breed’ versus ‘single integrator’.
312 Total Supply Chain Management
During the last 10 years we have experienced the growth of e-business appli-
cations and enabling infrastructures that have rapidly increased productivity by
streamlining existing business processes. We have also seen over the last few
years some dramatic failures of pure play e-commerce companies.
The time has come to take a fresh look of the Internet technology. We need
to move away from the rhetoric of ‘dotcom revolution’ and to see the Internet
as a powerful enabling technology that can be used in almost any business and
part of almost any strategy. The key question now not whether to deploy the
Internet technology, but how to deploy it.
With a good understanding of the scope the systems and procedures dis-
cussed in this chapter supply chain managers should be better equipped to inte-
grate the building blocks of supply chain to provide, improve and sustain
supply chain performance.
18
Sales and operations
planning
Introduction
Alongside Systems and Procedures (Chapter 17) and Performance Management
(Chapter 19) sales and operations planning (S&OP) is an integrator of the
building blocks of total supply chain management. Systems and Procedures
provide the tools, Performance Management offers the metrics and S&OP
delivers the processes to make it happen. With S&OP the general manager and
his or her staff can operate their supply chain more effectively, set attainable
objectives with a single set of data for all departments, communicate approved
S&OP over a planning horizon, measure performance and achieve target results.
The data from the business plan is converted into sales, inventory and production
plans with formal discussions and agreement of each departments at appropri-
ate stages. All key managers and staff are involved in the process but not at the
same meeting. Thus, S&OP provides both effective control over company’s
operation spanning all the building blocks of total supply chain and acceptance of
staff in all departments. S&OP and its hybrids are also known by other names
in different organizations, such as Sales Inventory and Operations Planning
(SIOP), Senior Management Reviews (SMR), Integrated Business Management
(IBM) and Collaborative Planning Forecasting and Replenishment (CPFR).
In this chapter, we cover the characteristics, applications and benefits of
S&OP under the following headings:
• Background to S&OP
• Definition
• Key steps of S&OP
• S&OP in service organizations
• Collaborative planning forecasting and replenishment
• Shift in performance criteria
• Benefits of S&OP
Background to S&OP
The classical concept of S&OP is rooted to the MRPII (manufacturing resource
planning) process. In the basic S&OP, the company operating plan (comprising
314 Total Supply Chain Management
Definition
The traditional S&OP is an SMR process of establishing the operational plan
and other key activities of the business to best satisfy the current levels of sales
forecasts according to the delivery capacity of the business.
Sales and operations planning 315
Dick Ling, almost the founding father of S&OP defines sales and operations
planning as a process, rather than a system, says it is ‘The process that enables
a company to integrate its planning within the total company’. The outcome of
the process is the updated operation plan over 18 months or 2 years (the ‘plan-
ning horizon’) with a firm commitment for at least 1 month.
The process is data driven. A report for each product family is prepared for
the planning horizon and it is usually divided into up to five sections contain-
ing ‘a single set of numbers’ for Sales Plan, Production Plan, Inventory,
Backlog and Shipment.
Simplification
Most businesses are complex and generate a mass of data at the operational
level in terms of the number of SKUs (stock keeping units), materials and
resources used. For example, the Financial Manager wants the numbers in dol-
lars, the Marketing Manager expects numbers in SKUs, the Manufacturing
Manager like to plan by tonnage while the Logistics Manager prefers the num-
bers to be in terms of cases or pallets. A model that attempts to flex each one
of these becomes too unwieldy. Projecting out 2 or more years at this level of
detail for each unit is not a problem for the computer; we now have access to
more than enough computing power to do this. The difficulty is in analysing,
understanding and evaluating the mass of output that such an approach gener-
ates. Companies that have tried doing it this way have found it virtually impos-
sible to interpret the results. Therefore, we need a single set of numbers
understandable and usable by all departments of the supply chain.
Forecast accuracy
The nature of the S&OP means that it needs a planning horizon that stretches well
beyond the MPS (master production scheduling), usually between 18 months
316 Total Supply Chain Management
and 2 years but sometimes more depending on the nature of the business.
Because of the rate at which forecast accuracy deteriorates with time, any fore-
cast produced at the SKU level becomes unusable as the accuracy is simply too
low to be of any use.
These potential problems are overcome by:
Execution
Performance management
Above all demand is the crucial issue, and as future demand can never be cer-
tain there should be a formal mechanism of forecasting using the best combin-
ation of historical models, past results from promotions, data from customers
and market intelligence. Likewise, the inventory data system has to be up-to-
date and accurate with details of raw materials (RW) on hand, goods on order,
lead times and finished goods on hand.
Only with up-to-date information, and with the continuous review and man-
agement of information, can an organization hope to achieve a balance of
resources and stocks of inventory to meet planned service levels. The master
planning and production scheduling process therefore has to be continuously
monitored and updated to ensure that this occurs.
The master production plan or master schedule is at the heart of MRP where
both the timing and quantity of orders are determined from offsetting from the
current stock the demand during the lead time to meet the master production plan.
The next stage is to follow a rough-cut capacity planning process to assess
to what extent the capacity of manufacturing facilities could meet the master
schedule. The feedback loop at this level tests the master plan against problem
318 Total Supply Chain Management
areas such as known bottlenecks and other critical resource areas. Often, as this
is a short- to medium-term approach, action has to be taken to make the best use
of existing resources rather than to add extra long-term resources. The company
should decide which alternative to follow if the existing resources are not
adequate, for example review the schedule, increase resources, work extra
shifts, delay maintenance, outsource to third parties and so on. With computer
systems it is relatively straightforward to simulate using ‘what if’ scenarios to
evaluate alternative courses of action.
Having established that the resources are sufficient, or having adjusted the
plan to fit the resources, then the next step is the detailed MRP and the detailed
capacity requirements planning for day-to-day operations. This stage includes
the production of detailed bills of materials for each product or batch of prod-
ucts. With the revised master schedule for each product and for each SKU and
bills of material for each SKU, the materials required for each item of raw
materials (RM) and packaging materials (PM) are then matched with the
current inventory levels to derive the additional procurement requirements.
The requirements are modified, if required, after comparing with the detailed
capacity planning process. The execution of the planning process then com-
mences with the final production scheduling and purchasing (supply planning)
processes.
We have outlined a generic description of the MRPII process. There are of
course variations – more significantly between batch production processes and
continuous production processes and between so called ‘push’ or ‘pull’
demand systems. With the ‘push’ system stocks of materials and of finished
goods are used to ensure maximum plant capacity utilization by having level
production. The ‘pull’ system is driven by customer orders and JIT principles
which can result in some under utilization of capacity. It is said that JIT
requires greater flexibility and reliability of plant plus a multi-skilled work-
force. In its simplistic form JIT is reactive (demand pull), whereas MRPII can
be described as proactive. MRPII looks forward and determines what will be
needed to achieve a desired output date. Internally MRPII is a push system;
inventory is driven through the process by the schedule. Thus, customer
requirements are linked to the resources and materials necessary so as to pre-
cisely meet a JIT delivery date. From a customer’s point of view it could be
argued that as long as the goods arrive on time and meet the specifications,
the system used by the manufacturer is irrelevant!
The process has been developed and applied primarily for manufacturing
organizations. The key members of all departments, such as R&D, Marketing,
Sales, Logistics, Purchasing, Human Resources, Finance and Production, par-
ticipate in the process but not at the same meeting. S&OP addresses the oper-
ations plan that deals with Sales, Production, Inventory and Backlog and thus
it is expressed in units of measurements such as tonnes, pieces, etc. rather than
dollars or euros. The operation plan is reconciled with the business plans or
budgets which are expressed in terms of money.
The S&OP or Senior Management Review process has been proven to be
a key contributor to sustaining the performance level achieved through a TQM or
Sales and operations planning 319
Six Sigma programme (Basu and Wright, 2003, p. 97). The S&OP agenda, in
addition to its main focus of establishing the operation plan, contains the
reviews related to performance and key initiatives. This provides an effective
platform for senior managers of all functions to assess the current performance
and steer the future direction of the business.
Key steps
With the above backdrop we can now describe the key steps of the S&OP
process.
Figure 18.2 shows the five steps in the S&OP process that will usually be
present and this process can be adapted to a specific organization requirement:
2. Demand
planning
1. New product
planning
3. Supply
review (MPS)
4. Pre-S&OP
5. S&OP
• New product review (Step 1): Many companies follow parallel projects
related to the new products in R&D, Marketing and Operations. The pur-
pose of this review process in Step 1 is to review the different objectives of
various departments at the beginning of the month and resolve new product
related assumptions and issues. The issues raised will impact upon the
demand plan and the supply chain at a later stage of the process.
• Demand review (Step 2): Demand planning is more of a consensus art than
a forecasting science. Demand may change from month to month depend-
ing on market intelligence, customer confidence, exchange rates, promo-
tions, product availability and many other internal and external factors. This
review at the end of the first week of the month, between Marketing, Sales,
IT and Logistics, establishes agreement and accountability for the latest
demand plan identifying changes and issues arising.
320 Total Supply Chain Management
• Supply review (Step 3): In the current climate of increasing outsourcing and
supply partnership, the capacity of supply is highly variable and there is a
need to ensure the availability and optimization of supply every month. This
review, usually on the second week of the month, between Logistics,
Purchasing and Production, establishes production and procurement plans
and raises capacity, inventory and scheduling issues.
• Reconciliation review (Step 4): Issues would have been identified in previ-
ous reviews of new products, demand and supply. The reconciliation step
goes beyond the balancing of numbers to assess the business advantage and
risk for each area of conflict. This review looks at issues from the business
point of view rather than departmental objectives. This is also known as the
pre-S&OP Review and its aim is to minimize issues for the final S&OP
stage.
• Senior management review (Step 5): Senior Mangers or Board Members,
with an MD or CEO in Chair, will approve the plan that will provide clear
visibility for a single set of members driving the total business forward.
The agenda (see Table 18.1) includes the review of key performance indicators,
business trends of operational and financial performance, issues arising
from previous reviews and corporate initiatives. This is a powerful forum to
adjust business direction and priorities. This is also known as the S&OP
review.
In each process step the reviews must address a planning horizon of 18–24
months in order to make a decision for both operational and strategic objec-
tives. As shown in the example below the demand forecasts of product groups
1. Sales
2. Stock
3. QA release
4. Production
Month 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 11 12
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul
SALES
Budget 500 500 500 525 600 600 600 550 550 525 525 525 525 525 525
Latest Forecast 500 400 450 400 500 400 500 400 500 400 500 500 500 500 500
Actual
STOCK
Target 1250 1350 1300 1400 1300 1400 1300 1400 1400 1500 1500 1500 1000 500 0
Projected 956 556 106 294 794 1194 1694 2094 1006 606 1906 1406 1806 1306 806
Actual
QA RELEASE
Planned 0 0 0 0 0 0 0 0 3600 0 1800 0 900 0 0
Actual
PRODUCTION START
Planned 0 0 0 0 0 0 3600 0 1800 0 900 0 0 0 0
Actual
A key feature of S&OP emerging from the above five steps is that S&OP is
not only a driver in a MRPII system, it acts as an integrator of all building
blocks of supply chain and all functional departments of the organization.
As shown in Figure 18.3, S&OP spans across all departments and key depart-
mental plans at the aggregate level are embedded in S&OP. An updated aggre-
gate new product plan is reconciled with the total sales demand plan. These are
then communicated by appropriate review meetings to manufacturing and
finance departments, which offer ways to support it by reconciling them with
aggregate finance plan and supply plan.
S&OP
Detailed
Resource
Marketing materials
planning
capacity,
planning
Execution Execution
Execution
It is also important to note that meetings of five key steps (viz. new product
planning, demand planning, supply review, pre-S&OP and S&OP) support
the MRPII processes as shown in Figure 18.4. For example, demand manage-
ment process is supported by new product planning meeting and demand
planning meeting. Supply review meeting supports and establishes MPS
and subsidiary manufacturing processes are supported by weekly and daily
meetings.
As shown in Figure 18.5, the key S&OP meetings in five steps are conducted
each month in successive weeks and are supported by other important business
meetings on annual, quarterly, weekly and daily schedules. The visibility of
these meetings must not be construed as an indication of ‘too many meetings’
of talking shops. On the contrary these are aimed at cascading the communica-
tion process across the organization to arrive at rapid decisions based on quan-
titative data understandable and usable by all stakeholders.
324 Total Supply Chain Management
Processes Meetings
Daily production
Shop floor control /
co-ordination
routing
meeting (PCM)
Performance 5. S&OP
measurement meeting
Annual
Strategic review
Quarterly
Business review
Monthly
New product planning meeting 1st week
Demand planning meeting 1st week
Supply review (MPS) meeting 2nd week
Pre-S&OP meeting 3rd week
S&OP Meeting 4th week
Weekly
Vendor scheduling
Production scheduling
Daily
Production co-ordination meeting
MPS/DRP meeting
• Transfer of office
• Rationalization of factory and warehouse
• Corporate Lean Sigma programme
• Merger of GlaxoWellcome and SmithKline Beecham
The second and third factor of applying ERP relate to resource planning. Every
service company has customers, demands, in-house resources and suppliers
and therefore requires resource planning to deliver an effective customer service.
We call this operations resource planning (ORP) as illustrated in Figure 18.6.
Business planning
Top
S&OP
management
planning
F
Resources
OK? No E
Yes E
Forecast status Demand planning
Operations D
management Product status Master scheduling
planning B
Capacity status Capacity planning
A
Planning
OK? No C
Yes
K
Purchasing
Operations
management Shop floor control
execution
Performance measures
It is evident from Figure 18.6 that although ORP is not as detailed as MRPII
the key steps of the process are similar. From the business plan, an S&OP
which covers key products and resources needed to deliver the business plan.
The monthly S&OP meeting by senior managers approves the master operations
plan. The operations team will review the product portfolio, supplier status and
the capacity of own resources and ensure that purchase orders are raised to procure
appropriate resources or services from suppliers. If the capacity of own resources
are adequate then an internal control document for the customer order is
processed. But a partnership with customers and with suppliers can and will
achieve very obvious benefits to all. As a result of such a radical change, each
of the service provider, the supplier and the customer achieve benefits in:
• Set service and supply policies (e.g. what should be the maximum
time that a customer is allowed to queue).
• Tighten forecasts by regularly reviewing that factors that drive demand
volatility (e.g. promotion and pricing) and using forecast tools.
• Use analytical models to guide executives in balancing the trade offs
between resources and customer service.
• Communicate across functions by formal review meetings.
• Track key metrics (e.g. agent utilization, number of processing errors,
etc.).
Five years ago, sales people at Whirlpool said the company’s supply
chain staff were ‘sales disablers’. Now, Whirlpool excels at getting
the right product to the right place at the right time – while keeping
inventory low. What made the difference?
VP Global Supply Chain, Whirlpool 2004
One of the key factors in the turnaround of Whirlpool’s supply chain was
the roll out of a new S&OP process. Whirlpool Corporation is a global
manufacturer and marketer of major home appliances, with annual sales
of over $13 billion, 68,000 employees, and nearly 50 manufacturing and
technology research centres around the globe. With the head office
based in Michigan the company markets Whirlpool, KitchenAid,
Brastemp, Bauknecht, Consul and other major brand names to con-
sumers in more than 170 countries.
The old planning environment of Whirlpool was inadequate and plan-
ning tools did not go far beyond Excel spreadsheets. With the introduc-
tion of the S&OP process, the company now has the ability to pull
together the long- and short-term plans of marketing, sales, finance,
logistics and manufacturing and produce forecasts that all participants
could base their operation plans on.
The next step of Whirlpool was to push their forecasting capability in
the global supply chain further by implementing CPFR process. With
CPFR the company can use i2 software supported by a web-based net-
work to share their forecasts with trading partners (such as Wal-Mart and
Sears) and collaborate on the exceptions. Within 30 days of the launch of
CPFR the forecast accuracy error was cut from 100 to 45 per cent. To put
in perspective, a one-point improvement in forecast accuracy across the
board reduced the total finished goods position of the company by sev-
eral million dollars.
Adapted from Slone (2004)
say that both the business model and the performance metrics were site-
centric or at best confined within the company or enterprise. Although the
need for externally focused performance metrics from the perspective of a
customer or an external supplier was identified unfortunately in most com-
panies metrics were not identified, or if identified not implemented beyond
mere lip service.
With web-based technologies now accelerating it is becoming imperative to
rethink the selection and implementation of the external metrics. This shift is
not only in the measurement criteria but also in the mind-set of business prac-
tices. Collaboration requires a capacity to ‘work in association, sometimes,
with an enemy’ and does not achieve its business success at the competitor’s
expense. Table 18.3, adapted from Basu (2001), summarizes some specific
areas where performance criteria have shifted along with changes from the
enterprise-centric business to a collaborative supply chain.
1. Financial
2. Customer
3. Internal processes
4. Learning and growth
332 Total Supply Chain Management
Benefits of S&OP
The quantifiable benefits of S&OP and CPFR in increasing customer service
and sales and reducing inventory levels have been well reported and some of
these have been shown earlier. Intangible benefits are perhaps more significant
because S&OP, properly established, provides a level of integration between
the short-term operational plans and the long-term business plans allowing
multi-functional managers and trading partners to simultaneously evaluate
risks and opportunities. Although S&OP may not provide a complete solution
in it highlights uncertainties for investigation. If uncertainties it cannot be
removed, at least information for the decision-making process is provided and
alternative courses of action can be compared.
Some of the major intangible benefits of S&OP are:
Summary
In this chapter, we have described the need of a company-wide data driven
process, such as S&OP led by the top management to integrate all the building
blocks of the supply chain and to ensure sustainable customer service at an
appropriate cost and quality of products or services. The process includes a
single set of data over a planning horizon of around 2 years, for all functions,
such as Marketing, Purchasing, Manufacturing, Logistics and Finance. There is a
clear distinction between the S&OP process and an S&OP meeting. The process
involves data preparation and then review in a series of meetings in progressive
steps (e.g. new products planning, demand planning, supply review, pre-S&OP
and S&OP) and an S&OP meeting is part of the S&OP process.
Although its origin is in MRPII an adapted version of S&OP can be, and has
been, applied in service organizations to achieve remarkable benefits in the
supply chain. A service organization is likely to have a business plan, a sales
334 Total Supply Chain Management
forecast, a capacity plan for resources and above all customers and suppliers,
thus an appropriate S&OP process is possible.
The extended supply chain supported by e-supply chain network and CPFR
systems can only be effective if the S&OP process of the OEMs also include
key suppliers and customers. The visibility and instant access of supply chain
data and targets by stakeholders will only be more productive when the plans
and their exceptions are reviewed and agreed as part of the S&OP process.
Beginning the S&OP process requires a significant effort of all departments
in managing initial education, self-assessment, data preparation and schedul-
ing meetings. The initial meetings are likely to expose two problem areas.
First, the format, timing and accuracy of data will take a few cycles to become
stable. Second, managers will be defensive when the performance targets in
their departments are not achieved. Over time data accuracy will improve and
the finger pointing and excuses will gradually disappear. It is therefore sensible
to start the monthly cycle meetings at an early scheduled date than waiting for
data to improve. Whenever a forum is operated in a positive manner with top
management leadership continuous improvement will follow.
19
Supply chain performance
Measures of performance
From the supplier of the product or service the specification, cost and time are
measured but with a different perspective, that is:
• Time: What is our percentage for on-time delivery and how long do we keep
the customer waiting before we serve them or answer their queries? Are
customer queues too long and are we losing business?
Resource utilization
Resource utilization is measured by the operations manager in terms of efficient
use of time and cost. Resources consist of:
• People
• Equipment and machines
• Vehicles
• Space
• Materials
• Inventory (input material and components, work in progress, output stocks)
• Information technology (IT)
Within the organization there will be a myriad of specific measures and areas
of measurement. For a good deal of the 19th and for the 20th century, generally
accountants were seen to be the conduits of information for performance meas-
urement. The importance of financial reports and measurements contained in
reports cannot be denied. Financial measures are listed in Table 19.1.
For all of the above the emphasis is on sales revenue and profit, and accord-
ing to Wild (2002) all are affected by supply and demand and are dependent on
the efficiency of the operation. We add that the operation in turn is dependent
on the performance of the supply chain.
Operations managers although mindful of financial measures, also have their
own set of measures. These can be categorized as utilization measures and per-
formance measures as shown in Table 19.2. It will be observed that the meas-
ures used by operations are not in conflict with those used by the accountants, but
are more at the tactical day-to-day level. The accountants tend to look at results
as a measure of what has happened and whether plans and targets (budgets) have
been achieved. Operations managers are also vitally interested in results but use
measurement to influence and control so as to achieve desired results.
Supply chain performance 337
Financial
Return/capital employed
Return on Assets
Net asset turnover
Profit/sales
Sales/capital employed
Sales/fixed assets
Sales/stock
Stock turnover
Sales/employee
Profits/employee
Current ratio
Gross profit
Cost of sales
Debtor days
Creditor days
Cash flow
Sales per square metre
Gearing
Usage %
Capacity % used
Space occupied
Down time (repairs, service/maintenance)
Machine cost (capital cost/depreciation or lease cost)
Set up time
People Output/through put per hour
Capacity % used
Idle or ineffective time
Absenteeism
Accidents/illness
Labour cost content
Materials Yield %
Waste/scrap %
(Continued)
338 Total Supply Chain Management
Rework
Rectification
Recalls
Material cost
• Market share
• Orders on hand
• Order lead time
• Repeat business
• Number of complaints
• Warranty claims
• New product development and launch
• Time to market
• Conversion of leads to sales
Investor measurement
A critical performance measurement is made by investors (and the share market).
Failure to provide a satisfactory return on investment (ROI) will lead to a drop in
share price, higher funding rates and close scrutiny by investors. When an organ-
ization is under pressure to reassure the investors, and the share market, pressure
will be applied to cut back on costs and to shed people. An example is Ford
Motors who announced following a very poor financial result, that in 2008 it will
close a further 16 factories and that up to 30,000 people will be redundant. Some
reports suggest that redundancy in 2007/2008 will be as high as 75,000.
Notwithstanding; redundancy of 30,000 is 10 per cent of Ford’s worldwide work
force of 300,000. Previously, in 2002, Ford made 35,000 redundant and closed
10 factories.
Self-centred measurement
All of the above performance measures are at one level of the supply chain, be
it first, second, third tier supplier of materials, manufacturer, processor, distribu-
tor, warehousing, or retailer. Obviously, the immediate upstream provider and
the immediate downstream customer will have an impact on the performance
of a supply chain component and in turn each member will be judging the per-
formance of its immediate upstream suppliers. However, the purpose of all the
measures listed above, be they financial, operational, marketing or by investors
is to achieve internal efficiency and ultimately to achieve an acceptable ROI.
In the simplified supply chain shown in Figure 19.1 one component of the
chain, the manufacturer, measures performance of itself, and of its immediate
customer and its immediate supplier. In this example the measurement is seen as
being two way, but frequently measurement is self-centred and little effort is
made to measure performance from the supplier or customers perspective, let
alone try to measure performance for the whole supply chain!
3rd tier
2nd tier
1st tier supplier
Manufacturer
Distributor
Warehouse
Retailer
End user
the box, and to recognize that organizations are not an island unto themselves.
Organizations are interdependent on other organizations up and down the supply
chain and need to recognize financial as well as logistical limitations and advan-
tages of inter-company including inter-national transactions. Some organizations
have achieved integration of their supply chain to an advanced level from a pos-
ition of dominance and power. Organizations such as Toyota and others who fol-
low a lean ‘just-in-time’ approach in manufacturing and organizations such as
Wal-Mart in the USA and Tescos in the UK and McDonalds worldwide have
been able to control performance of their supply chain to meet their objectives.
The lean production methods of Toyota require internally a flexible work
force, single minute exchange of dies (SMED), small batches, elimination of
non-value adding activities, scheduling to balance the line and to reduce queues,
simple easily understood control measures and feedback, and minimal stock
holding (work flows like water). Continuous improvement (kaizen) is so
engrained in the culture at Toyota staff are not aware of any other way of thinking!
Being internally efficient is crucial to a lean system, but no lean system is pos-
sible without the co-operation of suppliers and customers. Toyota does not dic-
tate to customers, but certainly enforces controls and standards on suppliers
out to several tiers of their supply chain. Toyota requires and insists on quick
response, delivery on time and delivery exactly to specification with up to 16
deliveries (hourly) required per day from immediate suppliers. Performance of
all of this requires shared values, standards, targets and measures. Toyota does
not neglect customer satisfaction. From the customer aspect performance is
measured in two ways; from internally set standards of product quality, on time
delivery and service and externally from feed back from customers. Despite all
this Toyota is not perfect and is prepared to publicly admit so.
Following recalls of over 1 million vehicles in Japan and 400,000 sports-utility
vehicles in the USA, Watanabe (3 August 2006), the Toyota President told a news
conference ‘the world class quality we have built is our life line. There will be no
growth without an improvement in quality. This is the biggest task that this
management must undertake’. It was advised that a new division dedicated to
gathering more quickly from users information of quality problems had been set up.
The Tesco, Wal-Mart and McDonald approach is to manage the supply chain
right back to when the seed goes into the ground. They do not themselves plant
Supply chain performance 341
or harvest the seed but they tell the farmer when to plant, what variety, what
fertilizers and type of pesticide to use, when to harvest and so on right down
the supply chain through processing and distribution until the product reaches
their retail outlets. Performance at each stage of the supply chain must comply
with their standards and measurements.
Customers at supermarkets benefit from a wide range and choice of product,
standardized quality of product, and prices are lower than any independent trader
could hope to achieve.
Shift of criteria
A little more than a decade ago the companies were urged to attain so-called
‘world class’ performance within the enterprise. The departments within a com-
pany were striving for islands of excellence and then with a succession of oper-
ational excellence initiatives (e.g. total quality management (TQM), business
process re-engineering (BPR), manufacturing resource planning (MRPII) and Six
Sigma) the fences between departmental turf were gradually demolished. The
organizations started to become customer focused and with established perform-
ance metrics in all areas of the business (e.g. ‘Balanced Scorecard’ (BSC)) began
to emerge. However, it is fair to say that both the business model and the perform-
ance metrics were site-centric or at most were confined within the company or
enterprise. The need for externally focused performance metrics from the per-
spective of a customer or an external supplier was identified. Unfortunately in
most companies in practice these metrics were not implemented beyond mere lip
service.
However, with web-based technologies now accelerating the collaborative
supply chain, it is becoming imperative to rethink the selection and implemen-
tation of the external metrics. This shift is not only in the measurement criteria,
but also in the mind-set of business practices. Collaboration requires a capacity
to ‘work in association, sometimes, with an enemy’ and does not achieve its
business success at the competitor’s expense. Figure 19.2, adapted from Basu
(2003) summarizes some specific areas where performance criteria have shifted
along with changes from the enterprise-centric business to the collaborative
supply chain.
In order to utilize the advantages of collaboration, the buy-in and commitment
of employees to the new mind-set is essential. However, to make the process a
reality it is also imperative to review and redesign the new performance man-
agement systems.
that are weak and build on those that are strong. FIT SIGMA is explained in
greater detail in the section ‘Making it happen’ of this chapter.
Process-based approach
There are two ways of measurement, one is to measure activities, and the other is
to identify and measure processes. The process-based approach concentrates on
the process rather than activities. A complete supply chain is a process. The very
name supply chain indicates one entity managed as a whole and not a series of
self-centred entities managed independently. The desired end result of the process
for a supply chain is to satisfy the customer with the delivery of a perfect order.
In a simplified supply chain the process to satisfy a perfect order is:
Supplier
Inward logistics
Factory
Outward logistics
Warehouse
Retailer
End user
From supplier through all the levels of the supply chain out to the end user
is the process.
Each component in the overall process will have to carry out a set of activities
and as shown earlier in this chapter each component will have a set of measur-
able standards.
These financial, operational and marketing performance measures although
inward looking if taken with a determination to correct and improve will lead
to an efficient use of resources and will facilitate customer satisfaction. As
explained the achievement of high standards of performance rely to a large
extent on demand and supply. Thus, many of the standards and measurements
for own performance can without much effort be related to the viewpoint of the
immediate supplier and the immediate customer. If each component takes a
customer centric view a perfect order will achieve:
Sounds familiar? Refer back to the opening paragraphs of this chapter. If each
component is achieving the delivery of a perfect order, then the process as a
whole, that is the complete supply chain process can be said to be performing
344 Total Supply Chain Management
Chan and Qi add that ‘metrics are selectively adopted according to the manage-
ment and measurement emphasis’ (p. 187).
So far in this chapter we have shown that traditional measurement, be they
financial, operational marketing or from the investors perspective are self-
centred and based on specific activities. Although some effort will be made by most
companies to measure immediate customer satisfaction, it is difficult for organi-
zations to measure the performance of the supply chain. Indeed if an organiza-
tion is not in a dominant position in the supply chain there is little chance that it
can influence the performance of the supply chain in its entirety. However, the
supply chain taken as a process can be measured. We provided a dashboard of
measurements. If each member of the supply chain is measuring its own internal
activities with the express aim of continuous improvement and is delivering a
perfect order to its customers, it follows that the supply chain as a whole will be
customer centric. The result being that the entire process of the supply chain will
be geared towards delivering perfect orders to the end user. Each player in the
supply chain will benefit by being leaner and more profitable.
The premise being that if each component is internally efficient and deter-
mined to deliver perfect orders, beginning with the original supplier flowing
down through each component of the chain out to the end user that the entire
chain will be efficient and each player will benefit.
Making it happen
The first section of this chapter deals with how performance is measured at
organizational level, the second section considers the supply chain as a process
and process-based measurement, the third section considers how an organiza-
tion can self evaluate and become efficient.
Theory of constraints
The theory of constraints (TOC) is a management philosophy developed by
Goldratt (1992). The theory is that the output of an organization is limited (con-
strained) by internal resources, market factors and by policy. Resource constraint
means not enough resources to meet demand, market constraints mean capacity
is more than the market demands, and a policy constraint (i.e. a policy of no over-
time) can limit output. TOC tries to improve system performance by focusing
and eliminating constraints. In service operations where it is often difficult to
quantify the capacity constraint, TOC can be very useful. For companies that
employ skilled workers and for many service organizations the constraint is often
the time of one or a few key employees. The key steps in this process are:
1. Identify: The first step in applying TOC is to identify the constraining factor
(bottleneck department or section).
2. Exploit: Determine the throughput per unit of the constraining factor (by
department or section of a department).
346 Total Supply Chain Management
1. Financial
2. Customer
Financial
‘To succeed
Objectives Measures Targets Initiatives
financially,
how should we
appear to our
shareholders?’
1. ROI
2. Budget
3. Shareholder value
4. Customer
5. People
6. Quality
Targets (scores) are formulated for each element, communicated and consensus
achieved, executed and results are evaluated with corrective action taken so that
the targets (scores) are achieved. Norton says that it is important that all elem-
ents are linked and not considered in isolation. The BSC has been applied suc-
cessfully in several organizations around the world. It is evident that the key
performance indicators (KPI) of both manufacturing and service organizations,
as we have described earlier, can be incorporated in to a properly designed BSC.
The scorecard, with some customized changes, provides a management tool for
senior executives primarily to focus on strategies and longer-term objectives. The
organizations could vary from a large multinational business to a non-profit-
making public service unit. The scorecard is sometimes named the ‘Executive
Dashboard’. The KPI are reported as:
• Current actual
• Target
• Year-to-date average
• Variance to YTD target
When the actual performance value is on or above target then the value is
shown as green. If the actual is below the target but within a given tolerance
then the colour becomes amber. It is depicted in red when the value is below
the tolerance limit of the target. Another area of application is to assess the per-
formance at the tactical operation level. Usually the top level indicators (also
known as ‘vital flow’) are designed in such a way that they can be cascaded to
‘component’ measures and the root causes can be analysed. Basu (2002)
emphasized the impact of new measures on the collaborative supply chain. The
Internet-enabled supply chain or e-supply chain has extended the linear flow of
Supply chain performance 349
1. External focus
2. Power to the consumer
3. Value-based competition and customer relationship management
4. Network performance and supplier partnership
5. Intellectual capacity
The design features and application requirements of the BSC can be adapted
to the collaborative culture of the integrated supply chain (see Chapter 13).
Poor Excellent
How good is your integrated point of sale 0.1 0.2 0.3 0.4 0.5
system?
*How effective is the inclusion of
key suppliers in the planning process?
*How effective are you in the sharing of
common coding and databases with suppliers
and customers using Internet or EDI?
How effective have you been in the
co-development of new product?
(Continued )
350 Total Supply Chain Management
Poor Excellent
How effective are you in sharing risks and 0.1 0.2 0.3 0.4 0.5
cost savings with your suppliers?
How good are you in meeting delivery as
determined by customers?
How well do you work with suppliers to
improve each others processes?
How satisfactory is your post-delivery
performance in terms of invoice accuracy?
How well do you record and seek causes for
return of goods and/or customer complaints?
How well is cost of non-conformance to
quality standards communicated to staff
(cost of rework, scrap, replacement, overtime
and lost business)?
How cost-efficient is your distribution
operation when distribution cost is expressed
as a percentage of sales? (Over 8% is poor,
less than 1% is excellent)
How easy is it for customers to contact the
right person in your organization when they
want to place an order or need knowledge of
your product?
With Total Operations Solutions larger projects are selected based upon an
organization’s strategic goals and requirements. The viability of the project is
then established based on certain quantifiable criteria including ROI and strat-
egic goals. With Total Operations Solutions, before any improvement project is
commenced five factors are considered:
1. What is the project’s value to the business in terms of overall financial per-
formance? This factor can be applied by monitoring the savings on a monthly
basis.
2. What resources will be required? How much will they cost? The time scale
of the project is also included in this factor.
3. What metrics will be used to monitor the performance of specific large pro-
jects? Examples are DPMO (Defects Per Million Opportunities) and RTY
(Rolled Throughput Yield).
4. What will the impact be on the external market? It will be important to
monitor customer service and sales revenue to ensure that there is no ero-
sion due to key people’s commitment to the project.
5. That the project does not take on a life of its own, and that it continues to
align with the overall mission and strategy of the business.
A recurring challenge for companies who have invested significant time and
resources in implementing proven improvement plans such as Total Operations
Solutions or Six Sigma is how to ensure sustainable performance beyond the
duration of a one-off corporate exercise. The annual review of the change
Supply chain performance 351
Resources 90 points
Processes 140 points
People satisfaction 90 points
Customer satisfaction 200 points
Impact on society 60 points
Business results 150 points
Total 1000 points
The first five categories (leadership to processes) are ‘enablers’ and the remaining
four categories are ‘performance’ related.
organization is likely to have its own resources to develop and maintain the
process; a smaller organization may require the assistance of external consultants
to develop the process.
Signature of quality
Signature of quality (SoQ) is another approach and is illustrated by the follow-
ing case example.
1. Customer focus
2. Innovation
3. Personnel and organizational leadership
4. Exploitation of enabling technology
5. Environment and safety
SoQ is managed as a global process from the USA office and each site is
encouraged to prepare and submit a comprehensive quality report meeting
the requirements. The assessment is carried out by specially trained Quality
Auditors and a site may receive an SoQ Award based upon the results of the
assessment.
SoQ has been reported to be successful in Janssen–Cilag as a tool for
performing a regular ‘health check’ and as a foundation for improvement
from internal benchmarking.
Case from Basu and Wright (2003)
354 Total Supply Chain Management
Knowledge management
Our final comment in this chapter is that knowledge once gained is too important
to lose. The key principles of knowledge management are:
Level 4: Implementation
The fourth level is implementation between partners of the supply chain. From
January 2007 organizations using SCOR have had access to benchmark metrics.
Level 1: Initial
At maturity level 1, processes are usually ad hoc and the organization usually
does not provide a stable environment. Success in these organizations depends
356 Total Supply Chain Management
on the competence of the people in the organization and not on the use of proven
processes.
Level 1 software project success depends on having high quality people.
Level 2: Repeatable
At maturity level 2, software development successes are repeatable. The
processes may not repeat for all the projects in the organization. The organiza-
tion may use some basic project management to track cost and schedule.
Basic project management processes are established to track cost, schedule,
and functionality. The minimum process discipline is in place to repeat earlier
successes on projects with similar applications and scope. There is still a sig-
nificant risk of exceeding cost and time estimates.
Level 3: Defined
The organization’s set of standard processes, which is the basis for level 3, is
established and improved over time. These standard processes are used to estab-
lish consistency across the organization. Projects establish their defined processes
by the organization’s set of standard processes according to tailoring guidelines.
A critical distinction between levels 2 and 3 is the scope of standards, process
descriptions and procedures. At level 2, the standards, process descriptions and
procedures may be quite different in each specific instance of the process.
At level 3, the standards, process descriptions and procedures for a project are
tailored from the organization’s set of standard processes to suit a particular pro-
ject or organizational unit.
Level 4: Managed
Using precise measurements, management can effectively control the software
development effort. In particular, management can identify ways to adjust and
adapt the process to particular projects without measurable losses of quality or
deviations from specifications. Organizations at this level set quantitative qual-
ity goals for both software process and software maintenance.
A critical distinction between maturity level 3 and maturity level 4 is the pre-
dictability of process performance. At maturity level 4, the performance of
processes is controlled using statistical and other quantitative techniques, and
is quantitatively predictable. At maturity level 3, processes are only qualitatively
predictable.
Level 5: Optimizing
Maturity level 5 focuses on continually improving process performance through
both incremental and innovative technological improvements. Quantitative
process-improvement objectives for the organization are established, continually
revised to reflect changing business objectives, and used as criteria in managing
Supply chain performance 357
Summary
This chapter has addressed the various measures of performance including hard
and soft measures and the selection of appropriate measures should depend on
the specific supply chain of the organization. The supply chain performance is
also shown to be a process of integrating the building blocks and stakeholders
of the total supply chain, and that if each member of the process is efficient and
is dedicated to passing on a perfect delivery the process as a whole will be effi-
cient. It is accepted that few players in a supply chain can dominate or control
another player. However each player can strive to become more efficient in their
activities. To become efficient it is first necessary to know our existing level of
performance and to identify gaps in performance. Various approaches for self-
analysis were explained and illustrated. Analysis is the first step, improvement
(getting fit) is the next, and staying fit is the final stage. This chapter shows how
FIT SIGMA can be used to maintain fitness. We concluded with a section on
the importance of knowledge management.
20
Case study examples
Introduction
In preceding three chapters we aimed to establish how Systems and Procedures
(Chapter 17), Sales and Operations Planning (Chapter 18) and Performance
Management (Chapter 19) act as integrators of the building blocks of total sup-
ply chain management. In this chapter, we illustrate the interdependency of the
building blocks with two case studies. The first case study is based on the
experience of a pharmaceutical company to deal with all aspects of supply
chain management by applying appropriate good practices relevant to each
building block. The second case example is a variation of the well-known beer
game (Senge, 1990) to illustrate how the stakeholders (e.g. factory, warehouse,
distributor and retailer) are dependent on the forecasts, processes and invento-
ries of one another.
Background
A multinational pharmaceutical company in Turkey (herein after referred as
‘the company’) was awarded MRPII (manufacturing resource planning) ‘Class
A’ certification in 1999 by business education consultants Oliver Wight (OW),
Europe. The application of sustainable behavioural and performance metrics
was applied to monitor and facilitate the attainment of MRPII to Class A
status.
As part of the MRP II Class A programme, GSK (GlaxoSmithKline) Turkey
installed a sales and operations planning (S&OP) process which is under-
pinned by a set of business planning meetings at various levels. The company
went through major changes following the ‘Class A’ award including
the global merger with another multinational pharmaceutical company and the
corporate Lean Sigma programme. In spite of these seismic changes, the
S&OP process has been continued by the company every month.
The rigour of the S&OP process which is championed by the Managing
Director has helped the company to sustain and improve the business benefits
Case study examples 359
The organization structure of the company in general remained the same with
some changes in personnel after the merger as shown in Figure 20.1.
Managing
director
Project scenario
However the situation was quite different with the company in late 1990s.
During the growth period of a blockbuster drug, a manufacturing plant was
installed in 1984 at Gebze, an industrial town approximately 80 kilometres
from the head office in Istanbul. The Gebze factory gradually expanded to
accommodate manufacturing and secondary packing facilities for antibiotics
and tertiary packaging of imported corporate products for the local market. By
the beginning of 1997 Gebze factory was producing nearly 25 per cent of the
company turnover of over $100 million. A distribution warehouse was built in
1992 at the Gebze site and this was managed by the Logistics Department of
the company. With the assistance of a local software consulting firm the
Information Technology (IT) Department implemented the financial module
and limited planning modules of an ERP system called MFG-Pro. Although
the company was enjoying a period of growth both the internal communication
and external customer service were not satisfactory. Some of the problems and
challenges were:
• The customer order fill was only around 85 per cent while the stock cover
was over 6 months.
360 Total Supply Chain Management
1. Changes
– Implement a company-wide S&OP process (see Figure 20.2) supported
by appropriate training.
– Re-engineer the MRPII process according to company requirements.
– Update MFG-Pro planning modules to comply with re-engineered
MRPII requirements and validation guidelines.
– Install a performance management process to work towards MRPII Class
A standards.
2. Time scale
– MFG-Pro will have to be Y2K enabled by the end of 1999.
– The work on Business Process Excellence and MRPII processes is
expected to take 18 months leading to MRPII Class A.
3. Cost
– $50,000 will be available from a corporate fund to ensure the validation
on Y2K compliance of MFG-Pro.
– The training, consulting and other costs for the Business Process
Excellence project are expected to be self-financing and supported by the
company in Turkey.
Case study examples 361
Executive
Torchbearer
Executive
Steering committee
Project leader
Project team
Task groups
Project launch
The company in Turkey launched a programme (known as EKIP) in January
1998 to improve company-wide communications and sustain a robust business
planning process using MRPII ‘best practice’ principles.
The Logistics Director was involved in a MRPII Class A project when he
was previously working in Bristol Myer Squibs and was appointed as the
Project Manager for EKIP. He invited two consultants from OW Group, who
are known to be specialists in MRPII processes to run a 2-day training work-
shop for manager. The OW consultants advised:
• To set up a project team with specific task groups for S&OP, demand man-
agement, production planning, MFG-Pro update, quality and validation,
performance management, and training and communication.
• To achieve MRPII Class A the company should fulfil performance criteria
(e.g. Order Fill 95 per cent, BOM accuracy per cent, MPS performance
95 per cent, supplier delivery performance 95 per cent, inventory record
accuracy 99 per cent), MRPII process integrated with the software
MFG-Pro and a sustainable S&OP process.
The Logistics Director decided that after the OW training workshop the com-
pany will do everything themselves except the software support from a local
consulting firm to update MFG-Pro.
362 Total Supply Chain Management
Corporate review
The supply chain problem escalated and Logistics Director had to spend more
time in the trouble shooting of day to day operations. In 3 months there were lit-
tle progress with the EKIP except some Y2K related systems specification for
MFG-Pro and the formation of task groups. The relations between the Logistics
Team at the head office and the Production Team at Gebze deteriorated further.
A key member of the Corporate Manufacturing and Supply Strategy Group
from England reviewed the status of Project EKIP and recommended a full
time Project Manager, a revised organization and a road map to Class A for
GW Turkey. Logistics Director continued as part of the steering team con-
tinued to be a key player in the success of the project.
Implementation
Following the recommendations of the corporate review the first task was to
appoint a full time project manager. After considering candidates from
Production, Engineering, Logistics, IT, Finance and sister companies a
Management Accountant was chosen to lead the project. The primary criteria
of selection included project management experience, business knowledge and
leadership qualities. With some guidance from Corporate Business Excellence
Group a project definition report was prepared as summarized below:
PROJECT EKIP
Project definition report
1.1 Purpose
• To install a performance management process to work towards
MRPII Class A standards.
• To update the ERP system (MFG-Pro) to comply with validation
guidelines, Y2K compliance and re-engineered MRPII requirements.
1.2. Scope
The project will include:
1.3 Objectives
The project will be executed with minimum disruption to existing business
• S&OP Process
• Demand Management
• Master Production Schedule and Capacity Planning
• Bill of Materials and Procurement
• Manufacturing and Distribution
• Quality Management, Risk/Change Control and Process Validation
• Balanced Scorecard
• Education, Training and Communication
• MFG-Pro Systems
• Closure
– MRPII Class A Audit
– Award ceremony
The project organization (see Figure 20.2) comprised a steering team headed
by a ‘torch bearer’ (Managing Director) and project team led by the Project
Manager and a supporting task team. The project team consisted of the Project
Manager and leaders from each task team. The steering team members were
Case study examples 365
mostly the company board members and the Project Manager and the Business
Excellence Director for the centre. Steering team members also act as ‘mentors’
of task teams according to their functional responsibilities. The progress of the
project was reviewed every week by the project team and every 4–6 weeks by
the steering team. The project deliverables were accomplished in time including
the Y2K dead line and the development of a Balanced Scorecard. The critical
success factors were the total commitment of the top management, continuous
education of task teams, robust communication with stakeholders and a good
interface between the business requirements and software (MFG-Pro).
The company is also working with the Corporate R&D to incorporate envi-
ronment, health and safety considerations into the design of new products through
EHS (environment, health and safety) staff participation in and support for new
product teams, and through the use of the Eco-design Toolkit. EHS involvement
in the new product teams also provides a unique opportunity to influence supply
chain decisions and highlight systemic EHS issues early in the product devel-
opment process. The Eco-design Toolkit is available in the corporate intranet
and includes a green chemistry and technology guide, a materials guide and a
green packaging guide. The company also provides oversight and audit of EHS
issues with the support of experts from the centre for critical suppliers and con-
tract manufacturers of materials that are used exclusively by the company.
Terminology
BOM Bill of Materials
CPFR Collaborative Planning Forecasting and Replenishment
EHS Environment, Health and Safety
ERP Enterprise Resource Planning
FDA Food and Drug Administration
MPS Master Production Schedule
MRPII Manufacturing Resource Planning
OW Oliver Wight
Y2K Year 2000
– performance management
– lean and agile supply chain
– green supply chain
Charlie’s Operation
Charlie is the Operations Manager of a wholesaler that supplies 50 plus retailers.
The products stocked come under the heading of personal hygiene. There is
a range of 220 products (line items). Products are received from several distributors
and in some cases direct from the manufacturer. There are three main distributors
(accounting for 80 per cent of the product lines and about 78 per cent of the
demand). There are 20 other distributors plus two factories which supply direct to
Charlie. The major distributors are in competition with each other as their prod-
ucts are very similar and in some cases the only perceptible difference is the brand
name. Two of the distributors are sourced from the one factory Busby and Co.
There is no seasonal demand by consumers, in fact retailers have advised
Charlie that consumer demand is almost constant, that is there is no particular
day or month in which demand for any of the products is markedly higher or
lower than any other day or month. Although Charlie accepts what the retailers
say, but nonetheless he has never been able to understand why the size of orders
from retailers fluctuate to the extent that they do. Over a 12-month period the
total demand is 52,000, which Charlie would have expected would give an aver-
age demand of 1000 per week, but in reality for some weeks retailer’s orders can
be as high as 4000 (and this high demand might last for two or even 3 weeks),
and in other weeks the demand is almost nothing. Charlie tries to keep sufficient
stock on hand so that he can satisfy a retailers order within 2 days. There is
a 2-week lead time from the larger distributors, but from the two direct supply
factories and some of the smaller distributors the lead time can be up to 4 weeks.
Charlie uses a computerized spreadsheet and records on a daily basis the
amount of stock on hand for each line item, the amount received and the date,
the amount ordered and the date of order, the amount issued, and the amount of
any backorders. From this information the computer automatically:
• Calculates the average past lead time to replenish stock for each line item.
• The average demand calculated from the last 4 weeks demand.
• e-Mails an order on the distributors and the two direct supply factories.
The computer allows 1 week of ‘safety’ stock in its calculation of the amount
ordered. For example, one of the largest distributors is XTRA. XTRA are very
Case study examples 369
reliable and when an order is placed on them they will generally supply within
2 weeks. Thus the computer calculates that for a XTRA product, when the stock
level drops to the computer’s calculation of 3 weeks demand, the computer will
automatically trigger an order on XTRA after deducting any stock already on
order. The assumption being that the stock will be received from XTRA within
2 weeks and thus the stock level will not drop below the safety level of 1 weeks
demand. Similar calculations are made for automatic ordering on all the other
distributors and on the two factories that supply directly to Charlie.
A problem occurred 3 months ago when one of the larger distributors POISE
Limited announced a price rise. The retailers learnt of the impending price rise
before Charlie did, and there was some panic ordering by many of the retailers.
As a result Charlie ran out of stock for almost one third of the line items.
POISE Limited took 6 weeks to deliver new stock. By then most of the retail-
ers wanted to cancel their back orders.
Due to the fluctuations in order size Charlie finds he has either too much
stock or not sufficient stock to meet the desired 2-day turn around of orders.
Seldom does he have the desired level of stock for all line items; some will be
badly overstocked, and there will be stock outs for other items. Another prob-
lem is people. Charlie has 8 warehouse staff. Some days they have little to do,
and at other times he has to ask them to work overtime. Staff turnover is high,
and new staff make mistakes. There is also some degree of stock ‘shrinkage’
and Charlie suspects this is due to theft by staff.
Amos the accountant has advised Charlie that bank interest rates have
increased and that the landlord is asking for a 15 per cent rent increase. The
Accountant has calculated that if Charlie can reduce stock holding by 10 per cent
that it will be possible to sub let part of the warehouse and thus reduce overhead
costs. The accountant also suggests that Charlie could reduce the number of staff
he employs and suggests that the 2-day delivery target to the retailers could be
changed to 5 days, Amos adds that ‘you are paying too much in overtime’.
Charlie decides to do some calculations. His figures are shown below.
Charlie’s Warehouse
Distributor
XTRA POISE JANES OTHERS TOTAL
Charlie is only one component of the supply chain. Consider how using shared
electronic information could benefit the major members of this supply chain.
In your answer consider the benefits and dangers of sharing information with
other components of a supply chain, bearing in mind that some components are
serious competitors.
Part 4: Integrating supply
chain management
Questions
1. Explain the distinctive features of the three dimensions of quality product,
process and organization. Discuss and distinguish between the dimensions
of quality as presented by Gravin and Parasuraman.
2. Identify from the customer’s viewpoint those dimensions of quality in
supply chain management which could be important for the following prod-
ucts/services:
(a) Luxury Cruise Ship
(b) Medical Centre
(c) Supermarket Service
(d) Rolex Watch
(e) Package Holiday
(f) Ford Motor Company
(g) Norwich Union Insurance Company
(h) Advertising of a Nokia Mobile Phone
3. How would you distinguish between inspection, quality control, quality
assurance and total quality management (TQM)?
What are the appropriate areas or stages of application for each scheme in
supply chain management?
What does ‘total’ mean in TQM?
4. What are the features and philosophy common to both TQM and Six Sigma?
Explain the new features, if any, in a Six Sigma programme.
What are the additional features in Lean Sigma and FIT SIGMA?
5. Explain the various elements of the ‘cost of poor quality’.
Why is it that some quality-related costs, after the delivery of goods, are
more significant to the supplier?
List the key elements of the internal and external failure costs in your
organization.
6. What are the major software systems to manage total supply chain manage-
ment? Discuss how the shifts of technology platforms have increased the
effectiveness of supply chain software systems.
372 Total Supply Chain Management
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References 377
ABC analysis It is based on a Pareto analysis grouping units usually according to the
share of annual cost. Units having 80 per cent annual cost are considered in the ‘A’
classification, units with the bottom 5 per cent share are ‘C’ items and units with
costs in between are in the ‘B’ category.
Activity-based costing It is analysing the cost of an operation at each processing step.
In addition to measuring direct costs it covers bottlenecks, delays, and other time-
related activities to highlight areas of inefficiencies in an operation.
Activity network diagram It is a network analysis technique to allow a team to find
the most efficient path and realistic schedule of a project by graphically showing the
completion time and sequence of each task.
Balanced Scorecard Balanced Scorecard introduced by R. Kaplan and D. Norton in
early 1990s is a concept for measuring a company’s activities in terms of its vision and
strategies, to give managers a comprehensive view of the performance of a business.
Typically it comprises simple tables broken into four sections of ‘perspectives’ which
are labelled as ‘Financial’, ‘Customer’, ‘Internal Business Processes’ and ‘Learning &
Growth’.
Bar chart It is also known as Gantt chart, indicates scheduling activities. Horizontal
bars show the various activities with the length of the bar proportional to the dura-
tion of a particular activity.
Benchmarking It is rating an organization’s products, processes and performances
with other organizations in the same or another business. The objective is to identify
the gaps with competitors and the areas for improvement.
Best practice Best practice refers to any organization that performs as well or better
than the competition in quality, timeliness, flexibility and innovation. Best practice
should lead to world class performance.
Black belts They are experts in Six Sigma methods and tools. Tools include statistical
analysis. Black belts are project leaders for Six Sigma initiatives, they also train
other staff members in Six Sigma techniques.
Brainstorming A freewheeling group session for generating ideas. Typically a group
meeting of about seven people will be presented with a problem. Each member will
be encouraged to make suggestions without fear of criticism. One suggestion will
lead to another. All suggestions, no matter how seemingly fanciful, are recorded and
subsequently analysed. Brainstorming is useful for generating ideas for further
detailed analysis.
Business process re-engineering (BPR) It has been described as a manifesto for
revolution. The approach is similar to taking a clean piece of paper and starting all
over by identifying what is really needed to make the mission of the organization
happen.
Capability Maturity Model Integration (CMMI) It is a process improvement
approach that provides organizations with the essential elements of effective
processes. It was developed by the SEI (Software Engineering Institute) at Carnegie
Mellon University in Pittsburgh.
Glossary 381
Capacity planning Capacity planning specifies the level of resources (e.g. facilities,
fleets, equipment, systems hardware and labour force size) that best supports the
enterprise’s competitive strategy for production.
Capacity requirement planning (CRP) It is a computerized technique to predict
resource requirements of all available workstations (also see RCCP). RCCP bal-
ances workloads at a high level, CRP will then fine tune the workload balance.
Carbon offset It is the process of reducing the net carbon emissions of an individual
or organization, either by their own actions or through arrangements with a carbon-
offset provider.
Cause and effect diagram The cause and effect, fishbone or Ishikawa diagram was
developed by Kaoru Ishikawa. The premise is that generally when a problem occurs
the effect is very obvious, and the temptation is to treat the effect. With the Ishikawa
approach the causes of the effect are sought. Once the cause is known and eliminated
the effect will not be seen again. For example, working overtime is an effect, adding
extra staff does not remove the cause. The question is what caused the situation that
led to overtime being worked.
Collaborative Planning Forecasting and Replenishment (CPFR) Data and process
model standards are developed for collaboration between suppliers and an enterprise
with prescribed methods for planning (agreement between the trading partners to
conduct business in a certain way); forecasting (agreed-to methods, technology and
timing for sales, promotions and order forecasting) and replenishment (order genera-
tion and order fulfilment).
Continuous improvement It is always looking for ways to improve a process or a
product, but not necessarily making radical step changes. If the basic idea is sound,
then building on it will improve quality. In Japan this is known as Kaizen.
Control chart It is a tool in statistical process control to monitor the number of defects
found in a product or a process overtime and study the variation and its source.
Cost of poor quality (COPQ) The cost of poor quality is made up of costs arising
from internal failures, external failures, appraisal, prevention and lost opportunity
costs. In other words all the costs that arise from non-conformance to a standard.
CTQs In Six Sigma CTQs are referred as critical to quality. This simply means the
identification of factors that are critical for the achievement of a level of quality.
Customer relationship management (CRM) It is the development of the database
and strategies necessary to have the maximum client relationships in terms of qual-
ity, cost, reliability and responsiveness.
Cycle time It is the elapsed time between two successive operations or the time
required to complete an operation.
Demand forecast It is the prediction, projection or estimation of expected demand
over a specified future time period.
Design for Six Sigma (DFSS) See Basu (2004), pp 174–179 for detailed discussion.
The steps are define, measure, analyse, design and validate.
Distribution channels The selling channels supported by an enterprise. These may
include retail sales, distribution partner (e.g. wholesale) sales, original equipment
manufacturer (OEM) sales, Internet exchange or marketplace sales and Internet auc-
tion or reverse auctions sales.
Distribution requirements planning (DRP) Process for determining inventory require-
ments in a multiple plant/warehouse environment. DRP may be used for both distribu-
tion and manufacturing. In manufacturing, DRP will work directly with MRP. DRP
may also be defined as distribution resource planning which also includes determining
labour, equipment and warehouse space requirements. DRP is the planning step in the
supply chain to move finished goods from production or stock to the customer.
DMAIC It is the cycle of define, measure, analyse, improve and control, see Basu
(2004), pp 168–174 for detailed discussion.
382 Glossary
very obvious, and the temptation is to treat the effect. With the Ishikawa approach
the causes of the effect are sought. Once the cause is known and eliminated the
effect will not be seen again. For example, working overtime is an effect, adding
extra staff does not remove the cause. The question should be why is overtime nec-
essary and what caused this problem.
ISO 9000 To gain ISO 9000 accreditation an organization has to demonstrate to an
accredited auditor that they have a well-documented standard and consistent process
in place which achieves a defined level of quality or performance. ISO accreditation
will give a customer confidence that the product or service provided will meet cer-
tain specified standards of performance and that the product or service will always
be consistent with the documented standards.
Just-in-time (JIT) It was initially a manufacturing approach where materials are
ordered to arrive just when required in the process, no output or buffer stocks are
held, and the finished product is delivered direct to the customer. Lean Sigma incor-
porates the principals of JIT and now relates to the supply chain from supplier
and supplier’s supplier, through the process to the customer and the customer’s
customer.
Kaizen It is a Japanese word derived from a philosophy of gradual day-by-day better-
ment of life and spiritual enlightenment. This approach has been adopted in industry
and means gradual and unending improvement in efficiency and/or
customer satisfaction. The philosophy is doing little things better so as to achieve a
long-term objective.
Kanban It is a Japanese word for card. The basic kanban system is to use cards to
trigger movements of materials between operations in production so that a customer
order flows through the system. Computer systems eliminate the need for cards but
the principle is the same. As a job flows through the factory, completion of one stage
of production triggers the next so that there is no idle time, or queues, between oper-
ations. Any one job can be tracked to determine the stage of production. A ‘Kanban’
is raised for each customer order. The kanban system enables production to be in
batches of one.
Key performance indicators (KPIs) It includes measurement of performance such
as asset utilization, customer satisfaction, cycle time from order to delivery, inven-
tory turnover, operations costs, productivity and financial results (return on assets
and return on investment).
Lean Sigma Also see Just-in-time (JIT). Lean was initially a manufacturing approach
where materials are ordered to arrive just when required in the process, no output or
buffer stocks are held, and the finished product is delivered direct to the customer.
Lean Sigma incorporates the principals of Six Sigma, and is related to the supply
chain from supplier and supplier’s supplier, through the process to the customer and
the customer’s customer.
Manufacturing resource planning (MRPII) It is an integrated computer-based pro-
cedure for dealing with all of the planning and scheduling activities for manufactur-
ing, and includes procedures for stock re-order, purchasing, inventory records, cost
accounting and plant maintenance.
Master Production Schedule It (also commonly referred to as the MPS) is effectively
the plan that the company has developed for production, staffing, inventory, etc. MPS
translates your business plan, including forecasted demand, into a production plan
using planned orders in a true multi-level optional component scheduling environ-
ment. Using MPS helps you avoid shortages, costly expediting, last minute schedul-
ing and inefficient allocation of resources.
Materials requirement planning (MRP) It is a dependent demand system that cal-
culates materials requirements and production plans to satisfy known and forecast
384 Glossary
sales orders. MRP helps to calculate volume and timing requirements to meet an
estimate of future demand. There are three major types of computer-based MRP
systems – MRPI, ‘Closed loop’ MRP and MRPII.
Mind mapping It is a learning tool for ordering and structuring the thinking process of
an individual or team working on a focused theme. According to Buzan the Mind
Map ‘harnesses the full range of cortical skills – word, image, number, logic, rhythm,
colour and spatial awareness – in a single and uniquely powerful technique’.
Monte Carlo technique It is a simulation process. It uses random numbers as an
approach to model the waiting times and queue lengths and also to examine the
overall uncertainty in projects.
Mudas Muda is the Japanese word for waste or non-value adding. The seven activi-
ties that considered are excess production, waiting, conveyance, motion, process,
inventory and defects. For further detail see Chapter 13.
Overall equipment effectiveness (OEE) It is the real output of a machine. It is given
by the ratio of the good output and the maximum output of the machine for the time
it is planned to operate.
Pareto Wilfredo Pareto was a 19th century Italian economist who observed that
80 per cent of the wealth was held by 20 per cent of the population. The same phe-
nomenon can often be found in quality problems. Juran (1988) refers to the vital few
and the trivial many. The technique involves collecting data of defects, identifying
which occur the most and which result in the most cost or damage. Just because one
defect occurs more often than others does not mean it is the costliest or should be
corrected first.
PDCA The Plan-Do-Check-Act cycle was developed by Dr W.E. Deming. It refers to
Planning the change and setting standards, Doing – making the change happen,
Checking that what is happening is what was intended (standards are being met) and
Act – taking action to correct back to the standard.
PESTLE Political, Economic, Social, Technical, Legal and Environmental, is an ana-
lytical tool for assessing the impact of external contexts on a project or a major opera-
tion and also the impact of a project on its external contexts. There are several possible
contexts including political, economic, social, technical, legal and environmental.
Poka Yoke Refers to making each step of production mistake free. This is known as
mistake proofing. Poka Yoke was developed by Shingo, also see SMED, and has two
main steps: (1) preventing the occurrence of a defect and (2) detecting the defect.
The system is applied at three points in a process:
Project A project is a unique item of work for which there is a financial budget and a
defined schedule.
Project charter It is a working document for defining the terms of reference of each
Six Sigma project. The charter can make a successful project by specifying neces-
sary resources and boundaries that will in turn ensure success.
Project management It involves the planning, scheduling, budgeting and control of
a project using an integrated team of workers and specialists.
Process mapping It is a tool to represent a process by a diagram containing a series
of linked tasks or activities which produce an output.
Quality circles Quality circles are teams of staff who are volunteers. The team selects
issues or areas to investigate for improvement. To work properly teams have to be
Glossary 385
trained, first in how to work as a team (group dynamics) and secondly in problem solv-
ing techniques.
Quality function deployment (QFD) It is a systematic approach of determining
customer needs and designing the product or service so that it meets the customers
needs first time and every time.
Regression analysis It is a tool to establish the ‘best fit’ linear relationship between
two variables. The knowledge provided by the scatter diagram is enhanced with the
use of regression.
Resource utilization and customer service (RU/CS) analysis It is a simple tool to
establish the relative importance of the key parameters of both resource utilization
and customer service and to identify their conflicts.
Rolled throughput yield (RTY) It is also known first pass yield (FPY). It is the ratio
of the number of completely defects free without any kind of rework during the
process units at the end of a process and the total number of units at the start of a
process. The theoretical throughput rate is often regarded as the number of units at
the start of the process. RTY/FPY is used as a key performance indicator to measure
overall process effectiveness.
Rough-cut capacity planning (RCCP) RCCP process considers only the critical
work centres (bottlenecks, highly utilized resources, etc.) and attempts to balance
longer-term workloads and demand at high level.
Sales and operations planning (S&OP) It is derived from MRP and includes new
product planning, demand planning, supply review, to provide weekly and daily
manufacturing schedules and financial information. Also see MRPII. S&OP is fur-
ther explained in Chapter 18 (see Figure 18.2).
Scatter diagram These diagrams are used to examine the relationship between two
variables. Changes are made to each and the results of changes are plotted on a
graph to determine cause and effect.
Sigma Sigma is the sign used for standard deviation from the arithmetic mean. If a
normal distribution curve exists one sigma represents one standard deviation either
side of the mean and accounts for 68.27 per cent of the population. This is more fully
explained in Chapter 17.
Signature of quality (SoQ) It is a self-assessment process supported by a checklist
covering: customer focus, innovation, personnel and organizational leadership, use
of technology and environment and safety issues. It is useful in FIT SIGMA for
establishing a company ‘health’ report.
Single minute exchange of dies (SMED) This was developed for the Japanese auto-
mobile industry by Shigeo Shingo in the 1980s and involves the reduction of change
over of production by intensive workstudy to determine in process and out process
activities and then systematically improving the planning, tooling and operations of
the change over process. Shingo believed in looking for simple solutions rather rely-
ing on technology.
SIPOC It is a high level map of a process to view how a company goes about satisfy-
ing a particular customer requirement in the overall supply chain. SIPOC stands for
supplier, input, process, output and customer.
Six Sigma It is a quality system which in effect aims for zero defects. Six
Sigma in statistical terms means six deviations from the arithmetic mean. This
equates to 99.99966 per cent of the total population, or 3.4 defects per million
opportunities.
Statistical process control (SPC) It uses statistical sampling to determine if the out-
puts of a stage or stages of a process are conforming to a standard. Upper and lower
limits are set, and sampling is used to determine if the process is operating within the
defined limits.
386 Glossary