PGDM Trimester I, 2013
Learning Objectives
System concepts Components of an information system Recognizing information systems Information Systems vs IT Roles of IS in business Trends in information systems
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What is a System?
Definition: A group of interrelated components, working together toward a common goal by accepting inputs and producing outputs in an organized transformation process.
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System Components
Input capturing and assembling elements that enter the system to be processed Processing transformation steps that convert input into output Output transferring elements that have been produced by a transformation process to their ultimate destination
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Cybernetic Systems
Definition: a self-monitoring, self-regulating system.
Feedback data about the performance of a system Control monitoring and evaluating feedback to determine whether a system is moving toward the achievement of its goal
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A Business Organization
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What is an Information System?
Any organized combination of people, procedure, hardware, software, communications networks, and data resources that collect, stores, transforms, and disseminates information in an organization.
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Information System Model
Resources & Activities
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Information System Resources
People end users and IS specialists Hardware physical devices and materials used in information processing including computer systems, peripherals, and media
Software sets of information processing instructions including system software, application software and procedures
Data facts or observations about physical phenomena or business transactions Network communications media and network infrastructure
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People in Organizations
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Information Systems Activities
Input of Data Resources Processing of Data into Information Output of Information Products Storage of Data Resources Control of System Performance
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System Effectiveness and Efficiency
Effectiveness: is the degree to which the right goals are achieved. Efficiency: is a measure of the use of inputs (resources) to achieve the results Doing the thing right Doing the right thing
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Recognizing Information Systems
Identify: Fundamental Components of IS: People, hardware, software, data and network resources used
Types of information products produced Input, processing, output, storage and control activities performed
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Information systems vs Information Technology
Information Systems (IS) all components and resources necessary to deliver information and information processing functions to the organization Information Technology (IT) any technology that helps to produce, manipulate, store, communicate, and/or disseminate information or in other words necessary for the information system to operate
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Computer science and information systems relationships in the business world
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Types of Information Technologies
Computer Hardware Technologies
including microcomputers, midsize servers, and large mainframe systems, and the input, output, and storage devices that support them
Computer Software Technologies
including operating system software, Web browsers, software productivity suites, and software for business applications like customer relationship management and supply chain management
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Types of Information Technologies
Telecommunications Network Technologies
including the telecommunications media, processors, and software needed to provide wire-based and wireless access and support for the Internet ,Intranet and extranet.
Data Resource Management Technologies
including database management system software for the development, access, and maintenance of the databases of an organization
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Roles of IS in Business
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Trends in Information Systems
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Role of e-Business?
Definition: The use of Internet technologies to work and empower business processes, electronic commerce, and enterprise collaboration within a company and with its customers, suppliers, and other business stakeholders. An online exchange of value.
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E-Business IT Infrastructure
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E-Business IT Infrastructure
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Enterprise Collaboration Systems
Definition: Involve the use of software tools to support communication, coordination, and collaboration among the members of networked teams and workgroups.
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What is E-Commerce?
Definition: The buying and selling, and marketing and servicing of products, services, and information over a variety of computer networks.
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Summary
Information System is an organized combination of people, procedure, hardware, software, communications networks, and data resources that collect, stores, transforms, and disseminates information in an organization. Information System Resources Information System Activities Types of IT
Hardware Software, Networking Data resource
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People, Hardware, Software, Data and Network
Input, Processing, Output, Storage and Control
End of Session 2
