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Digital Libraries: Functionality, Usability, and Accessibility
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University of Nebraska - Lincoln
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Library Philosophy and Practice (e-journal) Libraries at University of Nebraska-Lincoln
5-27-2010
Digital Libraries: Functionality, Usability, and
Accessibility
Mayank Trivedi
Sardar Patel University, spulib@yahoo.com
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Trivedi, Mayank, "Digital Libraries: Functionality, Usability, and Accessibility" (2010). Library Philosophy and Practice (e-journal).
Paper 381.
http://digitalcommons.unl.edu/libphilprac/381
Library Philosophy and Practice 2010
ISSN 1522-0222
Digital Libraries: Functionality, Usability, and Accessibility
Dr Mayank Trivedi
University Librarian
Sardar Patel University
Vallabhvidyanagar-388120, Gujarat, India
Introduction
Rapid advances in information technologies have revolutionized the role of libraries. As a result,
libraries face new challenges, competitors, demands, and expectations. Libraries are redesigning
services and information products to add value to their services and to satisfy the changing information
needs of the user community. Traditional libraries are still handling largely printed materials that are
expensive and bulky. Information seekers are no longer satisfied with only printed materials. They want to
supplement the printed information with more dynamic electronic resources. Demands for digital
information are increasing.
Digital libraries will start gaining ground in India in the present century. We are heading toward an
environment in which digital information may substitute for much print-based information. A library's
existence does not depend on the physical form of documents. Its mission is to link the past and the
present, and help shape the future by preserving the records of human culture, as well as integrating
emerging information technologies. This mission is unlikely to change in the near future.
Digital libraries come in many forms. They attempt to provide instant access to digitized
information and consist of a variety of information, including multimedia.
Definition
A digital library is a library in which collections are stored in digital formats (as opposed to print,
microform, or other media) and accessible by computers. The content may be stored locally, or accessed
remotely. The first published use of the term may have been in a 1988 report to the Corporation for
National Research Initiatives. The term was first popularized by the NSF/DARPA/NASA Digital Libraries
Initiative in 1994. Bush (1945) created a vision based on experience (“Digital library.”)
The Digital Library Federation defines digital libraries as:
Organizations that provide the resources, including the specialized staff, to select, structure, offer
intellectual access to, interpret, distribute, preserve the integrity of, and ensure the persistence
over time of collections of digital works so that they are readily available for use by a defined
community or set of communities. (Shiri 2003)
The DELOS Digital Library Reference Model defines a digital library as:
An organization, which might be virtual, that comprehensively collects, manages and preserves
for the long term rich digital content, and offers to its user communities specialized functionality
on that content, of measurable quality and according to codified policies. ("Digital Library”)
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“Digital Libraries: Functionality, Usability, and Accessibility,” Dr Mayank Trivedi. Library Philosophy and Practice 2010 (May)
A digital library is not a single entity. It requires technology link the resources of many collections.
The links between digital libraries and their resources are transparent to users. Digital library collections
are not limited to document surrogates (bibliographic records. They are the actual digital objects such as
images, texts, etc.
Lynch (1994) says that, “digital Libraries ... [provide] users with coherent sccess to a very large,
organized repository of information and knowledge.” According to Berkeley Digital Library Project,
University of California, the digital library will be a collection of distributed information sources. The
contrast between traditional and digital libraries is presented below
Traditional Libraries Digital or Electronic Library
Print collection All resources in digital form.
Stable, with slow evolution Dynamic and ephemeral
Individual objects not directly linked with each
Multi-media and fractal objects
other.
Flat structure with minimal contextual Scaffolding of data structures and richer contextual
metadata metadata.
More than scholarly content with various validation
Scholarly content with validation process
processes
Limited access points and centralized Unlimited access points, distributed collections and
management access control
The physical and logical organization
The physical and logical organization may be virtually
correlated.
One way interactions Dynamic realtime dialogue
Free and universal access. Free as well as fee based.
Characteristics of Digital Libraries
Recent developments in library technology and practices have helped bring some of Lancaster 's
paperless society to reality. The effects that digital technology has brought include: (Jebaraj and
Deivasigimani 2003)
Digital library collections contain permanent documents. The digital environment will enable quick
handling and/or ephemeral information. Digital libraries are based on digital technologies. The
assumption that digital libraries will contain only digital materials may be wrong. Digital libraries are often
used by individuals working alone. The physical boundaries of data have been eliminated. Support for
communications and collaboration is as important as information-seeking.
Compression of data storage is enabling publication and storage of digital information.
Telecommunications is facilitating the storage, retrieval, use, and exchange of digital resources.
Function of Digital Library
Access to large amounts of information to users wherever they are and whenever they need it.
Access to primary information sources.
Support multimedia content along with text
Network accessibility on Intranet and Internet
User-friendly interface
Hypertext links for navigation
Client-server architecture
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“Digital Libraries: Functionality, Usability, and Accessibility,” Dr Mayank Trivedi. Library Philosophy and Practice 2010 (May)
Advanced search and retrieval.
Integration with other digital libraries.
Purpose of Digital Library
Expedite the systematic development of procedures to collect, store, and organize, information in
digital form.
Promote efficient delivery of information economically to all users.
Encourage co-operative efforts in research resource, computing, and communication networks.
Strengthen communication and collaboration between and among educational institutions.
Take leadership role in the generation and dissemination of knowledge
Components
The components of a digital library are:
Infrastructure
Digital Collection
Systems function
Telecommunication facility
Human resources
Planning for Digital Library
A digital library committee should be formed to plan for its creation and maintenance. The
members must be from various library departments, and, if necessary, consultants can be hired. There
are at least two ways of developing a digital library: converting a traditional library into a digital library, and
direct development of a digital library.
Planning includes:
IT Infrastructure
Digitization
Access
Staffing
Furniture, equipment, and space
Services
Funding
Creation of Digital Resources
Database of digital material that is open to all users over the campus-wide LAN.
High bandwidth Internet connectivity
Focus selectively on acquiring digital resources
Electronic journals, and gradual elimination of print subscriptions
Licensed databases
Creation of local digital content available within the university
Advantages of a Digital Library
The advantages of digital libraries include
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“Digital Libraries: Functionality, Usability, and Accessibility,” Dr Mayank Trivedi. Library Philosophy and Practice 2010 (May)
Nearly unlimited storage space at a much lower cost
Re-allocate funds from some staff, collection maintenance, and additional books.
No physical boundary
Round the clock availability
Multiple access
Enhanced information retrieval.
Preservation for some print material
Added value
Universal accessibility
Limitations
Lack of screening or validation
Lack of preservation of a fixed copy (for the record and for duplicating scientific research)
Lack of preservation of “best in class”
Difficulty in knowing and locating everything that is available, and differentiating valuable from
useless information.
Job loss for traditional publishers and librarians
Costs are spread and many become hidden.
Digital Library Initiatives in India
India is in the experimental stages of digital libraries. Barring the Health Education Library for
People (HELP), Mumbai, the Tata Institute of Fundamental Research (TIFR), Mumbai, IIT Kharagpur, and
National Centre for Science Information (NCSI), Bangalore, a majority of libraries provide bibliographic
access only. IASLIC-LIST and the LIS-FORUM, along with the electronic newsletter, INFOWATCH
provide professional information. Information today and Tomorrow , INFLIBNET Newsletter , and the
DESIDOC Bulletin of Information Technology (D-BIT) are a few other sources of current information on
the use of ICTs and networks in India. Research and development activities regarding digital libraries are
being undertaken in some institutions, for example, at the Education and Research network (ERNET) of
Department of Electronics, Gol ( http://www.doe.ernet.in ) and the electronic library being developed at
the Indian National Scientific Documentation Centre (NISCAIR), New Delhi ( http://www.NISCAIR.org ). A
brief account of some of the resources and services is presented below.
Searchable databases on the web from Central Library of Indian Institute of Technology,
Kharagur (IIT-Kgp) ( http://144.16.192.18 or http://libweb.iitkgp.ernet.in )
Digitization at IIT-Kgp Library initiated at the beginning of 1990s. IIT-Kgp is one of the six premier
institutions of quality education in engineering and technology, the Indian Institute of Technology
(IITs).
Electronic current awareness bulleting „Infowatch' beginning in July 1996 by the University Grants
Commission (UGC). ( http://144.16.72.150/ncsi/iw.html )
LIS-FORUM, a discussion forum sponsored by NCSI, Bangalore.
(http://144.16.72.150/ncsi/services/lis-archive.html )
Development of OPACs in many libraries such as Centre on Rural Documentation CORD of
National Institute of Rural Development (NIRD), Hyderabad ( http://www.nird.org/clic/index.html
and http://www.nird.org/clic/L.html )
Index of Hitesranjan Sanyal Memorial Collection (HSMC) at the Centre for Studies in Social
Sciences (CSSS), Calcutta. ( http://www.iisg.nl/asia/cssc.htm and
http://www.socialsciencecal.org)
Health Education Library for People (HELP), in Mumbai. HELP is a privately managed site
providing health related information and managing an online catalogue of over 15,000 documents
( http://www.healthlibrary.com )
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“Digital Libraries: Functionality, Usability, and Accessibility,” Dr Mayank Trivedi. Library Philosophy and Practice 2010 (May)
The situation in India regarding digital libraries is very peculiar. Many government agencies, as well as
institutions, mostly in the public sector, are engaged in some sort of work regarding the digitization of
libraries. Examples clearly indicate that the potential of ICTs for developing digital libraries has not been
fully realized by the GoI. While one government agency is providing support for one particular aspect, the
other is focusing elsewhere, without any coordinated effort by a nodal agency.
Conclusion
There will be continuing expansion of digital library activities. LIS and computer science
professionals face challenges that will lead to improved systems. More and more libraries will have
departments and programs in the digital library arena. Digital libraries will build upon work being done in
the information and data management area. Digital libraries provide an effective means to distribute
learning resources to students and other users. Planning a digital library requires thoughtful analysis of
the organization and its users, and an acknowledgement of the cost and the need for infrastructure and
ongoing maintenance (Adams, Jansen, and Smith 1999). Digital Libraries present opportunities and
challenges for the library and information communities and all stakeholders.
References
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