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REPRESENTATION ON DIGITAL LIBRARY Internet Resources Discovery RE(IRD)

Discover the concept and advantages of digital libraries in comparison to traditional libraries. Explore the differences in evolution dynamics, object structure, and access control, among others.

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REPRESENTATION ON DIGITAL LIBRARY Internet Resources Discovery RE(IRD)

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  1. REPRESENTATION ON DIGITAL LIBRARYInternet Resources Discovery RE(IRD) Views on Digital Libraries S.K.SHARMA (K.V.IOC,HALDIA

  2. Names of the New Paradigm • Electronic Library • Virtual Library • Digital Library • Portals - Almost all, lately?! T.Sharon-A.Frank

  3. Virtual Library (1) • A "library without walls" in which the collection does not exist on paper, microform, or in any tangible form, but is accessible electronically. • Such libraries exist only on a very small scale, but in many traditional libraries, current and retrospective periodicals and some reference works are being converted to digital format. T.Sharon-A.Frank

  4. Virtual Library (2) The term digital library is more appropriate because the term virtual (borrowed from virtual reality) suggests that the experience of using such a library is not the same as the real thing, when in fact, reading or viewing a document on a computer screen may be qualitatively different from reading a printed book or periodical, but the information or knowledge imparted is the same regardless of format. http://www.wcsu.edu/library/odlis.html#virtuallibrary T.Sharon-A.Frank

  5. What is a Digital library • A library in which a significant proportion of the resources are available in digital (machine-readable) format, as opposed to print or microform. • The process of digitization began with indexes and abstracting services, then moved to periodicals and reference books, and is now entering the field of book publication. • Compare with virtual library. • http://www.wcsu.edu/library/odlis.html#D T.Sharon-A.Frank

  6. DL Services: Example University of Illinois at Urbana-Champaign: • Remote reference services. • Video-based reference services with e-mail based reference services. “We play a cultural role in the sense that librarians have traditionally applied a broader range of knowledge to pieces of information. I think it’s high tech and high touch.Bring in high tech, but give it a human face. And that face is the face of a librarian.” T.Sharon-A.Frank

  7. Advantages of a Digital Library (1) The concept "library" has been refined over several centuries. It would be injudicious to depart from what people expect merely because a digital service is replacing a material one. Except where explicit reasons suggest animprovement that is easily explained to ordinary users (e.g., in query services), library services should implement a familiar model. Many potential advantages of a digital library over a paper library are similar to those of any digital database over its paper counterpart. T.Sharon-A.Frank

  8. Advantages of a Digital Library (2) • Faster addition to the collection • Better quality control • Improved search functionality • Faster access to information found • More freedom • Reduced bureaucracy for individual users. Achieving these advantages depends not only on efforts traditionally undertaken by computer scientists, but also on the highest quality engineering for human usability. T.Sharon-A.Frank

  9. Retry - What is a Digital Library? • A managed collection of information, with associated services, where the information is stored in digital formats and accessible over a network. Arms, William, Y., Digital Libraries, MIT press, Cambridge, 2000. T.Sharon-A.Frank

  10. So the Digital Library is: • The collection of services that supports users in: • creating, dealing and sharing information. • organization and presentation of information objects. • The collection of information objects: • Available directly or indirectly for access via electronic/digital means. T.Sharon-A.Frank

  11. The Ten Dimensions The Ten Dimensions for exploring the potential differences between Traditional librariesand Digital libraries. T.Sharon-A.Frank

  12. Differences betweenTraditional and Digital libraries • Evolution Dynamics - Traditional libraries arestable and slowly evolving; digital libraries arehighly dynamic, ephemeral and versioned. • Object Structure - Traditional libraries holdatomic objects of mostly printin big crisp chunks; digital libraries holdinter-linked, multimedia objectswhich are multi-size, fractal, and ill-defined. T.Sharon-A.Frank

  13. Differences betweenTraditional and Digital libraries 3.Structure - Traditional libraries hold objects with largelyflat structure and minimal context and metainformation; digital libraries support documents withsignificant internal scaffold structure and significant context/meta informationwhich might be automatically extracted. T.Sharon-A.Frank

  14. Differences betweenTraditional and Digital libraries 4. Origin - Traditional (academic) libraries hold objects which are scholar-authored and pre-credentialledthrough a ponderous publishing stream; digital libraries allow anyone to publish in a lightweight way, and can support pre-credentialling or credentially through use. T.Sharon-A.Frank

  15. Differences betweenTraditional and Digital libraries 5. Access Control - Traditional libraries are based upon centralized control and relatively few access locations; digital libraries can be distributed and ubiquitous. 6. Object Structure - In traditional libraries the objects are physically & logically co-controlled; in digital libraries the physical and logical organizations can be separated (allows virtual collections). T.Sharon-A.Frank

  16. Differences betweenTraditional and Digital libraries 7.Free Access - The tradition of public libraries isuniversal access and free; digital libraries could be similar inthis regard, or digital libraries could supportrich layers of access controland management of terms and conditions. 8. Interaction - Traditional libraries supportone-way, loosely coupled (slow) interaction; digitallibraries supporttwo-waycommunication with tight,fast interaction. T.Sharon-A.Frank

  17. Differences betweenTraditional and Digital libraries 9. Simple Search - Traditional libraries are based upon a model ofone-way search(a consumer looking for anobject); digital libraries supportsymmetric search(consumer looking for an object an producer of the object looking for a consumer). 10. Interactive Complex Search - In traditional librariesstructured text queries(and some browsing) are used to aid intellectualaccess; in digital librariescomplex interactions of query,navigation/browsing, and socialfiltering can be used. THANKS YOU. T.Sharon-A.Frank

  18. Thank you T.Sharon-A.Frank

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