Web based Information Services for Engineering Science and Technology

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Web based Information Services for Engineering
Science and Technology
I R N Goudar Head Information Centre for
Aerospace Science Technology NAL, Bangalore
560 017 goudar_at_css.nal.res.in
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The Internet offers a gateway to a myriad of
online databases, library catalogues and
collections, and software and document archives,
in addition to frequently used store-and-forward
services, such as UserNet News and e-mail
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• Web An Ideal Media and Source of Information
• WWW provides hypertext access to documents
  located anywhere on
• the Internet.
• Web facilitates combination of text, pictures,
  sound, animation and
• video.
• Many varying information systems are tied into a
  homogeneous
• browsable, searchable web.
• Efficient information delivery.
• Information on desktops of users.
• Vast majority of Internet services are free for
  taking.

Contd...
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• Net is equal opportunity provider without caste,
  creed, colour, belief,
• etc.
• Physical disabilities dont matter for usage of
  sources.
• Net requires motivation and motivated learning
  is much more fun.
• Information sharing with global dimensions.
• WWW is a very successful distributed
  information system.
• New dimension and new responsibility for
  Library Information
• Science Profession.

Contd...
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• Easy way to get access to Government produced
  information.
• Integration of local and remote Library
  Information services using
• web browser as a common user interface.
• Internet is forcing libraries to move from
  Owning models to Access
• models.
• IP enabling for accessing information databases.
• Facilitates keeping abreast of rapidly changing
  data.

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Internet Access Vs CD-ROM Access
Criteria Internet Access CD-ROM Access
Currency Generally more current Depends on
update frequency Retrieval
Depends on many factors Better search
capabilities Ease of Access Slow access
affects CD-ROM networks should web databases
be immune Maintenance Less
maintenance More especially when
networked Platform Independent Run
on particular platform dependency
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• Internet Some Interesting Statistics
• Over 350 million users today
• Will cross a billion mark by 2005
• 150 million likely to get connected in 2000
• Eastern and southern European prefer Wireless Web
  Access on cell phones and palmtops
• UNs Human Development reveals that 88 of
  Worlds Internet users are in wealthy and
  developed nation
• Adult sites were a 1 billion industry in 1998
• Teens 25 visit X-rated sites
• 51 of American classrooms have net connection

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Internet Domain Survey-Number of Internet Hosts
DATE HOSTS 10/1990 313,000 01/1991
376,000 07/1991 535,000 10/1991
617,000 01/1992 727,000 04/1992
890,000 07/1992 992,000 10/1992
1,136,000 01/1993 1,313,000 04/1993
1,486,000 07/1993 1,776,000 10/1993
2,056,000 01/1994 2,217,000
DATE HOSTS 07/1994 3,212,000 10/1994
3,864,000 01/1995 4,852,000 07/1995
6,642,000 01/1996 9,472,000 07/1996
12,881,000 01/1997 16,146,000 07/1997
19,540,000 01/1998 29,670,000 07/1998
36.739,000 01/1999 43,230,000 07/1999
56,218,000 01/2000 72,398,092

DATE HOSTS 08/1981 213 05/1982
235 08/1983 562 10/1984
1,024 10/1985 1,961 02/1986 2,308 11/1986
5,089 12/1987 28,174 07/1988
33,000 10/1988 56,000 01/1989 80,000 07/1989
130,000 10/1989 159,000
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What Users Do on the Internet Activity
Internet users

(percent) Email 90 General
information 77 Surfing 69 Reading 67
Hobbies 63 Product information 62 Travel
information 54 Work/Business 46 Entertainm
ent/Games 36 Buying 36 Stock quotes 27
Job search 26 Chat
rooms 24 Homework 21 Auctions 13 B
anking 12 Trading stocks 7
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Top Web Sites (May 2000) Rank Web site Unique
visitors (thousands) 1. AOL
Network 59,230 2. Microsoft
sites 49,309 3. Yahoo sites 48,851 4. Lyco
s 32,475 5. Excite_at_Home 28,751 6. GO
Network 23,065 7. About.com
sites 17,926 8. NBC Internet 16,489 9. Ama
zon 14,972 10. Time Warner
Online 14,256 11. AltaVista Network 14,183
12. Ask Jeeves 13,319
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Top Shopping Sites (May 2000) Rank Web
site Unique visitors
(thousands) 1. Amazon.com 14,040 2. Blue
Mountain eCards 13,042 3. eBay.com 12,046 4.
AOL Shoppping Channel 11,419 5. AmericanGreetin
gs.com 7,243 6. MyPoints.com
5,528 7. Barnes Noble.com
5,167 8. Webstakes.com 4,922 9. BizRate.com
4,908 10. Priceline.com 4,768
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Top Education Sites (May 2000) Rank Web
site Unique visitors
(thousands) 1. University of California,
Berkeley 1,733 2. University of
Michigan 1,550 3. University of
Texas at Austin 1,455 4. Massachusetts
Institute of Technology 1,331 5. University of
Illinois at Urbana-Champaign 1,261 6. Harvard
University 1,215 7. University of
Tennessee 1,168 8. University of North
Carolina at Chapel Hill 1,135 9. Cornell
University 1,098 10. University of
Virginia 1,017
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Top Government Sites (May 2000) Rank Web
site Unique visitors (thousands) 1. NAS
A 1,945 2. State of California 1,808 3. Na
tional Institutes of Health 1,694 4. National
Oceanic and Atmospheric 1,683 Administration 5
. U.S. Department of Education 1,344 6. U.S.
Navy 1,192 7. U.S. Army 1,148 8. Library
of Congress 1,061 9. National Park Service
947 10. U.S. Geological Survey 936
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Media Content Internet
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Listservs and Discussion Groups
Government Resources
Subject Databases
Community Information
Information Services at Remote sites
Library Catalogues
Bulletin Boards
Commercial Resources
Document Delivery
Shopping and other Commercial transactions
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• Library Websites - Why?
• Facilitate and promote library use
• Basic information about library and its services
• On-line access to local sources
• Gateway to networked information sources
• Integrate Push-based services

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Uses of Internet Access in Libraries
Networked CD-ROM Databases
Basic Library Information Services
Links to remote information
Interactive homepages
Library Website Applications
OPAC
ILL Document Delivery
Document Acquisition
Indexing, Cataloguing Classification
Push-based services
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• Library Website Development
• Design
• Authoring Testing
• Launch
• Maintenance

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Library Website - A case study of ICAST, NAL
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• Listservs Discussion Group
• Variety of topics
• Exchange current information
• Conduct a dialogue
• Particular interest to information managers

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• Subject Databases
• Especially from RD/Academic institutions
• Number is increasing
• Ex India Universitys Biology files

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• Community Information
• Usually through public libraries
• Catalogue of local public libraries
• Tour of art gallery
• Tourist Information
• Weather bulletins

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• Government Resources
• National and local governments
• Legal information
• Government institutions
• Ex NICs site

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• Library Catalogues
• Increased number of catalogues on net
• Usually large university libraries and public
  libraries
• Few Indian too

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• Shopping Other Commercial Transactions
• Shopping Malls
• On-line Book Shop
• Amezon
• Music, CDs, gifts, toys, etc.

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• Document Delivery
• Libraries, Publishers, other agencies
• OCLC, BLDSC
• ISI, NTIS
• UMI, National Translation Centre
• Derwent, AIAA, etc.

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• Basic Library Information Services
• Applications
• Library hours
• Contact persons
• Policy/Plan Documents
• Quality Manuals
• Calenders
• Direct e-mail link for sources
• Databases
• Contents pages
• Access
• Browse Select
• Content Format
• Text (HTML, PDF, ASCII), Audio(WAV), Images (GIF,
  JPEG), Video (AVI, MPEG)

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• Networked CD-ROM Databases
• Platform independent access to windows
  application on the net
• Ex Citrixs Metaframe using ICA
• List of networked databases and access using
  browsers
• Trend is towards hard disc hosting
• Ex ERL, OVID

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• Links to Remote Information
• Connection to resources around the world
• Links to Internet sites of relevance to its users
• Links to commercial databases
• Full text, Bibliographic
• Internet Public Library
• Links to other library catalogues
• Links to frequently used bookmark files

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• OPAC
• Non - web enabled OPACs
• Telnet access
• Export OPAC records into text files, index using
  web-enabled softwares like MG, Free WAIS.
• Web - enabled databases

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• Indexing, Cataloguing Classification
• Contents of book request form - Catalogue data
• Remote access to catalogues data
• Access to thesauri and controlled vocabularies

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• Document Acquisitions
• Links to publishers catalogues (books, journals,
  etc)
• Links to books databases
• Book sellers sites
• Journals Distributors
• Online shops (Amazon)
• Book request forms

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• Push-based Services
• Current Awareness Service
• List of Applications
• Hosting on web
• E-mail delivery
• Profile based alert services
• SDI
• Table of Contents
• Web Alert Service
• Web hosting
• E-mail delivery

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• ILL Document Delivery
• Public access catalogues of other library
• In-built request forms
• Document Delivery

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• Interactive homepages
• Fill-in form for services feedback
• Reservation of library material
• Circulation
• Inter Library Loan
• Reference question

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• Design
• Content
• Content formats
• Audience
• Structuring navigation
• Layout
• Site search (Tools like SWISH)
• Site map and site index
• Feedback help

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• Authoring Testing
• HTML Editor
• Netscape Navigator Composer
• Microsoft Front Page
• Dreamweaver
• Template - based design for large sites

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• Launch
• Quality Testing
• usability, consistency, accuracy, compatibility
• Publicity
• Site registration
• Links by other sites

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• Maintenance
• Updating
• Analysis of
• Link updation
• Back ups, trouble shooting
• Periodic testing