2. Definition
Subject gateways are Internet
services which support systematic resource
discovery. They provide links to resources
(documents, objects, sites or services),
predominantly accessible via the Internet. The
service is based on resource description.
4. Origin
Beyond Book Marks (Mckiernan, 1996).
DESIRE I (Development Of a European Service
for Information On Researchers and Education)
(1997)
DESIRE II (1999-2000)
6. objective
Promote
Provide Current Information
Provide Access to online & CD.ROM
Provide quality of information
Provide links of number of other site or
document
7. Search Engine
v/s
Subject Gateways
Search Engine Subject Gateways
General resources are available It is a gathering place of discipline
specific resources.
It totally depends on the powerfulness High leveled of human input is there, as
of the selected search engine along selected resources must meet a number
rhythm. of criteria applied by a librarian or
academic, who ensure that only high
quality ,relevant resources are included in
the database.
The result can be overwhelming, The result are specific, precise, and
unmanageable ,full of irrelevant linked to relevant documents.
references and are often too creative to
meet user need.
8. •Why library should go for subject
Gateways?
NaturalMetaphor
Browsing ,Reference desk.
Guiding & helping users.
9. •Initiative of subject gateways
Libraryspot.com:(http://www.libraryspot.com/)
Liberians`index to the internet(LII) (http:lii.org/)
Argus clearing House(http://www.clearinghouse.net/)
Galaxy(http://galaxy.einet.net/)
10. •Types
General Subject gateways::
Google Directory
Yahoo! Directory
wwwvirtual library
Academic Subject gateways::
Ipl.org( Internet public library)
Infomine
Academic info
11.
12. Benefit
&
Limitation
Benefit Limitation
Provide Connectivity Expandability
Competitive Bidding Dissimilar Concept
Isolation Configuration and
programming
Interconnection
13.
14. What is portal
• Portal provide diverse information in a unique
and Unified way.
• Portlet: Area dedicated on the Portal for
displaying information.
• It is a single point of access to information from
different sources.
15. Need
• Cope with growing demand of user.
• For resolving information overload
encountered by the user.
16. What a Portal Does
Enable Universal log in
Integration to other system
Facilitates messaging and notification
Facilitates multi-channel consistency
21. What is future trend?
• Hype cycle:- Graphic representation of
maturity, adoption and social application of
specific technologies.
• Future growth of Portals have been greatly
shown in the hype cycle reports.
• Analyst’s reports had inquire the future
development of portals.