Subject gateways and portals are Internet services that facilitate systematic resource discovery. Subject gateways provide links to quality-controlled resources in a specific subject area, while portals aggregate diverse information from different sources into a single access point. Both services emerged in the late 1990s in response to the growing amount of online information and need to guide users to relevant resources. They continue evolving to better integrate information and meet modern user demands.

1. Jyoti Singh .S.
Subject Gateways
&
Portal

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.

3. •Concept
Browsed
Searched
Quality Controlled

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)

5. •Characteristics
Online service
Intellectual Process
Subject Description
Facilitates Navigation
Series of Meta Data
Bibliographic Meta Data
Print and Electronic Resources

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

12. Benefit
&
Limitation
Benefit Limitation
Provide Connectivity Expandability
Competitive Bidding Dissimilar Concept
Isolation Configuration and
programming
Interconnection

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

17. Feature
Security
Access different data
Search
Personal content
Publish Content

18. What a portal is not
Internet
Extranet
Groupware
Knowledge management solution
Groupware

19. Types

20. Major portal contenders
Alta vista
Excite
Infoseek
Lycos
Microsoft internet start
Yahoo

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.