Page 119 - DLIS006_INFORMATION SOURCES AND SERVICES

Information Sources and Services

Notes Objectives

After studying this unit, you will be able to:

Explain the concept of Document Delivery Services (DDS)
List the models in Document Delivery
Identify the challenges and issues in Document Delivery
Explain the concept of Vendor Scorecard
Discuss the meaning and concept of Online Service in Library Services

Identify new Web-Based Library Services
Introduction

The web was designed as an information space, with the goal that it should be useful not only for
human – human communication, but also those machines would be able participate and help.
One of the major obstacles to this has been the fact that most information on the web is designed
for human consumption, and even if it was derived form of a database with well-defined meanings
for its columns, that the structure of the data is not evident to a robot browsing the web.
The question is doing the library users happy with the online approach? Yes most of the web
based library service provider is getting a lot of feedback from their effective users. So libraries
also introducing more and more services on the web, a tremendous amount of content and the
system has had some continuity over time.
As the Internet grows ever larger, the sheer quantity of textual information continually increases.
Basic text, in ASCII, HTML, PDF, probably makes up the bulk of the information.

Equal opportunity for access to all.
Information sharing for any number of users at any time.
Provides a distributed information system.
Move to owning model to access model.

Exchange of electronic mail and other data files in a wide area environment.
On-line real time interaction with other network users.
Participation in electronic media mailing lists and conferences.

Receipts and delivery of electronic publication.
Access to data stored on remote computers.
Access to remote scientific computing equipment such as super computer, remote sensing
equipment telescope, graphic processors.

Access to wide selection of public domain and shareware software.
6.1 Document Delivery Services (DDS)

Document delivery services (DDS) provide individual customers and users with copies of
documents (mainly articles published in scientific journals) on demand. Document delivery (or
IAS: individual article supply) is offered by a wide variety of service providers: libraries (public,
private, university), scientific institutions and laboratories, commercial document suppliers,

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