Page 106 - DLIS407_INFORMATION AND LITERATURE SURVEY IN SOCIAL SCIENCES

Unit 12: Database: Networked and Distributed Database in Social Science

that most of the needs of a library will be satisfied within the subgroups of which it is a member”. Notes
Distributed database technology is one of the most important developments of the past decades.
The maturation of database management systems (DBMS) technology has coincided with significant
developments in distributed computing results the emergence of Distributed Database Management
Systems (DDBMS). Distributed database is a logical database that is physically divided among
computers at several sites on a network. A distributed Database Management System is a database
management system capable of supporting and manipulating distributed databases.

Did u Know? What is the importance of distributed management system?
The distributed database management systems have started to become
the dominant management tools for highly intensive applications.

12.1.1 Need and Purpose

Some of the factors that are essential for the formation of networks are:
1. It makes possible timely access to reliable and precise information which is crucial for the
developmental activities of the nation.
2. It makes possible the selection, processing, organization and dissemination of world literature
easier. Moreover relevant information can be scanned regularly for use by researchers and
personnel engaged in R&D activities.
3. The number of users served may be infinite.
4. It ensures access to information sources without any financial limitation on individual libraries
and the difficulties caused by rising price of reading material.
5. A number of libraries working in co-ordination can eliminate some purchasing and processing
costs, as well as, avoid unnecessary duplication of documents.
6. Network enable global access to international databases and information centres, with the
help if computer application and communication technologies.
7. The new techniques developed world work in information handling and library services can
be better utilized as compared to that of a particular library.
8. Network acts as a bridge in reducing the gap between the available information and the
users of information.

12.1.2 Objectives

The objectives of an information network may be stated as follows;
y Promotion of resource sharing among the libraries through computerized networking, for
maximum use of resources.
y To assist member libraries in cataloguing of books, serials, non-book material and catalogue
production.
y To facilitate and promote delivery of documents manually or mechanically.
y To co-ordinate efforts for suitable collection development and reduce unnecessary
duplication.

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