Page 86 - DLIS006_INFORMATION SOURCES AND SERVICES

Unit 4: Information Services and Products

Information dissemination is a proactive information service designed to educate and Notes
inform focused groups of users on social, economic and educational issues, problems, and
opportunities of interest to them.
Modem libraries and information centres offer a variety of new documentation and
information services to provide support to Research and Development, industrial
productivity, management, marketing and trade, all programmes of development of
governments and institutions, etc.

Selective dissemination of information (“SDI”) was originally a phrase related to library
and information science. SDI refers to tools and resources used to keep a user informed of
new resources on specified topics.

4.10 Keywords

Conceptual Information: The ideas, theories, hypothesis about the relationship which exists
among the variables in the area of the problem.

Directive Information: Group activity cannot proceed effectively without coordination, and it is
through directive information that this coordination is achieved.
Empirical Information: Experience or the data of research may be drawn from one's self or,
through communication, from others. It may be laboratory generated or it may be the product
of "literature search".
Information Service: It is this part of an Information System that serves data/knowledge/
information to customers and collects it from its contributors, to manage and store it by optionally
using administrators.
Information System: It is any combination of information technology and people's activities
using that technology to support operations, management, and decision-making.

Policy Information: This is the focus of the decision-making process. Collective activity
necessitates the definition of objective and purpose, the fixing of responsibility, the codification
of rights and privileges and the delineation of function.
Procedural Information: This is the methodology which enables the investigator to operate
more effectively.
Stimulatory Information: Man must be motivated and there are two sources for such motivation,
himself and the environment.

4.11 Review Questions

1. Explain the origin of Information Service.
2. Define the concept of Information Service.
3. Differentiate between Information Service and Reference Service.
4. Discuss the role of Information Officer.
5. Compare and contrast between Information Officer and Librarian.

6. Explain how dissemination of Information takes place.
7. Define the concept of Current Awareness Services (CAS).
8. Describe the Concept of Selective Dissemination of Information.

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