What is Information Retrieval?

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Information Transfer Cycle

*	The user community
*	Authorship
*	Primary publicaiton
*	Primary distribution
*	Acquisition by information centers
*	Organization & Control
*	Secondary publication
*	Secondary distribution
*	Acquisition by users

Information Services

Types of Information Need

Information Retrieval Systems

*	Input
*	Organization & Control
*	Output

Information Path

Matching Information Needs Against Messages

What is Information Retrieval?

Copyright © 2010 C. Herbert Carson
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Information retrieval is the process of searching some collection of documents to identify those that deal with a particular subject. Following is a model describing the information transfer cycle.

Model Details ->