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| Main Authors: | , |
|---|---|
| Format: | Recurso educativo Open Access |
| Language: | en |
| Published: |
1973
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| Subjects: | |
| Online Access: | https://eric.ed.gov/?id=ED087454 |
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Table of Contents:
- Retrieval of ERIC Files. An On-Line Approach. McIsaac, Donald N. Olson, Thomas Computer Programs Computer Science Information Retrieval Information Storage Information Systems Online Systems Program Descriptions A description is provided for WISE-ONE, an information retrieval program designed to provide fast, efficient access to computer-based information files. The author focuses upon WISE-ONE's application to the Educational Resources Information Center's (ERIC) data base; WISE-ONE was designed specifically to meet the needs of researchers using ERIC, but its logic is sufficiently general to accommodate other computer-based library systems. The author first reviews ERIC's history, its products, and its thesaurus. Following this, the binary tree and index sequential file approaches to data structuring are discussed, and their disadvantages brought to light. Next, the hash coding method of data base entry is described, the conclusion is reached that it provides the best approach to the data base. Finally, the use of Boolean Operators is discussed and means of updating files are considered. (PB)