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Studwell, W.E.: Why not an 'AACR' for subject headings? (1985)
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- Abstract
- Although the rules for descriptive cataloging have been recodified twice in the past twenty years, there never has been any kind of comprehensive theoretical code for subject headings, despite some suggestions for a code over the years. This essay explains the need for a code, provides historical background, and presents some broad proposals as to the philosophy, structure, and form of the code and what the code should cover. Included is the relation between the proposed code and the Library of Congress' 1984 Subject Cataloging Manual.
- Date
- 7. 1.2007 13:22:01
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Boll, J.J.: From subject headings to descriptors : the hidden trend in Library of Congress Subject Headings (1981)
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Dykstra, M.: Can subject headings be saved? (1988)
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Dykstra, M.: LC subject headings disguised as a thesaurus (1988)
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Chan, L.M.: Library of Congress Subject Headings : principles and application (1986)
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Dewar, M.: Restructuring the Library of Congress Subject Headings : Subject access and bibliographic instruction: two sides of the OPAC problem (1988)
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Coates, E.J.: Subject catalogues : headings and structure (1988)
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Kirtland, M.; Cochrane, P.A.: Critical views of LCSH - Library of Congress Subject Headings : a bibliographic and bibliometric essay (1981)
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Austin, D.; Digger, J.A.: PRECIS: The Preserved Context Index System (1985)
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- Abstract
- The system itself has two major aspects: - a syntactic approach in which relationships between terms are identified and tagged. Suitable algorithms for manipulation produce a very thorough index in which each head word is kept in context. - a semantic approach in which terminology is weIl defined by ensuring that the relationships of equivalence, hierarchy, and association are clearly established. Charts of relationships are created by inductive means (i.e., from the ground up). A special code for computer manipulation is used with each line of the string. This translates the string format into one that, with specially derived algorithms, can be used by the computer, to produce the actual index headings with all parts rotated by following the algorithm. The PRECIS system has been translated and utilized for languages other than English, notably French, German, and Danish. Modifications needed for idiosyncracies of each language have been made. Some, such as those modifications needed for German, have turned out to have usefulness with English as weIl. All in all, the system has such advanced indexing concepts that it provides a kind of indexing not possible before the computer came into common usage. Austin, who joined the staff of the British National Bibliography in 1963, is currently a member of the British Library staff. His early work included a NATO-sponsored research assignment for the Classification Research Group (q.v.). This, in turn, led to the development of PRECIS.
