1995•Cataloging & Classification QuarterlyRequires access

Ambiguities in the Use of Certain Library of Congress Subject Headings for Form and Genre Access to Moving Image Materials

David Miller

Abstract

Some Library of Congress Subject Headings have the potential to be used for either subject or form/genre access. A selection of LCSH, cognates with terms from Moving image materials: Genre terms, was searched in OCLC's Online Union Catalog to determine the degrees to which they were used for each of these two types of access. It was discovered that the set of "subject headings" under study was used for form/genre access between 6% and 99% of the time, with a mean average of just over 50%. The guidance provided to catalogers by information contained in Library of Congress authority records is also discussed.

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Key concepts: Library of congress, Subject (documents), Subject access, Cataloging, Computer science, Library of Congress Classification, Controlled vocabulary, Information retrieval