Presents the conceptual design of a full-scale bibliographic database that includes bibliographic, authority, holdings, and classification data and is based on entity-relationship modeling. MARC format, AACR2 (Anglo-American Cataloging Rules) compatibility, and normalization and efficiency are discussed. (Author/LRW)

Discusses categorization of MARC records, noting problems which arise because formats have not been defined as distinct sets of content designators. Bibliographic and authority record formats, merging of formats into single format, removal of inconsistencies, and criteria for identifying categories of records are considered. Thirty-one references…

Reports results of a study that examined Library of Congress topical subject headings and subdivisions in a large bibliographic database. Creation of a new machine-readable authority file of topical subdivisions and enhancements to the existing subject authority file are recommended to assist in assignment and validation of subdivided headings.…

Discussion of the newly developed USMARC Format for Classification Data covers online classification applications, format development, fields in the format, and implementation prospects. Research currently being conducted at the Library of Congress to evaluate the new format and the editing process necessary for its implementation is described.…

Presents overview of library classification and automation (1940-84), including use of Dewey Decimal and Library of Congress classification in online cataloging systems. Highlights include classification number access in existing online catalogs, functions of classification records, specifications for authority file records, and the nature of…