Review of the 1987 subject access literature covers: (1) general works; (2) organization, history, theory, and method of classification; (3) classification systems; (4) subject headings and the Library of Congress; (5) subject authority control through the Library of Congress Subject Headings; (6) subject searching in online catalogs; and (7)…

Describes a study that examined the occurrence of untraced references in general explanatory see references, see also references, and scope notes in the machine readable Library of Congress Subject Headings. The discussion covers the effort required to review these fields, delete unposted references and tracings, and substitute posted ones in…

Discusses topics related to use of search trees to enhance subject searching in online catalogs: subject searching in existing systems; search trees defined; highlights of a study of subject queries; normalized subject headings; the exact approach to subject searching; one-word queries; multiword queries; queries failing to produce retrievals; and…

Describes results of a study of transaction logs from three university libraries' online catalogs that analyzed subject queries to determine the extent to which they matched subject headings in the Library of Congress Subject Headings (LCSH). Computer and manual analyses are described, and user satisfaction with LCSH matches is considered. (14…

This study explored the feasibility of scanning the OCLC Online Union Catalog (OLUC) to create subject heading validation files. Concluded that automatically generated subject heading files were practical and that such files could be used to verify subject heading strings constructed by catalogers, update subject headings in catalog maintenance,…