Discussion of subject access through classification number searching in online library catalogs highlights the present classification climate, increased potential for classification retrieval, effect of past and present practice on effectiveness of class number access, and proposals for action. Thirty-two sources are given. (EJS)

Describes operational use of on-line field access, a powerful improvement upon search key access to on-line records and a viable alternative to full key word access; and discusses some of the questions considered at Northwestern University Library during a redesign of the technical services modules of the Northwestern On-Line Intergrated System…

Recommends an expansion of MARC codes for decimal class numbers to enhance automated subject retrieval. Five values for a second indicator and two new subfields are suggested for encoding hierarchical relationships among decimal class numbers. Additional subfields are suggested to enhance retrieval through analysis of synthesized numbers in…

Arguing that inadequacy of subject access in online catalogs lies with the database used as a foundation, this essay discusses the weaknesses of Library of Congress subject cataloging and MARC records, electronic card catalogs, enhancement of data, publisher warnings, Boolean search strategy inadequacies, and changes in the national standard. (EJS)

Explores methods and costs of the retrospective conversion process, i.e., converting card catalog records into machine readable form to create an automated catalog. Data conversion standards, methods, search strategy, databases, verification and editing, costs, and products of conversion are noted. Thirty-two references are cited. (EJS)

Discusses applications of a microcomputer in the Mountain View Elementary School Library in Colorado, noting costs and effectiveness involved in the development and use of a computerized card catalog and librarian aid with tasks such as filing, typing, ordering, and inventory. A bibliography is provided. (EJS)

This article examines the role of authority control in an online environment. Topics covered include a definition of authority control, the relationship between authority control and catalogs, current school of thought regarding the need for authority control, and other models of data administration. Twenty-three references are cited. (Author/EJS)

Four artificial intelligence (AI) concepts that have relevance for information retrieval systems are discussed and applied to area of authority control in automated catalogs--pattern recognition, representation, problem solving, learning. Existing automated authority control systems are analyzed using two other AI concepts, augmentation and…

This essay addresses issue of uniformity or consistency in application of subject headings--as distinct from consistency among headings--to books on any given topic. Discussion covers purpose of subject headings or descriptors, reliability of choices made by catalogers when assigning subject headings, and card and online catalogs. (18 references)…

The "Purchase Order and Original Cataloging" (PO/OC) module is one of 11 units that make up the Bibliographic Automation of Large Library Operations Using a Time-sharing System (BALLOTS) used in the Stanford University Libraries. As part of this on-line, interactive system, the PO/OC module provides for the computerized production of…

This paper analyzes proposals for augmenting library bibliographic records for improved subject searching in online catalogs by providing access to parts of books. Arguments for and against adding book content indexing, possible fields for enrichment, and feasibility of 11 alternatives for providing such information are presented. Twenty-two…

Reports the results of research that used descriptor subfiles in the online version of "MLA Bibliography" to quantify literary warrant in the domain of scholarly work about fiction. Topics discussed include domain analysis; the interaction between literary works, scholars, and library classification systems; and further research…

Describes four major subsystems of OCLC's LS/2000, an integrated local library system which can be adapted to wide variety of library environments: multibranch circulation and online catalog searching; online cataloging and authority file maintenance; management report generation; and system set up parameters that translate local library policy…

Prepared for consideration by the Network Technical Architecture Group (NTAG), a subcommittee of the Library of Congress (LC) Network Advisory Group, this document describes the study and development of text formats for the message delivery system of a nationwide library bibliographic network. Following a discussion of network considerations of…

Through a single computerized system, the Libraries Information Access System provides interactive, integrated access to a range of information functions in support of services meeting both academic needs (bibliographic access for research, instructional support) and administrative needs (processing, inventory control, communications, record…