Describes a study that examined the effectiveness of implied boolean searches using personal author surnames plus first and/or last title words to retrieve an entry from a simulated online public access catalog (OPAC). Implications for the design of OPACs are discussed, and further research is suggested. (LRW)

An online catalog was introduced at Georgia State University in September 1985. Prior to its introduction, a study was conducted at Pullen Library to prepare for bibliographic instruction for catalog use. In the summer of 1985, 50 patrons were observed and interviewed as they used the library's card and/or computer output microfiche (COM)…

Discusses the traditional alphabetical arrangement of library card catalogs and suggests this order should be reconsidered in online catalogs. Online searching in library catalogs is described; the ordering of records in online catalogs is examined; and filtering is considered as a method to order retrieved sets of bibliographic records. (Contains…

This study examines precision and recall for title and keyword searches performed in the "FirstSearch" WorldCat database when keywords are used with and without adjacency of terms specified. A random sample of 68 titles in economics were searched in the OCLC (Online Computer Library Center) Online Union Catalog in order to obtain their…

This report describes a computer-monitoring study of users of the Ohio State University Libraries' online catalog, an established and heavily used information retrieval system. Designed for end users, online library catalogs require little or no formal training, and often replace an existing manual system. Data were gathered unobtrusively by…

Discusses ability of small computers to hold interface programs, to retrieve data from central source, to manipulate and present that data, and to engage in dialog with system user. An example of a feasible dialog between user and system which mediates and translates user's data into machine terms is highlighted. (EJS)

Explains rationale behind proposed voluntary U.S. standard computerized library catalog called the "Uniform Catalog." Design goals (should mimic manual card catalog, offer simplicity of operation and low overhead, permit modular growth to more advanced catalog), sample search, and nine commands and functions used by "Uniform…

Discussion of online public access catalogs focuses on a study that evaluated 3 different systems in Great Britain. Comparative evaluations were made using structured exercises to determine searching techniques and transaction logs to investigate user behavior. Comments on future research are also given. (12 references) (LRW)

Describes how to help high school students use online college library catalogs. A workbook incorporating the following information was developed: technological information; geographic information; scope of database and levels of records; moving around screens; locational skills; title, name, and subject searching; creating bibliographies; and…

Discussion of Library of Congress's efforts to meet challenge of designing and improving its online catalog system LOCIS (consists of SCORPIO and MUMS systems) includes sample searches and results of user surveys (access points in online catalog searches and response to input search statements resulting in no retrievals). (5 references) (EJS)

Thirty-one public library users were observed searching the Web and/or a Web-based on-line catalog. Four user categories were identified, distinguished by number of search approaches employed. Results indicate experience and motivation, elements of situational goals and mental models, work in tandem to determine search approaches, Web sites…

An online library catalog was used to evaluate an interactive query expansion facility based on relevance feedback for the Okapi, probabilistic, term weighting, retrieval system. A graphical user interface allowed searchers to select candidate terms extracted from relevant retrieved items to reformulate queries. Results suggested that the…

Command-driven searches would be facilitated, as users move from system to system, if a common command language were used. Proposed standards for a "Common Command Language for Online, Interactive Information Retrieval" have been developed by National Information Standards Organization (NISO) Committee G, and are now being reviewed for…

Examines three aspects of keyword searching as a possible solution to subject search problems in online public access catalogs (OPACs). Discusses search results, user satisfaction, and how keyword searching and controlled vocabulary searching are offered in OPAC interfaces. Concludes that keyword searching and controlled vocabulary searching…

With grants from the Council on Library Resources (CLR) and the Association of Research Libraries (ARL), New York University (NYU) Libraries conducted a study to assess user reactions to their online catalog, Bobcat (Bobst Library Computerized Catalog). In order to evaluate the effectiveness of NYU's catalog, to describe users' attitudes toward…