Discusses characteristics of typical online public access catalogs (OPACs) and examines patron use via printouts of transaction logs for three separate systems. Desirable features of OPACs (mnemonic search commands, boolean operators, forgiveness or automatic truncation, browsing a subject heading index, suggestive prompts) and need for…

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…

Describes development of an online catalog for Dartmouth College Libraries by Dartmouth and Bibliographic Retrieval Services (BRS). Highlights include Dartmouth parameters; capability of creating a fully inverted file for entire bibliographic citation provided by BRS software; features of BRS/Dartmouth user interface; telecommunications links; and…

Online public access catalogs from 67 libraries using NOTIS software were searched using Internet connections to determine the positional operators selected as the default keyword operator on each catalog. Results indicate the lack of a processing standard for keyword searches. Five tables provide information. (Author/AEF)

Describes a project that demonstrates subject searching in an experimental online catalog based on academic library databases that were enhanced with search trees; compares the retrieval effectiveness of search trees with random subject searching approaches; evaluates system and retrieval effectiveness; and discusses proposed research. (Contains…

Traditional methods of studying and evaluating use of online public access catalogs (OPACs) are discussed and compared to verbal protocol method (spoken records of people describing their work that uncover detailed data about thinking during problem solving). Results of Carnegie-Mellon University protocol study of OPAC users are discussed. (22…

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…

Describes the Library of Congress's Experimental Search System (ESS), a Web-based online public access catalog that introduced new search methods to replace Boolean searching as well as powerful navigational aids for browsing and cross-linking. Discusses problems, ESS user comments, acceptance by Library of Congress staff, and future…

The feasibility of using the verbal protocol method as a means of conducting field research on the online catalog is examined. As 10 undergraduate students conducted research they talked aloud about what was happening. Potential usefulness of the method in online catalog research is assessed, as a development tool and as a tool to assist reference…

Provides an overview of the MacNOTIS interface project at Texas A&M University to provide a tool to make the NOTIS online public access catalog more accessible to users. Highlights include an intuitive interface, saving to disk, local printing, reusable search strings, online help, and automatic dial-up. (JLB)

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…

Provides an overview of the Minnesota State University System's Project for Automated Library Systems (MSUS/PALS), a fully integrated library system. Highlights include a historical background; search strategies; the online catalog; MARC editing; circulation; interlibrary loan; inventory; serials control; acquisitions; relationships with vendors;…

Discussion of precision in information retrieval highlights a prototype online catalog, ILSA (Improving Library Subject Access), developed at Indiana University of Pennsylvania that uses subject clusters and classification. Topics addressed include problems with keyword searching, controlled vocabulary, and thesauri; natural language mapping…