A study was conducted that used transaction logs to identify the characteristics of the most complex or problematic user queries. Enhancements are recommended in the design of online catalogs that use search trees to control system responses and to determine appropriate subject-searching terminology and technique. Contains 21 references and 12…

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)

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)

Describes a microcomputer program that serves as a front-end to an online library catalog and other information sources and provides guidance to students on searching for and evaluating information. Funding, technology, evaluation, impact on other libraries, and future plans are discussed. Sample screens are included. (Contains 75 references.)…

Compares features of user interfaces for CD-ROM public access catalogs by six vendors: (1) Auto-Graphics; (2) Brodart; (3) General Research Corp.; (4) Library Corporation; (5) Library Systems and Services, Inc.; and (5) Marcive. Brief evaluations of the products are included, and detailed descriptions of each are appended. (MES)

InfoQUEST is a microcomputer-based online public access catalog, designed for the small library handling file sizes up to 25,000 records. Based on the IBM-PC, or compatible machines, the system will accept downloading, in batch mode, of records from the library's file on the UTLAS Catalog Support System. (Author/EJS)

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…

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…

Eight authors discuss five questions related to user searching of online catalogs: What user needs can be met by online assistance? Should assistance be tailored to particular groups? Should there be more than one level of assistance? Do users learn through computer-assisted instruction? and Will increased system friendliness eliminate the need…

Describes the Information Function of the LS/2000 integrated library system at Carnegie-Mellon University. Existing and planned functions, screen displays, and selection options (announcements, guides to book locations, library hours, access to library guides and bibliographies, library policies and services) are illustrated. Footnotes are…

This detailed description of a fully integrated, turnkey library system includes a complete profile of the system (functions, operational characteristics, hardware, operating system, minimum memory and pricing); history of the technologies involved; and descriptions of customer services and availability. (CLB)

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…

Provides an overview of the IRIS (Intelligent Reference Information System) project at the University of Houston (Texas) libraries; describes CD-ROM database performance tests, user reactions to the CD-ROM network, and a survey of users of an expert system to recommend reference sources; and reports on current activities and future plans.…