Presents a general definition of a system; outlines a collection of properties identified through a review of the literature to be used as a criterion for determining whether an aggregation of objects is a system; and tests a computer-based system against the checklist to see how it measures up. (MBR)

Describes significant attributes of expert systems, contrasts them to conventional computer systems, and provides an overview of the R1 expert system used by Digital Equipment Corporation (DEC) to put together operational systems that meet customers' requirements. Document handling, particularly pictures and images in documents, is also briefly…

Describes a system developed at the National Aeronautics and Space Administration (NASA) that automatically converts index terms from the Defense Technical Information Center (DTIC) to NASA thesaurus terms. The NASA Lexical Dictionary (NLD) that generates thesaurus terms for indexing is explained, and the development of machine-aided indexing is…

Provides overview of Ergonomics Abstracts Retrieval System (EARS), an online bibliographic search and retrieval system in the area of human factors engineering. Other online systems are described, the design of EARS based on inverted file organization is explained, and system expansions including a thesaurus are discussed. (Author/LRW)

Describes interorganizational information systems and the necessity for cooperation. Topics discussed include managerial considerations, including objectives, benefits, and resources; considerations in systems development, including telecommunications skills; considerations for users of information systems, including user needs; and considerations…

Describes an interactive data retrieval system which was designed and implemented for casual users and which incorporates a user-friendly interface, aids to train beginners in use of the system, versatility in output, and error recovery protocols. A 14-item reference list and two figures illustrating system operation and output are included. (JL)

Based on the literature and interviews with personnel in the United Kingdom, this article identifies possible roles for information professionals in the design and development of expert systems. The need for training in expert systems, communications with computer scientists, and improved recognition of the information science profession are…

This description of the design of an online library acquisition system highlights the use of database management systems in developing information retrieval systems, and software requirements for the hierarchical menu-driven operation. A conceptual view of the database is included. (LRW)

Discusses what designers do, information they need, and how they might be aided, as background information for developing useful computer-aided decision systems to enhance designers' productivity. It is concluded that effectiveness of computer-assisted design systems depends on the value of the information and the flexibility of the support they…