Describes a method for automatically selecting key frames that can be used to represent the total image sequence of visual documents. An abstracting algorithm developed at the National Aeronautics and Space Administration is explained, and extensive examples of abstracted motion sequences are presented. (eight references) (LRW)

Describes compression methods for components of full-text systems such as text databases on CD-ROM. Topics discussed include storage media; structures for full-text retrieval, including indexes, inverted files, and bitmaps; compression tools; memory requirements during retrieval; and ranking and information retrieval. (Contains 53 references.)…

Discusses the cost of constructing a hypertext database and suggests cost forecasting approaches that can be used to determine whether organizations can internally fund a hypertext database, or whether producers can afford to market hypertext databases. Production costs in differing hypertext strategies are also compared. (27 references) (LRW)

Discusses the financial pressures libraries face as the number and cost of serials escalate while funding is reduced. Presents a case study of a small library that eliminated physical subscriptions to journals and enhanced its service to include CD-ROM technology after ranking journals according to a cost benefit analysis. (Author/LRW)

Discusses the application of information science concepts to problems in museum collections management and describes a project in which the Vancouver Maritime Museum recataloged its historic watercraft collection. A list of fields to be used in computerized cataloging of historical watercraft is proposed, as well as cataloging protocol. (29…

Describes a study of the social dynamics of new media (television, personal computers, CD-ROMs, Internet, email, and World Wide Web) in Scottish households. Analysis of interview transcripts from group conversations revealed recurrent narratives and behavioral genres to navigate social space that contribute to a theory of social informatics in the…

Discusses the reliance of developing nations on technologically advanced countries to provide information--especially in the areas of science and technology--to aid in technology transfer and research development, and examines the advantages of using optical data disk technology to store and retrieve this information. (22 references) (CLB)

Describes a case study which explored the extent to which CD-ROM products can support the information needs in developing countries; assessed the economics of a system of CD-ROM databases supplemented by an online system; and investigated the breakeven analysis of the costs of searching CD-ROM versus online. (Contains 34 references.) (LRW)

Describes the unique reliability problems of very large databases that necessitate specialized techniques for hardware problem management. The discussion covers the use of controlled partial redundancy to improve reliability, issues in operating systems and database management systems design, and the impact of disk technology on very large…

Reports on the second phase of a cognitive study of multimedia and its effects on sixth graders' learning that focused on the relationship among text, animation, and captions. Results show that a combination of text plus animation and captions resulted in greater recall, inference, and comprehension. (Author/LRW)

A series of six articles discusses the technology of optical data disks, current and possible future applications of this technology, their potential impact on information retrieval systems, and the potential problems as they apply to information science. (CLB)

Describes a study of 120 grade-6 students in Montreal that compared "Compton's Multimedia Encyclopedia" on CD-ROM with its print version to determine students' ability to recall information and to draw inferences from it. Presentation conditions, retrieval conditions, text characteristics, and future research plans are discussed.…

Discusses results of a Delphi study of secondary school library media specialists that identified difficulties of students in using online and CD-ROM databases, suggested design elements and curricular and instructional strategies to make them more valuable as learning resources, and determined policy issues relating to electronic information…

Discussion of scientific journals and the use of electronic tools focuses on a study in New Zealand that investigated the feasibility of CD-ROM instead of printed journals for scientific publishing. Highlights include software choice; prototype publication; sampling method; document delivery; credibility and durability; and future possibilities.…

Describes a study that used a mental models perspective to examine the search behaviors of gifted elementary school children searching a full text electronic encyclopedia. The discussion covers analyses of search patterns used, differences between younger and older searchers, suggestions for systems design, and needed further research. (39…