In distance education, interactivity refers to mutual influence of objects and actions, particularly with reference to the relationship of learner, instructor, content, and technology. Instructors should build interactivity into distance learning to increase participation, develop communication, receive feedback, enhance elaboration and retention,…

Identifies the optimal goal of knowledge workstations as the harmony of technology and human decision-making behaviors. Two types of decision-making processes are described and the application of each type to experimental and/or operational situations is discussed. Suggestions for technical solutions to machine-user interfaces are then offered.…

Discussion of the social role that computers play in the classroom focuses on an empirical study of human-computer interaction. Classes of high school and undergraduate students are described that were chosen to examine interactivity patterns among students with significantly different social characteristics. (11 references) (LRW)

Eleven articles introduce expert systems applications in library and information science, and present design and implementation issues of system development for reference services. Topics covered include knowledge based systems, prototype development, the use of artificial intelligence to remedy current system inadequacies, and an expert system to…

Discussion of expert systems focuses on knowledge acquisition methodologies and their potential application to cognitive science research and the development of instructional materials. Topics discussed include subject matter experts; types of knowledge; structured interviews; task analysis; intelligent computer assisted instruction (ICAI);…

Reviews research on uses of computer sound and suggests how sound might be used effectively by instructional and interface designers. Topics include principles of interface design; the perception of sound; earcons, both symbolic and iconic; sound in data analysis; sound in virtual environments; and guidelines for using sound. (70 references) (LRW)

This case study reports on the design and implementation of an experimental summer program aimed at introducing undergraduates to research in computer science. A research component added to a regular course on human-computer interaction based on the summer program is described, and recommendations for providing undergraduate research experience…

Discussion of transactions in computer-based instruction for ill-structured and visual domains focuses on two transactions developed for meteorology training that provide the capability to interact with video and graphic images at a very detailed level. Potential applications for the transactions are suggested, and early evaluation reports are…

Describes the development of the WAIS (Wide Area Information Servers) protocol, a system that allows users access to personal, corporate, and commercial electronic information from one interface. The availability of WAIS on the Internet and the reactions of users are addressed. Several problems are considered, including funding, hardware…

Describes an image storage system for contract documentation in the Engineering Directorate of Thames Water Utilities (England) which uses optical disc storage and a relational database for indexing and retrieval of nearly 500,000 pages in compressed image format, and provides end user access through 7 workstations. Requirements, feasibility…

Describes SHRIF, a System for Heuristic Retrieval of Information and Facts, and the medical knowledge base that was used in its development. Highlights include design decisions; the user-machine interface, including the language processor; and the organization of the knowledge base in an artificial intelligence (AI) project like this one. (57…

Discussion of online catalogs focuses on issues in interface design. Issues addressed include understanding the user base; common user access (CUA) with personal computers; common command language (CCL); hyperlinks; screen design issues; differences from card catalogs; indexes; graphic user interfaces (GUIs); color; online help; and remote users.…

Discusses human-computer interfaces in business settings and describes the concept of electronic paper (EP), a flat display board that is written on with a stylus, as an alternative to the traditional keyboard. Applications of EP are described; enabling technologies are explained; and commercial systems are described. (26 references) (LRW)

This discussion of educational applications of user interfaces covers the benefits of adopting database techniques in organizing multimedia materials; the evolution of user interface technology, including teletype interfaces, analogic overlay graphics, window interfaces, and adaptive systems; application design problems, including the…

Discusses the possible futures of telecommunications and interactive television and describes the Internet and services now available through it. Topics addressed include access to the Internet; resources available; access costs; user-friendly graphical interfaces; the digital video channel, used for videoconferencing and experimental projects;…