Addresses the question of how to write computer programs using explicit knowledge and rules-based systems. Highlights include the knowledge representation tool; the knowledge base on programming; and results of experiments that tested the system. Appendices include the set of rules for the experimental knowledge base and details of two…

The development of safety-critical systems (aircraft cockpits and reactor control rooms) is qualitatively different from that of other interactive systems. These differences impose burdens on design teams that must ensure the development of human-machine interfaces. Analyzes strengths and weaknesses of formal methods for the design of user…

Provides an example that illustrates the interrelationship of the factors that influence educational software portability. Nielsen's seven-level approach to human-computer interaction is used as the basis for a model for factors that influence portability, and five phases in the life cycle of a software product being adapted are considered. (10…

Describes the design of a prototype of a computerized courseware production and presentation system that provides a user-friendly environment for the creation, maintenance, and presentation of courseware. Object-oriented material is discussed, types of operations that may act on the objects are explained, and interaction techniques are described.…

Discusses the importance of skillful visual design of computer screens and provides guidelines for screen design in the areas of information resolution, interaction of design elements, color, and typography and icons. (MES)

Discusses artificial intelligence (AI) and the ideas of strong versus weak AI in relation to chess-playing computers. The concept of creativity is considered, and an attempt to develop a computer program capable of writing short stories is described. (LRW)

Discussion of information system design proposes the artifact as theory perspective and suggests that information system design is best tackled by user-centered theories and methods. Topics include the software development process, human-computer interaction, and implications for information science. (LRW)

Discusses concepts of mediation and focuses on the importance of implementing comprehensive virtual learning environments. Topics include education and technology as they relate to cultural change, social institutions, the Internet and computer-mediated communication, software design and human-computer interaction, the use of MOOs, and language.…

Provides an overview of the articles in this special issue, which deals with the portability, or transferability, of educational computer software. Motivations for portable software relating to cost, personnel, and time are discussed, and factors affecting portability are described, including technical factors, educational factors, social/cultural…

Describes a study of graduate students that observed the interaction between users of a graphical statistical package and a human playing the role of a simulated intelligent advisory system to guide the design of advice-offering user-assistance software. The use of video to examine the users' role in the interaction is discussed. (Contains 37…

Describes the development of the Adaptive Network Library Interface (ANLI), an interactive computer program that acts as an interface between the users of an online card catalog and the catalog itself. Highlights include historical background; hypertext and the ANLI; neuronal nets and von Neumann computer architectures; and future possibilities.…

Presents specifications for software that is designed to support manual development and maintenance of information retrieval thesauri. Evaluation of existing software and design of custom software is discussed, requirements for integration with larger systems and for the user interface are described, and relationships among terms are discussed.…

This article uses the example of a single training course to show how to incorporate human factors into the interactive multimedia courseware development process. Three types of testing to identify human factors issues in courseware are discussed: usability testing, pilot testing, and field testing. (Author/LRW)

Describes OASIS, a prototype adaptive online catalog implemented as a front end to the University of California MELVYL catalog. Topics addressed include the concept of adaptive retrieval systems, strategic search commands, feedback, prototyping using a front-end, the problem of excessive retrieval, commands to limit or increase search results, and…

Discusses the application of computer based training (CBT) to human-computer interface design. Describes course considerations; courseware; and software environment for practice, and presents a case study outlining small group production of interactive guidebooks. Concludes that CBT can reduce instructional time and is an effective method for…