Discusses impact of three selected command language facilities (positional or free text operations, crossfile searching, term frequency analysis--ZOOM) on the man-system interface in relation to operational online information retrieval (IR). A cognitive IR model, searchers' knowledge structures, and searching with different types of command…

Presents a stratified model of information retrieval interaction that views interaction as a dialog between participants (user and computer) through an interface. Discusses traditional and interaction models, and extension to relevance, user modeling, search term selection, and types of feedback in information retrieval. (AEF)

Discussion of courseware evaluation for computer-based training (CBT) highlights the CITAR Computer Courseware Evaluation Model (CCEM), which was developed at the Center for Interactive Technology, Applications, and Research (CITAR) at the University of South Florida. Instructional and interactive characteristics of commercially available CBT…

Describes the Book House, an interactive, multimedia online public access catalog (OPAC) developed in Denmark that uses icons, text, and animation. An alternative design model that addresses problems in OPACs is described; and database design, system navigation, use for fiction retrieval, and evaluation are discussed. (20 references) (MES)

Discusses differences between conventional books and electronic books, examines human-computer interface design issues, presents a development model for a hypermedia electronic book system, and describes the development of an electronic ABC book on CD-ROM for early learners. Future directions are also discussed. (24 references) (LRW)

Discussion of educational software focuses on a model of educational software that was derived from a case study of two elementary school teachers participating in a software design process. Considers human-computer interface, interaction, software browsing strategies, and implications for teacher training. (Author/LRW)

This article offers an introduction to the central concepts and principles of the Systemic-Structural Theory of Activity (SSTA), an activity-theoretical approach specifically tailored to the analysis and design of human work. In activity theory, cognition is understood both as a process and as a structured system of actions. Building on the…

TIS (Technology Information System) is being used at the Lawrence Livermore National Laboratory (LLNL) to develop software for Intelligent Gateway Computers (IGC) suitable for the prototyping of advanced, integrated information networks. Dedicated to information management, TIS leads the user to available information resources, on TIS or…

Different aspects of human-machine interaction are discussed in the five brief papers that comprise this report. The first paper, "Some Observations on Mental Models," discusses the role of a person's mental model in the interaction with systems. The second paper, "A Psychologist Views Human Processing: Human Errors and Other…

The Voice Interactive Analysis System study continued research and development of the LISTEN real-time, minicomputer based connected speech recognition system, within NAVTRAEQUIPCEN'S program of developing automatic speech technology in support of training. An attempt was made to identify the most effective features detected by the TTI-500 model…

The Network Measurement System (NMS) represents the implementation of a new approach to the performance measurement and evaluation of computer network systems and services. By focusing on the service delivered to network customers at their terminals, rather than on the internal mechanics of network operation, measurements can be obtained which are…

To minimize training time, an adaptive training model for optimizing path sequencing in computer aided instruction was developed. The model reduced a course to logical components or quanta, then plotted the material for possible sequences and evaluated each component quanta as to importance to subject assimilation. For implementation and testing,…

The one-day conference was sponsored in recognition of the need for increased interaction between education and business on problems related to the potential of man-machine interface and application of this potential to the resolution of social and economic problems. Dr. Van Court Hare in discussing the emerging generation of computer systems…

Describes two research projects based on QUEST and proposes an information handling model. Design, interrogation, and evaluation of data files are discussed relative to restraints imposed by child's developmental stage and nature of software employed. Implications of computer-related information handling for curriculum design and children's…

Reports on emergence of decision support system (DSS) as a practical approach for applying computers and information to problems facing management. Information processing and decision making in organizations, simulation-model-based DSS in management of library resource sharing networks, and a resource-sharing simulation system are highlighted.…