Computer enhanced teaching of computational mathematics on a network system driving graphics terminals is being redeveloped for a mouse-driven, high resolution, windowed environment of a UNIX work station. Preservation of the features of networked access by heterogeneous terminals is provided by the use of the X Window environment. A dmonstrator…

Proposes a framework for the design of a full function workstation for information retrieval based on study of information seeking behavior. A large amount of local storage of the CD-ROM jukebox variety and full networking capability to both local and external databases are identified as requirements of the prototype. (MES)

Describes the design and development of the Mercury Electronic Library Project at Carnegie Mellon University that resulted in a library information system that provides access to the library's online catalog as well as to other databases. The distributed architecture of the system is explained, and future plans are discussed. (two references) (LRW)

Describes the redesign of a CD-ROM database interface by the Congressional Information Service (CIS) that addressed the needs of novice, casual, and expert searchers in academic libraries. Topics discussed include the user profile, the task profile, redesign goals, interaction style, menu design and implementation, system structure and the search…

Discussion of human/system interactions that are fundamental to online searching focuses on studies that examined online searchers' performance on DIALOG when they searched specific users' questions. Cognitive tests that were given to searchers are described; and calculating the odds for relevance, precision, and recall is explained. (four…

Discussion of issues involved in planning a multimedia CD-ROM product explains the selection of authoring tools, the design of a user interface, expert systems, text conversion and capture (including scanning and optical character recognition), and problems associated with image files. The use of audio is also discussed, and a 14-item glossary is…

Human-computer interface design concepts are used as the criteria for evaluating the benefits and shortcomings of San Diego State University Library's online catalog, INNOPAC (the PAC). Features discussed include integrated files, search capabilities, system availability, user interface, record-to-record links, boolean operations, subject access,…

Introduces a vision for how a multimedia learning system might work, and describes the design parameters involved in developing the EyeCue System, a large-scale interdisciplinary research-and-development project under development at North Carolina State University. (AEF)

Discusses individual differences between users of information systems that can influence search performance, and describes two experiments that addressed user-centered design of information systems. Highlights include interaction between cognitive abilities and design features; compensation and capitalization perspectives; recall and precision;…

Proposes a user-centered framework for intranet design based on an understanding of people, their typical problems, information behaviors, and situated contexts. Argues that by adopting such an approach, intranets can be designed which facilitate organizational information access and use. (Author/AEF)

This paper discusses issues related to the design of software tools that support learners in their participation in network-based learning activities. To guide the development and use of a new class of educationally-oriented network tools, this paper proposes a cognitively-based, distributed network learning framework (DNLF). This framework has…

This digest highlights several psychological dimensions of user-computer interfaces. First, the psychological theory behind interface design and the field of human-computer interaction (HCI) are discussed. Two psychological models, the information processing model of cognition and the mental model--both of which contribute to interface design--are…

The SAGRES system is an educational environment built on the World Wide Web that facilitates the presentation of the information bases of a museum in a way that is adapted to the individual characteristics of each visitor. The interaction with the system may occur individually or in groups of students. The system also offers resources to support…

Increasingly, digital libraries are being defined as collection pointers to World Wide Web-based resources rather than collections that hold the resources themselves. Maintaining these collections is challenging due to distributed document ownership and high fluidity. Typically a collection's maintainer has to assess the relevance of changes with…

Presents an overview of the growth of work in Human-Computer Interaction (HCI) over the last 40 years. Notes formative influences and contributing disciplines and discusses technology, applied problems, and the design for usability. Outlines issues that pose problems for HCI in the near future. Seven figures show growth in media. (141 references)…