Compares two basic types of computer-based simulations--(1) variable-assignment simulations, and (2) diagnostic problem-solving simulations. Differences in the role of the computer, in the nature of the problem presented to the learner, and in the decision making required of the student are described. (eight references) (LRW)

Presents a hypothetical instructional dialogue which illustrates the vocabulary, syntax, and style of Terrapin Music Logo, and shows how that dialect might be used to explore the concept of repetition in musical form. The educational philosophy of Logo is examined, and computer-aided discovery learning in music theory is illustrated. (eight…

Explains exploratory sequential data analysis (ESDA) and outlines ESDA characteristics that could help human-computer interaction investigators using sequential data make better conceptual and methodological choices. Behavioral, cognitive, and social factors are considered, and failures of expertise, time management, and databased problems are…

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)

Explains multimedia information systems (MMIS) and describes a pilot system with automatic content retrieval developed at the Victoria University of Manchester (England). Topics discussed include types of databases; requirements of the Manchester MMIS; system architecture and operation; semantic data and their representation of images; queries;…

Introduces a hypertext data model for textual databases in which the text is divided into a syntactic structure, which describes the relationships of the text parts, and an access structure, which is generated from the syntactic structure by users' queries. Implementation considerations for the structuring component, retrieval component, and…

Describes the design of an experimental computer-aided cataloging advisor, Mapper, that was developed to help novice users with the descriptive cataloging of single-sheet maps from U.S. publishers. The human-computer interface is considered, the use of HyperCard is discussed, the knowledge base is explained, and assistance screens are described.…

Describes virtual realities as environments in which visual, aural, or other stimuli generate in the mind of the user a sense of navigable, frameless, three-dimensional space, and predicts that the availability of computer technology to create real-time, three-dimensional graphics will bring radical changes in the educational use of visualization…

Reports preliminary results of a research project that investigated the effectiveness of a new technique for information retrieval interfaces called colinked descriptors, based on the concept of cocited references in the field of bibliometrics. Examples of colinked descriptors from the "Thesaurus of ERIC Descriptors" are presented.…

Describes the development of a model for future national and international digital libraries. Four aspects of the model are presented: (1) nine principles underlying constructing electronic archives; (2) a study of potential user needs; (3) the design and evaluation of the user interface; and (4) objects and document type definition development.…

Describes research that was conducted to investigate the needs and characteristics of noncomputer professionals who use word processing software on personal computers. A model of the intermittent user's performance is presented, and two experiments are described that examined differences in mode of interaction and the use of online help. (30…

Considers the impact of information technology on academic integrity. Highlights include machines versus man; honor codes and student cheating; copyrights for digital data; authoring versus writing; intuitive software; and an example and analysis of the use of AutoSummary in Microsoft Word 97 to create a summary of a published article. (Contains…

Presents a brief historical overview of research in individual differences in the context of virtual environments. Highlights the notion of structure in the perception of individual users of an information system and the role of individuals' abilities to recognize and use such structures to perform various information-intensive tasks. (Author/LRW)

Many catalogs are built in an ad hoc fashion, which results in uncertain quality in publicly accessible network catalogs. This article discusses problems facing designers building catalogs for large networks, relating them to resource discovery; provides a usability framework based on library science and human computer interaction literature; and…

Identifies user interface problems as they relate to computer-assisted instruction (CAI); reviews the learning theories and instructional theories related to CAI user interface; and presents potential CAI user interface improvements for research and development based on learning and instructional theory. Focuses on screen design improvements.…