Presents a theoretical framework for navigation in information retrieval systems and describes a prototype retrieval system that was developed to investigate navigation. The use of a visual interface in a spatial representation scheme is described, and results of a user-based evaluation of the system are reported. User questionnaires are appended.…

Computer-assisted advising can be an effective support for conventional academic advising. A shell-based expert system allows computer-assisted advising without automated student records, because students maintain and input their own records into the system. The Expert System for Advising Undergraduates (ESAU) used in the management department of…

Describes the design, implementation, and evaluation of a computer-assisted learning (CAL) package called CLEM (CORE Learning Environment for Modula-2) that was developed in Great Britain for teaching the Modula-2 programming language to first-year college students. Topics discussed include interactivity, flexibility, ease of use, student…

Identifies problems that undergraduate searchers encountered in a search of the ERIC database on CD-ROM. Results of participant observation, questionnaires, and interviews are reported; a taxonomy of user problems is proposed that includes syntactic errors and semantic errors; and recommendations for menu selection systems, online help, and…