Discusses collaborative authoring, computer-supported collaborative work and the reuse of multimedia courseware; describes a consolidated model, Open Systems for the Collaborative Authoring and Reuse (OSCAR) of courseware, that was drawn from other abstract models; and examines hypermedia systems, object-oriented communication models, and the…

The concept of hypertext was introduced by Ted Nelson in 1965, but only recently has the widely available technology caught up with the idea. The new generation of microcomputers featuring large internal memories, graphic interfaces, and large data storage capacities have made the commercial development of hypertext/hypermedia software possible. A…

Discusses the effects of individual differences and cognitive styles on student learning in hypermedia programs and presents a cognitive model to illustrate how students with different cognitive styles react to non-linear learning in hypermedia by analyzing the findings of previous studies. Suggests implications for the design of hypermedia…

Describes an instructional design model for hypertext, the Explorer's Hypertext Story Model, which is structured around components based on a story or narrative structure. Topics discussed include learner motivation; navigation in hypertext; learner control; and the importance of understanding information in context. (34 references) (LRW)

Reviews current literature in the fields of computer science and education that is related to the structure and use of hypermedia; discusses discovery and incidental learning; examines the nature of the environment and of the learner; describes implications for the design of hypermedia-assisted instruction (HAI); and suggests further research…

Discussion of learner control in instructional management describes six learner control methods: (1) content control; (2) sequence control; (3) pace control; (4) display or strategy control; (5) internal processing control; and (6) advisor strategies. Relevant literature, both theoretical and empirical, is reviewed, and learner control and…

Discusses whether educators should write their own computer-assisted instructional software, and describes four basic categories of tools teachers can use to produce courseware: (1) traditional programing languages; (2) authoring languages, including hypertext authoring languages; (3) authoring systems; and (4) authoring aids. Each category is…

Describes the Hypertutor Model, a message design framework for interactive instructional systems that emphasizes learner control, presentation, practice, feedback, and learning resources. Problems with software designed for computer assisted instruction are examined; hypertutor systems are discussed; and MegaMentor, a hypertutor system at the…

This survey of authoring languages that are used in computer-assisted instruction (CAI) highlights recent developments in Macintosh authoring languages and discusses their use in courseware development. CAI effectiveness is defined, advantages and disadvantages of CAI are described, and future research needs are suggested. (27 references) (LRW)

Considers the role of educational technology in two views of the school reform movement: one that demands more from the existing educational system, and one that calls for restructuring of the existing system. The effectiveness of technology is addressed, models for technology use are described, and technology and constructivism are discussed. (31…

Describes the design and exploratory use of an interactive hypertext program, SKEIM (Shell for Knowledge Engineering, Instruction, and Measurement), that was developed to record university students' review strategies of a set of lecture notes. Topics discussed include domain experts; navigation; text display guidelines; and the relationship of…

Describes a study of undergraduates at Aston University (United Kingdom) that investigated whether maps were an appropriate navigational aid for searching in a hypertext environment. Task performance, system use, previous computer experience, perceptions of the system, and cognitive map data are examined; and implications for hypertext system…

Describes a study that investigated the effects of learner control and of advisement in a hypertext learning environment with second-grade students who had different levels of prior knowledge about the content. Topics discussed include computer-assisted instruction; learner control; and recommendations for instructional design in a hypertext…

Presents guidelines derived from cognitive and constructivist learning theory and instructional design literature for designing effective hypermedia-based courseware. Topics addressed include the influence of learning theory, hypertext and hypermedia, courseware design factors, learner interaction variables, practice, feedback, learner control,…

Describes a study of Australian secondary school students that identified the conditions and individual characteristics that would best support learners' acceptance of control within hypermedia, based on evidence from the learner control literature. Investigated effects of prior domain knowledge, learning activity structure, ability, and attitudes…