Describes the design of a prototype of a computerized courseware production and presentation system that provides a user-friendly environment for the creation, maintenance, and presentation of courseware. Object-oriented material is discussed, types of operations that may act on the objects are explained, and interaction techniques are described.…

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 article examines the concept of interactivity and discusses human-to-human interactivity versus computer-to-human interaction in education. Levels of communicative interdependence are explained, variables that are important ingredients of interactivity are discussed, learner control is discussed, and two interactive instructional systems are…

Examines features to consider when redesigning instructional materials to electronic format from print. Topics discussed include physical presence; human-computer interface; resolution and screen size; online help; interactivity; motion and sound; and software tools. Examples of screen designs are included. (Contains 11 references.) (LRW)