Outlines the principles of user control, pacing, design quality, frame-oriented messaging, self-evident structure, self-contained components, and visual information in interactive videodisc design. The concepts of user friendliness, normal path and user-interrupt interactions, and screen design are also discussed. (MBR)

Argues that factors that create a feeling of interactivity in the human situation--response time, spontaneity, lack of distractors--should be included as prime elements in the design of human/machine systems, e.g., computer assisted instruction and interactive video. A computer/videodisc learning system for cardio-pulmonary resuscitation and its…