Describes the Performance-Centered Design (PCD) approach that tackles the usability dilemma of computer systems. Discusses PCD success factors; characteristics of adult learning incorporated into PCD methodology; PCD design techniques; interface requirements; and benefits of the PCD methodology. (AEF)

Discusses the effect of object-oriented programming on the evolution of authoring systems. Topics include the definition of an object; examples of object-oriented authoring interfaces; what object-orientation means to an instructional developer; how object orientation increases productivity and enhances interactivity; and the future of courseware…

Discusses the design of an innovative learning system that uses new technologies for the man-machine interface, incorporating a combination of Automatic Speech Recognition (ASR) and Text To Speech (TTS) synthesis. Highlights include using speech technologies to mimic the attributes of the ideal tutor and design features. (AEF)

Compares methods of providing digital video in computer-based training. A tabulation of performance, quality, and cost is provided, and techniques of compression and decompression are described together with hardware and/or software needs. Networking digital video, and the impact of emerging standards on the development of future products are also…