Discussion of the time needed to create computer-based instruction focuses on descriptive analyses of production data gathered from novice instructional designers and novice authors who used a commercial authoring system to produce computer-based lessons. Production ratios are explained, and future research plans are discussed. (Contains five…

Interface and instructional design guides almost completely ignore sound, and research suggests many promising instructional uses remain largely unexplored. Examines information processing and communication theoretical foundations for sound's systematic use in the instructional communication system and proposes a framework for a program of…