Suggests that (1) research has not produced an algorithm for the selection of media formats, (2) more research is required on the effects of present technology, and (3) production decisions are influenced by many considerations. (Author/CMV)

Argues that television has unique educational characteristics that separate it from other media and have implications for teaching and learning. Discussion of distributional and social, control, and symbolic (audiovisual) characteristics is based on published surveys and on research carried out at the Open University. Thirteen references are…

This discussion of the educational potential of audiotape and videotape cassettes in distance teaching considers each medium individually, with examples of how the Open University has tried to exploit them in its teaching, and comments on some major differences between the two media and their implication for education. Characteristics of…

This paper argues that recent developments in technology hold considerable promise for distance education. Audiocassettes, audiographics (the combining of natural sound, via the telephone or audiocassettes, with computer-generated graphics), videocassettes, and computer conferencing are used as examples to identify factors that should be…

Factors contributing to the uniqueness of educational software are analyzed from contextual and textual perspectives. Contextual (or external) technological, economic, and social factors are examined briefly, and are identified as the dominant factors in the future evolution of educational software. Feedback and interactiveness, two significant…

Proposes a framework to help course developers design criteria for optimal media deployment. The merits of radio, television, audio, video, and print are briefly compared with computer-based media and analyzed in light of six types of media characteristics: symbol system, access, controllability, student reactivity, interactivity, and adaptivity.…