This report describes MODIA (a Method of Designing Instructional Alternatives), a system developed to help Air Training Command (ATC) plan technical courses. The first in a series of five reports, this one discusses MODIA's rationale, structure, and support requirements as well as the results of ATC's evaluation of its effectiveness as an aid to course planning. Technical training offers both the potential for effecting substantial improvements in training efficiency and ample opportunities to improve efficiency through redesign of courses. MODIA helps the Air Force achieve these goals by (1) systematically relating quantitative requirements for training resources to the details of course design and operation during the planning stage and (2) computerizing course design to encourage the examination of alternative designs. ATC's evaluation of MODIA showed that it does help planners design more efficient courses. Its potential value to ATC, however, hinges on management issues, which ATC is currently addressing in a follow-on evaluation.
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