MODIA (Method of Designing Instructional Alternatives) was developed to help the Air Force manage resources for formal training by systematically and explicitly relating quantitative requirements for training resources to the details of course design and course operation during the planning stage. This report explains how to operate the User Interface (UI) component of MODIA; a separate appendix describes the program. The UI program acts as a knowledgeable assistant to course planners by eliciting their judgments about how the course should be designed--specifically, the course objectives, teaching policy, resource characteristics, and student characteristics. The program collates the resulting decisions to develop a comprehensive, internally consistent description of the course in a variety of formats to assist planners in analysis of the course design and in preparing inputs for analysis by the cost model. The UI also produces the course description in the required form for input to the Resource Utilization Model, which analyzes the course operation. (Author/DAG)