This paper explores the feasibility of developing a single-user microcomputer-based testing system. Testing literature was surveyed to discover types of test items that might be used in the system and to compile a list of strategies that such a system might use. Potential users were surveyed. Several were interviewed, and a questionnaire was developed to determine features needed by users. Evaluation of hardware indicated that microcomputers were available and adequately suitable. However, a typical lack of disc storage for item banks would prevent a system from being acceptable. Work on the software design of the testing system began with a review of existing systems. The design of a complete self-contained system was discussed and included: item banking; test specification; test administration; test analysis system; and a method for reporting the results to examinees. The test authoring system was a two level system (author language and menu system) allowing a division of labor between writers and programmers. An example of test specification is offered. Development of the microcomputer-based system was scheduled to begin in mid-1983 as a second phase for the project in which the design was developed. (PN)