Experience in diagnosing a remote, tele-controlled unit using the AITEST expert system

This paper describes our experience in using a diagnostic expert system (AITEST) for fault isolation, diagnosis and repair action recommendations for a remote, tele-controlled UUT (Unit Under Test). We identify the unique requirements of diagnosis in this class of problems, and explains how these requirements were met in less than three person-months by integrating the expert system with specially-developed tele-control software and test software to form a seamless and capable diagnostic system for a specific UUT. We describe the process we used in analyzing the problem, concurrent development of knowledge base and test software, and their integration into the complete solution. We conclude by presenting preliminary results