TRSHOOT: a model-based troubleshooter

Authors:
Choon P. Goh
Affiliations:
Massachusetts Institute of Technology, Artificial Intelligence Laboratory, 545 Technology Square, Rm 834, Cambridge, Massachusetts
Venue:
IEA/AIE '90 Proceedings of the 3rd international conference on Industrial and engineering applications of artificial intelligence and expert systems - Volume 1
Year:
1990

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Abstract

Parity checking is a common error detection scheme used in electronic circuits. We describe a model-based approach to building a system, TRSHOOT, that troubleshoots parity errors in a circuit. Given the appropriate structural and behavioral descriptions of a circuit and the symptoms of its failure, the system generates a list of plausible candidates responsible for the failure by applying suitable general principles. The candidate generation process comprises of three sub-processes: indictment, exoneration and extended exoneration. All these processes are discussed in some detail. A high level strategy is shown to provide useful guide to the troubleshooting process.