Bottom-Up Modeling for Diagnosis

Abstract

Diagnosis requires a re-alignment of the basic design modeling approach. Designers, by the nature of the craft, try to make things happen. They put together models to verify that the desired events will indeed happen. Theirs is a success oriented model. Test engineers, on the other hand, look for things to go wrong. They put together models to verify the failure of a system to perform properly. They look for ways to detect and isolate various faults. Their models are failure oriented.