Simulation-based techniques for calculating fault resolution and false removal statistics

This paper discusses the use of diagnostic simulations to generate the Fault Resolution metric for a system or equipment. Simulation-based calculations are free of some of the biases that inhere within traditional, math-based approaches. Moreover, a simulation-based evaluation of the replacement of failed items also provides a basis for the calculation of the effect of diagnostic ambiguity upon false removals-including the estimated costs that can be attributed to removals beyond those that would be expected during a product's intended lifetime.