Patent ID: 7139676

Claim:
A method of determining a revision of a test suite of a model-based diagnostic testing system comprising: evaluating a diagnostic efficacy of the test suite using a probability of one or both of a correct diagnosis and an incorrect diagnosis by the test suite, wherein evaluating comprises: suggesting a test to add to the test suite to adjust an overall test coverage of the test suite, wherein suggesting a test to add comprises: creating a simulation database of the test suite; determining a probability of a correct diagnosis and a probability of an incorrect diagnosis for the test suite using the database; and creating a list of suggested tests from the determined probabilities; and identifying a test to delete from the test suite that comprises: determining a probability of a correct diagnosis for a modified test suite using the database, the modified test suite having a selected test removed from the test suite; computing an efficacy value associated with the selected test using the determined probabilities of a correct diagnosis for the test suite and the modified test suite; and generating a list of deletable tests and associated efficacy values.