Reconvergent-Fanout-Oriented Testability Measure

This paper describes the theory and implementation of a testability measure program called RFOTM.Itis suggested that the real difficulty in test generation should be reflected in testability measure.We analysethe behavior of fanout and reconvergent fanout which cause inconsistency in generating tests.Aclassification of fanouts is given and a class of fanouts which behaves like fanout-free lines is described.Based on this observation,the new measure is developed with emphasis on the influence of fanout andreconvergent fanout,and is shown with more accurate prdiction for testing difficulty and acceptablecomputing complexity.