Abstract
This paper proposed a method for constructing the graphic modeling system on the basis of Visio drawing control through a lot of research about the technology of testable modeling and analysis. A regional growth algorithm based on the idea of image segmentation is put forward to obtain the fault-test dependency matrix and corresponding testability indicators such as fault detection rate(FDR) and fault isolation rate(FIR) are calculated according to the matrix. The optimal decision tree is also generated in this paper using AO∗ algorithm, which provides effective and reliable guidance for fault isolation. At last, the functions of the testability modeling and analyzing are verified taking a tape player as the research object. The experiment results show that the scheme is feasible and has important reference value for developing testability analysis tools.
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