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The testability design becomes one of important works to do during a design process of a system and en equipment. Whereas, the testability labor of current avionics equipments are performed after design and most of its testability results are acquired by manual statistic. In this article, taking an aviation radio’s power supply model for example, a testability model is designed based on TADS and the scientificity and practicability of this model is testified by realizing fault separation by GPTS. |