Research on Testability Analysis Methods of Complex Embedded Software

Embedded software gradually tends to be more integrated, modular and complex. The architecture of integrated avionics system software is the typical example. Method for measurement testability of traditional testability analysis model DRR (Domain Range Ratio), due to its reliance on internal information, it is difficult to measure testability for complex embedded software such as IMA. So this article on the basis of the DRR model, it is proposed a model that described internal information of embedded software complex in development phase, Base-Line-Flow Graph, at the same time, we can measure testability index of software through this model. An example of IMA task proved that this method is effective and feasible.