An applicable testability framework for small satellite under the operational response space

Focused on the significant features such as highly integration, flexible assembly and rapid testability of small satellite under the operational response space (SSUORS), an applicable framework of design for testability (DFT) is proposed to assure the testability of the SSUORS system. A combined structure of the DFT framework is presented to assure the system-level testability. Further, three patterns of extended build-in test are proposed to enhance the function-level testability, which are specified as additional testability requirements. In addition, both simple and complex scenario-based assignment test models are established based on the proposed DFT framework respectively. Compared with the traditional DFT, more complicated test requirements can be realized sufficiently, and more flexible test strategies can be implemented conveniently by the proposed DFT framework.