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Embedded safety-critical systems are emerging with increasing complexity and software-intensive, the use of diversity in software is helpful to increase safety and reliability. In this paper, a software diversity model from practice of Zone Controller in communications-based train control application is presented. Firstly, we discuss software architecture and safety tactics of embedded systems, and...
SA (software architecture) is not as clearly visible and controllable at the application level at running time as that software online evolution is difficult. Runtime SA exists in system implicitly, and architectural issues are spread throughout the implementation of OS and middleware layers. A distributed runtime environment SADRE (software architecture-driven runtime environment) is designed based...
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