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determining the failure propagation paths is always an important content of safety analysis. The traditional safety analysis methods are hard to deal with large complex systems. Therefore, model-based safety analysis (MBSA) becomes increasingly popular. However, the existing modeling methodologies are mainly modeled from one of the following three aspects, function, structure and state. This lacking...
In order to specify the description of accident process and structure the general formal model, this paper abstracted and defined some correlate concepts of fault propagation process, and carried on a systematic formal description to accident development process through introducing the typical six-elements Finite State Machine (FSM). Then, this paper built the fault propagation models of the system...
In the development of safety-critical system, ModelBased Safety Assessment (MBSA) process can reduce the development complexity and improve assessment efficiency. As an important part of MBSA, system modeling and safety requirements description with formal methods still lack a well-defined process. In this paper, the relationship between traditional safety assessment process and MBSA is discussed,...
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