Combining with failure mode and effect analysis (FMEA), a method of safety risk analysis for software architecture on the basis of probabilistic influence diagram is proposed in the thesis.

本文结合失效模式和效果分析FMEA方法，提出一种基于概率影响图的软件体系结构安全性风险分析方法。

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The safety requirement of software is not considered completely in component composition, so it maybe bring on failure of the software.

构件组装技术无法充分考虑安全苛求软件的安全性需求，可能引发软件的失效。

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