本文研究了概率影响图的关联矩阵表示和矩阵变换方法，并给出了完整的计算机实现方法。
This paper studies the description and transformations of incidence matrix of PID, and discussed in detail the steps of programming by computer.
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。
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.
针对ESD模型规模控制方面的局限，提出了基于ESD的模块化原理，研究了ESD与概率影响图的转化方法；
To overcome the limitation of ESD on model scale control, this thesis proposes a ESD-based modular theory and studies the method of transformation between ESD and probability influence diagram.
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