采用幂指数法结合模糊权重评价法计算系统总体效能，并以此作为优化的目标函数。
As the target function of the optimization model, the system entire efficacy was calculated by power index and fuzzy weight methods.
模糊；层次分析；风险评价；权重。
具体提出确定评价指标体系过程中对专家咨询结果统计处理方法和各指标权重的确定方法以及模糊评价过程。
It specifically puts forward the way to handle the statistics about experts' advice in the index system, the method to define the weight of each index, and the fuzzy evaluates process.
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