Applying Fuzzy logical method, the important degree of each actor is judged in the aspects of the probability, the influence and uncontrollability, not judged immediately.

• 应用模糊逻辑法对各因素的评判不是直接评价其重要度，而是将各风险因素从概率方面、从影响方面、从不可控制性方面分别进行评判。