By using the priority index, a method for solving problems of risky decision, whose utility values of outcomes were evaluated by interval Numbers, was proposed.

利用行动优性指标，提出了一种求解效用值用区间数表示的风险型决策问题的方法。

A new comprehensive evaluation model is established on the basis of the grey cluster method and by use of the characteristics of concordance priority index and disconcordance priority index.

以灰色聚类方法为基础，利用协调优先指标与非协调优先指标的性质，建立了一种新的综合评判模型。

The concordance priority index and disconcordance priority index of the theory can be used to disclose the character of the evaluated object from degree of contentment and that of discontentment.

该模型用协调优先指标与非协调优先指标，从满意度与非满意度两个方面揭示被评价对象的性质。