In order to make consistency and to eliminate dimensions of system evaluation indexes, and to avoid determining membership function in fuzzy comprhensive evaluation, a new approach is studied with which preference values of fuzzy preferential relation matrix A can be used as consistency and non-dimension evaluation indexes.

The blurry accordant matrix keeps away from the characteristic factor matrix while use precedence relation coefficients to describe the project,which can keep away from subjection confirming in the decision-making when there have many qualitative and quantitative factors.

The aggregative rank index and the aggregative precedence relation between the alternatives are pro.

The aggregative rank index and the aggregative precedence relation between the alternatives are proposed.

Based on the fuzzy prior relation method,the article sets up a fuzzy optimum decision mathematical model of bid and appraised bid.

This paper gives a new method,using both Value Engineering(VE) method and fuzzy prior relation method.

The fuzzy priority comparison method can be used to quantify and sequence these complex factors to find out key factors affecting investment expansion so as to adopt necessory measures to control them.

In this paper, the concept of dynamic priority systems is developed based on bounded P/T systems and the interleaving and the true concurrency semantics are provided for them respectively.