关键词: 需求权重, 网络分析法, 梯形模糊数, 模糊层次分析法, 模糊网络分析法

Abstract: Aiming at the complex relationship among the elements of customer requirement in software development, the defects of AHP and FAHP in solving the complex relationship of the demand are analyzed. This paper uses analytic network process and trapezoidal fuzzy number, establishes the ultimate weighted super matrix to get the mixed weights of elements of the demand. The weights of fuzzy analytic network process, fuzzy analytic hierarchy process and analytic network process are compared and analyzed. It is expounded that the interrelation of elements in complex systems and the fuzzy evaluation of relative importance of the customer demand play an important role in the process of solving the weight, and the feasibility of fuzzy network analysis in solving complex demand weight is verified. The results provide a basis for the accurate solution of the complex weights of customer requirements in software development.

Key words: demand weight, analytic network process, trapezoidal fuzzy number, fuzzy analytical hierarchy process, fuzzy analytic network process