关键词: 质量功能配置, 质量屋, 顾客需求, 优先度, 产品设计

Abstract: To describe the fuzzy of product's competitive advantage evaluation accurately, determining the integrated priority ratings of customer requirements in product planning house of quality was investigated. Based on the group triangular fuzzy importance evaluations of customer requirements from the selected customers, the normalized triangular fuzzy importance evaluations were processed to determine fundamental priority ratings of customer requirements by using expected value operator of triangular fuzzy variable. According to triangular fuzzy value evaluations and triangular fuzzy competitive evaluations of customer requirements with respect to the competitive products of a corporation and its competitors from the selected customers, a model of determining competitive priority ratings of customer requirements was built based on a maximal principle of triangular fuzzy similarity, and resolved by using Lagrange function. Based on a combination of the fundamental priority rating and the competitive one of each customer requirement, the integrated priority ratings of customer requirements were determined. A case study of product development in a corporation was provided to illustrate the feasibility and rationality of proposed method.

Key words: quality function deployment, house of quality, customer requirement, priority rating