关键词: 质量功能展开, 顾客需求, 粗糙集, 决策系统

Abstract: As the functional relationships between customer requirements and engineering characteristics in Quality Function Deployment (QFD) were uncertain, unclear and fuzzy, a method to determine functional relationships for QFD was presented. All engineering characteristics constituted a set of conditional attribute, and each of the customer requirements constituted a set of decision-making attribute. The decision-making system corresponding to each of the customer requirements was respectively set up. Based on some related methods of relative reduction and relative core in rough set theory, the correction system corresponding to each of the decision-making system was established. Using some related methods of multi-attribute decision analysis of complete decision-making system in rough set theory, the importance ratings of the conditional attributes in these correction systems were determined, and then the relationships were also constructed. A case study of product development of automatic washing machine was provided to illustrate the application of the presented method.

Key words: quality function deployment , customer requirement, rough set, decision-making system