关键词: 质量功能展开, 顾客需求, 层次分析法, 粗糙集理论, 粗糙数, 粗糙边界区间, 重要度

Abstract: To satisfy customers'quality requirements, a rough Analytic Hierarchy Process (RAHP) approach to obtain the importance ratings of customer requirements in Quality Function Deployment (QFD) was proposed. RAHP was based on the integration of the AHP and two novel concepts known as rough numbers and rough boundary intervals, which were derived from the basic notions of rough sets. Firstly, rough numbers and rough boundary intervals were utilized to address the vagueness and uncertainty in the decision-making process. Then, the rough group decision-making matrixes and rough pairwise comparison matrixes were constructed. After calculating the eigenvalues and eigenvectors of the rough pairwise comparison matrixes, the fundamental importance ratings were determined. Based on the market competitiveness analysis, the fundamental importance ratings were modified and the final importance ratings of the customer requirements were obtained. The RAHP method provided a new approach for analyzing and determining customer requirements and their weights in QFD. Finally, an example was given to illustrate the feasibility of the proposed method.

Key words: quality function deployment, customer requirements, analytic hierarchy process, rough sets theory, rough numbers, rough boundary intervals, importance ratings