Determining the Importance Ratings of Customer Requirements of Automotive Clutch Based on Quality Function Deployment

Abstract

To obtain more comprehensive customer requirements and accurately determine the importance ratings of customer requirements in automotive clutch Quality Function Deployment (QFD), Affinity Diagram, expert evaluation method and rough Analytic Hierarchy Process (RAHP) were introduced in this paper. Firstly, fourteen requirements were identified for automotive clutch by using Affinity Diagram. Then rough numbers and rough boundary intervals were utilized to characterize vagueness and uncertainty of customer requirements, and constructed rough group decision matrices and rough pairwise comparison matrices. Finally, the importance ratings of customer requirements were determined by solving eigenvalues and eigenvectors of rough pairwise comparison matrices.