MULTI SPACE QUALITY FUNCTION DEPLOYMENT USING INTERPRETIVE STRUCTURAL MODELING

Abstract

Due to the specialization and professionalization of design work, sharing product information between members of a product development team is a crucial aspect of the design process. In the previous study, the Multispace Quality Function Deployment (M-QFD), which allows designers to extract design elements with respect to diverse requirements, was proposed on the basis of the multispace design model. This study improves M-QFD using Interpretive Structural Modeling (ISM), which constructs a directed graph of the design elements and enables designers to understand their relationships. The proposed M-QFD gives design information (designer's idea) to other designers and enables them to easily construct a process of redesign or design change without an inadequate designing order causing the design reconsideration. Additionally, a design example is presented to demonstrate the proposed M-QFD.