Abstract
Improving Design for Variety (DFV) can satisfy more customer requirements, but increase the complexity of product design and manufacturing. QFD, also known as House of Quality (HOQ), is a method that transforms Customer Requirements (CRs) into Engineering Characteristics (ECs), and then transforms ECs into Components Design (CDs). DFV include the variety in products and in components, and the product variety needs to be realized in component variety. With QFD, it is possible to transfer the requirement of CR to the requirement of CD including variety requirement. How QFD responds to DFV management so that it can plan ECs considering the impact of design changes on CDs was examined. This paper proposed a QFD optimization model that can quantify the interrelationships among ECs and support DFV management. A case study on an automobile development verified the effectiveness and feasibility of the proposed model.
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