Optimization of the product design through Quality Function Deployment (QFD) and Analaytical Hierarchy Process (AHP): A case study in a ceramic washbasin

Abstract

QFD is a methodology, which establishes a relationship between product and customer, determines product.s sales ability and carry out it to a high level during the process.In this study, QFD methodology, which is used in several industries, was implemented in the sanitary production industry. In this purpose, the washbasin, which is called as .Potsink. produced by Vitra, was chosen and examined implementation ability of the methodology. The aim for this choice is that Potsink.s design is different from usual washbasin forms and because of this reason, some sales problems would be appeared also there are some ergonomical and functional problems was observed.In the first step, which is developed by the customer.s voice, Analytic Hierarchy Process AHP was used. The relationship, which is between product and customer.s requirements, is determined by Analytic Hierarchy Process AHP.After this step, with customer requirements and technical details, which is matched with, are put in the house of quality (HoQ). Fallowing this step, improvement ratio and sales points are taken place in the house. Finally calculate all items and evaluated.