Advancement in Conventional QFD Process by Integrating it with Soft Computing

As we know, in QFD planning process, the single objective point of view that focuses on maximizing customer satisfaction needs to be extended by considering the company’s other design related objectives Considering the multi- objective nature of the design problem, here we propose a fuzzy multiple objective decision framework that included not only fulfilment of engineering characteristics to maximize customer satisfaction, but also maximization of extendibility and minimization of technical difficulty of engineering characteristics as objectives subject to a financial budget constraint to determine target levels of engineering characteristics in product design. The fuzziness of relationships in QFD modelling justifies the use of fuzzy regression to determine the functional relationships between Customer Needs and Engineering Characteristics (ECs), and among engineering characteristics.