Key characteristics extraction method in product concept design

To improve the product design quality, a key characteristics (KCs) extraction method in the product concept design was proposed. Firstly, a KCs extraction process in product concept design was established. In order to transform customer requirements into product characteristics, a Human-Product transform method was proposed. Secondly a KCs extraction algorithm was presented. Customer requirements weights were computed by maximizing deviation method. According to customer requirements changing trend, six quadrant plots based on KANO model and ratio of customer satisfaction evaluation was proposed. Finally, a case study illustrates the method feasibility.