Evaluation Of Product Conceptual Design Based On Customer Satisfaction

The realization of product value depends on the performance of the product in the market.The performance of the product in the market depends on the degree of customer acceptance.The customer's acceptance of the product depends on the customer's satisfaction.The key to determining whether a product is satisfied by a customer has begun to evolve in the process of product development,especially in the early stages of product development process,that is,product concept design stage.Product is an objective reality,the satisfaction is the subjective psychological feelings.The design which can meet the needs of consumers and pleasure of product form are the challenges faced by designers and enterprises,and conceptual design occupies a very important position in enhancing customer's satisfaction.Therefore,it is of great theoretical reference and practical application value to explore and study the customer satisfaction in the conceptual design stage.Starting from the emotional engineering,product design,systems engineering,this paper constructs the knowledge system of customer satisfaction in evaluating application in conceptual design,establishes quantitative evaluation index system of conceptual scheme based on satisfaction degree,and provide effective assistance means for evaluation and design optimization in the design stage.The main research includes the following three aspects.(1)Through the analysis of the conceptual design stage of the product design process,the whole process and technical method of the research sample plan and the concept design stage evaluation index are determined,and the concept of the lamp is taken as an example.Using this process,four research sample schemes of the concept of lamp design and conceptual design satisfaction evaluation index system constructed by 5 primary concept evaluation indexes and 11 secondary concept evaluation indexes were established,thus lay the foundation for establishing the evaluation model of product concept scheme satisfaction(2)The importance of the conceptual design evaluation index and the satisfaction degree of the evaluation index are studied,and the method of product concept design evaluation based on customer satisfaction is established.First,the Fuzzy Analytic Hierarchy Process is used to calculate the index importance of the indicators at all levels.Then,through the investigation of the second-level satisfaction index of each research program,the satisfaction degree of the second-level evaluation index is obtained.Finally,using customer satisfaction theory to construct customer satisfaction evaluation method of product conception stage with concept of conceptual design and importance and satisfaction as the core,to guide the evaluation decision of product conceptual program.(3)In order to better product follow-up design,if the decision-maker is not satisfied with the conceptual scheme,the design optimization is carried out on the basis of the satisfaction theory,and the optimization method of the product conceptual design scheme is established.Firstly,the conceptual evaluation index system of the selected scheme is deconstructed.Secondly,using the customer satisfaction theory to analyze the relationship between the overall satisfaction degree and the index satisfaction degree and the importance degree of other scheme and selected conceptual scheme.Finally,the deconstruction of the index and the importance of the index,the comparative analysis of the satisfaction analysis,providing reference for optimizing decision-making program,thus,the program satisfied by decision-makers can be obtained and better guide the follow-up design of the product.