Product concept design method for improving user satisfaction based on case-based reasoning

Product design methods based on case-based reasoning (CBR) generally lack sufficient consideration of customer opinions. To address this problem, a user satisfaction-oriented CBR method for product conceptual design is proposed. The method consists of three stages. First, a quantitative mapping relationship between design cases and user satisfaction is established, and a case base is constructed. Subsequently, new product structural solutions are generated by adopting case reuse or innovative design approaches. Finally, a multi-objective decision-making model incorporating multi-dimensional factors is established to solve for the optimal conceptual design scheme. A conceptual design project for a tablet computer demonstrates that the proposed method effectively enhances user satisfaction with design schemes. This method provides a new perspective for the research of case-based product design methods and is of great value for improving the design symmetry between the conceptual design scheme and user requirements, and thereby enhancing the quality of enterprise product conceptual design.