Research on the Dynamic Evolution of Product Models Driven by Customer Requirement Based on Similar Cases

Abstract

Abstract. Individualized product customization aims to satisfy specific customer requirements through configuration design. However, most existing methods treat customer requirements as static inputs and struggle to accommodate their dynamic and unpredictable evolution. To address this limitation, this article proposes a customer requirement-driven dynamic evolution method for product models based on similar cases. The method introduces attribute nodes as intermediate representation units to unify requirement modeling and product modeling. Attribute node re-instantiation rules are defined to regenerate attribute values when requirements change, while design constraints ensure feasibility and consistency during product evolution. Customer requirements are divided into basic and dynamic types, enabling continuous customer participation beyond initial configuration. Basic requirements and customer preferences are used to retrieve similar product cases, and both basic and dynamic requirements subsequently drive product case evolution toward customer expectations. A case study of an air purifier product demonstrates the feasibility and effectiveness of the proposed method in supporting dynamic product evolution and customer participation.