关键词: 设计重用, 设计理性, 模型变换, 知识推理, 产品设计

Abstract: Based on the modeling of Design Rationale (DR),the variable-granularity transformation methods for DR model's different abstraction level were researched.In this method,the key steps such as DR model partition by OWL-based knowledge reasoning and the main thread extraction of DR context were included.Thus the DR models with different abstractions were constructed to optimize the DR model in its knowledge expression form and knowledge expression ability.It would provide strong support for DR reuse.A prototype system was developed for DR modeling and transformation,and the design process of bending die was taken as an example to validate the feasibility and effectiveness of the proposed methods.

Key words: design reuse, design rationale, model transformation, knowledge reasoning, product design