根据产品设计过程的实际特点，提出一个数据－过程互动模型（ DPIM， data and process interplayed model），该模型能有效地描述产品数据和设计过程间的动态交互行为。基于该动态模型，设计过程的描述和执行能适应设计数据的动态变化，而产品数据伴随着设计过程的进行不断丰富和完善，从而使得数据和过程的管理能紧密地集成在一起。由于设计数据的变化和过程的定义及执行是以互动的方式交织进行的，该模型能较好地描述产品设计过程的动态性。
Taking a microwave product as an example, a system of integrated assembly structure design is presented. Getting design constraints from the upstream design section through product data management(PDM), the system generates the assembly scheme using the case? based method, then assigns the design requirements into each component of the assembly. The detail design for each component can be performed under these design constraints. In order to practise concurrent design, the system sends the final design result to the upstream section and downstream section through PDM to achieve information sharing and integration.
