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在分析并行工程特点的基础上，论述了协同设计的实质。为了满足紧密藕合协同设计的要求，提出引用黑板机制和自治体；分析了协同设计的类型，按照协同的程度给出了三种协同设计的方式，并介绍了一种计算机支持协同设计环境；最后以消失模设计为实例，给出了基于黑板的多自制体协同设计系统的结构，并简述了协同设计过程。
On the basis of analyzing the characteristics of parallel engineering, the essence of collaborative design is discussed. In order to meet the requirements of close collaborative design, this paper proposes a reference to blackboard mechanism and autonomous body. The types of collaborative design are analyzed. Three collaborative design approaches are given according to the degree of synergy, and a computer-supported collaborative design environment is introduced. Finally Taking the design of the lost foam as an example, the structure of the collaborative design system based on blackboard is given, and the process of collaborative design is briefly described.