摘要
为了提高 CAD系统的健壮性 ,以 Petri网为理论基础 ,提出了一种具有奇异情况处理能力的 CAD系统模型—— Broker- Employee结构 .它具有如下特点 :可计算性 (应用 Petri网建模 ,可以进行数学分析 )、可复用性 (适用范围广 ,可以重复利用 )和可替换性 (具有统一、标准的接口 ,可以用具有相同接口的 Em ployee进行替换 ) .同时也阐述了应用这种模型建立起相应层次结构的方法 。
Based on Petri net, a Broker Employee architecture to deal with singularity cases in CAD systems is presented. Some potential advantages of such architecture are computability——it can be mathematically analyzed through the Petri net architecture; reusability——it can be used repeatedly, since it is compatible with a lot of software; exchangeability——Employees conforming to standard interface specification can be mutually substituted. It can make the CAD systems more stable. Additionally, an approach to create hierarchical structure is also proposed. At last, an example is given to illustrate the mathematical analysis of our method.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2000年第12期941-946,共6页
Journal of Computer-Aided Design & Computer Graphics
基金
国家自然科学基金!(6 9772 0 19)
