针对协同服务的结构关系和特点,研究了协同服务模型,将协同服务模型分为内部服务模型和外部服务模型,此方法中可以较好地保护协同服务的内部信息.给出了基于随机Petri网的电子商务背景下企业协同服务中几种最具有代表性的内部服务模型到外部服务模型之间的转化定理及相应的证明.将该模型分析方法应用于电子商务下单流程分析之中,数值计算结果说明了该方法的有效性.
To meet characteristics of collaboration service's structural relationship, a collaborative service model was studied, which is divided into internal and external service models. This method can well protect collaboration service insider information. Severn equivalent simplification theorems of typical collaboration e-commerce service modes based on Stochastic Petri-net and their verification are provided. This method was applied to e-commerce order process analysis, and numerical results show effective.