Abstract: A model and analysis method of collaborative services based on Stochastic Petri net were put forward, a collaborative enterprise service in several of the most representative process was selected. We used stochastic Petri net to model these processes. Then,we took the logistics system of e-- commerce systems as example,based on stochastic Petri net modeling, used equivalent simplification, and performance evaluation and compared the original model and simplified model of system performance and computing time.

Key words: Stochastic Petri net,Collaborative service,E-business