Study. Otpn-based E-commerce System Concurrency Issues

E-Commerce system has characteristics of discrete, multifactor, dynamic and concurrency etc. especial concurrency question influencing system's stability and security all the time, thus influencing the wide application of E-Commerce deeply. The paper proposes one kind of modeling method which is based on Object-Oriented Time Petri Net, the method combines Object-Oriented technology with Time Petri Net theory, thus utilizing advantage of Petri Net' figure expressing clearly and mathematics analysizing and proving rigorously, also leading time parameter into Petri Net to validly appraise dynamic performance of system, these not only resolve state exploding in setting up complicated system modeling, but also make the modeling system reusable and maintainable. On the basis of setting up intact OTPN model of E-commerce system, The paper also passes simulation experiment indicating the realization mechanism and treatment method of OTPN are feasible and effective, thus offering a more effective tool for resolving concurrency question of E-Commerce system, at the same time offering the accurate decision foundation for construction and technology of E-Commerce system.