中文说明：
工作流系统模型的性能等价分析讨论了基于随机Petri网的工作流系统的顺序、并行、选择、循环4种基本模型,并详细推导了这4种基本模型的性能等价公式.最后通过现实中的一个工作流实例来说明如何建立相应的随机Petri网模型,以及如何利用这些性能等价公式来计算工作流的性能参数.给出了定量分析工作流系统性能的通用方法,通过用这些等价公式不仅可以对复杂的系统进行性能等价化简,而且还可以得到性能参数的乘积解
English Description：
The performance Equivalence Analysis of workflow system model this paper discusses four basic models of workflow system based on Stochastic Petri nets: sequence, parallel, selection and cycle, and deduces the performance equivalence formulas of these four basic models in detail Finally, a real workflow example is given to illustrate how to establish the corresponding stochastic Petri net model, and how to use these performance equivalent formulas to calculate the performance parameters of workflow A general method for quantitative analysis of workflow system performance is given. By using these equivalent formulas, not only the complex system performance can be reduced equivalently, but also the product solution of performance parameters can be obtained