Study of Performance Equivalent Simplification and Analysis of Stochastic Petri Nets

Performance equivalent simplificarion of the stochastic petri nets(SPN) is always one of the important problems to solve.Some scholars have studied the method of performance equivalence under the assumption of exponential distribution.This paper points out that the results of sequence subnet,choice subnet,and iteration subnet don’t depend on specific distribution,and the result of parallel subnet depends on specific distrubution.It discusses in detail the simplifying parallel transition structure theory in the condition of equality distribution.