AN APPROACH TO HPN MODEL OF THE SCHEDULING PROBLEM

This paper introduces the concept of Hierarchical Petri Nets（HPN）.TheHPN model can not only imitate the local behaviors of a system within one layer,but also express the entire features of the system by some connecting strategies.Through modeling of the scheduling problem by HPN, we describe a method to use HPN model for analyzing the scheduling problem, which is important in finding an effective scheduling algorithm.