基于Petri网的信息系统层次结构分析

Analysis of Hierarchy Structure in Information System Based on the Petri Nets

具有网络通讯结构的信息系统在以Petri网为模型进行描述时可以归结为两类加权有向网络系统的研究,文章首先将Petri网模型描述下的信息系统结构分解为由两类性质不同的系统要素构成的有向网络图,并对这两类有向网络图引进了加权核和加权核度的概念和定义。在此基础上,提出了基于加权有向网络图的信息系统结构层次分析法。

Information system with network communication structure when be described by Petri nets.May be studied as the weighted directed network system.First this paper breaks down the Information System structure model that be de-scribed by Petri nets to two directed network figures in view of two different composition key elements.And then the definitions and concepts of weighted core and coritivity about these two directed network figures are defined in this paper.Using these definitions and concepts that a new method of hierarchy analysis to Information System structure based on the weighted directed network figured has been presented.