摘要： 提出一种基于随机Petri网的柔性工作流可用性分析方法。给出基本的异常处理模型，以电子商务配送系统(ELMS)为例，利用随机Petri网对系统进行SPN建模，分析ELMS系统的各种可用性参数。实验结果表明，该方法能准确、有效地对支持异常处理操作的柔性工作流进行可用性分析。

关键词: 异常, 柔性工作流, 随机Petri网, 电子商务

Abstract: This paper presents a stochastic Petri net support for exception handling flexible workflow modeling and performance analysis method. It gives a few basic exception handling models, takes E-business Logistics Management System(ELMS) as an example, models based on the stochastic Petri net by SPN, analyzes the flexible system’s availability, reliability and other performance parameters. Results show that the method is effective.

Key words: exception, flexible workflow, stochastic Petri net, E-business

中图分类号: 

• TP393