摘要
针对大规模复杂工作流管理系统的性能分析问题,将一个基于随机Petri网的模型化简算法应用于实际的工作流管理系统,即首先将工作流管理联盟定义的工作流模型映射为随机工作流网,在随机工作流网的4种基本模型的基础上,利用PH分布对简化之后的模型进行性能分析。通过供应链系统模型的化简与实际情况的比较,验证了本方法能够对大规模复杂随机工作流网的模型进行化简,降低了计算复杂度,同时也为工作流管理系统的性能分析提供了有效的方法。
A method based on stochastic Petri nets is proposed to simplify stochastic workflow net- works for performance analysis of large-scale and complicated workflow management system. Workflow definition defined by WfMC is transformed into stochastic workflow networks. Based on the simplified procedures of four crucial models, PH distributions are used on the performance analysis of simplified models. Then a supply chain workflow network is analyzed by this method and in comparison, the simplified models and the real data have similar performance parameters, this means the method of this paper can tackle large-scale and complicated stochastic workflow networks.
出处
《湖北汽车工业学院学报》
2009年第1期45-49,共5页
Journal of Hubei University Of Automotive Technology
关键词
随机PETRI网
工作流
PH分布
化简
性能分析
stochastic Petri net
workflow
PH distributions
simplification
performance analysis
