Research on Workflow Modeling Based on Object-oriented Colored Pet Net

For the requirements of workflow modeling and characteristics of existing modeling method, the integrated object-oriented colored Petri net (IOCPN) model is made. Its formal definition and functioning rules are given. Modeling concept of integrated and object-oriented, abstract transition and abstract place are introduced into this model. With reflecting dynamic relations among business activities, IOCPN model can express the interaction between business activities and correlative resources. In the end, the model is applied to modeling and analysis of integrated logistic support (ILS) workflow in equipment operation phase and validated to be integrated, abstract and dynamic.