Research and design of dynamic workflow modeling method

To improve the workflow for processing uncertainty, a dynamic workflow model based on Event-Condition-Action (ECA) rules and activities composition was proposed. The model capsulized the uncertainty of processes by using flexible activities and restricted the particularization of flexible activities by using selection rules and composition rules. Furthermore, an algorithm was designed to automate the composition of activities with the best concurrence, which can make full use of the resources and enhance the efficiency of processes. At the same time, another algorithm was designed to verify the activity's selection and composition, which can ensure the validity of sub-processes resulting from the particularization of flexible activities.