基于对象和实例互操作行为模型的工作流研究

Study of Workflow Oriented Behavior Models of Interoperability among Objects and Instances

通过工作流逻辑领域和活动领域的划分 ,建立了逻辑领域的过程对象和活动领域的活动实例局部互操作行为模型和全局互操作行为模型 ,并分别对这两个行为模型内部的互操作逻辑关系进行了分析和研究 ,从对象和实例集成的角度对工作流的运作机理进行了探讨 ,为实现工作流模型的扩展和行为活动的复用提供了理论基础 .并通过实例对工作流过程对象和活动实例全局互操作行为模型的运作关系进行了阐述和说明 .

By analyzing the ingredients that constituted the Workflow and studying the features in constructing the workflow, the domain of workflow was divided into two parts including the logical realm and active realm, and corresponding contents and characters were sum up. The model of workflow based on Markov chain was presented thereby. According to the model of workflow based on Markov chain the relation of interoperability between the process object in logical realm and activity instance in active realm was discussed. With the view of point of refinement and generalization, the relation of interoperability were decomposed into two ways, which were relation of local interoperability and relation of global interoperability. Corresponding local and global behavior models of interoperability were set up between the logical realm's process objects and the active realm's active instance. The interior logical relationships of interoperability in this two models was studied and analyzed respectively. By analyzing the workflow's operational mechanism, the theoretical basis for workflow model's expansion and behavior's multiple use was provided with a view to integrate the objects and the instances. Finally, an Instance illustrating the global behavior model of interoperability were proposed to explain the global running relationship between process objects and activity instances in workflow system. The principle and means of how to construct the behavior unit were provided. With the analysis and research based on the mode and mechanism embodied in the relationship between the process objects in logical realm and activity instance in active realm in the workflow system, the way and procedures were provided to setup and increase the relationship in modeling the Workflow system. It's included that enhancing the interoperability between the process objects and activity instance is an key way to improve the model's instruction and instance's pertinence.