带数据流的面向服务的业务流程模型变化传播Petri网方法

为了灵活适应不断变化的业务需求,需要对流程模型进行调整。在业务逻辑整合过程中,业务逻辑可能发生变化,因此对业务变化及其传播进行分析是十分关键的。已有的研究方法主要基于控制流结构来分析和研究业务的变化域和变化传播问题,忽略了模型所含数据和服务结构的信息。文中对带数据信息的面向服务业务流程模型的变化传播方法和变化域定位进行分析和研究,主要关注服务层和流程层之间的变化传播问题。首先, 分析 流程层(服务层)的变化操作给模型的服务层(流程层)带来的变化影响范围,并分别提出了服务层变化传播算法(Service Layer Change Propagation Algorithm,SLCPA)和流程层变化传播算法(Process Layer Change Propagation Algorithm,PLCPA)。最后,通过一个具体的实例证明了所提方法的可行性和有效性。

Change Propagation Method of Service-oriented Business Process Model with Data Flows Based on Petri Net

In order to adapt to changing business requirements flexibly,it is necessary to adjust the process models.In the process of business integration,business logic may change,and thus it is critical to analyze the investigations of business changes and its propagation.The existed methods study the business change regions and change propagation me-thods mainly from the aspect of control flow structures,neglectes the data information and service structures of the mode.In this paper,the change propagation method and the change domain regions were analyzed in the service-oriented business process model with data information.It focused on the propagation problem between the service layers and the process layers.Firstly,by a mutation operation in a service layer (or process layer),the direct influence region of the change was discussed in detail,and two change propagation algorithms were proposed,which are the service layer change propagation algorithm named SLCPA,and the process layer change propagation algorithm named PLCPA respectively.Finally,a case example was given to illustrate the feasibility and effectiveness of the proposed method.