Abstract: 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.

Key words: Change propagation, Petri nets, Process layer, Service layer, Service-oriented business process model