An impact analysis model for distributed Web service proces

In the distributed cross-organization business process, each organization only knows its private orchestration and partial public choreography, It doesn´t have any information about the global process. If one organization has to change, it is difficult to compute the impact imposed on other organizations. In this paper, we propose a method to get the global services dependency matrix automatically through analysing the orchestrations and choreography. Then we introduces the service impact analysis model based dependency matrix and intraservice and inter-service change propagation, through which we can ascertained the impact caused by the changes.