Modeling Web Service Behavior based on Workflow Nets and Consume-Produce-Read Nets

To support automated service composition, adaptation and verification, there should be a formal model for web service behavior description. For the sake of accurately representing web service behavior, inspired by workflow nets and consume-produce-read nets, we propose a novel formal model for web service behavior description, which can not only describe the control flow, but also the data flow as well as the communication flow of the web service accurately. The model regards tokens, data and messages as control resources, data resources and communication resources and adopts completely different store-and-fetch strategies for each kind of resources respectively.