Model-based testing of web service compositions

The use of web services integrated in different applications, especially the composition of services, brings challenges for testing due to their complex interactions. In this paper, we propose an event-based approach to test web service compositions. The approach is based on event sequence graphs which we extend by facilities to consider the specific features of web service compositions. An enterprise service bus component supports the test case execution. A case study, based on a commercial web application, demonstrates the feasibility of the approach and analyzes its characteristics. The results of empirical work suggest that the approach is a promising candidate to reach a high level of confidence and reliability.