Observability and controllability issues in conformance testing of Web service compositions

International audienceWe propose a model-based black-box testing approach to test conformance of Web Service Compositions (WSC). When a WSC under test makes use of implementations of Web Services, two situations may occur: either communications between the WSC and the Web Services are observable or hidden internal actions. We show by means of an example how to generate test cases whose verdicts are provided with explanations taking into account the status of the Web Service