Titlebook: Web Services and Formal Methods; 7th International W Mario Bravetti,Tevfik Bultan Conference proceedings 2011 Springer Berlin Heidelberg 2

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Soundness-Preserving Refinements of Service Compositions,s. Starting from a sound service composition, we show how to check whether such a pair of places can be refined by another sound service composition, so that soundness is preserved through the refinement.

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Formal Semantics and Implementation of BPMN 2.0 Inclusive Gateways,semantics. We sketch two ways of implementing the semantics using algorithms based on incrementally updated data structures and also discuss distributed communication-based implementations of the two algorithms.

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Passive Testing of Web Services, invariants, called . to deal with more subtle characteristics. They express properties of a set of systems, by making relations between the set of recorded local logs. In addition, we show that global invariants are able to detect the class of undetected errors for local invariants.

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Passive Testing of Web Services, invariants, called . to deal with more subtle characteristics. They express properties of a set of systems, by making relations between the set of recorded local logs. In addition, we show that global invariants are able to detect the class of undetected errors for local invariants.

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On Nondeterministic Workflow Executions,he latter and measure the complexity of service execution as the amount of needed resources and controlling mechanism for executing nondeterministic service compositions. We formalize the model and complexity problem and develop technical results for this problem in the general setting as well as special cases.

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