The algebra of timed processes, ATP: theory and application
Information and Computation
Reliable communication over unreliable channels
Journal of the ACM (JACM)
On Communicating Finite-State Machines
Journal of the ACM (JACM)
Transaction Processing: Concepts and Techniques
Transaction Processing: Concepts and Techniques
Consistency for web services applications
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Implementing Web Service Protocols in SOA: WS-Coordination and WS-BusinessActivity
CECW '05 Proceedings of the Seventh IEEE International Conference on E-Commerce Technology Workshops
Business Process Execution Language for Web Services BPEL and BPEL4WS 2nd Edition
Business Process Execution Language for Web Services BPEL and BPEL4WS 2nd Edition
A formal analysis of the web services atomic transaction protocol with UPPAAL
ISoLA'10 Proceedings of the 4th international conference on Leveraging applications of formal methods, verification, and validation - Volume Part I
An MDE-based approach to the verification of SysML state machine diagram
Proceedings of the Fourth Asia-Pacific Symposium on Internetware
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WS-Business Activity specification defines two coordination protocols in order to ensure a consistent agreement on the outcome of long-running distributed applications. We use the model checker Uppaal to analyse the Business Agreement with Coordination Completion protocol type. Our analyses show that the protocol, as described in the standard specification, violates correct operation by reaching invalid states for all underlying communication media except for the perfect FIFO. Based on this result, we propose changes to the protocol. A further investigation of the modified protocol suggests that messages should be received in the same order as they are sent so that a correct protocol behaviour is preserved. Another important property of communication protocols is that all parties always reach their final states. Based on the verification with different communication models, we prove that our enhanced protocol satisfies this property for asynchronous, unreliable, order-preserving communication whereas the original protocol does not.