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Adding Sessions to BPEL

Author(s): Jonathan Michaux | Elie Najm | Alessandro Fantechi

Journal: Electronic Proceedings in Theoretical Computer Science
ISSN 2075-2180

Volume: 98;
Issue: Proc. WWV 2012;
Start page: 60;
Date: 2012;
Original page

By considering an essential subset of the BPEL orchestration language, we define SeB, a session based style of this subset. We discuss the formal semantics of SeB and we present its main properties. We use a new approach to address the formal semantics, based on a translation into so-called control graphs. Our semantics handles control links and addresses the static semantics that prescribes the valid usage of variables. We also provide the semantics of collections of networked services. Relying on these semantics, we define precisely what is meant by interaction safety, paving the way to the formal analysis of safe interactions between BPEL services.
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