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    Assistant Professor

    Computer Science Department, University of Bologna, Bologna, Italy

    Towards a unifying theory for web services composition

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    Recently the term orchestration has been introduced to address composition and coordination of web services. Several languages used to describe business processes using this approach have been presented, and most of them use the concepts of long-running transactions and compensations to cope with error handling. WS-BPEL, which is currently the most used orchestration language, also provides a Recovery Framework. However its complexity hinders rigorous treatment. In this paper, we address the notion of orchestration from a formal point of view with particular attention to transactions and compensations. In particular, we introduce web , an untimed version of web , and the related theory, as a foundational unifying framework for orchestration able to meet composition requirements and to encode the whole BPEL itself.

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    Description

    Title : Towards a unifying theory for web services composition
    Author(s) : Manuel Mazzara, Ivan Lanese
    Abstract : Recently the term orchestration has been introduced to address composition and coordination of web services. Several languages used to describe business processes using this approach have been presented, and most of them use the concepts of long-running transactions and compensations to cope with error handling. WS-BPEL, which is currently the most used orchestration language, also provides a Recovery Framework. However its complexity hinders rigorous treatment. In this paper, we address the notion of orchestration from a formal point of view with particular attention to transactions and compensations. In particular, we introduce web , an untimed version of web , and the related theory, as a foundational unifying framework for orchestration able to meet composition requirements and to encode the whole BPEL itself.
    Subject : unspecified
    Area : Other
    Language : English
    Year : 2006

    Affiliations Computer Science Department, University of Bologna, Bologna, Italy
    Editors : Mario Bravetti, Manuel Nunez, Gianluigi Zavattaro
    Conference_title : Web Services and Formal Methods Third International Workshop WSFM 2006 Vienna Austria September 89 2006 Proceedings
    Volume : 4184
    Publisher : Springer
    Pages : 257-272
    Url : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.110.3155

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