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    Declarative policies for web service selection

    Marchi, M. and Mileo, A. and Provetti, Alessandro (2005) Declarative policies for web service selection. In: UNSPECIFIED (ed.) 6th IEEE International Workshop on Policies for Distributed Systems and Networks: POLICY 2005. IEEE Computer Society, pp. 239-242. ISBN 0769522653.

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    We describe a modified grid architecture that allows the specification and enforcement connection policies to grid on Web Services. This is accomplished by interposing a policy enforcement engine between a calling application and the relative client stubs. Only service requests need be analyzed and filtered. Connection policies are conveniently expressed in the declarative policy specification language PPDL which allows expressing simple preferences and integrity constraints. PPDL policies are evaluated by translating them into a logic program with ordered disjunctions and calling the psmodels interpreter. This process is completely transparent to both client applications and Web/Grid services. There are clear advantages in having the connection logic expressed declaratively and externally to applications.


    Item Type: Book Section
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Computing and Mathematical Sciences
    Depositing User: Sarah Hall
    Date Deposited: 27 Jul 2021 13:27
    Last Modified: 09 Aug 2023 12:51


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