Separating Per-client and Pan-client Views in Service Specification

C. Atkinson, D. Stoll, H. Acker, P. Dadam, M. Lauer, M.U. Reichert

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    Abstract

    Service-oriented architecture is predicated on the availability of accurate and universally-understandable specifications of services which capture all the information that a potential user needs to know to use the service. However, WSDL, the most widely used service specification standard, only allows the syntactic signatures of the operations offered by a service to be described. This not only makes it difficult to specify context sensitive information, such as acceptable operation invocation sequences and drive service discovery through client-oriented requirements, it is also an inappropriate level of abstraction for a human friendly description of a service's capabilities. The current thinking is that context sensitive information such as operation sequencing rules should be described in an accompanying specification document written in an auxiliary language. For example, WS-CDL is a well known auxiliary language for writing choreography descriptions that capture interaction scenarios in terms of abstract roles and participants. However, this approach not only decouples the additional information from the core WSDL specification, it also describes it in terms of abstractions which may not match those used (implicitly or explicitly) by the service. In this paper we investigate this issue in greater depth, explore the different solution patterns and propose a new specification approach which rectifies the identified problems.
    Original languageUndefined
    Title of host publicationProceedings of the 2006 International Workshop on Service-oriented Software Engineering
    Place of PublicationNew York
    PublisherSpringer
    Pages47-53
    Number of pages7
    ISBN (Print)1-59593-398-0
    DOIs
    Publication statusPublished - 2006

    Publication series

    Name
    PublisherSpringer Verlag
    Number2

    Keywords

    • SCS-Services
    • IR-63212
    • METIS-238122
    • EWI-6212

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