Stepwise Refinable Service Descriptions: Adapting DAML-S to Staged Service Trading

  • Michael Klein
  • Birgitta König-Ries
  • Philipp Obreiter
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2910)


In order for service-oriented architectures to become successful, powerful mechanisms are needed that allow service requestors to find service offerers that are able to provide the services they need. Typically, this service trading needs to be executed in several stages as the offer descriptions are not complete in most cases and different parameters have to be supplemented by the service requestor and offerer alternately. Unfortunately, existing service description languages (like DAML-S) treat service discovery as a one shot activity rather than as a process and accordingly do not support this stepwise refinement. Therefore, in this paper, we introduce the concept of partially instantiated service descriptions containing different types of variables which are instantiated successively, thereby mirroring the progress in a trading process. Moreover, we present possibilities how to integrate these concepts into DAML-S syntactically.


Service Requestor Service Description Service Trading Service Execution Service Advertisement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Michael Klein
    • 1
  • Birgitta König-Ries
    • 1
  • Philipp Obreiter
    • 1
  1. 1.Institute for Program Structures and Data OrganizationUniversität KarlsruheKarlsruheGermany

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