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Domain Objects for Dynamic and Incremental Service Composition

  • Antonio Bucchiarone
  • Martina De Sanctis
  • Marco Pistore
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8745)

Abstract

A key feature of service-based applications (SBAs) is the capacity to dynamically define the composition of services independently available, which is required to achieve user goals. For this reason, to effectively deal with the obstacles due to continuous context changes, an incremental refinement of provided services is needed. We propose a new model that allows service functionalities to be defined partially, through the use of abstract activities. The refinement of these activities is postponed and performed incrementally at runtime, using the actual context as a guide. Our approach lets a service provider avoid the hard-coding of all service functionalities and their possible compositions at design time, delaying their refinement until the execution phase. Consequently the whole SBA’s design becomes modular and flexible to better meet the typical dynamism of SBA. We illustrate the approach through an example scenario from the urban mobility domain.

Keywords

Service Composition Core Layer Abstract Activity Business Process Execution Language Domain Object 
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

© International Federation for Information Processing 2014

Authors and Affiliations

  • Antonio Bucchiarone
    • 1
  • Martina De Sanctis
    • 1
  • Marco Pistore
    • 1
  1. 1.Fondazione Bruno KesslerTrentoItaly

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