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QoS-Aware Web Services Composition Using Transactional Composition Operator

  • An Liu
  • Liusheng Huang
  • Qing Li
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4016)

Abstract

As composite web services are often long lasting, loosely coupled, and cross application and administrative boundaries, transactional support is required. Most of the work has so far focused on relaxing some ACID properties of the traditional transaction model, with little being done on investigating how the transaction can influence the quality of service (QoS) of a composite web service. In this paper, a composition model is proposed to evaluate the quality of service (QoS) of a composite service with various transactional requirements. The proposed model is based on a transactional composition operator, which extends the traditional workflow patterns and integrates transactional properties. Using a recursive approach, the QoS of a composite service can easily be calculated, in spite of transactional requirements given by service providers or end users.

Keywords

Service Composition Component Service Composite Service Execution Cost Composition Pattern 
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 2006

Authors and Affiliations

  • An Liu
    • 1
    • 2
    • 3
  • Liusheng Huang
    • 1
    • 2
  • Qing Li
    • 2
    • 3
  1. 1.Department of Computer Science and TechnologyUniversity of Science & Technology of ChinaHefeiChina
  2. 2.Joint Research Lab of Excellence CityU-USTC Advanced Research InstituteSuzhouChina
  3. 3.Department of Computer Science City University of Hong KongHong KongChina

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