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On Distributed Service Selection for QoS Driven Service Composition

  • Fei Li
  • Fangchun Yang
  • Sen Su
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4082)

Abstract

The service oriented paradigm promises dynamic service discovery and on-the-fly service composition to fulfill user requirements. For the dynamic and heterogeneous nature of service and network, ensuring end-to-end QoS (Quality of Service) becomes a challenge in service composition. This paper proposes a distributed QoS registry architecture, in which QoS registries could maintain services cooperatively and exchange information. Then we present a model combining network QoS and service QoS together to show their impact on end-to-end QoS. Based on the distributed QoS registry and combined QoS model, we present a distributed service selection algorithm to find optimal service composition plan. Experimental results show that the algorithm achieves excellent selection result with outstanding performance in our architecture.

Keywords

Service Composition Service Selection Success Ratio Feasible Path Candidate Service 
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

  • Fei Li
    • 1
  • Fangchun Yang
    • 1
  • Sen Su
    • 1
  1. 1.State Key Lab. of Networking and SwitchingBeijing University of, Posts and TelecommunicationsBeijingP.R.China

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