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QoS Analysis in Heterogeneous Choreography Interactions

  • Ajay Kattepur
  • Nikolaos Georgantas
  • Valérie Issarny
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8274)

Abstract

With an increasing number of services and devices interacting in a decentralized manner, choreographies are an active area of investigation. The heterogeneous nature of interacting systems leads to choreographies that may not only include conventional services, but also sensor-actuator networks, databases and service feeds. Their middleware behavior within choreographies is captured through abstract interaction paradigms such as client-service, publish-subscribe and tuple space. In this paper, we study these heterogeneous interaction paradigms, connected through an eXtensible Service Bus proposed in the CHOReOS project. As the functioning of such choreographies is dependent on the Quality of Service (QoS) performance of participating entities, an intricate analysis of interaction paradigms and their effect on QoS metrics is needed. We study the composition of QoS metrics in heterogeneous choreographies, and the subsequent tradeoffs. This produces interesting insights such as selection of a particular system and its middleware during design time or end-to-end QoS expectation/guarantees during runtime. Non-parametric hypothesis tests are applied to systems, where QoS dependent services may be replaced at runtime to prevent deterioration in performance.

Keywords

Heterogeneous Choreographies Quality of Service Interaction Paradigms Middleware Connectors 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Ajay Kattepur
    • 1
  • Nikolaos Georgantas
    • 1
  • Valérie Issarny
    • 1
  1. 1.Equipe ARLESInria Paris-RocquencourtFrance

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