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Towards Quality of Service Support for Grid Workflows

  • Ivona Brandic
  • Siegfried Benkner
  • Gerhard Engelbrecht
  • Rainer Schmidt
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3470)

Abstract

Service-oriented workflow languages are being considered as a key programming paradigm for composing Grid applications from basic services. In this paper we present QoS support for grid workflows addressing the special requirements of time-critical Grid applications, as for example medical simulation services. QoS support for grid workflow is currently being developed in the context of the Vienna Grid Environment, a service-oriented Grid infrastructure for the provision of parallel simulation codes as QoS-aware Grid services, which are capable of dynamically negotiating with clients various QoS guarantees, e.g. with respect to execution time and price. We use a real world Grid service for medical image reconstruction to describe the main features of our approach and present the first prototype of a QoS-aware workflow engine which supports dynamic QoS negotiation and QoS-aware workflow execution.

Keywords

Single Photon Emission Compute Tomography Grid Service Business Process Execution Language Execution Engine Medical Image Reconstruction 
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 2005

Authors and Affiliations

  • Ivona Brandic
    • 1
  • Siegfried Benkner
    • 1
  • Gerhard Engelbrecht
    • 1
  • Rainer Schmidt
    • 1
  1. 1.Institute for Software ScienceUniversity of ViennaViennaAustria

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