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Amadeus: A Holistic Service-oriented Environment for Grid Workflows

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3 Author(s)
Ivona Brandic ; University of Vienna, Austria ; Sabri Pllana ; Siegfried Benkner

In this paper, we present Amadeus, which is a holistic service-oriented environment for QoS-aware grid workflows. Amadeus considers user's requirements, in terms of QoS constraints, during workflow specification, planning, and execution. Within the Amadeus environment, workflows and the associated QoS constraints are specified at a high-level using an intuitive graphical notation. A set of QoS-aware service-oriented components is provided for workflow planning to support automatic constraint-based service negotiation and workflow optimization. For improving the efficiency of workflow planning, we introduce a QoS-aware workflow reduction technique. By following either a static or a dynamic planning strategy the workflow is executed using the selected services in the manner that the specified user's requirements are met. For each phase of the workflow lifecycle we experimentally evaluate the corresponding Amadeus components

Published in:

2006 Fifth International Conference on Grid and Cooperative Computing Workshops

Date of Conference:

Oct. 2006