Towards adaptive management of qos-aware service compositions – functional architecture

Authors:
Mariusz Momotko;Michał Gajewski;André Ludwig;Ryszard Kowalczyk;Marek Kowalkiewicz;Jian Ying Zhang
Affiliations:
Rodan Systems S.A., Warsaw, Poland;Rodan Systems S.A., Warsaw, Poland;University of Leipzig, Leipzig, Germany;Swinburne University of Technology, Hawthorn, Victoria, Australia;Poznan University of Economics, Poznan, Poland;Swinburne University of Technology, Hawthorn, Victoria, Australia
Venue:
ICSOC'06 Proceedings of the 4th international conference on Service-Oriented Computing
Year:
2006

Citing 3
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Abstract

Service compositions enable users to realize their complex needs as a single request. Despite intensive research, especially in the area of business processes, web services and grids, an open and valid question is still how to manage service compositions in order to satisfy both functional and non-functional requirements as well as adapt to dynamic changes. In this paper we propose an (functional) architecture for adaptive management of QoS-aware service compositions. Comparing to the other existing architectures this one offers two major advantages. Firstly, this architecture supports various execution strategies based on dynamic selection and negotiation of services included in a service composition, contracting based on service level agreements, service enactment with flexible support for exception handling, monitoring of service level objectives, and profiling of execution data. Secondly, the architecture is built on the basis of well know existing standards to communicate and exchange data, which significantly reduces effort to integrate existing solutions and tools from different vendors. A first prototype of this architecture has been implemented within an EU-funded Adaptive Service Grid project.