Ludwig, André, Mariusz Momotko, Michał Gajewski, Ryszard Kowalczyk, Marek Kowalkiewicz and Jian Ying Zhang (2007)

Towards Adaptive Management of QoS-Aware Service Compositions - Execution Strategies

in: Kowalczyk, Ryszard (ed.): The 4th International Conference on Grid Service Engineering and Management, GSEM 2007: Leipzig, Germany, September 25, 2007 ; conference proceedings: 117, Ges. für Informatik: Bonn, (2007), 110-122.

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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 describe an approach towards adaptive management of QoS-aware service compositions. This approach integrates well known concepts and techniques and proposes various execution strategies based on dynamic selection and negotiation of services, contracting based on service level agreements, service enactment with flexible support for exception handling, monitoring of service level objectives, and profiling of execution data.

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