Title: QoS-aware services composition in P2PGrid environments

Authors: Antonella Di Stefano, Giovanni Morana, Daniele Zito

Addresses: Department of Information and Telecommunication Engineering, University of Catania, V.le A. Doria, 6 95125 Catania, Italy. ' Department of Information and Telecommunication Engineering, University of Catania, V.le A. Doria, 6 95125 Catania, Italy. ' Department of Information and Telecommunication Engineering, University of Catania, V.le A. Doria, 6 95125 Catania, Italy

Abstract: One of the most significant discussions about service-oriented architectures concerns the creation of new complex services through the composition, under Quality of Service (QoS) constraints, of simple basic services. In fact, although the composition represents a flexible and powerful strategy for the creation of new services, it raises many problems related to the coordination of heterogeneous services offered by different providers. In this paper, the authors propose an innovative strategy for the QoS-aware services composition in Grid oriented Peer-to-Peer networks (P2PGrid), focusing the attention on the phases regarding the creation of the |execution path| for the composed service and the maintenance of the QoS level during the execution of the services.

Keywords: P2P grid environments; peer-to-peer grid; services composition; quality of service; QoS compensation; service level agreements; graph based optimisation; service-oriented architectures; SOA; grid computing.

DOI: 10.1504/IJGUC.2011.040601

International Journal of Grid and Utility Computing, 2011 Vol.2 No.2, pp.139 - 147

Received: 03 Sep 2010
Accepted: 04 Feb 2011

Published online: 07 Jun 2011 *

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