QoS-aware services composition in P2PGrid environments. (8th June 2011)

• Record Type: Journal Article
• Authors: Di Stefano, Antonella; Morana, Giovanni; Zito, Daniele
• Is Part Of: International journal of grid and utility computing. Volume 2:Number 2(2011)
• Page Start: 139
• Page End: 147
• Publication Date: 2011-06-08
• Subjects: 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; Electronic data processing -- Distributed processing -- Periodicals; Electronic commerce -- Management -- Computer programs -- Periodicals; 004.605
• Languages: English
• ISSNs: 1741-847X

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.