A MULTI-AGENT SELECTION OF MULTIPLE COMPOSITE WEB SERVICES DRIVEN BY QOS

Fatma Siala, Khaled Ghédira

2011

Abstract

As the number of functionally similar Web Services from providers with different Quality of Service's (QoS) scores is increasing, a selection needs to be made to determine which services are to participate in a given composite service. Moreover, QoS becomes one of the most important factors for Web Service selection. Indeed, one of the main assets of service-orientation is a composition to develop higher level services, so-called composite services, by re-using existing services. However, for a composition, we can have different combinations and execution paths. Particularly, a composite service can generate different schemes that give various QoS scores. We propose, in this paper, two frameworks. The first framework deals with the selection of composite Web services on the base of Multi-Agents negotiation. The objective of these agents is to find out the best Composite QoS (CQoS) based on Web services availability. The second framework improves the first one by supporting different combinations and execution paths. The proposed Multi-Agents frameworks are compared to an existing approach in terms of execution time and QoS's score. Experiments have demonstrated that our frameworks provide reliable results in comparison with the existing approach.

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Paper Citation


in Harvard Style

Siala F. and Ghédira K. (2011). A MULTI-AGENT SELECTION OF MULTIPLE COMPOSITE WEB SERVICES DRIVEN BY QOS . In Proceedings of the 1st International Conference on Cloud Computing and Services Science - Volume 1: MAS, (CLOSER 2011) ISBN 978-989-8425-52-2, pages 675-684. DOI: 10.5220/0003555306750684


in Bibtex Style

@conference{mas11,
author={Fatma Siala and Khaled Ghédira},
title={A MULTI-AGENT SELECTION OF MULTIPLE COMPOSITE WEB SERVICES DRIVEN BY QOS},
booktitle={Proceedings of the 1st International Conference on Cloud Computing and Services Science - Volume 1: MAS, (CLOSER 2011)},
year={2011},
pages={675-684},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003555306750684},
isbn={978-989-8425-52-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 1st International Conference on Cloud Computing and Services Science - Volume 1: MAS, (CLOSER 2011)
TI - A MULTI-AGENT SELECTION OF MULTIPLE COMPOSITE WEB SERVICES DRIVEN BY QOS
SN - 978-989-8425-52-2
AU - Siala F.
AU - Ghédira K.
PY - 2011
SP - 675
EP - 684
DO - 10.5220/0003555306750684