Quality-of-Service Based Web Service Composition and Execution Framework

Authors:
Asim El Sheikh;Alia Sabri;Bassam Al Shargabi;Osama Al-haj Hassan
Affiliations:
Arab Academy for Banking and Financial Sciences, Jordan;Applied Science University, Jordan;Al-Isra University, Jordan;Al-Isra University, Jordan
Venue:
International Journal of Information Technology and Web Engineering
Year:
2011

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Abstract

Software is gradually becoming more built by composing web services to support enterprise applications integration; thus, making the process of composing web services a significant topic. The Quality of Service QoS in web service composition plays a crucial role. As such, it is important to guarantee, monitor, and enforce QoS and ability to handle failures during execution. Therefore, an urgent need exists for a dynamic Web Service Composition and Execution WSCE framework based on QoS constraints. A WSCE broker is designed to maintain the following function: intelligent web service selection decisions based on local QoS for individual web service or global QoS based selection for composed web services, execution tracking, and adaptation. A QoS certifier controlled by the UDDI registry is proposed to verify the claimed QoS attributes. The authors evaluate the composition plan along with performance time analysis.