Dynamic Composite Web Services Based on QoS Context

Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (1): 106-111.

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Dynamic Composite Web Services Based on QoS Context

Xu Xin-wei Ding Qiu-lin

Computer Application Institute , Nanjing Univ. of Aeronautics and Astronautics , Nanjing 210016 , Jiangsu , China

Received:2006-04-20 Online:2007-01-25 Published:2007-01-25
Contact: 徐新卫(1971-)，男，博士生，讲师，主要从事信息系统集成和Web智能技术方面的研究。 E-mail:xuxw2004@nuaa.edu.cn
About author:徐新卫(1971-)，男，博士生，讲师，主要从事信息系统集成和Web智能技术方面的研究。
Supported by:
国家"863" 计划项目(2002AA4 11030) ;国防基础预研项目(S0500A001 )

Abstract

Abstract:

As the context of Quality of Service (QoS) is of different functions in service composing procedure , the models of QoS context are used to dynamically compose the services. According to the QoS feedback criteria and the QoS requirements of the user , the candidate services are dynamically selected , composed and implemented under the effect of various environment QoS by using genetic algorithm as the controller of the QoS feedback criteria to en-sure the determination of QoS targets. Experimental and simulated results show that , by the service composition based on QoS context , the Web services are of dynamic and self-adaptive features to meet the needs of the customer.

Key words: Web service, service composition, Quality of Service, genetic algorithm

Xu Xin-wei Ding Qiu-lin. Dynamic Composite Web Services Based on QoS Context[J]. Journal of South China University of Technology (Natural Science Edition), 2007, 35(1): 106-111.

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Dynamic Composite Web Services Based on QoS Context

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