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A Service-Oriented Composition Framework with QoS Management

A Service-Oriented Composition Framework with QoS Management

Casey K. Fung, Patrick C.K. Hung, Richard C. Linger, Guijun Wang, Gwendolyn H. Walton
Copyright: © 2006 |Volume: 3 |Issue: 3 |Pages: 25
ISSN: 1545-7362|EISSN: 1546-5004|ISSN: 1545-7362|EISBN13: 9781615204564|EISSN: 1546-5004|DOI: 10.4018/jwsr.2006070105
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MLA

Fung, Casey K., et al. "A Service-Oriented Composition Framework with QoS Management." IJWSR vol.3, no.3 2006: pp.108-132. http://doi.org/10.4018/jwsr.2006070105

APA

Fung, C. K., Hung, P. C., Linger, R. C., Wang, G., & Walton, G. H. (2006). A Service-Oriented Composition Framework with QoS Management. International Journal of Web Services Research (IJWSR), 3(3), 108-132. http://doi.org/10.4018/jwsr.2006070105

Chicago

Fung, Casey K., et al. "A Service-Oriented Composition Framework with QoS Management," International Journal of Web Services Research (IJWSR) 3, no.3: 108-132. http://doi.org/10.4018/jwsr.2006070105

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Abstract

Quality of Services (QoS) management in compositions of services requires careful consideration of QoS characteristics of the services and effective QoS management in their execution. This paper describes an approach to implementation of QoS management in compositions of Web services in the context of Computational Quality Attributes and Service Level Agreements. Building on prior research work of others in the use of Message Detail Records, this paper integrates the results from several research threads to propose a QoS Management Architecture to support dynamic processing of service- and flow level quality attributes to support QoS requests and analyses in Web-service-oriented architectures. The study of QoS management in a Web service composition framework was motivated by the evolution of the composition framework for a toolkit for integration and experimentation of distributed system applications. A message tracking model is proposed for supporting QoS end-to-end management by applying the Computational Quality Attribute (CQA) concepts of Flow-Service-Quality engineering. Quality attributes are defined, computed and acted upon as dynamic characteristics of systems, with values constantly changing in operation. A CQA provision is illustrated, with a simple Web Services travel reservation example. The example is elaborated to illustrate QoS end-to-end management using the Simple Object Access Protocol (SOAP) message tracking model.

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