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QCWS: an implementation of QoS-capable multimedia web services

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Abstract

QoS (Quality of Service), which defines service quality such as latency, availability, timeliness and reliability, is important for web applications that provide real-time information, multimedia content, or time-critical services. Many web applications are best implemented by servers with a guaranteed server processing capacity. In this research, we study the QoS control issues using the current Web services standards. We propose a QoS-capable Web service architecture, QCWS, by deploying a QoS broker between Web service clients and providers. The functions of the QoS broker module include tracking QoS information about servers, making selection decisions for clients, and negotiating with servers to get QoS agreements. We have implemented a QCWS prototype using IBM WSDK, enhanced with simple QoS capabilities. We have measured the performance running under different service priorities.

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Authors and Affiliations

  1. Department of Electrical Engineering and Computer Science, University of California, Irvine, Irvine, CA, 92697, USA

    Tao Yu & Kwei-Jay Lin

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  1. Tao Yu
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  2. Kwei-Jay Lin
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Correspondence to Kwei-Jay Lin.

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Yu, T., Lin, KJ. QCWS: an implementation of QoS-capable multimedia web services. Multimed Tools Appl 30, 165–187 (2006). https://doi.org/10.1007/s11042-006-0020-8

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  • DOI: https://doi.org/10.1007/s11042-006-0020-8

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