QCWS: an implementation of QoS-capable multimedia web services

被引：0
|
作者：
Tao Yu
Kwei-Jay Lin
机构：
[1] University of California,Department of Electrical Engineering and Computer Science
[2] Irvine,undefined
来源：
Multimedia Tools and Applications | 2006年 / 30卷
关键词：
QoS; Web service; Broker; QCWS; Priority;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
引用
收藏
页码：165 / 187
页数：22
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