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Issue:
User-oriented Web services reliability computing model
Author(s):
Su Zhiyong
,
Zhou Ying
,
Li Bixin
Pages:
605
-
610
Year:
2008
Issue:
4
Journal:
JOURNAL OF SOUTHEAST UNIVERSITY(NATURAL SCIENCE EDITION)
Keyword:
面向用户
;
可靠性
;
结构属性
;
Abstract:
基于SOA,从用户的角度分析并计算Web服务及其应用的可靠性.首先采用一种扩展的UDDI模型收集可靠性相关数据,计算基本服务的可靠性、转移失效率和转移概率.然后基于BPEL文档构造组合服务的结构图,定义其结构属性,将转移失效率作为基本服务可靠性的加权系数,给出各种结构的组合服务的可靠性计算公式.最后在此基础上设计可靠性预测的递归算法用于计算Web应用的可靠性.实验结果表明:基于结构图的方法具有简便性和易处理性.
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