| 一种支持模糊QoS属性的服务组合容错方法 |
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| 引用本文： | 虞才珠,刘云祥,陆维. 一种支持模糊QoS属性的服务组合容错方法[J]. 微型电脑应用, 2012, 28(8): 61-64 |
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| 作者姓名： | 虞才珠 刘云祥 陆维 |
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| 作者单位： | 上海应用技术学院,上海,200235 |
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| 基金项目： | 国家自然科学基金项目(60873116,61070223) |
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| 摘 要： | 提出了一种支持模糊QoS属性的服务组合容错方法，运用区间数的方式来描述那些带布模糊性的QoS需求，针对服务组合的特点，构建了服务组合容错框架，通过对服务组合运行时的QoS历史数据和实测值进行偏差度量，重点讨论了在组件服务QoS失效和组合服务QoS失效这两种情况下的容错处理策略。实验结果证明了该方法的有效性。
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| 关 键 词： | Web服务组合 QoS 容错 模糊 |
A Fault-tolerant Method for Web Service Composition with Fuzzy QoS Attributes |
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| Yu Caizhu , Liu Yunxiang , Lu Wei. A Fault-tolerant Method for Web Service Composition with Fuzzy QoS Attributes[J]. Microcomputer Applications, 2012, 28(8): 61-64 |
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| Authors: | Yu Caizhu Liu Yunxiang Lu Wei |
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| Affiliation: | (Shanghai Institute of Technology,Shanghai 200235,China) |
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| Abstract: | This paper proposes a fault-tolerant method for service composition with fuzzy QoS attributes.It uses the means of inter-val data to describe those QoS requirements with fuzziness.According to the characteristics of service composition,this paper con-structs the fault-tolerant management framework of service composition,and calculates the deviations between service run-time’s QoS value and history QoS value.Special attentions are paid to address fault-tolerant policies in the case of QoS invalidation for both component service and composite service.The experimental results verify the efficiency of the method. |
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| Keywords: | Web Service Composition QoS Fault-tolerance Fuzzy |
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