| 基于价格进程代数的Web服务组合描述和成本分析 |
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| 引用本文： | 肖芳雄,黄志球,曹子宁,袁敏,张君华.基于价格进程代数的Web服务组合描述和成本分析[J].计算机研究与发展,2009,46(5). |
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| 作者姓名： | 肖芳雄 黄志球 曹子宁 袁敏 张君华 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,南京,210016 |
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| 摘 要： | 进程代数可有效地用于Web服务组合的描述和验证,然而缺乏对服务组合成本建模和分析的能力.提出一种扩展了价格信息的进程代数PPA, 在CCS基础上为进程动作和状态扩展价格函数, 给进程动作的执行标记价格,给进程的迁移状态标记成本.给出了PPA的语法和语义,定义了PPA成本弱互模拟并分析了其与CCS弱互模拟的关系,证明了PPA在CCS基础上扩展了成本建模能力,给出了成本状态空间构造算法,该算法支持选择成本优化的组合服务.实验分析了PPA用于Web服务组合成本建模和分析的可行性.
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| 关 键 词： | 服务组合 进程代数 价格 成本 |
Describing and Cost Analyzing of Web Services Composition Using PPA |
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| Xiao Fangxiong,Huang Zhiqiu,Cao Zining,Yuan Min,Zhang Junhua.Describing and Cost Analyzing of Web Services Composition Using PPA[J].Journal of Computer Research and Development,2009,46(5). |
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| Authors: | Xiao Fangxiong Huang Zhiqiu Cao Zining Yuan Min Zhang Junhua |
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| Affiliation: | College of Information Science and Technology;Nanjing University of Aeronautics and Astronautics;Nanjing 210016 |
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| Abstract: | Process algebra includes a series of formal languages that are suitable to describe concurrent and communication systems including Web services.Nowadays,although process algebra has been effectively exploited for modeling and verification of Web service composition,only functional aspects of Web service composition have been addressed,and non-functional aspects have been ignored due to the fact that process algebra lacks for capability of modeling them.Since quality of service(QoS) of Web services compositi... |
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| Keywords: | Web |
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