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| 虚拟计算环境中服务行为与质量的一致性 |
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胡昊1,2, 殷琴1,2, 吕建1,2
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1.计算机软件新技术国家重点实验室(南京大学),江苏,南京,210093;2.南京大学,计算机软件研究所,江苏,南京,210093
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| 摘要: |
| 提出了一种用Petri net对服务行为和服务质量进行统一建模的框架.基于该框架所提出的统一的服务行为和服务质量的一致性规则可以在服务的查找和替换中综合判断服务行为和服务质量的一致性.自行开发的SOBECA(service-oriented, behavior and capability support architecture)中间件系统在现有的Web服务标准上增加了服务行为和服务质量的描述,可以更好地自动化支持服务行为和服务质量的一致性检查,同时也验证了上述框架的合理性. |
| 关键词: 服务构件模型 服务行为模型 行为继承 服务质量 Petri网 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60403014, 60603034 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant Nos.2006AA01Z159, 2006AA01Z177, 2007AA01Z140, 2007AA01Z178 (国家高技术研究发展计划(863)); the National Basic Research Program of China under Grant No.2002CB312002 (国家重点基础研究发展计划(973)); the Natural Science Foundation of Jiangsu Province of China under Grant No.BK2006712 (江苏省自然科学基金) |
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| Service Behavior and Quality Consistency in Virtualized Computing Environment |
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HU Hao,YIN Qin,Lü Jian
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| Abstract: |
| A unified framework based on Petri-net for the modeling of service behavior and QoS is proposed. Based on this framework a set of service consistency rules are derived to improve the accuracy of service discovery and to ensure the system consistency in service substitution. A middleware named SOBECA (service-oriented, behavior and capability support architecture) compatible with current Web services standards is developed to make a proof of concept of the framework. In SOBECA the service description is extended with behavior and quality attributes which can be automatically checked against current requirements. |
| Key words: service-oriented component model service behavior model behavior inheritance QoS Petri net |
