[综述阅读] A Survey of Automated Web Service Compositon Methods
2009-08-15 11:00
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1.Web服务组合的复杂性源自几个原因:
1)可选Web服务的数量急剧增加,需从海量服务库中搜索;
2)Web服务随信息的变化而动态更新;
3)不同组织使用不同的概念描述Web服务,需用一个统一的方法来定义和评估Web服务。
2.自动化的含义:
1)自动产生process model;
2)给出一个abstract process model,可以得到合适的服务。
3.Web Services Composition 框架 (包含6个阶段)
service presentation, translation, process generation, evaluation & execution.
4. Web服务组合的自动化集中在procession generation (本文核心内容)
1)使用Workflow:
l E-flow: 组合服务由graph进行建模,graph定义了process中结点的执行顺序;
l PPM: 一个服务由state machine进行建模。
2) 使用AI Planning:
l Situation Calculus
l PDDL
l Rule-based Planning
l Other AI planning methods
l Theorem Proving
1)可选Web服务的数量急剧增加,需从海量服务库中搜索;
2)Web服务随信息的变化而动态更新;
3)不同组织使用不同的概念描述Web服务,需用一个统一的方法来定义和评估Web服务。
2.自动化的含义:
1)自动产生process model;
2)给出一个abstract process model,可以得到合适的服务。
3.Web Services Composition 框架 (包含6个阶段)
service presentation, translation, process generation, evaluation & execution.
4. Web服务组合的自动化集中在procession generation (本文核心内容)
1)使用Workflow:
l E-flow: 组合服务由graph进行建模,graph定义了process中结点的执行顺序;
l PPM: 一个服务由state machine进行建模。
2) 使用AI Planning:
l Situation Calculus
l PDDL
l Rule-based Planning
l Other AI planning methods
l Theorem Proving
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