CAJ | 학술논문

针对集中式Web服务组合的性能缺陷以及完全分布式Web服务组合中组件服务重用性差等问题,提出一种基于集中控制流分散数据流模式的Web服务组合协调框架. 描述了框架中运行的协调协议的形式化定义、模型和语法结构. 采用数据流分析方法优化组合服务.提出从BPEL到协调协议的转换算法. 实验结果表明,采用此协调框架的组合服务不仅保持了组件服务的可重用性,而且在响应时间和事务处理能力等方面性能有显著提高.
침대집중식Web복무조합적성능결함이급완전분포식Web복무조합중조건복무중용성차등문제,제출일충기우집중공제류분산수거류모식적Web복무조합협조광가. 묘술료광가중운행적협조협의적형식화정의、모형화어법결구. 채용수거류분석방법우화조합복무.제출종BPEL도협조협의적전환산법. 실험결과표명,채용차협조광가적조합복무불부보지료조건복무적가중용성,이차재향응시간화사무처리능력등방면성능유현저제고.
Current Web service composition models encounter performance or reusability problems. A Web service coordination framework is presented to support the data flow distribution. The formal definition, meta-model and the schema of the coordination protocol were presented. A mechanism to optimize and transfer the BPEL process into the coordination protocol was proposed to leverage the legacy composite services which are described by BPEL. The experiment results showed that the composite service deployed in the coordination framework achieved better performance than the BPEL based composite service.