【作者】 付晓东； 邹平；

【Author】 Fu Xiaodong1,2,Zou Ping21.Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650051,P.R.China2.Faculty of Management and Economics,Kunming University of Science and Technology,Kunming 650093,P.R.China

【机构】 昆明理工大学信息工程与自动化学院； 昆明理工大学管理与经济学院；

【摘要】 为实现例外处理的模块化,可扩展性以及适应性,提出一种基于元流程的Web服务组合例外处理模型,并对该模型的元素及其关系的语义进行了详细说明。模型中的规则基于事件,状态以及基础流程案例数据。当例外事件发生时,若有规则被满足,则相应的元流程启动,并由元流程对基础流程进行协调和控制。实例分析表明该方法不仅支持错误恢复,同时也支持流程修改等复杂状况。更多还原

【Abstract】 For modular,extensible and adaptable exception handling of web service composition,a model using meta-process is proposed in this paper.The detail semantic of the model components and their relationship are specified too.The rule in the model is based on event,activity state and case data of base process.When an exceptional event occurs,corresponding meta-process is invoked as controlling and coordinating mechanism for base processes if some rules are met.Examples analy-sis show that the proposed model not only can be used for failure recovery,but also can be used for more complex situation such as process modification.更多还原