摘要
调用Web服务实现业务流程,是业务流程的新趋势。由于业务流程的松耦合性,以及Web服务的异质性和自治性,执行Web服务驱动的业务流程时,异常是经常发生的。为了提高业务流程执行的可靠性,定义了业务流程执行中的异常类型和相应的处理方法。采用一种基于ECA规则驱动的异常处理方法,能对发生的异常选择相应的策略进行处理,具有很好的透明性和可扩展性。最后在现有流程引擎的基础上,添加了部分功能模块,设计并实现了业务流程异常处理的原型系统。
It is the new trend to implement business processes with Web service. As the loosely coupled attrib- ute of business processes and the heterogeneity and autonomy attributes of Web services, the exceptions are fre- quently occurring when the Web service driven business process is executed. In order to improve the reliability of business process execution, the exception types of the business process execution and the corresponding handle methods are defined. An ECA rules driven exception handling method is used to select the appropriate strategy for exception handling, which has good transparency and scalability. Finally, on the basis of the existing workflow en- gine, some functional modules, designed and implemented a prototype system of business processes exception handling are added.
出处
《科学技术与工程》
北大核心
2012年第10期2333-2337,共5页
Science Technology and Engineering
基金
国家“863”计划基金资助项目(2009AA01Z142)资助
