基于替代和补偿的嵌套Web Service事务模型

Nested Model of Web Service Transactions Based on Alternative and Compensation

作为一种崭新的并行计算模式,Web Service以其平台独立性、松耦合及自治性等优势,在涉及复杂业务流程的事务性服务行业具有极大潜力和需求。考虑到Web Service环境的限制和特征,传统事务模型无法适应。从Web Service事务系统体系结构出发,分析Web Service的特点及Web Service事务性应用在开放的Web环境下的特性,提出了一个基于替代和补偿的嵌套Web Service事务模型,阐述了结合替代和补偿的Web Service事务结构和处理,给出了形式化描述。

As a new parallel computing model, Web Service, which has the advantages of platform independence, loose coupling and autonomy, has great potential and demand in service industry involved with complex business processes. Considering the limitations and characteristics of Web Service environment, traditional transaction model cannot be sui- te＆ This paper departed from the architecture of the Web service transaction systems, analyzed the characteristics of Web Service and Web Service transactional applications in an open Web environment,and finally proposed a nested mo-del of Web Service transaction combining alternative and compensation. We also illustrated the structure and processing of Web Service transaction combining with alternatives and compensation mechanism and presented a formal representa-tion of this model.