SOA is a kind of popular software architecture nowdays. It allows the systems to keep the characteristics of loose coupling by establishing the reconfigurable service system, and can greatly improve the development productivity as well as reduce development cycle, which has a far-reaching significance for business integration. There's still a lack of intensively used transaction processing model under the SOA enviroments. A kind of SOA based distributed transaction model is proposed with the help of WS-Transaction standards as well as the transaction models that have already been put forward. The goal is to make it meet with the requirements of the characteristics of the transaction flow under SOA. This model is also the prototype for a SOA based comopent. This comopent can support different transaction delivering protocols in a pluggable way, and can also make the different kinds of SOA based transaction processes realistic.%SOA是流行的软件技术架构,可使系统之间保持一种松散耦合的特性,SOA可以提高应用开发效率,缩短开发周期,对于企业整合有着深远的意义.通过研究WS-Transaction标准和已提出的分布式事务模型及英扩展模型,提出一种改进的符合SOA环境特点的事务模型.并以该模型为原型设计一个基于SOA架构的事务处理组件,其通过可插拔的方式集成不同的事务提交协议,并能实现在SOA下不同类型的事务处理.
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