一种基于SOA的单机遗留系统再工程过程模型

摘要

单机遗留系统存在着灵活性差、不易维护、信息孤岛等问题,由于重新开发系统成本高,风险大,亟待一种新的方案来代替.针对这种问题,提出了一种将单机遗留系统改造为基于SOA的系统的再工程过程模型.该模型以传统软件再工程过程为基础,融人SSH框架,将单机系统改造为基于SOA的Web系统,使其更加开放、灵活.最后将该模型应用于一个实际单机遗留应用系统的再工程改造过程,证明该模型能够有效的消除信息孤岛、数据不同步等现象,实现跨平台交互,同时尽可能避免了大的修改,降低了风险.%Single-machine systems have difficulties in flexibility,maintenance and information sharing. Because of the high costs and high risks to implement a totally new system, it is urgent to develop an alternative solution. Therefore, this paper presents a re-engineering process model for single-machine legacy systems based on SOA architecture. This process model combines traditional re-engineering model and SSH framework, transforms single-machine legacy systems into Web systems. A case study is given to illustrate the feasibility and effect of the proposed process model. The result shows that the proposed model can be effectively to avoid isolated islands of information, improve inter-platform interaction and reduce the costs and risks of re-development.