The Design and Realization of XML Database Middleware Based on SaaS

SaaS software service pattern transfers discrete software purchase model into software rental model. The user can customize database according to their characteristics and needs flexible. The development of middleware gives light on the match among the heterogeneous software architectures. It can availably wrap to different database system's methods and interfaces, provide some public interfaces for its client to visit the distributed databases in the heterogeneous platform. This thesis takes the design and implementation of the Intelligent Bill management platform based on SaaS software service pattern as subject of study, proposing a solution of XML database middleware based on SaaS. The system consists of an administration tool and a database middleware server process.