The Research Of Hospital Management System Based On Heterogeneous Database Integration

The information system of every department in hospital often adopt different technology and framework to work in the period of hospital construction, such as Out-patient clinic system, Clinical information system, Ward administration system, Medical image administration system, Leader administration system and so on. Most of the systems are individual, so patients would go many places for curing. We are considering for designing a hospital information administration system to link every individual system, so as to acquire dynamic data from database. It's convenient for hospital to increase the efficiency and share resource.Heterogeneous Database Integration ( HDI ) is the major problem of our project. We would to establish an operation platform based on Heterogeneous Database at first, the users can operate the platform to visit many Heterogeneous Databases and share information at the same time. Every database of information system is individual and independent in medical net system, the project provide B/S model service to users, so as to guarantee the data sharing safty.The system consists of three structure including Application Layer, Management Layer and Data Layer. The Management Layer is the core of system, it help users to share data, inquesting and operation. The focus of my article introduce the flow of data query and the technology of Mediator,Wrapper,Metadata in management Layer. Query processing is the key technology of information integration system, we discussed the problem of optimizing query processing.In this article, we designed a framework of hospital management system based on HDI and we gave the details of design proposal. This project adopt the XML technology and Mediator idea to solve the problem of data transition and query processing in different models.