基于数据库中间件开发烤烟质量评价系统软件

Developing software of appraising quality of flue-cured tobacco based on database middleware

基于组件对象模型(COM)标准,设计并开发异构数据库联合使用的中间件,将局部数据库虚拟映射为统一的全局模式数据库,用户可对全局数据进行透明查询操作。中间件为用户提供标准调用接口和可视化配置窗口,在此中间件基础上开发应用软件——烤烟质量评价系统。

The middleware for combining query of heterogeneous database is designed and developed. This system offers a query interface which can combine some databases that is relating to the application software. On the base of the middleware, the application software system of appraising quality of flue-cured tobacco is developed.