Design of the Qinghai-Tibetan Railway Information System

The creation of the Qinghai-Tibetan Railway Information System not only can directly serve the Qinghai-Tibetan Railway project construction, but also can play an important role to the environment protection around the railway and to the railway carrying and managing after it is set up. The database of the Qinghai-Tibetan Railway Information System has a great deal of data account. Its data items are multitudinous. It also serves the engineering construction directly. The innovation points of this paper mainly embody the application of the following newest technologies. The first is the application of practical GIS conception to design the database. The second is the application of the data warehouse conception and technologies in database integration. The third is the application of the object\|oriented technologies. The fourth is using metadata to effectively manage and fast query the data resources. The database design includes data item design, data conception design, data particular design, and data integration design.