There are apparent spatial connections between the raw data and drawings of the reconnaissance survey

which may be useful to store

manage

query and deal with these data and drawings. For this reason

computer-technology-based survey information system should play a great role in not only the data acquisition

map drawing

but also in the data management of documents

multimedia

maps and other digital data

according to the inherent relation between them. This article gives illustration of the relations and sets up a practical model on the maps drawing

storing and management base on GIS (geographical information system) and RDB (relational database). The application examples in the Three Gorge reservoir are shown; and it is proved that the model can meet demands of both the operation survey entities and the management departments.