Updating of a Geographic Database: an Application and Design of a Geographic Information System

The creation of a GIS database can cost more than the GIS hardware and software itself. Although it takes several years to create, the information used in the databases of GIS represents the status of the world instantly. GIS databases must appropriately be organized and constantly be updated to make better use. In this study, methods were investigated with regard to updating of GIS databases to be utilized currently at various applications for a great number of disciplines. Different methods were determined for updating either spatial or non-spatial component of data in geographic databases. As a result, a user-friendly software environment was developed which is also able to use raster data as source, in order to update simultaneously spatial and non-spatial components of data in databases, to store time information with regard to updating, to provide the update of data model and to change its environment automatically according to data model.