The base map shall play a major role. The DTM is necessary for modelling phenomena functioning as terrain relief, and permits three-dimensional presentation. The vector register is recognised as primary, and the raster as secondary. Only analysis based upon line items will use the vector register. The basic operation for transferring physical map contents into the virtual environment will be screen vectoring preceded by scanning or table digitalisation.
Thematic layers creating individual maps are, in principle, without text.
It will always be possible to connect them with other layers and, therefore, locate the phenomena. Also, geographic names and other descriptions will be inserted in attribute tables. The computer atlas may be used on a PC with MGE-PC and Vista Map for Windows. The users of other GIS tools will have to convert the KVCA database. Conversion to MapInfo is supplied.