Author(s)

Harry T. Uitermark

Abstract

Traditionally, geographic maps are drawn on some material, e.g. paper, but in the last twenty five years maps have been digitised for storage and use in com- puterised information systems. These so called Geo-Information Systems (abbreviated as GIS) are now dominant in all kinds of geo-disciplines. Comput- erised maps from a certain region are much more easy to combine then paper maps. However there is still a problem: how do we combine maps from a cer- tain region with different themes in order to query these maps as a whole? This is called the map integration problem. Beside querying multiple map themes map integration is important in using updates from a certain map that are rele- vant to another map. This paper discusses our experiences in building a proto- type of a

Keywords