Resumen
Official spatial base data, as provided by the national surveying agencies, offer a high-quality basis for cross-border activities such as spatial planning, infrastructure development, flood risk management and environmental protection. However, these data cover only the related national territory since their provision is a sovereign task. Furthermore, they often feature different geographic projections, data formats and data models, geometry (e.g. of the national boundary and trans-boundary objects), languages and semantic meanings of the content. Thus, the objective of the study presented here is to develop methods which will allow the surveying agencies to adapt their data to be seamlessly compatible along the national boundary (geometric homogenisation) and comparable in regard to content (semantic harmonisation). The interoperability of the cross-border data is meant to be achieved in an exemplarily manner by using the vector data of the German ATKIS Basis-DLM (Authoritative Topographic Cartographic Information System, Digital Basis Landscape Model) and the Czech ZABAGED data (Fundamental Base of Geographic Data/Základní báze geografických dat).