Actual and reliable Spatial Information is indispensable for planning and decision making processes in the context of sustainable development and poverty reduction in developing countries. The implementation process of National Spatial Data Infrastructure (NSDI) has been initiated in many countries. This very complex process is not only a technical but also a political and organisational challenge. All involved governmental agencies and organisations are traditionally used to acquire and maintain spatial data independently and often in parallel. Communication and interdisciplinary cooperation between agencies will play an important role and institutional restructuring will be necessary. Consequently the establishment of an NSDI in developing countries will be a long term process over years. 

On the other hand nationwide Spatial Base Data are urgently needed in state organisations, municipalities and others. These data consist of basic reference information, e.g. high resolution spatial imagery, large scale topographic and cadastral information as well. Herewith the relevant institutions can develop thematic spatial data sets for their own special fields. Generally, the responsibility for the acquisition, provision and maintenance of Spatial Base Data are in the hand of Geodetic Authorities or other mapping agencies.

This paper will show conditions and possible stepwise and iterative approaches in order to accelerate the acquirement and in-time dissemination of reliable Spatial Base Data.