The aim of the PREZEM project (2B06124) (2006-2011 was to find a new technological solution that enabled the transfer of decision processes in precision farming directly into the field. The system provided access to knowledge and information updates anytime, anywhere. It was based on a combination of modern principles of distributed geospatial information management, mobile cartographic visualization, mobile geospatial management, and location of GNSS-based information in relation to precision farming