The main objective of the DOSoReMI.hu (digital, Optimized, Soil Related Maps and Information in Hungary) projects is to significantly extend the potential, how demands on spatial soil related information could be satesfied in Hungary. Although a great amount of soil information is available due to farmer mappings and surveys, there are more and more frequently emerging disrepancies between the available and the expected data. The gaps are planned to be filled with optimized DSM products heavily based on legacy soil data, which still represent a valuable treasure of soil information at the present time. Our paper presents the first pilot results achieved for Zala County, Hungary : the identified effects of DSM components on the accuracy of a specific output map; together with some modest proposals for their applicability in the optimization of the whole mapping process
