1. Method for determining deviations between coordinate systems of different technical systems, comprising determination of a coordinate position of a reference feature ( 32 ) of a test object ( 26 ) in the coordinate system (u,v) of a first ( 24 ) of the technical systems, attachment of at least one test feature ( 34 ) to the test object, with the test feature being attached in the coordinate system (x,y) of a second ( 18 , 22 ) of the technical systems at a coordinate position that is determined in dependence on the determined coordinate position of the reference feature, determination of a coordinate position of the at least one test feature and/or at least one feature ( 36 ) derived from it in the coordinate system (u,v) of the first technical system determination of deviations between the coordinate systems of the first and second technical system, at least on the basis of: (a) the determined coordinate position of the at least one test feature and/or of the at least one feature derived from it in the coordinate system (u,v) of the first technical system and (b) the coordinate position of the reference feature in the coordinate system (u,v) of the first technical system.