A presentation on a display screen of objects of a user interface which can be freely positioned and scaled by means of control elements is optimized. This is realized by a predetermined calculation rule in such a manner that the objects can be automatically varied between a still readable minimum size and a selected maximum size in dependence on the object contents, selected preferred settings and the available display resource on the display screen, and that the available display screen surface is optimally filled, possibly while eliminating less important details of the object contents and while changing the display mode of the object contents and/or the object as well as while avoiding mutual overlapping of the objects.