... are based on DIN4000 characteristic attribute tables;

... are created with PARTdesigner.

... may also contain definitions of value ranges and also extensive Attribute algorithms (e.g. IF, THEN or ELSE conditions), besides pure variable values;

... may, under certain circumstances, contain far more variables than the user ultimately sees. Thus, for instance, columns of auxiliary variables may be hidden even though these dimensions are "fitted" geometrically.