Hierarchization in derivation - its effect on analysis of derivational system

The article is inspired by the work of Iwona Kapron-Charzynska 'Derywacja ujemna we wspólczesnym jezyku polskim. Rzeczowniki i przymiotniki', and presents hierarchization of derivational techniques and indicators, according to their importance in derivational process. The status of so called 'derywacja ujemna and wymienna' (derivational process in which a part of a base is removed) was raised and the status of 'derywacja alternacyjna i prozodyczna' (alternational and prosodic derivation) was downgraded; the process of unification of the bases in compound words was underlined - as a result the role of nonmorphological factors in description of word formation system is minimized, contrary to position presented in well know studies.