“…The element that would be separated from the group last if the set number of clusters was enlarged was always chosen. The competences were grouped into the following six clusters: Basic (1,2,4,7,8,9,13,17,18,19,20,21,22,23,24,25,27); Advanced (10,11,12); Personal information management ( 14); E-forms (26); Operating system administration (3,6,15,16); Operating system control (5).…”