Finally, we would like to point out one more methodological solution. Starting from previous approaches and criterion classification for information system functionality performances evaluation, a group of domestic authors have suggested their own method and classification, presented in table 1 (Balaban, Ristić, Đurković, Trninić, & Tumbas, 2006, p. 469). This method maneuvers with 22 criteria (traits) of the information system which are measured with a five-degree numeric scale of Likert type.