By producing matrix , T i i D R − and i i D R + are calculated; where i Dand i R aresum of the rows and sum of the columns of T respectively. To finalise the process, allcalculated Di − Ri and Di + Ri should be defuzified through an appropriatedefuzification method. Then, there would be two sets of numbers: ( )defDi + Ri indicatinghow important the criteria are, and ( )defDi − Ri showing which criteria is cause andwhich one is effect. Generally, if the value ( )defDi − Ri is positive, the criteria belong tothe cause (driving) group, and if the value ( )defDi − Ri is negative, the criteria belong tothe effect (dependent) group.