AHP Is Intended for More Than Expected Value Calculations

In a previous paper, Schoner and Wedley [9] presented a way to automatically compute the importance of criteria from the values of alternatives. The following discussion illustrates that the approach of [9] can only be applied if the alternatives under the criteria are measured with a single absolute scale. However, when this does occur, in part or in all of a decision problem, the approach is extraneous. The measurements can (and should) first be combined with the appropriate arithmetic of that scale which reduces that part of the problem to a single dimension and the result can be taken up with the remaining dimensions for consideration with AHP.