determined preferences by comparing “one to one” (all alternatives in pairs), per each established criteria, the results
generate the matrix of impact.
Based on the matrix of impact, the next step is to rank each alternative based on the categories established in the
“relations of overrating”, then for each alternative identifying alternatives that are lower in hierarchy.
Finally, the ascending and descending orders are realized with "distillation" and result in two hierarchies, that may
be different from each other; in this case are compared and a third result in which can be completely linear or
parallel branches. This final ranking is the result of the method (Schleske , E , 2001)
4.3. Definition of evaluation criteria and measurement metrics