One possible final goal of defining a set of criteria to define modeling approaches [1] is to help people, especially from industry, picking up the good approaches or artifacts according to their own purpose. The authors of the comparison criteria have managed to get several different assessments made by defenders of particular modeling approaches. From our point of view the experiment is mature enough to support a factorial analysis of the criteria themselves. The goal of this paper is to present how such an analysis could be conducted and illustrate its usefulness. We have identified several key modeling concepts but we only focus in this document on the assessment of modeling approaches.