The interactivity between the criteria in MCDM problem

The purpose of this study is to provide new methods for the problem with criteria interactivity in MCDM problem. Considering that the assessment criteria in MCDM may have effects on each other, so there are the necessary methods that take into account these interactions. This research In addition to identification, study, and Classify the different interaction that may the criteria have, introduces two new ways in this context. The new method presented in this paper is to solve the problems with the interactions between the criteria. The interaction between the criteria to be considered as a set of interactive effects between the criteria. The paper also offered two new ways to solve such problems. The proposed method approach is the effect of the interactions on the decision matrix.