An Example of Comparison of Two Decision-Aid Models

Let us consider a situation where a decision is necessary and where several criteria are involved. The analyst who has to help an actor in such a decision process by using as rigorous a method as possible, generally has the choice between several approaches, which involve several ways of viewing the real world and can lead to significantly different models. The objective of the present study is to compare two of these models that are frequently used, and thus to shed light on two different currents of thought that have been developing on either side of the Atlantic.