Une approche constructive de la décision multicritère A constructive approach to multicriteria decision making

and key words After a general introduction on multicriteria decision aid, we briefly present the two main approaches (outranking methods, multi-attribute utility). Then we focus on the multi-attribute utility framework, which we build in a new perspective, based on the MACBETH methodology and the notion of capacity. We show that the Choquet integral appears as a natural tool for aggregating criteria, and we study several types of capacities which are useful in practice (k-additive capacities, p-symmetric capacities). We end the paper by introducing bipolar models. Multicriteria decision aid, capacity, Choquet integral, bipolar scale.