Decision aiding: An Operational Research domain discipline?

In this paper we present succinctly the Multicriteria Decision Aiding approach. The aim of this paper is to present the bases that allow us to justify the needs for a robustness analysis in the algorithms when these procedures are used ‘to find the solution’ of a real-life application, taking into account the decision maker's preferences. We concentrate on the facts that uncertainties in data are often present, modeling activity is determined in some way by the analyst, the model cannot have all the dimensions and/or constraints of the real-life application and that the set of feasible solutions can change during the decision process.