Section 3 presents concepts related to MCDA, respective background and potential in the cardinal measurement of trade-offs among evaluation criteria.
Following a constructivist approach, the procedure also tests the consistency of the answers, offers suggestions to bypass inconsistent situations and provides the analysis for aiding the decision maker to enter the domain of cardinal measurement (for a general overview and some practical applications, see Bana e Costa, Vansnick 1994, 1997, 1999; Bana e Costa et al.