The M-MACBETH software provides tools to facilitate:

• Complete model structuring
• Management of complex problems involving qualitative value scores and weights
• Interactive sensitivity and robustness analyses

MACBETH (Measuring Attractiveness by a Categorical Based Evaluation Technique) is an interactive approach that requires only qualitative judgements about differences to help a decision maker or a decision-advising group quantify the relative attractiveness of options. It employs an initial, interactive, questioning procedure that compares two elements at a time, requesting only a qualitative preference judgement.

As judgements are entered into the software, it automatically verifies their consistency. A numerical scale is generated that is entirely consistent with all the decision maker 's judgements. Through a similar process weights are generated for criteria.

the designers of MACBETH are:
Carlos Bana e Costa	Jean Marie De Corte	Jean-Claude Vansnick
Technical University of Lisbon and London School of Economics	University of Mons-Hainaut Belgium	University of Mons-Hainaut Belgium