Using FITradeoff for Supporting a Decision Process of a Multicriteria Decision Problem

Abstract

In the scope of MAVT (Multi-Attribute Value Theory), one of the most difficult tasks is the elicitation of criteria scaling constants of an additive model for the aggregation of criteria. That might be the reason why there are so many MCDM/A (Multi-Criteria Decision Making/Aiding) methods, among which is the FITradeoff (Flexible and Interactive Tradeoff) method, which has been developed precisely to meet this challenge. One of its advantages is that it uses partial information about the preferences of a Decision Maker (DM). This requires less effort from the DM, since this method makes comparisons of consequences (or outcomes) based on strict preference rather than on indifference, which is what the traditional tradeoff procedure does. Two case studies are presented using the FITradeoff method: a supplier selection problem and a facility location problem. Using a Decision Support System of FITradeoff for the decision process, the flexibility of this process is analyzed, in order to determine the best one in a specified set of alternatives, or even to rank them.