4.2. The algorithm ELECTRE IVThe EL

4.2. The algorithm ELECTRE IV
The ELECTRE IV method seeks to order the alternatives from best to worst (or less good) without introducing
weights on the criteria, mainly based on the preferences of the decision maker and the structuring of “relations of
overrating”.
With regard to the preferences of the decision maker, they are classified into three main categories, strict, weak or
indifferent, for which we establish a set of two values