A multicriteria decision aid methodology to deal with conflicting situations on the weights

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This paper proposes a decision aid methodology to deal with discrete multicriteria situations in which the objective of the decision maker is to select the action generating the least conflict between several actors. These actors express different (conflicting) levels of acceptance for the relative importance of the evaluation criteria (weights), which the decision maker wants to take into account. Basically, the methodology proposes an Overall Compromise Criterion, which ‘corrects’ the average sum aggregation of the performances by an Acceptability Index combining all the actors' individual preferences. A computer program embodying the methodology, in the three criteria problem, has been applied to an illustrative case study in the field of Municipal Management.