Les problématiques de l'aide à la décision : vers l'enrichissement de la trilogie choix-tri-rangement

In this article we establish a classification and we discuss the different problematiques that may be in question in a certain stage of a decision-aid study. We enlarge the trilogy choice, sorting and ranking, introduced by Bernard Roy, reinforcing the importance of this subject in the methodological context of decision-aid. First, we distinguish decisional problematique from technical or decision-aiding problematique. Afterwards, we reflect on three questions: Do we want a relative comparison or an absolute evaluation of the actions?, to make a choice or to rank the actions?, to accept or to reject actions?

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