The quantitative tool for decision support: As both a game and a stake

The multiplicity of uses that are made of a quantitative tool during a collective choice process involving several participants of an organization in the quasi-public sector, is examined. A metaphor of the game is proposed for purposes of this study. Results of the study show that the use of the quantitative tool extends beyond the role that one traditionally attributes it, that being to clarify a choice. For the various participants, the quantitative tool is an instrument that simultaneously enables and constrains. It is both the rule of the game and the stake. The consequences for both developers and users of quantitative tools, most notably as regards their training, are presented and discussed.