In group decision-making, the use of Group Decision Support Systems is
increasing and in some groups, a facilitator is required to improve
communication among participants. The facilitator has several roles in
this situation, which include helping decision makers (DMs) to decide
which type of aggregation they would prefer in each decision context.
Whenever DMs have different objectives regarding the same problem, they
might decide a consensual decision is no longer possible. Therefore,
other types of aggregation are required. Voting rules are strongly
applied in this type of situation. However, the question that arises is:
who should decide the voting method? In this article, a framework for
choice of a voting procedure in a business decision context is used. It
takes the facilitator’s preferences into account while it seeks to
choose which voting procedure best suits the environment of the Group
Decision Support System GRoUp Support (GRUS).