An Interactive Group Decision Support Procedure Considering Preference Strength

Abstract

This paper presents an interactive decision procedure to aggregate each group member's preference when each group member articulates his or her preference information maker to articulate preference information about alternatives. We develop a mathematical programming model that can establish dominance relations when the preference information about values of alternatives, attribute weights, and group member's importance weights are provided incompletely. Also, the preference relation between alternatives is to be considered in the model. Based on the preference strength measure and mathematical model, we develop an interactive group decision support procedure.