Integrated approach to two kind of preference information in group decision making

An integrated approach was proposed for two kinds of representation on preference information, the Analytic Hierarchy Process judgement matrices and Fuzzy judgement matrices, provided by decision makers in group decision making or group decision support systems. The Analytic Hierarchy Process judgement matrix was transformed into the representation of fuzzy judgement matrix by constructing a transformation function. The proposed approach lays a solid foundation for integrating two kinds of representation on preference information and extends the works of Chiclana, Herrera and Herrera-Viedma. Finally, an example was used to illustrate the proposed approach.