A Decision Support System for Improving the Inconsistency in AHP

This paper presents a DSS aimed at helping decision makers reduce and improve their inconsistency in eliciting judgements when using the analytic hierarchy process (AHP). The is designed for revising of pairwise comparison matrix row geometric mean (RGM) used as prioritisation procedure consistency index (GCI) measure. employed guarantees that both derived priority vector will be close to initial values. allows different degrees participation maker review/modification judgements: no (automatic mode); prior (semi-automatic ongoing (interactive mode). also includes options incorporate other requirements maker, such limiting modified values an interval or improving by modifying lowest number judgements, among others.