Expert knowledge and computer-aided group decision making: Some pragmatic reflections

Based on a simple outranking method of multi-attribute decision making, called Dichotomy-Cut, developed in recent years and published elsewhere, this paper describes how to reliably elicit the necessary decision knowledge for implementing various decision modes via this method and its computerized support-UNIDAS 2. The most important features of this method are outlined, namely, how to compose the preference order matrices and which are the basic decision rules. Special attention should be paid to specific interactive group decision behaviour of experts. Two examples plainly explain the contents discussed.