This paper proposes innovative group decision making framework for the sustainable management of regional hydro-systems. It is based on the Analytic Hierarchy Process (AHP) philosophy and two conceptually different models of treating decision making problem in group framework without and with consensus. Typical hydro-system in Serbia is used as a case study to demonstrate how different aggregation schemes influence resulting group decision(s). Different from our earlier work (Srdjevic and Srdjevic, Sustainable use and development of watersheds. Springer, Dordrecht, pp 201-213, 2008), here the group of twelve individuals participated in evaluation of five water uses of the hydro-system. Weight of each decision maker in the group is defined according to his/her demonstrated consistency and used as an input to the aggregation process to derive group decision(s). Differences in ranking water uses obtained without consensus and with consensus indicated importance of selecting proper aggregation scheme. We recommend application of a consensus based aggregation method because each participating individual has a 'vote' which counts in the final decision, so dominance is at least reduced (if not fully excluded), and finally, the final decision is expectably acceptable for all participants at the end of process.
展开▼
