to the point where the risk factor is completely accepted; and the y-axis represents a continuum from no trade-off between the criteria to the point of maximum trade-off (Eastman, 2001). Trade-off is the degree to which one criterion can compensate for another and risk may be understood as the likelihood that the decision made will be wrong. The OWA approach is interesting because by reordering and changing criterion parameters, one can generate a wide range of different solution maps and predictive scenarios .The use of the OWA approach allows the evaluation of the wide range of consequences that arise from different management strategies.