Faculty of Economics, University of Catania, Corso Italia;
Faculty of Economics, University of Catania, Corso Italia;
Institute of Computing Science, Poznafi University of Technology,60-965 Poznan and Systems Research Institute, Polish Academy of Sciences,01- 447 Warsaw, Poland;
Dominance-based Tough Set Approach; interactive multiobjeetive optimization; decision rules; Pareto op-timal set.;