MULTIPLE CRITERIA ANALYSIS FOR WATER-QUALITY MANAGEMENT IN THE NITRA BASIN

This paper presents the implementation of one element of a decision su pport system (DSS) for regional water quality management, applied to t he Nitra River Basin in Slovakia. A model-based, aspiration-led method ology for multicriteria decision support has been used for the study. Several reusable, modular software tools have been developed and imple mented: a problem-specific generator to produce the core part of the m athematical programming model, tools for the generation and interactiv e modification of multicriteria problems, and a solver for the resulti ng mixed-integer optimization problem. Provided in the paper are the f ollowing: a complete formulation of the mathematical model (including the imbedded water quality model), a summary of the aspiration-reserva tion-led multiple criteria optimization approach applied to decision s upport, and an overview of results that illustrate the applied approac h and provide some interesting insights to the case study.