For the multicriteria optimization the verified causal chains will be transferred into transfer functions. The optimization takes into account competing goals such as: ecosystem services and indicators, water trade, biodiversity, water quality, costs, energy consumption and the availability of water resources. A consideration of target functions within a multicriteria optimization allows the identification of pareto-optimal solutions. Synergies and conflicts in the region can be identified and development objectives can be derived on this basis.

Based on the results of multicriteria optimization, ecologically or economically oriented development scenarios are derived, which enable efficient and sustainable water management. Stakeholders place their priorities on target indicators, regional development goals and hydrological-hydrogeological and ecological conditions. The solutions corresponding to the preferences are drawn from the Pareto set using decision-making techniques. The optimization variables associated with the solution will then define the management for the development scenario.