The authors describe the development and testing of a novel decision support system referred to as the WEAP (Water Evaluation and Planning) model, which is considered one of the most novel environmental planning models ever developed. These papers show that the integration of hydrology and management is highly advantageous, as both supply and demand side interactions can be addressed simultaneously.
Yates, D., D. Purkey, J. Sieber, A. Huber-lee, and H. Galbraith, 2005: Weap21: A demand-, priority-, and preference-driven water planning model. Part 2: Aiding freshwater ecosystem service evaluation. Water International, 30, 501-512