AQUATOOL is a Decision Support System Shell (DSSS) model for planning and water management. This DSSS helps in providing diagrams, analysis and result management. It is composed of the AQUATOOL+ user interface and 5 modules which can be used for specific modelling aspects we detail bellow. 
SIMGES is a reservoir based model for water resources systems management, including groundwater. Simulations are computed for a monthly scale and the flow can be obtained for any spatial scale.
GESCAL provides basin water quality evaluation. It calculates the water quality of the rivers and reservoirs. Then, the model is linked to the SIMGES model to use the calculated flow values and deduce the water quality over the all basin.
OPTIGES is used for water balance and water uses modelling. For that, it uses only little information about the physical description of the basin (links, reservoirs and demands) but cannot provide results for a precise time step (monthly at maximum).
The SIMRISK model is a medium-term for management risks. The user defines an initial condition and the model runs different hydrological scenarios to evaluate the hydrological status for each scenario.
EVALHID is a module for the development of rainfall-runoff in complex basin which uses several types of models to evaluate the water resources produced.