p>The Graph Editor for Basin Simulation program was recently developed by the Polytechnic University of Valencia. It aims to replace the previous editors (SIMWIN and OPTIWIN) by means of providing in turn support to other simulation modules. AQUATOOLDMA has also as a goal to process basin simulation work related to the development of 2009 management plans. In that order, it generates support to joint simulation basin management models, SIMGES,  and simulation of water quality at basin scale, GESCAL. It also includes a display of GIS layers with which it can establish a direct relationship between graph elements of the simulation and the "water bodies" included in the GIS loaded layers.