This program aims to gather this information and to offer an integrated environment presenting the main available design possibilities, and allowing to closely compare the performances of different technological options for any specific pumping project. .The model covers all pump technologies: centrifugal or positive displacement, with DC or AC motors, with or without integrated power converter. It has been developed using detailed experimental measurements on several pump devices, and has proven to be very reliable over the whole operating range if good input parameter are available (errors of the order of 5 to 10%). When the set is restricted, the model stays robust around the known data region, but its performances may become worse (by 10-20%) in marginal operating regions.