The use of the IT systems for the exchange of electronic data and your tool E-Project has become essential especially on the big projects such as the University clinic of Cancer. As part of our OPC mission, it allows of having a good follow-up of document distribution, validations status, etc… The financial module simplify a lot the situations management. The module of reservations management helped us a lot on this operation on which the amount of reservations was superior to 100 000. You were able to bring all the improvements required to adapt it according to our specifics needs. During thoses 4 years, it has demonstrated its reliability and all the bugs linked to the computing have been trated without delay.