The Covid 19 pandemia has been an extremely potent enhancer of digital health solutions spreading. Telemedicine was already available in France before SARS-COV2, but not used as a standard of care. It seems like when sticking to the expressed needs and objectives, the implementation of digital solutions became a reality with a high level of acceptability. Since e-health is spreading and the commercial offer of digital solutions dramatically increasing, it seems critical to predict the impact of those new tools mental load of users in order to make sure digital solutions really bring better quality of care together with quality of life (patients) or profesional life (health care professionals). Assistance publique -Hôpitaux de Paris launched in 2022 an ambitious project focusing on digital innovation at Hotel Dieu, making the largest hospital in Europe also an active promotor of digital health. This project includes an Innovation Hub, a large incubator for Start-ups, and (among others) the Digital Medical Hub (DMH). DMH is combining an academic platform dedicated to promoting scientific research on E-health and an open innovation structure promoting transformation strategies for e-health projets