The EDoL project aims to develop an innovative e-health tool to support chronic painful patients. By placing the patient at the heart of the device, this program will improve the assessment of pain and its many psychosocial effects (anxiety, depression, sleep disorders, cognitive disorders, etc.), assist the patient on a daily basis in the management of his pain, make him an actor in his care and finally improve his quality of life by returning him to physical activity, social life or a return to employment. This project is also intended to improve the pathway of care by involving all healthcare professionals and to develop new avenues for research.