Prevention is central for the national health strategy. The e-health tools may be useful to change the medical practice and to make patient involved in prevention. The objective of PEPS is to develop computer based tools to make effective the prevention approach for both physician and patient. The patient will have a prevention plan made with the physician and in accordance with the content of evidence based practice guidelines and tools to manage it. The project will provide solutions to the problems related to the collection of interoperable data, construction of decision rules, building customized prevention plans, monitoring of prevention, feedback to the physician and the patient. The consortium brings together complementary skills for this project: 2 Inserm units involved in e-health (LIMICS, CIC-IT Biosensors and e-Health, Innovation and Practice), 3 industrials in the e-health sector (CompuGroup Medical Solutions , Silk Computing, Vidal), and the College of General Practice. The PEPS project is organized around 8 tasks: - a task of coordination (T1), - a task for needs analysis allowing to identify the functional specifications of the platform PEPS, the roles and preferences of the various users and the ergonomic specifications of the interfaces (T2), - a task of data capture modelling and the specification of helping tools for prevention (T3), - a task of knowledge base development containing the rules of prevention and a Web service to reach prevention initiatives from a patient profile (T4), - a task of collaborative construction of a plan of prevention personalized (PPP) from the proposed prevention initiatives and the preferences of the patient (T5), - a task of integration of the PPP in the patient record (T6), - a task of integration in the PPP of tools of documentation, generation of alerts, follow-up, re-motivation on the platform PEPS ( T7) and finally of a task of experiment and validation led together with the CMG and the CISS, Interassociative Collective on the health, so demonstrating the usability and the interest of the platform for the healthcare professional in cabinetor in multi-professional nursing homes and for patient (T8). The expected impacts from the project are important. At the scientific level, the PEPS project will be a contribution to the implementation of solutions of interoperability for the re-use of healthcare data within the framework of prevention. The project is innovative at the methodological level offering a user-centered conception of "persuasive" innovative medical tools. At the industrial level, an enrichment of the patient record will be done by the introduction of prevention services. At the societal level, the platform PEPS will give healthcare authorities the possibility of influencing the healthcare professionals and the population thanks to the availability of indicators and to the better knowledge of the practices in the field of the prevention and will allow the citizen to become a main actor of his prevention in a simple, reliable and guided way.