Weveyes presents an information ergonomics of disconcerting simplicity thanks to a data visualization allowing to apprehend all the data with a simple look, without any action. This intuitive interface is based on a simple, universal visual language that conveys strong cross-functionality. The information is globalized, without being reduced, going from the detail to the whole, through time. Weveyes gives a face to data, in analogy with our ability to immediately recognize a sum of complex information. It thus saves time and increases efficiency for users. With an easily integrated Webapp, the support opens the way to synergies, and offers itself to better exploit, better enhance the production of data. Developed in Health for doctors and displaying patient files and population data, it is also open to other sectors of activity.