Based on the principle that there is a real difference between weather forecasts and the reality of the climate the designers of WEZA offer an application allowing to have reliable weather information. His primary source of information? Its users who take pictures of the sky in the place where they are to provide proof of real time. The values of reliability mutual aid and immediacy are at the heart of the development of its application which is above all based on a participatory model. Therefore : "weather is yours" !