Central and local governments around the world are increasingly opening to supporting continuous efforts in achieving the open governments, providing to citizens public data of national interest in an electronic format, on-line accessible on the internet, reusable in a freeway. For communities and public authorities open data is an open platform for data as statistical data, cartographic data financial and economic data on regions. As such, they offer a perspective of openness to innovation, dialogue and cooperation, to modernization of public services. Through open data, public actions - projects, decisions, public accounts are becoming more affordable and comprehensive, fostering citizen involvement, and thereby supporting civic engagement.