One of the promises of cloud computing is that it allows you to leverage resources more efficiently, with a cost of acquisition, deployment and use much less. For the moment, the majority of open source applications are addressed, in particular, to companies. And less or not at all to the governments. Although the local and central government area is one that should not be neglected. Why? First of all, because the local and central government is notorious in the inefficient use of technology, because each of the entities or public institutions have implemented separately and independently of each then have the other systems, more or less own.