The ability of satellites to actively control their attitude has changed the way we live. Navigation systems, satellite television, and weather forecasting, for example, all rely on satellites which are able to determine and control their attitude accurately. After a short introduction to the argument, in order to accompany you through the various phases of this project, you need to understand the Model Theory, explained in the second chapter, with the analysis about different control system, focusing on the space control. Then, the third chapter will show what is the Attitude Determination Control System, how acts in a satellite mission, which architecture can assume, with different solutions and with all the steps needed for design and validation.