M.A.M.M.I. 3 (Multi-Actor Man Machine Interfaces - 3rd phase) corresponds to the final phase of a research project carried out between 2002 and 2008 around the issues of collaboration in ATC (Air Traffic Control). This project was carried out by a multidisciplinary team made up of researchers, business experts (DGAC - NASD) initial HMI designer-developers (Intuilab) and designers (intactile DESIGN). In this last phase work was done on task sharing via small communication areas and a 3D visualization of conflict situations between aircraft.