THE PURPOSE OF THIS PROGRAMME IS TO DESIGN, DEVELOP AND DEPLOY A NEW NEW-GENERATION ATM SYSTEM (THE ‘4-FLIGHT AIR TRAFFIC MANAGEMENT SYSTEM’), WHICH IS FULLY COMPATIBLE WITH THE REQUIREMENTS LAID DOWN IN THE SINGLE EUROPEAN SKY REGULATORY FRAMEWORK (SES) AND WITH THE OPERATIONAL CONCEPTS AND TECHNOLOGIES VALIDATED AGAINST IT WITHIN THE FRAMEWORK OF THE FRAMEWORK FOR THE SINGLE EUROPEAN SKY (SES). THE IMPLEMENTATION OF THE 4-FLIGHT SYSTEM, WHICH IS BASED ON THE LATEST TECHNOLOGY AND ON THE BRAND NEW COFLIGHT PROCESSING SYSTEM (FDPS), MIGLOREIR, THE MANAGEMENT OF THE ITALIAN AIRSPACE BY STANDARDISING SYSTEMS AND TOOL IN THE 4 ITALIAN SUPERVISORY CENTRES. THE ARCHITECTURE OF THE 4-FLIGHT SYSTEM ALSO ENSURES A SIGNIFICANT IMPROVEMENT IN THE MODULARITTS, FUNCTIONING, SAFETY AND SECURITY OF THE WHOLE ATM SYSTEM. THEREFORE, THE 4-FLIGHT WILL PROVIDE OPTIMUM PERFORMANCE IN TERMS OF SAFETY, CAPACITY, ENVIRONMENTAL IMPACT AND COST EFFICIENCY, CONTRIBUTING TO A SIGNIFICANT IMPROVEMENT OF THE