Surveillance data processing systems shall be designed, built, maintained and operated using the appropriate and validated procedures, in such a way as to provide the required performance and quality of service within a given environment (surface, TMA, en-route) with known traffic characteristics, in particular in terms of accuracy and reliability of computed results, correctness, integrity, availability, continuity and timeliness of information at the control position.
Sistemi za obdelavo nadzornih podatkov se načrtujejo, gradijo, vzdržujejo in upravljajo po ustreznih in veljavnih postopkih tako, da zagotavljajo potrebno učinkovitost in kakovost storitev v danem okolju (manevrska površina letališča, terminalno območje, na zračni poti) z znanimi prometnimi značilnostmi, zlasti glede točnosti in zanesljivosti izračunanih rezultatov, pravilnosti, integritete, razpoložljivosti, kontinuitete in pravočasnosti informacij na kontrolnem mestu.