Аннотация:For fundamental reasons regarding the detailed treatment of airspace control technologicalprocesses arising from the need to satisfy a set of basic requirements for the accuracy andtimeliness of detecting controlled airspace’s violations, the article considers the followingpoints: the process of obtaining data from airborne objects (data collection); transmitting data to airborne objects (sending requests for data or delivering ground data to airborne objects); processing data obtained from airborne objects; distributing and organizing requests forairspace maintenance at the local observation subsystem’s level; processing data obtainedfrom airborne objects, distributing and organizing service requests at the regional level.Besides, proposed is a data model for airspace surveillance. It is demonstrated that the mosteffective airspace control systems include the primary and secondary surveillance systems,which together provide users with data about "who" is "where" and "when". Presented is amethodology for assessing the quality of such a system.