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Commission The highest level body in Eurocontrol Organisation. Formerly referred to as the Permanent Commission. Commissioning The radar sensor performance is analysed in order to define the airspace volume where the radar sensor can provide radar services according to local operational requirements. Common Operational Performance Specifications Document reflecting the current state of agreement on the Operational Requirements, the Functional Performance specifications and the Interface Requirements Specifications of a functional block. It may prepare a way for the development of a Eurocontrol Standard document. Common Path is the final part of trajectory of a pair of aircraft approaching the same runway where the route is the same and the altitude is smaller than the ILS intercept altitude plus 900 ft. Common Path Horizon Is the runway proximity area for which AMAN provides common path protection Common Core Content of ATCO Training The CCC project consists in creating a common core training of ATCO for ECAC area. The content is described by syllabus and examples of training plans, tests and performance objectives. Communication The most important form of social interaction, the process of verbal or non-verbal information transfer between a sender and receiver. Communication Centre An aeronautical fixed station which relays or re-transmits telecommunication traffic (or to) a number of other aeronautical fixed stations directly connected to it. Communication, Navigation and Surveillance The way in which enhanced capabilities of satellite-based navigation and digital data link communication systems will permit the next generation of ATM systems to combine the features of ADS and Controller-to-Pilot Data Link Capability with the conventional ATC functions. The combination of these enabling CNS technologies and their application to ATM has become known as CNS / ATM. Communications Management Unit The Communications Management Unit is to provide data service capabilities, permitting the transfer of data between applications through the airborne network, the air.ground network and participating ground networks. The basic CMU functions include the router function, Network Management provisions for ATN air-ground data links, and ATN compatible interfaces with onboard end systems. Competence 1- The knowledge, skills and abilities that exist among and across staff and groups of staffs.
2- The appropriate knowledge, skills and experience to provide the valid air traffic control services stated in an air traffic controller’s licence. (Ref. Developed by Licensing Work Group).
Competence Scheme The approved method by which competence is measured and maintained by the licensing authority. (Ref. Developed by Licensing Work Group).
Competitive advantage The factors that make an organisation distinctive from other organisations in the same sector.

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