| English | Thesaurus |
| aeronautical data | A representation of aeronautical facts, concepts or instructions in a formalized manner suitable for communication, interpretation or processing. |
| controller-pilot data link communications | A means of communication between controller and pilot, using data link for ATC communications. |
| current data authority | The designated ground system through which a CPDLC dialogue between a pilot and a controller currently responsible for the flight is permitted to take place. |
| data convention | An agreed set of rules governing the manner or sequence in which a set of data may be combined into a meaningful communication. |
| data link communications | A form of communication intended for the exchange of messages via a data link. |
| data link initiation capability | A data link application that provides the ability to exchange addresses, names and version numbers necessary to initiate data link applications. |
| data link-automatic terminal information service | The provision of ATIS via data link. |
| data processing | A systematic sequence of operations performed on data. (Examples of operations are the merging, sorting, computing or any other transformation or rearrangement with the object of extracting or revising information, or of altering the representation of information.) |
| data product | Data set or data set series that conforms to a data product specification (ISO 19131*). |
| data product specification | Detailed description of a data set or data set series together with additional information that will enable it to be created, supplied to and used by another party (ISO 19131*). (A data product specification provides a description of the universe of discourse and a specification for mapping the universe of discourse to a data set. It may be used for production, sales, end-use or other purpose.) |
| data quality | A degree or level of confidence that the data provided meet the requirements of the data user in terms of accuracy, resolution and integrity. |
| data set | Identifiable collection of data (ISO 19101*). |
| data set series | Collection of data sets sharing the same product specification (ISO 19115*). |
| downstream data authority | A designated ground system, different from the current data authority through which the pilot can contact an appropriate ATC unit for the purposes of receiving a downstream clearance. |
| flight data analysis | A process of analysing recorded flight data in order to improve the safety of flight operations. |
| flight data monitoring | A process of analysing recorded flight data in order to improve the safety of flight operations. |
| next data authority | The ground system so designated by the current data authority through which an onward transfer of communications and control can take place. |
| obstacle/terrain data collection surface | A defined surface intended for the purpose of collecting obstacle/terrain data. |