Tip: to find a specific term, use the Acrobat search : click D on the binocular icon in the window bar menu
Degraded Mode Mode of operation of an ARTAS Unit whereby the failure of at least one system resource or function has lead to a degradation of the provided services. De-icing Stand The parking place where de-icing occurs where it is not carried out at the departure parking place Delay The period between the CFMU departure and the first take-off time requested by an operator. Delay Function Weekly minute of ATFM delay by volume of traffic. This is a powerful overall indicator which can be used to determine the inherent variability of the system in terms of the relationship between volume, delay and capacity. Delay Locked Loop Digital control loop. In GPS receiver applications, it searches and follows the epoch of the PN code. Deletion (Track) The stopping of the Continuation process of a tracker due to the lack of new Plot information from the radar detection system. Deletion Lag [Delay] (Track) Time duration (or histogram of durations) between the first moment that an Object is no longer measured by the radar system and the subsequent stopping of the Track Continuation process. Deliverable Any measurable, verifiable outcome, result, or item that must be produced to complete a project or a part of a project. (Source: Project Management Institute (PMI) - PMBOK guide). Delivery Time For the purposes of PETAL, the term ‘delivery time’ or ‘message delivery time’ refers to the human-human transfer time, or that period from controller HMI input of a message to the time the aircrew has the message available for display on their screen. Demand for trust Level of trust required from you when the machine intervenes and support the task. Demonstration A teaching method. The instructor, by doing, shows the student what to do and how to do it and with his/her associated explanations indicates why, when and where it is done. Denmark Sweden Interface Member State HMI Project. The project run by EEC experts in cooperation with controllers from Denmark and Sweden was initially requested by the Danish CAA which was later joined by the Swedish CAA. Its objectives are to provide a clear specification and a prototype of the controller working position complying with the HMI requirements for the new Copenhagen Control Centre, and the Swedish programme for modernisation of ATS. In 1997 the initial HMI specifications were completed and a first version of the prototype was delivered. The project was successfully completed in 1999 and has proved very influential on HMI development. Departure Clearance Instructions which specify the route and level to be followed by a flight after take-off; it may be in the form of a Standard Instrument Departure and may include additional data such as the Mode A SSR code assigned to the flight.

Tip: to find a specific term, use the Acrobat search : click D on the binocular icon in the window bar menu