Glossary

From ACC to TTOT – here you will find definitions of all the most important A-CDM terms.

  • ACC

    Airport Control Centre

    Control centre for planning and controlling all aircraft operations and passenger handling processes at the airport 

  • A-CDM

    Airport Collaborative Decision Making

    Concept created by Eurocontrol to improve collaboration between all aircraft ground handling partners

  • ACZT

    Actual Commencement of De-Icing Time

  • AEZT

    Actual End of De-Icing Time

  • AIBT

    Actual In-Block Time

    The actual time that an aircraft arrives at its parking position and switches off the engines; usually when ground handling begins

  • AIMS

    Airspace Information Monitoring System; see AVD

  • AIP

    Aeronautical Information Publication

  • ALDT

    Actual Landing Time

  • AOBT

    Actual Off-Block Time

    The actual time that an aircraft leaves its parking position; usually when ground handling ends

  • AODB

    Airport Operational Database

    Operational database including all master data; subsystem of FARMS

  • AOE

    Airport Operational Extranet

    Operational extranet with several subportals and the possibility to enter defined data into FARMS. Used within the scope of the Airport CDM process for TOBT entry by TOBT personnel.

  • ARDT

    Actual Ready Time (for movement)

    When the aircraft is ready to be moved

  • ASAT

    Actual Start-Up Approval Time

    Time that an aircraft receives start-up approval from air traffic control

  • ASIMS

    Advanced Sita Message Server

    System for tracking processes and clearing IATA messages (LDM, MVT, PTM, PAL, CAL)

  • ASRT

    Actual Start-Up Request Time

    Time the pilot requests start-up clearance from air traffic control

  • ATA

    Actual Time of Arrival;

    see ALDT

  • ATC

    Air Traffic Control

  • ATD

    Actual Time of Departure;

    see ATOT

  • ATOT

    Actual Take-Off Time

  • AVD

    Aerial View Display

  • BTA

    Actual On-Block;

    see AIBT

  • BTD

    Actual Off-Block;

    see AOBT

  • CDM

    Collaborative Decision Making;

    see A-CDM

  • CTOT

    Calculated Take-Off Time

    Issued by the NMOC

  • DPI

    Departure Planning Information

    Information on status updates regarding aircraft departure

  • ECZT

    Estimated Commencement of De-Icing Time

  • EEZT

    Estimated End De-Icing Time

  • EIBT

    Estimated In-Block Time

    The estimated time that an aircraft will arrive at its parking position and switch off the engines; usually when ground handling begins

     

     

  • ELDT

    Estimated Landing Time

  • EOBT

    Estimated Off-Block Time

    The estimated time that an aircraft will start moving by air traffic control according to the ATC flight schedule

  • ETA

    Estimated Time of Arrival;

    see ELDT

  • ETD

    Estimated Time of Departure;

    see LOBT/TOBT

  • EXIT

    Estimated Taxi-In Time

    The estimated taxi time from the runway to the parking position

  • EXOT

    Estimated Taxi-Out Time

    The estimated taxi time from the parking position to the runway

  • FARMS

    Flight and Resource Management System

    Airport management system for storing master data, managing flight schedule operations, managing resources and providing the basis for exchanging data with external systems

  • FIDS

    Flight Information Display System

    System for displaying data on different screens

  • FMS

    Flight Management System

  • FUM

    Flight Update Message

    Information on the status update of an aircraft

  • LOBT

    Local Off-Block Time

    Estimated time of departure by the ACC (Airport Control Centre)

  • MTTT

    Minimum Turn-round Time

    The minimum turn-round time (between on- and off-block) agreed with the ground handler or aircraft operator

  • NMOC

    Network Manager Operations Centre

  • OFB

    Off-Block Time; 

    see AOBT

  • ONB

    On-Block Time; 

    see AIBT

  • SAMS

    Slot Allocation and Monitoring System

    System operated by Airport Coordination Germany (FHKD) to allocate slots to coordinated German commercial airports

     

  • SIBT

    Scheduled In-Block Time

    The time coordinated by Airport Coordination Germany at which an aircraft arrives at its parking position and switches off the engines; usually when ground handling begins

     


     

  • SOBT

    Scheduled Off-Block Time

    The off-block time coordinated by Airport Coordination Germany

  • STA

    Scheduled Time of Arrival (aircraft on blocks)

  • STD

    Scheduled Time of Departure (aircraft off blocks)

  • TFDPS

    Tower Flight Data Processing System

    System used by air traffic control for processing flight data electronically

  • TOBT

    Target Off-Block Time

    Target ready time; basis for the Airport CDM process and calculating the TSAT

  • TSAT

    Target Start-Up Approval Time

    This indicates the time the pilot can expect to receive start-up clearance from air traffic control in line with the generated sequence

  • TTOT

    Target Take-Off Time

    Target time of departure, basis for exchanging data with the NMOC