Aviation Systems

Customer facing systems

  • Website & mobile application
  • eCommerce, pre-flight and duty free shopping
  • Airline Reservation System (ARS)
    • Computer Reservation System (CRS)
    • Passenger Service System (PSS)
    • Internet Booking Engine (IBE)
  • Ticketing
    • Electronic Miscellaneous Document (EMD)
    • E-tickets
    • Bar-coded Boarding Pass (BCBP)
  • Frequent Flier Program (FFP), loyalty, mileage and points
  • Load Control - Weight and balance
  • Baggage
    • Electronic Baggage Tags (EBT)
    • Baggage Transfer Message (BTM)
    • Barcode and RFID
    • Self Service Bag Drop (SSBD)
  • Advance Passenger Information System (APIS)
    • Advance Passenger Processing (APP)
    • APIS Quick Query (AQQ)
    • PNRGOV, ACKRES, GOVREQ
  • Departure Control System (DCS) 
    • Crew L-DCS
  • Passenger Flight Information System (PFIS)
Silhouette of an Airplane with data dots surrounding it with lines of a graph in the background.

Aircraft network

  • Aircraft Control Domain (ACD)*
    • Automatic flight guidance and control systems
    • Flight control computers
    • Primary flight displays
    • Flight management computers
    • Navigation display
    • Common Data Network (CDN) - Most sensitive 
  • Airline Information Service Domain (AISD)*
    • ATC, airline administrative, ACARS
    • May write to ACD
    • Crew Information Service (CIS)
    • Maintenance System (MS)
    • Isolated Data Network (IDN)
  • Passenger Information and Entertainment Service Domain (PIESD)*
    • Voice, internet connectivity
    • May have physical connection to ACD
    • Open Data Network (ODN) - Non-sensitive components
  • Passenger Owned Devices Domain (PODD)*

Aircraft inflight systems

  • Aircraft Data Network (ADN) - Onboard network & interface devices
  • Inflight Connectivity (IFC) – Airline Passenger Communications (APC) services
  • Passenger Information and Entertainment Services Domain (PIESD)
  • Inflight entertainment and Wi-Fi connectivity system (IFEC)
  • Inflight Shopping (IFS)
  • Inflight Entertainment (IFE) / Inflight Entertainment System (IFES) 
    • Integrated, standalone, hybrid
    • Personal Control Unit (PCU)
    • Seat Display Unit (SDU)
    • System Control Unit (SCU)
  • Cabin Terminal - Cabin crew transactions
  • Cabin Management System (CMS)  - Cabin Crew Panel
    • PA – PRAM, BGM
    • System – PC power, PED service, system status
    • Seats – PAX call, lighting, actuators
    • Connectivity – Wi-Fi, AVOD
    • Message – Crew log

Aircraft cockpit & avionics system

  • Air Traffic Service Unit (ATSU)
    • ACARS router / Digital Interface Unit (DIU)
  • Flight Management System (FMS) 
    • Control Display Unit (CDU)
    • Flight Management Computer (FMC)
    • Electronic Flight Instrument System (EFIS)
    • Navigation Display (ND) / Multifunction Display (MFD)
  • Datalink Control and Display Unit (DCDU)
  • Controller to Pilot Data Link Communications (CPDLC) system
  • Engine-Indicating and Crew-Alerting System (EICAS)
  • Aircraft Condition Monitoring System (ACMS)
  • Aircraft Health Management (AHM) system
  • Integrated Vehicle Health Management system (IVHM)
  • Central Maintenance System (CMS)
  • Centralized Fault Display System (CFDS)
  • Communications Management Unit (CMU)
  • Weather
  • Positioning (GPS)
  • Electronic Flight Bag (EFB)
  • Electronic Log Book (ELB)

Airline - other systems

  • Corporate
    • Human capital
      • Training
      • Vacation planning
      • Cosmic radiation management
    • Finance and accounting
    • IT
    • Internet/Intranet, Email, data warehouse, servers, storage and data centers
    • Reporting and analytics
  • Commercial
    • Staff travel
    • Fleet management
    • Payment processors, platforms and gateways
    • Revenue management and accounts
    • Distribution / inventory management
      • Global Distribution Systems (GDS)
      • Central Reservation Systems (CRS)
      • Online Travel Agencies (OTA) 
      • Traditional travel agencies
  • Airport
    • Flight Information Display System (FIDS)
    • Baggage Information Display System (BIDS)
    • Gate Information Display Systems (BIDS)
    • Common-use Self-service Kiosk (CUSS)
    • Common Use Terminal Systems (CUTE)
    • 3rd Party Ground Handling (3PGH)
    • Airport Operational Database (AODB)
  • Other
    • Automatic Terminal Information Service (ATIS)
    • Traffic Information Service – Broadcast (TIS-B)
    • Flight Information Service – Broadcast (FIS-B)
    • ICAO Bird Strike Information System (IBIS)