Passenger service system

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A passenger service system (PSS) is a series of critical systems used by airlines. The PSS usually comprises an airline reservations system, an airline inventory system and a departure control system (DCS).

Modules

Generally the PSS is made up of modules that are used to manage different parts of the airline’s business.

The airline reservations system is the system that allows an airline to sell their inventory (seats). It contains information on schedules and fares and contains a database of reservations (or passenger name records) and of tickets issued (if applicable).

The airline inventory system may or may not be integrated with the reservation system. The system contains all the airline’s flights and the available seats. The main function of the inventory system is to define how many seats are available on a particular flight by opening or closing an individual booking class in accordance with rules defined by the airline.

The departure control system (DCS) is the system used by airlines and airports to check-in a passenger. The DCS is connected to the reservation system enabling it to check who has a valid reservation on a flight. The DCS is used to enter information required by customs or border security agencies and to issue the boarding document. In addition the DCS may also be used to dispatch cargo and to optimize aircraft weight and balance.

References

v t e Commercial aviation
Airlines	Airline codes Airline holding companies Cargo airline Charter airlines Flag carriers Low-cost airlines Non-scheduled airline Passenger airlines Regional airlines
Alliances	Oneworld SkyTeam Star Alliance Value Alliance Vanilla Alliance U-FLY Alliance
Trade groups	International ACO ATAG IATA IATAN IFALPA ISTAT United States A4A RAA Europe A4E ASD ECA EBAA ERA ETWF Other regions AACO AAPA AFRAA RAAA
Aircrew	Pilot in command (Captain) First officer Second officer Third officer Relief crew Flight attendant Flight engineer Loadmaster Aircraft pilot Purser Dead mileage
Airliner	Travel class First class Business class Premium economy class Economy class Basic economy class Aircraft cabin Aircraft lavatory Aircraft seat map Airline meal Airline seat Buy on board Crew rest compartment In-flight entertainment Inflight smoking Galley Sickness bag
Airport	Aerodrome Airline hub Airport check-in Airport lounge Airport rail link Airport terminal Airside pass Airstair Boarding Domestic airport Gate International airport Jet bridge Low-cost carrier terminal Runway Transit hotel
Customs / Immigration	Arrival card Border control (internal) Departure card Passport Timatic Travel document Travel visa (Electronic)
Environmental effects	Hypermobility Environmental effects of aviation
Law	Air transport agreement Air route authority between the United States and China Bermuda Agreement (UK–US, 1946–1978) Bermuda II Agreement (UK–US, 1978–2008) Cross-strait charter Beijing Convention Cape Town Treaty Chicago Convention Convention on the Marking of Plastic Explosives European Common Aviation Area Flight permit Freedoms of the air EU–US Open Skies Agreement Hague Hijacking Convention Hague Protocol Montreal Convention Paris Convention of 1919 Rome Convention Sabotage Convention Tokyo Convention Warsaw Convention
Intergovernmental organizations	ICAO ECAC Eurocontrol EASA ENCASIA
Baggage	Bag tag Baggage allowance Baggage carousel Baggage cart Baggage reclaim Baggage handler Baggage handling system Baggage sizer Checked baggage Hand luggage Lost luggage (WorldTracer) Luggage lock
Aviation safety	Air rage Air traffic control Air traffic service Aircraft safety card Airport authority Airport crash tender Airport police Airport security Airspace class Area control center Brace position Civil aviation authority Control area Control zone Controlled airspace Evacuation slide Flight information region Flight information service Flight recorder Instrument flight rules Overwing exits Pre-flight safety demonstration Sky marshal Special use airspace Special visual flight rules Terminal control area Terminal control center Uncontrolled airspace Upper information region Visual flight rules
Airline tickets	Airline booking ploys Airline reservations system Airline ticket Airline timetable Bereavement flight Boarding pass Codeshare agreement Continent pass Electronic ticket Fare basis code Flight cancellation and delay Frequent-flyer program Government contract flight One-way travel Open-jaw ticket Overbooking (Overselling) Passenger name record Red-eye flight Round-the-world ticket Standby Tracking Travel agency Travel website
Ground crew	Aircraft maintenance technician Aircraft ground handling Baggage handler Flight dispatcher
Miscellaneous	Air cargo Air travel Aviation taxation and subsidies Mile high club