IATA-PSS

Core IT system of a modern airline.

Definition

A PSS typically connects: CRS (Computer Reservation System), Inventory Management System, Departure Control System (check-in, boarding), Fare Engine. Major vendors: Amadeus Altea, Sabre SabreSonic, Travelsky, Hitit Crane. External exchanges use EDIFACT-PADIS and OTA XML.

Origin

Architecture standardised by IATA in the 1990s.

Example in context

Lufthansa runs Amadeus Altea as its PSS since 2015.

Related terms

• IATA NDC — modern distribution standard.