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).
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 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.

Market Analysis and Insights: Global Passenger Service System Market
The global Passenger Service System market size is projected to reach US$ 10730 million by 2027, from US$ 6814 million in 2020, at a CAGR of 6.2% during 2021-2027.
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Global Passenger Service System Scope and Market Size
Passenger Service System market is segmented by company, region (country), by Type, and by Application. Players, stakeholders, and other participants in the global Passenger Service System market will be able to gain the upper hand as they use the report as a powerful resource. The segmental analysis focuses on revenue and forecast by Type and by Application in terms of revenue and forecast for the period 2016-2027.

Segment by Type
Airline Reservation System
Airline Inventory System
Departure Control System
Others

Segment by Application
Ferry
Railways
Airways
Others

By Region
North America
U.S.
Canada
Europe
Germany
France
U.K.
Italy
Russia
Nordic
Rest of Europe
Asia-Pacific
China
Japan
South Korea
Southeast Asia
India
Australia
Rest of Asia
Latin America
Mexico
Brazil
Rest of Latin America
Middle East & Africa
Turkey
Saudi Arabia
UAE
Rest of MEA

By Company
Sirena-Travel
Mercator Ltd.
Travelsky Technology Ltd.
KIU System Solutions.
AeroCRS
SITA NV
Sabre Corp.
Radixx International, Inc.
Hitit Computer Services A.S.
Amadeus IT Group SA
Travel Technology Interactive
Unisys Corp.
Hexaware Technologies Ltd.
Intelisys Aviation Systems Inc.
Bravo Passenger Solutions Pte Ltd.
IBS Software Services Pvt. Ltd.
Information Systems Associates FZE