Air Line System Code Share Flights

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A computer reservation system is used for the reservations of a particular airline and interfaces with a global distribution system (GDS) which supports travel agencies and other distribution channels in making reservations for most major airlines in a single system.

An airlines direct distribution works within their own reservation system, as well as pushing out information to the GDS.

The second type of direct distribution channel are consumers who use the internet or mobile applications to make their own reservations.

Travel agencies and other indirect distribution channels access the same GDS as those accessed by the airline reservation systems, and all messaging is transmitted by a standardized messaging system that functions on two types of messaging that transmit on SITAs high level network (HLN).

These messaging types are called Type A usually EDIFACT format for real time interactive communication and Type B TTY for informational and booking type of messages.

Since airline reservation systems are business critical applications, and they are functionally quite complex, the operation of an in-house airline reservation system is relatively expensive.

Today, the GDS are run by independent companies with airlines and travel agencies being major subscribers.

There is one major Regional GDS, Abacus, serving the Asian market and a number of regional players serving single countries, including Travelsky (China), Infini and Axess (both Japan) and Topas (South Korea).

Of these, Infini is hosted within the Sabre complex, Axess is in the process of moving into a partition within the Worldspan complex, and Topas agencies will be migrating into Amadeus.

A few examples are Deltas OSS and Deltamatic systems and EDS SHARES.

SITA Reservations remains the largest neutral multi-host airline reservations system, with over 100 airlines currently managing inventory.

The inventory of an airline is generally classified into service classes (e.g.

Inventory data is imported and maintained through a schedule distribution system over standardized interfaces.

One of the core functions of inventory management is inventory control.

Inventory control steers how many seats are available in the different booking classes, by opening and closing individual booking classes for sale.

In most cases, inventory control has a real time interface to an airlines Yield management system to support a permanent optimization of the offered booking classes in response to changes in demand or pricing strategies of a competitor.

It contains all offered flights for a particular city-pair with their available seats in the different booking classes.

This display contains flights which are operated by the airline itself as well as code share flights which are operated in co-operation with another airline.

If the city pair is not one on which the airline offers service, it may display a connection using its own flights or display the flights of other airlines.

The availability of seats of other airlines is updated through standard industry interfaces.

Air Line System Code Share Flights