List established when there are no more readily available spaces; names awaiting seat availability.
Any weakening or elimination of rules conditions as part of a private fare sale.
Extensible Markup Language. A set of rules for encoding documents in machine-readable form.
The use of data coded in XML to communicate between two devices.
A profitability indicator that is calculated by subtracting CASK from RASK.
The practice of changing availability of seats for each booking code on a flight. This process ensures optimized revenue per seat sold and entails using detailed historical booking, fare, and profit information, with powerful algorithms for implementation. Many airlines use what is called O&D revenue optimization, which creates yield management models across a carrier's entire network, rather than on specific flights only. ATPCO's RBD data provides the link between inventory and price, and is used in these systems.
See Carrier-Imposed Fees.
A generic carrier code used for carriers that participate in the IATA agreements. Any participant may use the fares and rules identified by carrier YY.
Zonal Employee Discount.
A fare where the origin, the destination, or both are expressed as a user-defined zone.
Divisions of geographic areas of the world. ATPCO Zone codes are three numbers that begin with 0 or 1 for Area 1; with 2 for Area 2, and with 3 for Area 3.