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A fare basis code (often just referred to as a fare basis) is an alphabetic or alpha-numeric code used by airlines to identify a fare type and allow airline staff and travel agents to find the rules applicable to that fare. Although airlines now set their own fare basis codes, there are some patterns that have evolved over the years and may ...
A passenger name record ( PNR) is a record in the database of a computer reservation system (CRS) that contains the itinerary for a passenger or a group of passengers travelling together. The concept of a PNR was first introduced by airlines that needed to exchange reservation information in case passengers required flights of multiple airlines ...
The inventory of an airline is generally classified into service classes (e.g. economy, premium economy, business or first class) and any number of fare classes, to which different prices and booking conditions may apply. Fare classes are complicated and vary from airline to airline, often indicated by a one letter code.
Travel class. A typical wide-body jet plane seat plan ( Asiana Boeing 747-400) A travel class is a quality of accommodation on public transport. The accommodation could be a seat or a cabin for example. Higher travel classes are designed to be more comfortable and are typically more expensive.
Proprietary software. Programmed Airline Reservations System ( PARS) is an IBM proprietary large scale airline reservation application, a computer reservations system, executing under the control of IBM Airline Control Program (ACP) (and later its successor, Transaction Processing Facility (TPF)). Its international version was known as IPARS. [1]
Passenger service system. A Passenger Service System or PSS is a network of software applications that help airlines manage all the passenger-related operations from ticketing to boarding. [1] The PSS usually comprises an airline reservations system, an airline inventory system and a departure control system (DCS).
Resource Reservation Protocol. The Resource Reservation Protocol ( RSVP) is a transport layer [1] protocol designed to reserve resources across a network using the integrated services model. RSVP operates over an IPv4 or IPv6 and provides receiver-initiated setup of resource reservations for multicast or unicast data flows.
This has been supported for classes and interfaces since PHP 5.0, for arrays since PHP 5.1, for "callables" since PHP 5.4, and scalar (integer, float, string and boolean) types since PHP 7.0. PHP 7.0 also has type declarations for function return types, expressed by placing the type name after the list of parameters, preceded by a colon. [69]
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