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In software engineering, a class diagram [1] in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system's classes, their attributes, operations (or methods), and the relationships among objects. The class diagram is the main building block of object-oriented modeling.
Delta Air Lines launched the Delta Automated Travel Account System (DATAS) in 1968. United Airlines and Trans World Airlines followed in 1971 with the Apollo Reservation System and Programmed Airline Reservation System (PARS), respectively. Soon, travel agents began pushing for a system that could automate their side of the process by accessing ...
The system was pursued to develop in order to create synergies between AMR, Marriott, Hilton Hotels Corporation and Budget Rent-A-Car and fully integrate and unify the reservation systems of the companies involved. In 1988 the four large corporations made contracts to complete the system by June 1992 project at a cost of $55 million.
Central reservation system may refer to: Airline reservations system, the reservation system used by an airline company; Hotel reservation system, the central reservation system used by the hotel and resort industry; Computer reservation system, another name for the airline reservation systems used by travel agents
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A class diagram exemplifying the singleton pattern.. In object-oriented programming, the singleton pattern is software design pattern that restricts the instantiation of a class to a singular instance.
It introduced an electronic reservations system, Magnetronic Reservisor, in 1952. [7] The first computerized booking system was the little-known Trans-Canada Air Lines (today's Air Canada) system, ReserVec developed by Ferranti Canada. It started to be delivered in April 1961 and by January 24, 1963 completed the airline switch-over from the ...
In addition to airlines, the CRS is also used to book train travel, cruises, car rental, ferry reservations, and hotel rooms. Amadeus also provides New Generation departure control systems to airlines. [1] Amadeus IT Group is a transaction processor for the global travel and tourism industry.