GDSes vs Airlines
è¯»åˆ°ä¸€ç¯‡å¾ˆæœ‰è¶£çš„æ–‡ç« ï¼Œå…³äºŽèˆªç©ºå…¬å¸å’ŒGDS(Global Distribution System)之间的互动，了解了ä¸å°‘旅行社订票系统的知识，以åŠæ–°çš„东西。记在这儿当个资料，四大GDS系统：
Sabre – originated as the American Airlines reservation system, but is now independent
Galileo — one of its major progenitors was Apollo, the United reservation system, but Galileo is now part of Cendant (a provider of “travel, real estate, vehicle, and financial services”)
Amadeus — origins as the reservation system of several European airline res systems, was until earlier this year a publicly-traded company, recently taken private by a private equity, though Iberia, Air France/KLM and Lufthansa still have stakes. Also bought (in the mid 1990s) SystemOne, the Continental (and before that, Eastern) res system.
Worldspan — origins as the TWA, Northwest and Delta reservation systems, but now privately owned (it had an abortive IPO attempt in 2004).
新兴绕过GDS的订票系统：
G2 Switchworks was launched by the former technology head of Orbitz to develop webtools to bypass GDSes.
ITA is another on the same trail.
