Small airlines use a collection of software between their business, if they do their own maintenance they use a tool like AMOS (http://www.swiss-as.com/main.do

Small airlines use a collection of software between their business, if they do their own maintenance they use a tool like AMOS (http://www.swiss-as.com/main.do http://www.swiss-as.com/main.do) which is produced by a subsidiary of Lufthansa, then another tool like sabre (http://www.sabreairlinesolutions.com/home/software_solutions/enterprise_operations/ http://www.sabreairlinesolutions.com/home/software_solutions... ) to manage crew, flights planning etc. Bigger airlines will probably use SAP. The hardware is going cloud based/vm but due to a ton of legacy and regulation concerns (i.e. data protection, rules regarding data access in the event of accidents etc) it's very slow going and most companies will still host their own servers, with maybe a company-wide shared oracle/db instance. The market is strangely competitive, though it has become quite stale in my opinion. RAMCO (http://www.ramco.com/aviation-suite/campaign/aviation/ http://www.ramco.com/aviation-suite/campaign/aviation/) are the closest thing to a "disruptive" force, but their software is widely regarded as flashy with little meat to it (and a lot of glitches). Source: developer for one of the MRO software providers (not listed here)