Singapore airlines, uses Web-based intelligent systems including expert systems and neural computing to manage the company’s flight crew scheduling and handle disruptions to the crew rosters. The Integrated Crew Management System(ICMS) project, implemented in Singapore 1997, consists of three modules: one roster assignment module for cockpit crew, one for the cabin crew, and a crew tracking module. The first two modules automate the tracking and scheduling of the flight crew’s timetable. The second module tracks the positions of the crew and includes an intelligent system that handles crew pattern disruptions