近年来，中国民航先后引进了计算机定座系统、计算机离港系统和计算机货运系统，随着这些系统的投入使用和民航业务的飞速发展，人们认识到，机场传统的手工作业方式和现有的一些技术手段越来越不能满足生产和业务的需要，航空公司和机场急切呼唤一种为旅客提供从购票到登机全 In recent years, China Civil Aviation has successively introduced computer reservation system, computer departure system and computer cargo system. With the putting into use of these systems and the rapid development of civil aviation business, people realized that the traditional manual operation mode of the airport and existing Some of the technical means more and more unable to meet the needs of production and business, airlines and airports eager to call for a passenger from the ticket to the boarding all