As Hung explains: in order to provide air ticketing services, the Hi-Tour website has to have online links to the databases of over 500 airlines worldwide and be able to provide up-to-the-second seat availability information at any point, with no margin for mistakes.
洪英才舉例，全民旅遊網為了提供飛機劃位訂票，必須和全球五百多家航空公司的資料庫連線，隨時更新機位資料，分分秒秒都閃失不得。