Information Systems Associates FZE AirCore Passenger services system (PSS) of modular, open-platform, web applications that replace core legacy systems.[1] Unisys Altéa Res Integrated airline reservation system and global distribution system (GDS). Amadeus IT Group Crane PAX Web-based airline reservations and ticketing system. Hitit Computer Services iFlyRes Cloud-based next-generation airline passenger service system.[2][3][4][5] IBS Software Navitaire New Skies Integrated Customer Centric Passenger Service System Integrated reservations, departure control, inventory system and e-commerce platform.