In 1994, Sabre contacted Aaron Marcus and Associates to assist in the development of revolutionary changes to the Sabre air travel booking system, one of the world's largest private online systems, which was originally created in the 1970s. Among the proper steps, interesting mis-steps occurred, some of which are discussed in this case study. Providing vehicle drivers and passengers access to information about their location, planned trip route, and sites of interest along the way has been a challenge since the early automobile days. For many decades, the American Automobile Association, as well as other organizations and publishers, has produced maps, guidebooks, and specialized trip documents. Today, onboard computers, global positioning satellite systems, and Internet access make interactive screen displays a technical reality.
Many commercial systems are still in early stages of development.
User interfaces for consumer products beyond the desktop enable users to access complex data and functions without extensive novice documentation. Successful solutions to user-interface design consist of partially universal and partially unique solutions to the design of metaphors, mental models, navigation, appearance, and interaction. By managing the user's experience of familiar structures and processes, the user-interface designer can achieve more compelling forms and the user interface itself can become more usable and acceptable. In addition, users can become more productive and satisfied with the product in achieving their personal and professional objectives.