한 손을 이용한 내비게이션의 한글 문자 입력 인터페이스에 대한 사용자 실험

Drivers normally operate an in-vehicle navigation system with their one hand or even one fingertip. When they type a korean word, they should use a korean virtual keyboard. There're several virtual korean keyboard systems, such as Qwerty, Alphabetic, Narat-gul and Chun-ji-in-systems. An in-vehicle navigation should offer one of these system 0; sometimes several systems. In this study drivers were tested with 4 different types of korean input systems and through this test, the question, "Which virtual keyboard is the most effective and reliable to the drivers?", will be answered.