자동차 내 정보기기의 사용자 인터랙션 개선을 위한 3-상태 모델의 적용

다국어 초록 (Multilingual Abstract)

Background: In-Vehicle Information Systems are shifting to mobile-based platform which brings seamless user experience of smartphone. The mobile UI uses a touch screen as an input device, and the touch UI is known to have a problem in use in an automobile. In this paper, we propose the improvement method of existing problems to use mobile UI as IVIS input device and propose a new user interaction through prototype to implement it.
Methods: We have proposed a transition to 3-state model by separating selection and execution of 2-state model of touch UI by applying Buxtons 3-state model. In order to implement this, we developed two types of character input environment of Android device as prototypes. The user test was performed by linking the prototypes and the driving simulator as well as normal type of existing device, and the whole test process was photographed with a camcorder.
Result: The newly developed prototype shows that the task time is longer than that of the existing method, but the average duration per task is decreased because the number of eye-off-the-road event increased.
Conclusion: The prototype showed that the average eye-fix time of the manipulation behavior was shorter than that of the conventional touch UI, and the number of input characters per eye-fix time decreased. This shows that it is possible to present a safer use experience in a car by reducing the eye-off-the-road time in the proposed prototype.

참고문헌 (Reference)

1 Wierwille, W. W., "Vision in Vehicles IV" Elsvier Science Publishers B. V 1993

2 Rockwell, T. H., "Vision in Vehicles II" Elsvier Science 1988

3 Klauer, S. G., "The impact of driver inattention on near-crash / crash risk : an analysis using the 100-car naturalistic driving study data" NHTSA 2006

4 Kristoffersen, S., "Making Place to Make IT Work: Empirical Explorations of HCI for Mobile CSCW" ACM Press 1999

5 Buxton, W., "A three state model of graphical input" ElsevierSciencePublishersB.V 1990