Nomadic radio: speech and audio interaction for contextual messaging in nomadic environments
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on human-computer interaction with mobile systems
Communications of the ACM
Examining mobile phone text legibility while walking
CHI '04 Extended Abstracts on Human Factors in Computing Systems
Personal and Ubiquitous Computing
Waypoint navigation with a vibrotactile waist belt
ACM Transactions on Applied Perception (TAP)
Mobile text entry: relationship between walking speed and text input task difficulty
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
Experiments in Mobile User Interface Adaptation for Walking Users
IPC '07 Proceedings of the The 2007 International Conference on Intelligent Pervasive Computing
Android vs Windows Mobile vs Java ME: a comparative study of mobile development environments
Proceedings of the 3rd International Conference on PErvasive Technologies Related to Assistive Environments
How do users find out what's new: a study of change indicators in mobile services
Proceedings of the 15th International Academic MindTrek Conference: Envisioning Future Media Environments
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The usability of mobile services is degraded while moving, since users cannot pay enough attention to the services in such dynamic and complicated mobile environments. Mobile and wearable services should be appropriately designed to handle human factor issues, otherwise fine user experiences cannot be offered. In this paper, we discuss design issues in mobile service development from a human factor point of view, and propose a design framework to overcome the challenges. Our approach provides two interaction modes (i.e. simple interaction mode and normal interaction mode) to mobile services, in order to allow a user to keep using the service without frequent interruptions while moving. Also, a service's events are simplified in order to support several modalities so that a user can be notified in the most suitable way according to the situation. To evaluate the feasibility of our approach in field experiments, we developed a pedestrian navigation service as a part of the framework. The results showed that the simple interaction mode successfully decreased a user's cognitive load to the service. Also, future directions for further improvements are discussed based on comments and feedbacks.