An empirical comparison of pie vs. linear menus
CHI '88 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Use of mobile appointment scheduling devices
CHI '04 Extended Abstracts on Human Factors in Computing Systems
Shift: a technique for operating pen-based interfaces using touch
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Barrier pointing: using physical edges to assist target acquisition on mobile device touch screens
Proceedings of the 9th international ACM SIGACCESS conference on Computers and accessibility
Cursorless interaction techniques for wearable and mobile computing
Cursorless interaction techniques for wearable and mobile computing
Quickdraw: the impact of mobility and on-body placement on device access time
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A cross culture study on phone carrying and physical personalization
UI-HCII'07 Proceedings of the 2nd international conference on Usability and internationalization
Abracadabra: wireless, high-precision, and unpowered finger input for very small mobile devices
Proceedings of the 22nd annual ACM symposium on User interface software and technology
A haptic wristwatch for eyes-free interactions
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Emerging Input Technologies for Always-Available Mobile Interaction
Foundations and Trends in Human-Computer Interaction
Watchit: simple gestures and eyes-free interaction for wristwatches and bracelets
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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The wristwatch is a device that is quick to access, but is currently under-utilized as a platform for interaction. We investigate interaction on a circular touchscreen wristwatch, empirically determining the error rate for variously-sized buttons placed around the rim. We consider three types of inter-target movements, and derive a mathematical model for error rate given a movement type and angular and radial button widths.