A taxonomy of number entry error
BCS-HCI '11 Proceedings of the 25th BCS Conference on Human-Computer Interaction
Differential formal analysis: evaluating safer 5-key number entry user interface designs
Proceedings of the 4th ACM SIGCHI symposium on Engineering interactive computing systems
Towards safer number entry in interactive medical systems
Proceedings of the 4th ACM SIGCHI symposium on Engineering interactive computing systems
Safer "5-key" number entry user interfaces using differential formal analysis
BCS-HCI '12 Proceedings of the 26th Annual BCS Interaction Specialist Group Conference on People and Computers
Reasons to question seven segment displays
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Applying theorem discovery to automatically find and check usability heuristics
Proceedings of the 5th ACM SIGCHI symposium on Engineering interactive computing systems
Using differential formal analysis for dependable number entry
Proceedings of the 5th ACM SIGCHI symposium on Engineering interactive computing systems
Using Checksums to Detect Number Entry Error
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An error tolerant memory aid for reduced cognitive load in number copying tasks
UAHCI'13 Proceedings of the 7th international conference on Universal Access in Human-Computer Interaction: user and context diversity - Volume 2
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A significant amount of interaction involves number entry. The purpose of any number entry interface is to accurately select or set a numeric value. There are two main styles of number entry interfaces found on medical devices: serial interfaces like the ubiquitous 12-key numeric keypad, and incremental interfaces that use a knob or a pair of keys to increase or decrease numbers. We report an experiment that investigates the effect of interface design on error detection in number entry. The initial findings show that the incremental interface produces more accurate inputs than the serial interface, and the magnitude of errors suggests that the incremental interface could reduce the death rate relative to the numeric keypad.