The alphaslider: a compact and rapid selector
CHI '94 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the ACM SIGCHI Conference on Human factors in computing systems
Selection from alphabetic and numeric menu trees using a touch screen: breadth, depth, and width
CHI '85 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Personal and Ubiquitous Computing
INTERACT'05 Proceedings of the 2005 IFIP TC13 international conference on Human-Computer Interaction
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Searching for an item in a long ordered list that does not fit the screen is a frequent task when using mobile devices. This paper explores four different interfaces to support blind users in carrying out this task. Two of them are based on the idea of tree-augmentation of a list, proposed by Furnas [3], and differ in their depth versus breadth ratio. The other two interfaces adopt the more traditional technique of list scrolling based respectively on standard multitap and T9 keyboard entry. The paper reports also on the results of a pilot study of the four interfaces conducted on two blind users.