QWERTH: an optimized semi-ambiguous keyboard design

Authors:
Mark D. Dunlop;Naveen Durga;Sunil Motaparti;Prima Dona;Varun Medapuram
Affiliations:
University of Strathclyde, Glasgow, United Kingdom;KeyPoint Technologies, Hyderabad, India;KeyPoint Technologies, Hyderabad, India;KeyPoint Technologies, Hyderabad, India;KeyPoint Technologies, Hyderabad, India
Venue:
MobileHCI '12 Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services companion
Year:
2012

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Abstract

Mobile phone keyboards can be categorized as unambiguous (one key per letter) or ambiguous (multiple letters per key). In this poster we present QWERTH: a semi-ambiguous keyboard for English in which we have grouped keys together that are less likely to cause prediction problems, while keeping some other keys unique. This has allowed us to increase keys to 1/5 screen width instead of 1/10 while maintaining a near-QWERTY layout. A prototype keyboard built on the OpenAdaptxt text entry engine, results from initial user studies and future study plans are discussed.