RATA: codeless generation of gesture recognizers

Authors:
Beryl Plimmer;Rachel Blagojevic;Samuel Hsiao-Heng Chang;Paul Schmieder;Jacky Shunjie Zhen
Affiliations:
University of Auckland;University of Auckland;University of Auckland;University of Auckland;University of Auckland
Venue:
BCS-HCI '12 Proceedings of the 26th Annual BCS Interaction Specialist Group Conference on People and Computers
Year:
2012

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Abstract

Touch and stylus sensitive computer displays are widely available. Yet, the development of gesture sets to support these interaction methods continues to be difficult. We present RATA, a tool for interaction designers and software developers to create gesture recognizers for novel and custom gesture sets. Guided by the RATA wizard, the developer: defines their gesture set; collects example gestures; labels them with the support of an auto labeller; and generates the recognizer model file -- no coding or expert knowledge of recognizers is required. Incorporating the recognizer into a program requires just two lines of code. Our evaluations show high user satisfaction and that novice software developers can design a customized gesture set and generate a recognizer in about 20 minutes.