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Control centric approach in designing scrolling and zooming user interfaces
Authors:Parisa Eslambolchilar  Roderick Murray-Smith  
Affiliation:aComputer Science Department, Swansea University, Swansea SA2 8PP, UK;bDepartment of Computing Science, Glasgow University, Glasgow G12 8QQ, Scotland;cHamilton Institute, NUI Maynooth, Co. Kildare, Ireland
Abstract:The dynamic systems approach to the design of continuous interaction interfaces allows the designer to use simulations, and analytical tools to analyse the behaviour and stability of the controlled system alone and when it is coupled with a manual control model of user behaviour. This approach also helps designers to calibrate and tune the parameters of the system before the actual implementation, and in response to user feedback. In this work we provide a dynamic systems interpretation of the coupling of internal states involved in speed-dependent automatic zooming, and test our implementation on a text browser on a Pocket PC instrumented with a tilt sensor. We illustrate simulated and experimental results of the use of the proposed coupled navigation and zooming interface using tilt and touch screen input.
Keywords:Human–  computer interaction  Dynamics  Continuous interaction  Tilt input  Mobile devices  Zooming/scrolling user interfaces
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