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Evaluation and Modeling of User Performance for Pointing and Scrolling Tasks on Handheld Devices Using Tilt Sensor

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2 Author(s)
Sad, H.H. ; VALORIA - Centre de Rech., Univ. de Bretagne-Sud, Vannes ; Poirier, F.

We experimentally test the effectiveness and reliability of the accelerometer-based tilt sensor as an interaction device for pointing and scrolling tasks on handheld devices. The touch screen and stylus based interfaces on these devices requires using two hands: one for holding the device and the other for driving the stylus. In our experiment, the participants use only one hand to interact with the same interfaces. In addition to freeing one hand, using the tilt sensor doesn't hide a part of the device's tiny screen. Two different interfaces are used in the experiment: one for testing pointing and targeting without scrolling and the other is for testing them with scrolling. Using the experiment results we developed a model for the prediction of the execution time for both tasks.

Published in:

Advances in Computer-Human Interactions, 2009. ACHI '09. Second International Conferences on

Date of Conference:

1-7 Feb. 2009