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Fabian Hennecke, Alexander De Luca, Ngo Dieu Huong Nguyen, Sebastian Boring, Andreas Butz
Investigating Pointing Tasks across Angularly Coupled Display Areas
In Proceedings of the 14th IFIP TC13 Conference on Human-Computer Interaction (INTERACT 2013). Cape Town, South Africa, September 2-6 2013. (bib)

Pointing tasks are a crucial part of todays graphical user interfaces. They are well understood for flat displays and most prominently are modeled through Fitts Law. For novel displays (e.g., curved displays with multi-purpose areas), however, it remains unclear whether such models for predicting user performance still hold in particular when pointing is performed across differently oriented areas. To answer this question, we conducted an experiment on an angularly coupled display the Curve with two input conditions: direct touch and indirect mouse pointer. Our findings show that the target position affects overall pointing speed and offset in both conditions. However, we also found that Fitts Law can in fact still be used to predict performance as on flat displays. Our results help designers to optimize user interfaces on angularly coupled displays when pointing tasks are involved.