Graeme Browning

There is a wide range of display sizes available today. Smartphones have less than 10” screens, while wall displays can span a room’s entire width. Tablets, netbooks, laptops, single monitors, televisions, projectors, and multi-monitor configurations fill the range in between these extremes. To make software run on any display size, it has to be capable of adapting dynamically to the...

We present a study comparing differences in visual scale due to perspective (distance) and software scaling. The software scaling method corrected for quantization of the input device and resolution to ensure equivalency in the scaling methods. Results indicate that while perspective yields consistent performance across different scale factors, software scaling did not.

We examine the effects of screen size and target movement on selection performance using an experiment based on Fitts’ law. Results indicate that small screen sizes reduced pointing throughput by around 20%. Target movement also negatively impacted performance, but the performance difference between static and moving targets was lower on small screen sizes.