fitts

fitts' law describes the relationship between movement time and target distance and size.

according to fitts' law, larger targets are easier to select.

fitts' law is fundamental to user interface design.

researchers have validated fitts' law across many tasks.

the index of difficulty in fitts' law predicts movement time.

designers apply fitts' law to optimize button placement.

fitts' law explains why corner targets are efficient.

touch interfaces benefit from principles of fitts' law.

fitts' law has been extended to multi-dimensional pointing.

the original fitts' law study used a tapping task.

modern hci research still relies on fitts' law.

fitts' law helps predict user performance metrics.

the shannon formulation improved fitts' law accuracy.

fitts' law applies to both serial and parallel movements.