Chapter 17 Fitts’s Law
Usability has very few universally accepted laws. Fitts’s law is one of these few. It basically states that people can hit a target more quickly if the target is bigger or closer to the user’s mouse cursor (on a desktop system). The target could be a screen icon users are trying to click with a mouse cursor or a button they are trying to tap on a touch screen.
The direction of the motion matters. The target object’s size should correspond to the direction of the motion:
This idea seems pretty straightforward, and indeed, ...
Get Designed for Use, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
