Fitts’s Law in UX Design

Fitts’s Law was introduced by a psychologist Paul Fitts in 1954. The law has a big importance in human-computer interaction and defines the correlation between a cursor movement or a touch gesture and an interface element.

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practical tips

Practical Tips for Using Fitts’s Law

  • Reduce the distance from one point to the next in UI and make the target object large enough to enable prompt detection and selection of interactive elements without sacrificing accuracy.
  • Make every combination of a checkbox/radio + label as the entirely clickable area.
  • Don’t go overboard with putting elements too close to each other or making it too big. Follow visual balance and hierarchy, give the user a breathing room.
  • Establish a meaningful visual hierarchy in UI elements and content.
  • Appropriate grouping is important in articulating functionality.
  • Provide enough space between elements for error-prevention.
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