Large and close elements are easier to interact with.

<aside> ℹ️ Fitts’ law states that the amount of time required for a person to move a pointer (e.g., mouse cursor) to a target area is a function of the distance to the target divided by the size of the target. Thus, the longer the distance and the smaller the target’s size, the longer it takes

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In 1954, psychologist Paul Fitts discovered that the time it takes to reach a target depends on how far away it is and how big it is. The law he came up with says that fast movements to small targets often lead to more mistakes because of the trade-off between speed and accuracy. Different versions of Fitts' law all follow this basic idea.

Fitts' law is a big deal in user experience and interface design. For instance, it's why buttons on mobile devices are usually made larger—they're easier to tap. Also, keeping the distance between what a user is doing and the buttons they need as short as possible helps.

https://www.youtube.com/watch?v=M-9FbUJk6tI

Fitts' law applies to quick pointing movements, not continuous ones like drawing. It's crucial for designing visual interfaces or any system where you point with a finger or a mouse. We use it to figure out how big interactive things should be and to spot design issues.

Following this law has led to successful features like quick menus, reducing how far you move your mouse and saving time. But long menus slow users down and make actions harder.

Key points

  1. Make touch targets big enough to select accurately.
  2. Space out touch targets well.
  3. Place touch targets where they're easy to reach in the interface.

Resources

What is Fitts’ Law?

Fitts's Law

Fitts's Law and Its Applications in UX

Fitts’ Law In The Touch Era

Fitts’s Law, Laws of UX


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