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People spent more than twice as much time looking at the left side of the page as they do the right:
* Left half of screen: 69% of viewing time
* Right half of screen: 30% of viewing time
The remaining 1% of viewing time was spent to the right of the initially-visible 1,024 pixels. Such information is visible only after horizontal scrolling, and the minute amount of attention it attracts confirms the guideline to avoid horizontal scrolling.
Wed, 07/04/2010 - 08:47
If you've ever wrangled a user interface, you've probably heard of Fitts' Law. It's pretty simple -- the larger an item is, and the closer it is to your cursor, the easier it is to click on. Kevin Hale put together a great visual summary of Fitts' Law, so rather than over-explain it, I'll refer you there.
The short version of Fitts' law, to save you all that tedious reading, is this:
* Put commonly accessed UI elements on the edges of the screen. Because the cursor automatically stops at the edges, they will be easier to click on.
* Make clickable areas as large as you can. Larger targets are easier to click on.
Wed, 24/03/2010 - 13:14