4 ms·

I guess all those experts citing Fitts' Law have to find a new toy when touchscreens get the predominant means to interact with the UI.

• jerf 15y ago
  According to Wikipedia (for what that's worth), Fitts' law has been established to apply just fine to touch interfaces (third paragraph under http://en.wikipedia.org/wiki/Fitts%27s_law#Success_and_implications http://en.wikipedia.org/wiki/Fitts%27s_law#Success_and_impli... ).
• ugh 15y ago
  I’m curious why you seem to think that Fitt’s law doesn’t apply to touch interfaces. Sure, certain concepts can’t be translated 1:1 (like infinite sized targets at screen edges) but even those have somewhat similar counterparts in touch interfaces (screen edges are also special places with larger targets in touch interfaces).
  • decklin 15y ago
    How are screen edges no longer infinite? If I ask you to tap something and drag it off an edge of the screen, you don't have to aim.
    • ugh 15y ago
      Your finger won’t be stopped by the screen edge.
• decklin 15y ago
  So, it takes the same amount of time to tap something on a touchscreen, no matter what size it is and how far away it is from your finger, then?