On May 24, 2008, at 8:54 PM, Robert Hoekman Jr wrote:
"Usability equals predictability."
As in, if you can accurately predict what's going to happen next in an
interaction, it's because the action you're taking is
understandable, clear,
logical, makes you feel confident, etc. If you can accurately
predict what's
next, the interaction has high usability. If you can't accurately
predict
what's next, the interaction has low usability.
Shoot holes in that statement.
Usability is a scale from extreme frustration to extreme delight.
Delight, by definition, is something that is surprisingly good.
By being surprised, it has to exceed the bounds of predictability.
Therefore, Usability != predictability.
And remember: Every time you try to define usability, God kills a
kitten.
Please, remember the kittens.
Jared
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