Introduction to Web Usability
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What is Usability?

"Usability (is) the ease with which a user can learn to operate, prepare inputs for, and interpret outputs of a system or component." [IEEE 90]

"The usability of an interface is a measure of the effectiveness, efficiency and satisfaction with which specified users can achieve specified goals in a particular environment with that interface." [ISO 13407]

   
  (Dilbert Cartoon)Dilbert: Your User requirements include four hundred features. Do you realize that no human would be able to use a product with that level of complexity? Dilbert colleague: Good point. I'd better add easy to use to the list.

Jean Foster

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