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Return on Investment for Usability

Through an extensive study, Jakob Nielsen found that usability redesigns increase usability by 135% on average, while intranets improve slightly less.

Based on data from 863 design projects and findings from other studies, Nielsen concludes that current best practice call for devoting about 10% of a project's budget to usability.

He also found that the cost of usability doesn't increase linearly with project size. A project that's ten times bigger, for example, typically requires only four times more usability spending.

Links:

  • The article Return on Investment for Usability Open link in new window

Henrik Olsen - January 08, 2003 - via Jakob Nielsen's Alertbox Announcement List

See also: Cost-justification and ROI (27) 

 

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