The average business metrics improvement after a usability redesign is now 83%. Whilst this is substantially less than 6 years ago, the ROI remains high because usability is still cheap to deliver relative to the gains.
Typical business metrics include: Conversion rates, such as sales or lead generation : Traffic numbers, such as page view statistics : User performance, such as the time needed to perform key tasks : Target feature usage, such as the number of users who click a link to crucial information
The reason why ROI has reduced in the last 6 years is because there are fewer horrible websites around now than there were back then. But we all know many sites need to improve – if you have a say in how your business spends it’s web budget you really should think seriously about a usability-led design project.
I’ve taken these statistics from a report by one of the heroes of web design. Jakob Neilsen has influenced design improvements to webites the world over, directly and indirectly through the influence of his books, I still go back to one of his older but very usable books, Designing Web Usability, and his website www.useit.com is a great source for web design insight.