When working on business problems, users flitter among sites, alternating visits to different service genres. No single website defines the user experience on its own.| Nielsen Norman Group
The average business metrics improvement after a usability redesign is now 83%. This is substantially less than 6 years ago, but ROI remains high because usability is still cheap relative to gains.| Nielsen Norman Group
The average mid-sized company could gain $5 million per year in employee productivity by improving its intranet design to the top quartile level of a cross-company intranet usability study. The return on investment? One thousand percent or more.| Nielsen Norman Group
In addition to being expensive, collecting usability metrics interferes with the goal of gathering qualitative insights to drive design decisions. As a compromise, you can measure users' ability to complete tasks. Success rates are easy to understand and represent the UX bottom line.| Nielsen Norman Group