System usability scale

Measuring usability with the System Usability Scale

A quick and dirty questionnaire for measuing usability


3 minute read

System Usability Scale

Usability and user experience are difficult to measure quantitatively. Often, measuring improvements (or regressions) in usability is primarily achieved through monitoring a range of interrelated metrics such as average session length, goal completion rates, defects raised or churn. These metrics, however, can all be influenced both positively and negatively by many factors - not just usability. One way of achieving direct feedback on the usability of a product, and thus being able to more directly measure it, is to use a questionnaire.