System Usability Scale
Score
The System Usability Scale (SUS) is a reliable tool for measuring the usability of a product. It provides a quick, global view of subjective assessments of usability, covering a variety of aspects from effectiveness to efficiency and satisfaction.
Formula
SUS Questionnaire Scoring
Example
SUS scores range from 0 to 100, with higher scores indicating better usability. An SUS score above 68 is considered above average.