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System usability scale 0:40
A 40-second explainer of System usability scale, narrated over the same demo you can try yourself.
Try the interactive System usability scale demo
What this video covers
The system usability scale is a short questionnaire with ten statements rated from strongly disagree to strongly agree. It converts how usable something feels into a single score from 0 to 100. It’s quick, standardised, and surprisingly comparable across very different products.
You answered a few statements and they collapsed into one score on a 0-100 scale. That's the appeal of SUS: a messy felt experience reduced to a figure you can track over time and compare against a known average of about 68. The catch is remembering it's a temperature, not a diagnosis.
