System Usability Scale (SUS)
A questionnaire used to measure the usability of designs
Why it matters
Its magic is standardisation: ten fixed questions, four decades of benchmarks, a score comparable across products, teams and years. It will not tell you what is broken — it tells you, credibly, how bad.
The numbers
- 10 questions, one 0-100 score
- 68 — the benchmark average
Related terms
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