Woodpecker Software Testing

Dec 31, 2025 · User Experience Design

Understanding the System Usability Scale (SUS): 10‑Question Survey and Scoring Method

The System Usability Scale (SUS) is a 10‑item Likert questionnaire that takes 1–2 minutes to complete, converts responses into a 0–100 composite score using a simple transformation and multiplication, and interprets the result with defined usability ranges and an industry average of about 68.