Glossary
Usability benchmark
What is a usability benchmark?
A usability benchmark measures a product's usability using defined tasks, participants, and methods. It provides a reference for comparing versions, competitors, or results over time. Usability benchmarking is the process of making and comparing these measurements.
How it works
Measures can include task success rate, time on task, errors, and perceived usability. SUS scores or task-level ease ratings answer different questions from observed performance.
Plan the sample for the precision or comparison required. Keep methods comparable and document changes that could affect the result.
Example
A banking team might repeat bill-payment tasks after a redesign. If completion becomes slower, investigate the design alongside differences in participants, devices, tasks, and procedures before assigning a cause.
Why it matters
A benchmark makes progress easier to assess against a clear reference. It can include both observed performance and reported perceptions.