Glossary
Memorability
What is memorability?
Memorability is how easily users can re-establish proficiency with a product after a period of not using it. A memorable interface is one that returning users can pick up again without relearning.
How it works
Memorability concerns the return to a previously learned interface after a period of nonuse. To assess retention, establish prior proficiency, define the interval away, and measure performance on return. Comparing only unrelated new and returning users can mix memory with differences in experience and ability.
Applied example
A payroll team could measure how readily staff resume a monthly task, then evaluate revised labels and grouping across comparable return visits. Can people find the payroll task again, or do they have to work out the interface from scratch each month?
Why it matters
For an annual tax return or a monthly payroll task, ease of return matters as much as ease of first use. A familiar structure and clear labels give returning users something to recognize.
Evidence note: Jakob Nielsen: Measure return performance in relation to prior learning and the interval away.