April 2016
Intermediate to advanced
325 pages
9h 24m
English
Content preview from Designed for Use, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
How Many Testers
Since you don’t have to schedule testers in a guerilla-style usability test, you can test with as many people as you need to until you feel you have a solid answer to your question. Three to five people is usually a good idea, but even a single tester often yields useful insights into potential issues with your design.