Guerilla Testing with Usability Cafe

Video Channel
Please help us to find bad videos. Broken or unappropriated video content?
Surprisingly, up to 85% of core usability problems can be found by observing just 5 people using your application. Conducting quick usability tests at a cafe is very effective, cheap, and doesn't require any special tools.
Customize the questionnaire for your app at and learn why testing with 5 users is enough at /
Subscribe to the Google Developers channel at:
Fpvracer.lt is not the owner of this text/video/image/photo content, the real source of content is Youtube.com and user declared in this page publication as Youtube.com user, if you have any question about video removal, what was shared by open community, please contact Youtube.com directly or report bad/not working video links directly to video owner on Youtube.com. Removed video from Youtube.com will also be removed from here.