Usability tests check if people can use a product. Duh. But what does "usable" mean? Steve Krug, author of Don't Make Me Think, summed it up: "It really just means making sure that something works well: that a person of average ability and experience can use the thing-whether it's a website, a toaster, or a revolving door - for its intended purpose without getting hopelessly frustrated."
Everything You Ever Wanted To Know About Usability Testing 
Added 6 months ago by Timothée Goguely
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Everything You Ever Wanted To Know About Usability Testing 
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Usability tests check if people can use a product. Duh. But what does "usable" mean? Steve Krug, author of Don't Make Me Think, summed it up: "It really just means making sure that something works well: that a person of average ability and experience can use the thing-whether it's a website, a toaster, or a revolving door - for its intended purpose without getting hopelessly frustrated."
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