This is the "What is Usability?" page of the "Usability on a Budget" guide.
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Usability on a Budget   Tags: design, information_architecture, usability, use, web_site_evaluation  

An online guide to accompany the 2010 Enriching Scholarship workshop, "Usability on a Budget," presented by Shevon Desai, Kat Hagedorn, and Ken Varnum.
Last Updated: Jul 13, 2011 URL: http://guides.lib.umich.edu/content.php?pid=110089 Print Guide

What is Usability? Print Page
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Definitions

"Usability is a quality attribute that assesses how easy user interfaces are to use.The word 'usability' also refers to methods for improving ease-of-use during the design process." Jakob Nielsen, usability guru

 


Nielsen goes on to define usability using five quality components:

  • learnability 
  • efficiency
  • memorability
  • errors
  • satisfaction

Imagine trying to read this while you're flying by on the highway at 60 miles an hour.

Other definitions

 

"[Usability refers to] the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use." - ISO 9241-11


"Usability means that the people who use the product can do so quickly and easily to accomplish their own tasks." - Steve Krug, Don't Make Me Think, 2000, p. 5 


More definitions of usability from the Usability Professionals' Association

 

Shevon's Profile

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Shevon Desai
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Subject Guide

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Ken Varnum
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300C Hatcher Graduate Library
913 S. University Ave
Ann Arbor, MI 48109-1190
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