Usability Evaluation

There are generally three types of usability evaluation methods: Testing, Inspection, and Inquiry.

In Usability Testing approach, representative users work on typical tasks using the system (or the prototype) and the evaluators use the results to see how the user interface supports the users to do their tasks. Testing methods include the following:

In Usability Inspection approach, usability specialists -- and sometimes software developers, users and other professionals -- examine usability-related aspects of a user interface. Commonly used Inspection methods are:

Here, usability evaluators obtain information about users' likes, dislikes, needs, and understanding of the system by talking to them, observing them using the system in real work (not for the purpose of usability testing), or letting them answer questions verbally or in written form. Inquiry methods include:

Ask usability advisor about recommendations for usability evaluation methods for your project needs.

Extra: find a usability expert near you!

Usability Evaluation & Software Development Cycle. See how different usability evaluation methods can be used at different stages of software development life-cycle.

Cost of Usability Evaluation Methods
Find out how much it costs to run these usability evaluations.
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Google News on Usability

Practical tips for Web and mobile usability tests - The Next Web

Sonos App To Gain Massive Usability Improvements - Zatz Not Funny

Redefining MES Usability: New Version of Werum's PAS-X available - (press release)

7 Controversial Usability Predictions Results - Business 2 Community

Passible password management app passes the usability and security test - AppAdvice

Two Week Delay On Google Webmaster Tools Mobile Usability Report - Search Engine Roundtable

How Can I Improve My Website's Usability? - Business 2 Community

New crash report interface will improve usability and data quality - Crossroads - A Minnesota Transportation Research Blog

New Boston Fire Marine Dock to Suppress Noise, Increase Safety and Usability -

Google to webmasters: fix mobile usability issues, or else... - BizReport

  • This Web site was originally developed when I was a summer intern at the Human Factors group of US WEST, with the help of Pawan Vora.
  • The way to classify usability evaluation methods into testing, inspection, and inquiry, and the description of some techniques, are borrowed and used with permission from the Usability Methods Toolbox by Mr. James Hom.