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Usability Metrics Topics

10 Essential Usability Metrics

Jeff Sauro • November 30, 2011

There isn't a usability thermometer to tell you how usable your software or website is. Instead we rely on the impact of good and bad usability to assess the quality of the user experience. Assessing that impact starts by knowing and collecting these 10 metrics.[Read More]

8 Ways to Show Design Changes Improved the User Experience

Jeff Sauro • March 1, 2011

A lot of effort goes into simplifying interactions, reducing bugs and enhancing features. By providing simple quantitative measures of improvements in the user experience you have the data to both justify design efforts and get a better idea of what methods worked.[Read More]

25 Resources for Measuring Usability

Jeff Sauro • December 21, 2010

Links to 25 books, papers, chapters and questionnaires on measuring usability.[Read More]

What metrics are collected in usability tests?

Jeff Sauro • November 23, 2010

Survey results show completion rates and UI problems dominate formative usability tests. Task time data is more common in summative usability tests, yet still prevalent in formative tests. At least half of respondents use some form of usability questionnaire in both types of tests.[Read More]

What really happens in the usability lab?

Jeff Sauro • October 27, 2010

In a usability test we're taught to be neutral observers of user behavior. But what actually happens in practice? A review of 14 usability testing sessions from seven companies suggests that what we preach is a bit different than what we practice.[Read More]

Want to Improve Usability? Count Calories

Jeff Sauro • June 30, 2010

It is tempting to just find, fix and forget usability problems. It is tempting to skip one milkshake and think you're losing weight. Systematic measuring uncovers patterns and helps prevent major problems.[Read More]