The Fogg Behavior Model shows that three elements must converge at the same moment for a behavior to occur: Motivation, Ability, and Trigger. When a behavior does not occur, at least one of those three elements is missing.

Fogg Behavior Model

More Readings,

The cognitive walkthrough is a usability evaluation method in which one or more evaluators work through a series of tasks and ask a set of questions from the perspective of the user. The focus of the cognitive walkthrough is on understanding the syst...

In research of human subjects, a survey is a list of questions aimed at extracting specific data from a particular group of people. Surveys may be conducted by phone, mail, via the internet, and sometimes face-to-face on busy street corners or in mal...

The act of measuring certain sensitive variables in a system can alter them, and confound the accuracy of the measurement. This principle is based on Heisenberg’s uncertainty principle in physics. Heisenberg’s uncertainty principle states that b...

A content inventory is a collection of data about your content. Unlike the content audit, which is qualitative, the inventory is quantitative. It's a comprehensive list – typically a spreadsheet – of all content assets, ideally across all content...

The placement of elements such that edges line up along common rows or columns, or their bodies along a common center. Alignment The whole point of the alignment principle is that nothing in your slide design should look as if it were pla...

Usability Report, When reporting results from a usability test, you should focus primarily on your findings and recommendations that are differentiated by levels of severity.  Include the pertinent information from the test plan and present just en...