Thoughts and exercises, in which you predict how different users will interact with your website in a given situation in order to complete a given goal
Let you understand what your future users will look for when trying to complete tasks on your site
Provides visual representation of your problem when a user fails to perform the task to solve later
Allows you to test your site structure before it’s fully developed and isolate problems before they become problems
They should outline the Who, What, Where, When, Why and How?