 
       
          Usability testing uncovered fixible usability issues that made a huge difference to the user experience.
 
          User interviews and affinity mapping were used to ensure that my designs were firmly grounded with the user in mind.
 
          I used mental models and user flows to make sure the features of my app were rooted in well researched behaviour of real people.
 
          I refined my IA using the results of open card sorting, conducted using OptimalSort.