Failures of User Testing Think of a sophisticated program that you use regularly, a program that comes with a slick manual and has clearly been designed for usability -- perhaps your default word processor or spreadsheet program. Identify the interface bug in that program that you find most annoying. Since you are a user and you have this problem, user testing should have identified it -- isn't that right? So, why is the problem still there? Your project should be DETAILED and no less than 3 pages.