4. Based on your findings edit and update your instructions. After you do so they should be more understandable and easier to follow for your intended audience. In many cases it is appropriate or even necessary to conduct one or more rounds of usability tests as you perfect your instructions. More testing may prove beneficial in discovering problems that were overlooked the first round of testing or because the problems may have been masked by original complications. If time permits, be sure to run as many rounds of usability testing as needed.