Usability Testing and Severity Ratings (CHI-WEB) -- "I would like to improve the way we report usability test results by introducing a more consistent way to rate the severity of errors that are found during such tests. One of the goals is to try to help determine which ones are of practical significance in the context of our applications and help us prioritize fixes. To this effect, I would like to ask about what criteria you use to rate usability errors?"