Talk Synopsis - Usability is an essential factor that plays a vital role in success of a product. When usability standards are met, the product's interface is transparent,  and the cognitive load caused by the interface is low. This allows the  user to focus on the task itself, be less error prone, make decisions  quickly, and feel more satisfied at the end of the task. Measuring usability helps  designers pinpoint what isn’t working and provides an opportunity to  improve the work. By implementing qualitative usability metrics and the  usability framework throughout your testing, you’ll better understand  what needs to be done to create an emotionally engaging application.