This week we discussed emotions and expressions in usability testing and what they mean to the testers. Although hard to quantify, they can still be useful to observe, and some software is beginning to record emotions as well. Just to bring it into the discussion, I talked about reasons not to record faces, which included privacy concerns and biases. Personally, I think it is good to see faces, but the article I shared gave some food for thought.
The assignment was about choosing a quantitative measurement and focusing on that for testing Chipotle.com. I focused on error rate, saying that if you found the errors users made, it would help everything else and improve satisfaction. Of course, some errors are purely user generated, but some can be reduced with a good interface design. The trick is knowing what category each goes into.