A research project to find out how our new designs were received by the users before we started to develop it. It also gave us some really good insights into the mental model. We used prototypes to run the tests and recorded in multiple ways. We rented a usability room with a black mirror so that stakeholders could participate as well without disturbing our interviewees.
The room we used was equipped with multiple cameras which made it possible to record the reaction of the user while recording the device.
We used a nifty camera that recorded hand motions as well. There are many solutions for recording screens of the phone but you don't really get a good understanding how user is pointing, tapping on the device. This method removes those obstacles