Although I did not participate in QC where I was the one testing the product or evaluating it, I was the one who had to use the User Requirements Doc. to create process flows that need to be followed by the QC Techs. In my experience, when I toured the QC lab at the company where I worked at, I was pretty impressed with their protocols during audits. Some issues that were known as those involving equipment. If the equipment was malfunctioning, it will be catastrophic for the team, but they were prepared to encounter these type of situations. As to my part, I was in charge of evaluating how the system works, and explain every single outcome that could happen from there, so the QC tech would know what to do to pass an audit or fail it. It was a great learning opportunity for me because I never worked in QC or QA previously.