I have participated in 1 design review at my co-op, and whilst it occurred similarly to what others here have mentioned I think some more specifics would help people understand them a bit better. The one I was in was to review a new pain relieving lotion. due to the way my department functions, it was not exactly the same as the way one functions at a medial device review, but none the less it was still informative. There we representatives from R&D, Marketing, and management. Since this was a later stage review the product was in blank packaging. The review started with talking about the documents and making sure that we were still on track to meet the deadlines. Then we reviewed the actual product. We tested the objective characteristic of did it numb the area it was applied to, but we also tested some subjective things like does it have an appealing scent, is the application a pleasant experience, and does it leave the user feeling like the product is working. Now this is different than a medical device as this is a consume product, but the review was still a good insight into how these function. It also helped to show what marketing and management were looking for in the product and the project as a whole.