I do have to agree with most of what you have said about design verification, we all know that design verification is pretty much to whatever it was written in the DID document it must be verified to make sure that it meets the input with the output, and to be able to do this each of the input that was in the DID document the engineer have to figure out a test that can prove the output that was written, if it different well it must be noted, or figure out if the test was done wrong and do the test again but also needs to be noted. When it comes to design validation, like Dr. Simon said in the lecture, it has to do with clinical trial, animal testing. This is the part where I have to disagree with you not only the nurse or the doctors are the one that do the design validation, also engineers who are working in the clinical trial can perform this test to be able to make sure that is valid.