What if you attend a course, but you are not required to contribute? Or worse, what if you attend the course, but ended up sitting in the back row catching 40 winks while the presenter spent 3 hours covering a topic you thought you had a firm grip on. What if you snoozed your way through, signed attendance where required, ate the free buffet meal, posed for the group photograph, and left not knowing anything more about your field of study, armed only with a certificate that says you attended?
That certificate is meaningless; and in no ways demonstrates your competency in understanding the subject matter covered during that course.
So, is product certification an accurate reflection on that product’s competency to perform a particular job?