I have to say I'm with you on this one, Paul.

I do acknowledge that different people have different styles of learning and working, and for some people memorizing all the nuances of normalization theory may genuinely help them in their work.

However, the fact that Hugo admits to having to Google this one might suggest that this question is a little on the esoteric side, and that you could be quite good at your job without knowing or caring about the answer!