I have never encountered that pyramid before Hingehead. It is interesting and I have a few comments.
1) Data is at the core, and is labeled "objective facts". I agree with this completely. Objective facts are the foundation of knowledge and the basis of good decisions.
2) Anecdotes aren't mentioned in this pyramid. I think there is a good reason for this. The term "experience" is the closest you get... but experience is not the same as anecdotal evidence.
3) I like the term "measurable efficiency". Getting objective feedback on your ideas is invaluable.
4) I don't like the idea that Information is "A message meant to change receiver's perception." Maybe this is phrased poorly, but it sounds manipulative.
I change my perception when there are facts (i.e. objective data) or a logically valid argument that contradicts my pre-conceived notions. I love it when this happens, this is for me the best way to learn.
To me, knowledge should be objective... and my present understanding of knowledge should be open to questioning (I hope Thomas doesn't read this
). The problem with anecdotes is that they support your existing bias and have the effect of closing your mind to contradictory evidence.