The image below has a series of projects (letters) tracked in terms of value vs risk. Each project is shown as a pair of nested boxes, with the inner box broken into four quadrants. I have never encountered this and would like to know if anyone has seen/used this or something similar as part of their best practices. If YES then additional questions are:
- What does the outer box represent?
- What do the four quadrants of the inner box represent?
- What is the proper terminology/nomenclature for this kind of representation?
EDIT - The graph comes from a gov't of Canada slideshow on benefits realization. The complete presentation is accessible online at http://www.tbs-sct.gc.ca/emf-cag/outcome-resultat/benefits-avantages/page01-eng.asp.
EDIT # 2 - Edited title and content of question to clarify that I would be happy knowing whether or not this is a typical way of displaying information.