[aakresearch]

This was once posted on HN: https://news.ycombinator.com/item?id=21289832, so give credit there, if you want.

It is like periodic table for chemical elements, singularly the one best thing about documentation that I ever read. It helped me immensely to structure the way I am thinking about documents. It starts with clear delineation of four quadrants: tutorials, how-tos, explanation and reference, and everything just clicks from there. I found that my problems usually due to subconsciously mixing them up - and setting the boundaries is very useful.