Whoa! I love a good 2x2, and the one on the Diataxis home page is great!

Adding a caption here for anyone on a screen-reader, before I give commentary on it:

  * X-axis: "serve our study" vs "serve our work"
  * Y-axis: "practical steps" vs "theoretical knowledge"
  * which gives 4 quadrants: how-to guides, tutorials, explanation, and reference

So I'm joining a new place recently, and it's another one of those "documentation-heavy" places where (of course) every new hire conducts the ceremonial ritual of updating the docs wherever they could use improvement. I really like having this ontology in my head now; I can see it being very useful.

Also, I wonder if the relative distributions of each one could tell you something about the team's health — or even just the kind of work the team does?

For example, between two teams who are both documentation-heavy, what does it means if one team's docbase is 80% tutorials, whereas the other team's is 80% reference guides? It would be fascinating if anyone's already given thought to relative metrics/heuristics like this.