Posting this here in case other people find it useful. I am currently trying a new AC.ID system with a slight twist.
My main problem was that I needed to track a number of research projects and courses that I teach, but the PRO.AC.ID format with letters seemed like overkill, particularly since I don’t have tons of personal projects that I need to track. I had been using a PRO.AC.ID system for a while, described here, but I was finding it too tedious to maintain and simply substituting the first number with letters seemed like it wouldn’t solve my problem.
So now what I’ve done is that I’m just using a two-level system with only my projects having an additional third level such as 21.02.W23. 21 is my projects category, 02 is the project ID, and W23 is Workpackage 2, task 3. I am going to come up with a similar three-level structure for my courses and try it out for a while.
Let’s see how it goes.