Using the Rubric Actively
A rubric is only as useful as the way it's deployed. The worst rubrics are the ones written down and filed away—referenced occasionally when someone asks about standards but not actually used in the work of evaluation.
An active rubric is one you use when evaluating work. Either your own or others'. You read a piece, then you go through each criterion: Does this meet this standard? To what degree? Why? You write feedback that's specific to the rubric. You track over time whether work is improving along the criteria. You adjust the rubric if you realize a criterion isn't capturing what actually matters.
Using the rubric this way does two things. First, it makes your feedback more specific and more useful. Instead of "this proposal could be stronger," you can say "the proposal is strategically sound, but the opening doesn't establish why this problem matters right now, which means a reader might not understand why we should act on it." Second, it calibrates your taste against your standards. You find out where your intuition and your written standards align and where they diverge. That discovery process is itself a form of taste development.