It strikes me that the primary material that you're working with is language. And this is a line of work that requires mastery of language. I've had students take my course for whom English is not their first language or even some who worked in taxonomies when it's not their firstlanguage. They obviously have to be very, very fluent in the language that they're doing the taxonomy. There's a difference between creating a taxonomy and managing a taxonomy. These language structures evolve over time. So as part of what I do always develop governance plan, documentation, guidance of how the taxonomy should be maintained.