I’ve been wondering about how to retain flexibility w/ regards the folder structure after implementing the JD system. I’m just building my index at the moment before putting it into practice, and I imagine things might need to be rearranged at some point. Merging or splitting areas/categories, discarding an area and moving any remaining contents to different areas, etc. For example, what if 20-29 Area X becomes redundant at some point, do the areas behind it shift up (30-39 now becomes 20-29)?
Also, design software that relies on linking to files in specific locations (After Effects, Indesign, etc) might have a bad time keeping up with folder name changes.