Btw, I witness, in an almost daily basis, the power of a shared classification system based on numerical IDs/prefixes.
My parents use a web app based on an old-school text user interface (the vendor translated the original Pascal code to a CGI-based web app). The multiple routines are identified by numbers, (kind of) following a certain organization logic. Routines can optionally be called directly by typing its ID instead of navigating menus.
The team's communication and work-flow naturally organize around this classification method. The vendor's support staff also use the same language. "You can find this in 938, that in 835, and then check the overall status in 104". Repetition + predictability provided by the underlying classification logic quickly imprints those IDs in users' memory.
Such a simple, ellegant system.