Begin with governance: which office owns the protocol, who may approve a new reference and whether faculties may maintain variants. Record the date of confirmation and the official contact channel so an old answer is not treated as permanent.
Map wearers separately: rector and vice-rectors, deans, professors, honorary-degree recipients, doctoral supervisors, internal and external jury members, doctoral candidates, graduating students and ceremonial officers. Mark required, optional, loaned, personal or not used for each named occasion.
For the garment itself, document front and back construction, sleeve, collar, cloth, lining, colour reference, trim, embroidery, headwear and detachable components. A controlled physical sample is preferable where colour and texture carry identity.
For operations, record annual events, peak simultaneous wearers, active stock by size, location, reservation lead time, issue and return responsibility, cleaning method, loss rate and repair history. This converts tradition into manageable capacity without reducing it to a generic product.
Finally, publish only what the institution permits and what the evidence supports. An internal technical file can be complete while a public atlas remains appropriately cautious about details that are not officially released.