We match affiliation text from publications to ROR records. So for instance, when a UMR has a ROR record, we are able to match to the text to that ROR record. Then based on the lineage structure in ROR, users are able to pull reports either on the lower level affiliations independently or on the universities that they role up to (i.e., institution vs. institution lineage).
The real challenge for us has been that ROR records aren't yet completely fleshed out for the entire French research system (i.e., some universities have created records for all their reporting affiliations, while other have not). The good news is that ROR is working closely with ABES and MESR to get the entire French research system mapped out well in ROR. And so we're hoping for even more accurate representation of the French system as this work progresses.