We have working with CATIA and Smarteam more than 10 years. Now we migrate all our documents to Windchill. Documents under Smarteam are named by a sequence mask (for example for a product we have A00175266.CATProduct in the vault). When we save a CATIA document in Smarteam the CATIA header and the windows MRU change from the filename to the number followed by the Smarteam revision (see picture below).
The idea is to have the same comportment with WGM because the number (30101000101 -> part code ERP) is more explicit for the users than the filename (A00175266.CATProduct).