All our current values for <person>/@role have now been documented in the ODD file, and I've also put a system in place for reading that data out of the ODD file at transform time (using <xsl:document>) and using it to create the web display text. This will be handy in future, and it's a good approach because it encourages us to do more documentation, in more detail, in the ODD file, with the sense that it's going to be made public. The ODD file is now in the db, of course, which is also probably good. It might make sense to put the rng file there as well, and make both forms of documentation available from the site.