On my way home from Vienna I started drafting a little homily about how to update your old ODD to a pure new shiny one. The source is in github under TEI/Documentation/pureODD/purifyDoc.xml CETEICEAN renders it reasonably well (modulo a couple of gotchas on which I've posted issues) at http://teic.github.io/TCW/purifyDoc.html, but the nicest reading version is at http://teic.github.io/TCW/purifyDoc_static.html I'd very much welcome Council's comments before exposing it further. Seems to me we need to promote ODD a bit more, and this might be a good start. I'm also working on an "ODD for beginners" guide, but this one is aimed at old lags who made an ODD back in the day and are interested in getting up to speed with its new possibilities. So much so (I now realise) that I've completely forgotten to mention the existence of Roma in it. But I'll stop tweaking for now anent your comments...