And now a quote from Bruce D’Arcus:
Last week at the Access 2005 conference, I told a room full of mostly library people that their XML standards (I was talking about MODS and MADS in particular) are needlessly complex, inflexible, and awkward; that they were not hacker-friendly. I showed them an alternative schema I’ve been working on that is better, cleaner and much more hacker-friendly XML. Modeled on DOAP, this schema also happens to be RDF, and I exploit the basic plumbing of RDF like its linking support (which I explained was much more consistent than the use of xlink in MODS) to yield a data representation that I think may well be close to a perfect balance of simplicity and expressiveness for citation-related metadata.
From XML and RDF.