Schematron at the Associated Press

Stuart Myles has a quick slide presentation Schematron and Other Useful Tools at the IPTC Autumn Meeting about how the Associated Press reduced manual checking & QA of incoming iAtom feeds using open source tools.

They convert the incoming iAtom/XHTML to their internal NITF format, which has certain requirements on top of Atom. And the incoming XHTML was sometimes just HTML not WF XML and needed to be tidied up.