[oXygen-user] ISO Schematron validation?

SyncRO -- What component does oXygen use to validate against ISO Schematron schemas? Does oNVDL do that? Does jing? Have you used the XSLT implementation of ISO Schematron? Have you written something of your own? I'm curious becase (as you may have read on TEI-L), I think TEI should be using and recommending ISO Schematron as opposed to Schematron 1.x, but it is *awfully* convenient to be able to use jing for validation.