The Internationalization Tag Set 1.0 – A W3C Recommendation
The Internationalization Tag Set (ITS) version 1.0 has just been published as a W3C Recommendation. You can read the W3C press release.
ITS is a set of attributes and elements designed to help in the internationalization and localization of XML material. It can be used externally to the documents (a bit like the "DTD Settings" file in Trados), and it can be integrated within the XML documents themselves.
The ITS 1.0 Specification can be found here: www.w3.org/TR/its
You can find extensive examples, descriptions and links to implementations of ITS on the ITS Working Group page: www.w3.org/International/its.
The next step for the Working Group is the publishing of the "Best Practices for XML Internationalization" which is currently a Working Draft.