This is a home for user information related to the International Standard for document modeling using a pattern to describe the structure and content of an XML document. The pattern is specified using a regular tree grammar. RELAX-NG is Part 2 of ISO/IEC 19757 DSDL (Document Schema Definition Languages) http://www.dsdl.org.
Specification documents (from the ISO/IEC page of Freely Available Standards):
ISO/IEC JTC 1/SC 34 home page (current development):
OASIS development project (the precursor to international standardization):
Eric van der Vlist - RELAX NG book.
David Tolpin - incelim takes a Relax NG grammar in XML syntax, expands all includes and externalRefs, and optionally replaces references to text, empty, or notAllowed with the patterns. The result is a 'compiled' schema convenient for distribution.
James Clark's early work home page (the precursor to OASIS development):
http://relaxng.org/ (last updated 2003-09-24)