# ISO/IEC 19757-2:2003 — Withdrawn and superseded ISO standards For ISO/IEC 19757-2:2003, item title is Information technology — Document Schema Definition Language (DSDL) — Part 2: Regular-grammar-based validation — RELAX NG; status code is 9599; successor is ISO/IEC 19757-2:2008; withdrawn / published date is 2003-11-28, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 19757-2:2003 _(verified: appears in the quote below)_ - **Item title:** Information technology — Document Schema Definition Language (DSDL) — Part 2: Regular-grammar-based validation — RELAX NG _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 19757-2:2008 - **Withdrawn / published date:** 2003-11-28 _(verified: appears in the quote below)_ ## What the source says > 37605,IS,,ISO/IEC 19757-2:2003,Information technology — Document Schema Definition Language (DSDL) — Part 2: Regular-grammar-based validation — RELAX NG,Technologies de l'information — Langage de définition de schéma de documents (DSDL) — Partie 2: Validation de grammaire orientée courante — RELAX NG,2003-11-28,1,['35.240.30'],ISO/IEC JTC 1/SC 34,9599,,[52348],['en'],34,"
ISO/IEC 19757-2:2003 specifies RELAX NG, a schema language for XML. A RELAX NG schema specifies a pattern for the structure and content of an XML document. The pattern is specified by using a regular tree grammar. A RELAX NG schema is itself an XML document.
ISO/IEC 19757-2:2003 specifies: