Information technology — Document Schema Definition Languages (DSDL) — Part 3: Rule-based validation using Schematron
信息技术.文档模式定义语言(DSDL).第3部分:使用Schematron的基于规则的验证
This document specifies Schematron, a schema language for XML. This document establishes requirements for Schematron schemas and specifies when an XML document matches the patterns specified by a Schematron schema. Schematron uses query languages such as XPath for writing assertions.