Schematron

Schematron is a rule-based tool used to validate the structure and content of XML documents. It allows developers to define specific criteria or constraints that the XML data must meet, ensuring data accuracy and consistency. Unlike traditional validation methods that focus on data format, Schematron uses customizable rules written in XML itself, enabling complex checks such as cross-references or conditional requirements. It is often used in data exchange, publishing, and standard compliance to verify that XML files adhere to business or technical standards. Overall, Schematron provides a flexible way to enforce detailed validation rules on XML data.