Relax NG

Relax NG is a tool used to define and validate the structure of XML documents. Think of it as a set of rules or a blueprint that specifies how data should be organized, ensuring consistency and correctness. It allows developers to create flexible and readable schemas, making it easier to check if an XML file follows the expected pattern. Relax NG is valued for its simplicity, expressiveness, and ease of use compared to other schema languages, helping maintain data quality across various applications.