XMLd
XMLd is a term used for a family of XML-based data description and processing technologies designed to describe, validate, and transform XML data within distributed systems. In typical implementations, XMLd combines a declarative schema language with a lightweight runtime engine, enabling developers to specify data structures, constraints, and transformation rules in a consistent XML syntax and then apply those rules to XML documents at ingest, storage, or exchange points.
Core concepts in XMLd include the notion of a data schema, which defines element types, attributes, cardinality,
XMLd is often used in data integration, API gateways, and data pipelines where robust validation and flexible
Adoption varies by organization, and implementations may differ in syntax and feature sets. Some projects emphasize