XSD schema specialization module coding requirements

Darwin Information Typing Architecture (DITA) Version 1.2

To be extensible and backward compatible, DITA requires that an XSD implementation of structural and domain specialization modules conform to well-defined implementation (coding) requirements.

These design patterns implement the specialization architecture with the capabilities and within the limitations of the XML Schema grammar. They are the coding requirements for structural specializations, domain specializations, and attribute domain specializations.