XSD schema specialization module coding requirements

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.

2.1.4.3.8.2.1 General element type declaration coding requirements
Structural and element domain vocabulary modules must reflect the same coding requirements for element type declarations.
2.1.4.3.8.2.2 Structural specialization coding requirements
An XSD structural module declares a top-level map or topic type, implemented as a pair of XSD documents, one that defines groups used to integrate and override the type and one that defines the element types specific to the type.
2.1.4.3.8.2.3 Attribute domain coding requirements

Parent topic: 2.1.4.3.8 Specialization module coding requirements

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2.1.4.3.8.2 XSD schema specialization module coding requirements