Appendix A: XMLSchemaDataTypes The following diagram shows the type hierarchy defined in the World Wide Web Consortium (W3C) specification Extensible Markup Language (XML) Schema Part 2: Datatypes. These datatypes are used in XML schemas. This specification defines built-in primitive data types, derived data types, and facets. THIS PAGE INTENTIONALLY LEFT BLANK . Language (XML) Schema Part 2: Datatypes. These data types are used in XML schemas. This specification defines built-in primitive data types, derived data types, . Appendix A: XML Schema Data Types The following diagram shows the type hierarchy defined in the