Local terminology does not appear in instances. They are defined in schemas to provide additional context for the properties and types defined there.
The snippet below is an extract from Core 4.0:
<xs:schema>
<xs:annotation>
<xs:documentation>NIEM Core.</xs:documentation>
<xs:appinfo>
<appinfo:LocalTerm term="SSN" literal="Social Security Number"/>
<appinfo:LocalTerm term="ISO" literal="International Organization for Standardization"/>
<appinfo:LocalTerm term="Alpha3" definition="Three-letter"/>
<appinfo:LocalTerm term="Alpha2" definition="Two-letter"/>
</xs:appinfo>
</xs:annotation>
</xs:schema>
This example also includes the namespace definition. A namespace’s definition and local terminology are defined in the same schema-level xs:annotation block.
This template shows how to define a term with its literal translation:
<xs:appinfo>
<appinfo:LocalTerm term="TERM" literal="LITERAL"/>
</xs:appinfo>
This template shows how to define a term with its definition:
<xs:appinfo>
<appinfo:LocalTerm term="TERM" definition="DEFINITION"/>
</xs:appinfo>