<xsd:restriction base="cct:IdentifierType"> <xsd:attribute name="identificationSchemeID" type="xsd:normalizedString" use="optional"/>
<xsd:attribute name="identificationSchemeName" type="xsd:string" use="optional"/>
<xsd:attribute name="identificationSchemeAgencyID" type="xsd:normalizedString" use="optional"/>
<xsd:attribute name="identificationSchemeAgencyName" type="xsd:string" use="optional"/>
<xsd:attribute name="identificationSchemeVersionID" type="xsd:normalizedString" use="optional"/>
<xsd:attribute name="identificationSchemeURI" type="xsd:anyURI" use="optional"/>
<xsd:attribute name="identificationSchemeDataURI" type="xsd:anyURI" use="optional"/>
</xsd:restriction>