<xsd:element minOccurs="0" name="additionalValidationData" >
  <xsd:annotation>
    <xsd:documentation>Additional data needed to validate national identification number, e.g. Polish PESEL needs to be validated against date of birth and gender.</xsd:documentation>
  </xsd:annotation>
  <xsd:complexType>
    <xsd:sequence>
      <xsd:element maxOccurs="unbounded" name="parameter">
        <xsd:complexType>
          <xsd:simpleContent>
            <xsd:extension base="xsd:string">
              <xsd:attribute name="name" type="tns:nameT" use="required"/>
            </xsd:extension>
          </xsd:simpleContent>
        </xsd:complexType>
      </xsd:element>
    </xsd:sequence>
  </xsd:complexType>
</xsd:element>