<xs:complexType name="CharacteristicGroupsType">
  <xs:annotation>
    <xs:documentation>The CharacteristicGroupsType defines a list of characteristic groups.</xs:documentation>
  </xs:annotation>
  <xs:sequence>
    <xs:element ref="CharacteristicGroup" maxOccurs="unbounded">
      <xs:annotation>
        <xs:documentation>Each CharacteristicGroup element gives information about a characteristic group. It is a way of relating characteristics based on common association. e.g. manufacturing, process, print callout.</xs:documentation>
      </xs:annotation>
    </xs:element>
  </xs:sequence>
  <xs:attribute name="n" type="NaturalType" use="required">
    <xs:annotation>
      <xs:documentation>The required n attribute is the number of characteristic groups in this set.</xs:documentation>
    </xs:annotation>
  </xs:attribute>
</xs:complexType>

<xs:attribute name="n" type="NaturalType" use="required">
  <xs:annotation>
    <xs:documentation>The required n attribute is the number of characteristic groups in this set.</xs:documentation>
  </xs:annotation>
</xs:attribute>