<xsd:schema targetNamespace="http://schemas.openxmlformats.org/officeDocument/2006/characteristics" elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.openxmlformats.org/officeDocument/2006/characteristics">
  <xsd:complexType name="CT_AdditionalCharacteristics">
    <xsd:sequence>
      <xsd:element name="characteristic" type="CT_Characteristic" minOccurs="0" maxOccurs="unbounded">
        <xsd:annotation>
          <xsd:documentation>Single Characteristic</xsd:documentation>
        </xsd:annotation>
      </xsd:element>
    </xsd:sequence>
  </xsd:complexType>
  <xsd:complexType name="CT_Characteristic">
    <xsd:attribute name="name" type="xsd:string" use="required">
      <xsd:annotation>
        <xsd:documentation>Name of Characteristic</xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
    <xsd:attribute name="relation" type="ST_Relation" use="required">
      <xsd:annotation>
        <xsd:documentation>Relationship of Value to Name</xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
    <xsd:attribute name="val" type="xsd:string" use="required">
      <xsd:annotation>
        <xsd:documentation>Characteristic Value</xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
    <xsd:attribute name="vocabulary" type="xsd:anyURI" use="optional">
      <xsd:annotation>
        <xsd:documentation>Characteristic Grammar</xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
  </xsd:complexType>
  <xsd:simpleType name="ST_Relation">
    <xsd:annotation>
      <xsd:documentation>Characteristic Relationship Types</xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:string">
      <xsd:enumeration value="ge">
        <xsd:annotation>
          <xsd:documentation>Greater Than or Equal to</xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="le">
        <xsd:annotation>
          <xsd:documentation>Less Than or Equal To</xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="gt">
        <xsd:annotation>
          <xsd:documentation>Greater Than</xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="lt">
        <xsd:annotation>
          <xsd:documentation>Less Than</xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="eq">
        <xsd:annotation>
          <xsd:documentation>Equal To</xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:element name="additionalCharacteristics" type="CT_AdditionalCharacteristics">
    <xsd:annotation>
      <xsd:documentation>Set of Additional Characteristics</xsd:documentation>
    </xsd:annotation>
  </xsd:element>
</xsd:schema>

• CT_AdditionalCharacteristics
• CT_Characteristic

• additionalCharacteristics

• ST_Relation