<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="IVL_MO">
      <xs:complexContent>
         <xs:extension base="SXCM_MO">
            <xs:choice minOccurs="0">
               <xs:sequence>
                  <xs:element maxOccurs="1" minOccurs="1" name="low" type="IVXB_MO">
                     <xs:annotation>
                        <xs:documentation>
                           The low limit of the interval.
                        </xs:documentation>
                     </xs:annotation>
                  </xs:element>
                  <xs:choice minOccurs="0">
                     <xs:element maxOccurs="1" minOccurs="0" name="width" type="MO">
                        <xs:annotation>
                           <xs:documentation>
                           The difference between high and low boundary. The
                           purpose of distinguishing a width property is to
                           handle all cases of incomplete information
                           symmetrically. In any interval representation only
                           two of the three properties high, low, and width need
                           to be stated and the third can be derived.
                        </xs:documentation>
                        </xs:annotation>
                     </xs:element>
                     <xs:element maxOccurs="1" minOccurs="0" name="high" type="IVXB_MO">
                        <xs:annotation>
                           <xs:documentation>
                           The high limit of the interval.
                        </xs:documentation>
                        </xs:annotation>
                     </xs:element>
                  </xs:choice>
               </xs:sequence>
               <xs:element maxOccurs="1" minOccurs="1" name="high" type="IVXB_MO">
                  <xs:annotation>
                     <xs:documentation />
                  </xs:annotation>
               </xs:element>
               <xs:sequence>
                  <xs:element maxOccurs="1" minOccurs="1" name="width" type="MO">
                     <xs:annotation>
                        <xs:documentation>
                           The difference between high and low boundary. The
                           purpose of distinguishing a width property is to
                           handle all cases of incomplete information
                           symmetrically. In any interval representation only
                           two of the three properties high, low, and width need
                           to be stated and the third can be derived.
                        </xs:documentation>
                     </xs:annotation>
                  </xs:element>
                  <xs:element maxOccurs="1" minOccurs="0" name="high" type="IVXB_MO">
                     <xs:annotation>
                        <xs:documentation>
                           The high limit of the interval.
                        </xs:documentation>
                     </xs:annotation>
                  </xs:element>
               </xs:sequence>
               <xs:sequence>
                  <xs:element maxOccurs="1" minOccurs="1" name="center" type="MO">
                     <xs:annotation>
                        <xs:documentation>
                           The arithmetic mean of the interval (low plus high
                           divided by 2). The purpose of distinguishing the center
                           as a semantic property is for conversions of intervals
                           from and to point values.
                        </xs:documentation>
                     </xs:annotation>
                  </xs:element>
                  <xs:element maxOccurs="1" minOccurs="0" name="width" type="MO">
                     <xs:annotation>
                        <xs:documentation>
                           The difference between high and low boundary. The
                           purpose of distinguishing a width property is to
                           handle all cases of incomplete information
                           symmetrically. In any interval representation only
                           two of the three properties high, low, and width need
                           to be stated and the third can be derived.
                        </xs:documentation>
                     </xs:annotation>
                  </xs:element>
               </xs:sequence>
            </xs:choice>
         </xs:extension>
      </xs:complexContent>
   </xs:complexType>