<complexType name="ParameterValueType">
  <complexContent>
    <extension base="gml:AbstractGeneralParameterValueType">
      <sequence>
        <choice>
          <element ref="gml:value"/>
          <element ref="gml:dmsAngleValue"/>
          <element ref="gml:stringValue"/>
          <element ref="gml:integerValue"/>
          <element ref="gml:booleanValue"/>
          <element ref="gml:valueList"/>
          <element ref="gml:integerValueList"/>
          <element ref="gml:valueFile"/>
        </choice>
        <element ref="gml:operationParameter"/>
      </sequence>
    </extension>
  </complexContent>
</complexType>