The MeasuredDecimalType defines a SpecifiedDecimalType with two additional optional attributes: meanError and combinedUncertainty. These attributes should either both be used or both be omitted.
<xs:complexType name="MeasuredDecimalType"><xs:annotation><xs:documentation>The MeasuredDecimalType defines a SpecifiedDecimalType with two additional optional attributes: meanError and combinedUncertainty. These attributes should either both be used or both be omitted.</xs:documentation></xs:annotation><xs:simpleContent><xs:extension base="SpecifiedDecimalType"><xs:attribute name="combinedUncertainty" type="NonNegativeDecimalType"><xs:annotation><xs:documentation>The optional combinedUncertainty attribute is a value expressing the combined uncertainty assigned to the SpecifiedDecimalType.</xs:documentation></xs:annotation></xs:attribute><xs:attribute name="meanError" type="NonNegativeDecimalType"><xs:annotation><xs:documentation>The optional meanError attribute is a value expressing the mean error assigned to the SpecifiedDecimalType.</xs:documentation></xs:annotation></xs:attribute></xs:extension></xs:simpleContent></xs:complexType>
<xs:attribute name="combinedUncertainty" type="NonNegativeDecimalType"><xs:annotation><xs:documentation>The optional combinedUncertainty attribute is a value expressing the combined uncertainty assigned to the SpecifiedDecimalType.</xs:documentation></xs:annotation></xs:attribute>
<xs:attribute name="meanError" type="NonNegativeDecimalType"><xs:annotation><xs:documentation>The optional meanError attribute is a value expressing the mean error assigned to the SpecifiedDecimalType.</xs:documentation></xs:annotation></xs:attribute>