The required n attribute is the number of characteristic measurements in this set.
Source
<xs:element name="CharacteristicMeasurements" type="CharacteristicMeasurementsType"><xs:annotation><xs:documentation>The CharacteristicMeasurements element is a list of characteristic measurements.</xs:documentation></xs:annotation></xs:element>
The required n attribute is the number of characteristic group statuses in this set.
Source
<xs:element name="CharacteristicGroupStatuses" type="CharacteristicGroupStatusesType" minOccurs="0"><xs:annotation><xs:documentation>The optional CharacteristicGroupStatuses element is a list of characteristic group statuses.</xs:documentation></xs:annotation></xs:element>
<xs:complexType name="MeasuredCharacteristicsType"><xs:annotation><xs:documentation>The MeasuredCharacteristicsType contains a list of characteristic measurements and optionally the status of characteristic group evaluations.</xs:documentation></xs:annotation><xs:sequence><xs:element name="CharacteristicMeasurements" type="CharacteristicMeasurementsType"><xs:annotation><xs:documentation>The CharacteristicMeasurements element is a list of characteristic measurements.</xs:documentation></xs:annotation></xs:element><xs:element name="CharacteristicGroupStatuses" type="CharacteristicGroupStatusesType" minOccurs="0"><xs:annotation><xs:documentation>The optional CharacteristicGroupStatuses element is a list of characteristic group statuses.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:complexType>