The time at the beginning and end of the trial or test increment, and the duration, as a diggs:TimeInterval.
<diggs:timeInterval xmlns:diggs="http://diggsml.org/schemas/3"> <diggs:TimeInterval gml:id="">{1,1}</diggs:TimeInterval> </diggs:timeInterval>
<element name="timeInterval" type="diggs:TimeIntervalPropertyType"> <annotation> <documentation>The time at the beginning and end of the trial or test increment, and the duration, as a diggs:TimeInterval.</documentation> </annotation> </element>