The UnitValue describes a combination of value and the related unit. These kind of representation helps to compare different values with the same unit or to convert different units.
Use– For every numeric value belonging to a concrete unit.
Not use– For not numeric values. – For values without unit.
|value||Number||X||A value belonging to a concrete unit and a special record.|
|unit||String||X||The unit for the recorded value.|
|valueText||String||X||X||In case of inseparability of value and unit and for representation.|
If a value is not recorded in a structured way, only the valueText is used. Else the value and unit is recorded and the combination of both is recorded in the valueText.