Concept help - Unit Of Measure
Unit Of Measure - The actual units in which the associated values are measured
Actual units in which the associated values are measured ISO/IEC 11179 - Clause 3.2.138
The units in which the values in a value domain are measured. Adding unit of measure information makes the value more meaningful, especially in instances where a concept can be measured using various units of measure. For example, length or distance may be measured in millimetres, centimetres, inches, metres, feet, kilometres or miles etc.
While units of measure are specifically related to value domains, they are impertive to the formation of well described data elements.