Description There are SI units of measure for the units of measure. STEP (ISO/DIS 10303-41. S96ff) is supported with regard to SI units by seven basic units (length, mass, time, electric_current, thermodynamic_temperature, amount_of_substance, luminous_intensity). These basic units are realized by means of attributes.
Example <sw-unit>
<long-name>Meter per second</long-name>
<short-name>mps</short-name>
<si-unit length-expo = "1" time-expo = "-1"></si-unit>
<sw-unit-display></sw-unit-display>
</sw-unit>