Is the measure class actually needed?
Opened this issue · 3 comments
GordianDziwis commented
HajoRijgersberg commented
No, because om:hasUnit lists all the possible units for a quantity, and one and the same quantity (instance) could have different values expressed with different units. So that is why - unfortunately - we need something like om:Measure.
My hope and ideal would be that in the future there will number datatypes with units. Not only in ontologies or OM, but in IT in general.
Thanx for your issue again and the very clear diagram!
HajoRijgersberg commented
B.t.w., I fully agree with you that ease of querying, so to say, is an important criterion, which I am giving ever more importance in the design.
HajoRijgersberg commented
For OM 3.0 I am investigating whether these custom number-unit datatypes could be constructed.