Dear all, (01)
Please allow me to make a remark about measures (or mangnitudes) and
quantities. I have seen several times that a measure (or magnitude),
such as "3 kg", is regarded as a quantity. However, a quantity is a
metrological aspect of a phenomenon, such as "the mass of my table"
("mass" is a metrological aspect, "table" is a phenomenon). There can
exist a statement about the mass of my table, such as "the mass of my
table = 3 kg". What we also often see is that a measure (or magnitude)
is the value of a quanitty, such as "the mass of my table" ---value--->
"3 kg".
A measure (or magnitude) has a numerical value and a reference (a unit
of measure or a measurement scale). (02)
I mention this only to avoid possible future misunderstandings. I'll
come back to this issue in later responses on older emails. (03)
Best regards, Hajo (04)
_________________________________________________________________
Message Archives: http://ontolog.cim3.net/forum/uom-ontology-std/
Subscribe: mailto:uom-ontology-std-join@xxxxxxxxxxxxxxxx
Config/Unsubscribe: http://ontolog.cim3.net/mailman/listinfo/uom-ontology-std/
Shared Files: http://ontolog.cim3.net/file/work/UoM/
Wiki: http://ontolog.cim3.net/cgi-bin/wiki.pl?UoM_Ontology_Standard (05)
|