although 'month' is not a scientific notion (it's not constant), we do
treat it as a data type or unit in /social date time types/, which is
what we are mostly dealing with, and what the types DvDuration, DvDate
etc correspond to.
For scientific durations, use DvQuantity, and then you have a Real +
units, e.g. 205ms, 89ns, 4.5min etc
So I think it is quite right to standardise these two notions in the RM,
and also if we can, a standard model of 'time specification' which is
the '3 times/day' kind of idea. We still don't have a good solution for
this last one.
- thomas
--
Thomas Beale
Principal, Ars Semantica <http://www.arssemantica.com>
Consultant, ABD Team, Intermountain Healthcare
<https://intermountainhealthcare.org/>
Management Board, Specifications Program Lead, openEHR Foundation
<http://www.openehr.org>
Chartered IT Professional Fellow, BCS, British Computer Society
<http://www.bcs.org/category/6044>
Health IT blog <http://wolandscat.net/> | Culture blog
<http://wolandsothercat.net/>
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