Hi Silje,
See here
<https://specifications.openehr.org/releases/RM/latest/data_types.html#_ratios_and_proportions>.
But I think the % case may have been there since early 2000s and either
% was not in UCUM, or perhaps it was, but we did not realise it. So
ideally we should change the documentation to obsolete it in DV_PROPORTION.
- thomas
On 04/01/2019 20:40, Bakke, Silje Ljosland wrote:
In that case, I don't understand the use case for the 'percent' and 'unitary'
variants of the DV_PROPORTION data type. What are they for?
Regards,
Silje
-----Original Message-----
From: openEHR-technical <openehr-technical-boun...@lists.openehr.org> On Behalf
Of Thomas Beale
Sent: Friday, January 4, 2019 8:38 PM
To: openehr-technical@lists.openehr.org
Subject: Re: DV_PROPORTION vs DV_QUANTITY for %
On 03/01/2019 08:37, David Moner wrote:
I think DV_QUANTITY is the option here. Someone could argue that % is
not a proper unit, but it is, both in UCUM and SNOMED CT.
DV_PROPORTION should be only used when you want to maintain the
numerator and denominator explicitly separated, as a fraction, which
should not be the case with percentages. But it is true that the
definition of the type attribute in the specification is a bit
misleading: "Indicates semantic type of proportion, including percent,
unitary etc."
David is right on all counts - use DV_QUANTITY, but we should fix that line in
the specification. Can someone raise a PR on that please.
- thomas
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Thomas Beale
Principal, Ars Semantica <http://www.arssemantica.com>
Consultant, ABD Project, 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/> | The Objective Stance
<https://theobjectivestance.net/>
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