The DV_QUANTITY.property was removed in Release 0.9 as part of “Remove property attribute from Quantity package” ( Jira ) but is still present in the BMM files. It was removed from the current web specifications: RM/latest/data_types.html#_quantity_package RM/latest/data_types.html#_dv_quantity_cla…

There are archetypes published after 2004 that use DV_QUANTITY.property. One of them is openEHR-EHR-OBSERVATION.blood_pressure.v2 . @sebastian.garde Is it possible that CKM is still using this attribute and modelers fill it in? If so, shouldn’t it be removed from the UI? The exporter should probabl…

Hmmm - interesting topic. See this discussion from 2022, which seems to be related. [image] General modeling question for DV_QUANTITY with multiple properties Clinical I was creating some examples for my clinical modeling students, and one example that I wanted to create …

@siljelb may havebetter insight on this topic. From memory Better originally removed ‘property’ from AD to align with the specs but that proved to be difficult for modellers so they reintroduced it.

I’m fine if DV_QUANTITY.property is reintroduced (lets wait for @siljelb and maybe somebody from Better to comment on their experience with this). I’m just pointing out that without it being reintroduced, the archetypes are not valid. Let’s keep this to ADL2. It doesn’t have C_DV_QUANTITY to compli…

Yeah, I’m not sure why we need to remove this? It’s almost certainly not relevant in the data, but it can be useful for at least two separate things: Facilitating selecting units in the modelling tool UI Explaining to people looking at the archetype what this thing is about, which isn’t always obv…

[image] siljelb: I’m not sure why we need to remove this? It was removed in 2004. We need to discuss if it needs to be reintroduced into RM. [image] siljelb: Facilitating selecting units in the modelling tool UI Isn’t this solved with tuples: value matches { DV_QUANTITY[id12] matche…

I agree with @siljelb that this is needed in archetypes for the reasons stated. My view is that current CKM archetypes using the C_DV_QUANTITY profile to constrain DV_QUANTITY are valid as per the profile spec. It may be a bit odd and a stretch but I don’t think that it absolutely must be an exact …

[image] borut.jures: It was removed in 2004. We need to discuss if it needs to be reintroduced into RM. That’s interesting, as I first started looking at openEHR in 2008, and “properties” has been available in tools when using DV_QUANTITY since then. [image] borut.jures: [image] silje…

List of filtered units is a very important “nice to have” for the modelers but it is a tooling feature. It also means “openEHR units list” is not an openEHR maintained list, but a list of each tooling provider (tooling providers can still decide to maintain a common list). Persisting the property i…

Oh I remember this one. IIRC I was doing compliance verification for ehrbase and checking the specs in detail at the same time. I believe the idea of the property is to simplify archetype modeling tools and processes to constraint the units at the UI level, but not at the data level, since that at…

Remove DV_QUANTITY.property attribute in BMM files

Specifications BMM/Expressions

ian.mcnicoll (Ian McNicoll) 9 May 2025 12:54 13

I think that is a perfectly reasonable proposition @borut.jures.

@borut.fabjan - do you have any thoughts on this - can we easily support ‘unit property’ in tooling, without it being recorded explicitly in archetypes?

ADL2 generation appears to be incorrect

Topic		Replies	Views
General modeling question for DV_QUANTITY with multiple properties Clinical	8	627	1 June 2022
PropertyUnitData.xml and conversion information Terminology archetype-designer	4	350	28 February 2024
ADL / OpenEHR IM mismatch Technical (archive)	2	26	5 April 2007
Quantities of arbitrary units in openEHR Technical (archive)	44	305	30 January 2018
Missing "magnitude" for DV_QUANTITY constraint ADL	6	576	31 January 2022
Possible bug: Proportion with no type Clinical archetype	9	250	4 May 2024
Invalid UCUM units in Archetype Designer Archetype Designer archetype , template	12	2621	6 February 2023
Adding to the DV_QUANTITY units options Archetype Designer	67	2527	30 March 2026
Is DV_STATE and it's profile constraint C_DV_STATE used anywhere in the specs? RM	22	1053	10 November 2021
Replacing an archetyped value set - AD and CKM bug? Tool Support archetype , template	6	152	3 March 2025

Remove DV_QUANTITY.property attribute in BMM files

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