just as a technical note, the proper regex for including

openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*\.v0, openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*\.v1 and openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*\.v2.




to allow any version, just leave the version id part off entirely.

Note that different major versions of an archetype are technically different archetypes - i.e. they contain some breaking change. So whether allowing any major version of an archetype in a slot is a good default probably needs to be thought about carefully.

- thomas

On 18/12/2018 11:56, Bakke, Silje Ljosland wrote:


Sebastian Garde and I had a brainstorm a while ago about how to handle inclusion of archetypes in SLOTs (either CLUSTERs within ENTRY archetypes, or ENTRY archetypes within COMPOSITIONs or SECTIONs). At the moment this has to be noted explicitly (whether because of tooling or the specifications, I don’t know), so that in order to include for example all historical versions and specialisations of the Body Mass Index archetype in a COMPOSITION or SECTION, I have to include both openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*\.v0, openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*\.v1 and openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*\.v2. If we ever make a v3 BMI archetype, this will then need to be added. This is a hassle when modelling archetypes in the first place, and it’s an even worse problem for governing them over time.

Based on the discussion I had with Sebastian, and with the kind help of some regex geeks on Twitter (you know who you are 😉), I propose one of the following as the default syntax for including any version of a given archetype in a SLOT:

 1. An explicit regex for the version number, for example
 2. Leaving out entirely the version part of the expression, for
    example openEHR-EHR-OBSERVATION\.body_mass_index(-[a-zA-Z0-9_]+)*

I think it should still be /possible/ to include a specific version of the archetype, but that this should not be the default behaviour of the tools.

I don’t particularly care if one of these two suggestions, or an entirely different solution, is adopted, but this issue has to be decided and implemented soon.

Kind regards,
*Silje Ljosland Bakke*


Information Architect, RN

Coordinator, National Editorial Board for Archetypes
Nasjonal IKT HF, Norway

Tel. +47 40203298

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Thomas Beale
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