SV: Modeling generic concepts, considerations for querying

Lars Morgan Karlsen lmk at
Tue Sep 26 03:45:03 EDT 2017


I prefer modelling with specialized and small archetypes, this way I may choose to query across templates (contains [openEHR.EHR.OBSERVATION.whatever.v1]) or ask for the template/specific composition if the context is important.

So, your model method 1 does not exclude using queries method 2, but choosing modelling method 2 makes queries model 1 harder in my opinion. For this reason, I prefer model 1.

Best regards

Vennlig hilsen
Lars Morgan Karlsen

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Fra: openEHR-clinical [mailto:openehr-clinical-bounces at] På vegne av Pablo Pazos
Sendt: tirsdag 26. september 2017 03:52
Til: For openEHR clinical discussions <openehr-clinical at>
Emne: Modeling generic concepts, considerations for querying

Hi all,

I'm working with the clinical synopsis archetype, using it to model very open psychotherapy notes. The difference of that archetype from, for instance, blood pressure, triage, problem/diagnosis, is these archetypes are more or less very specific concepts, while synopsis might be used in many contexts, by different specialties, to save different kinds of data. The synopsis itself is a very generic concept.

Considering querying for a synopsis, I think queries should consider the context, not only the archetype id. For instance if I want the psychotherapy notes instead of other kinds of clinical synopsis, some extra data should be given in the query.

I can see two ways of doing this, with more 1. specific archetypes or 2. using templates to filter the query results. 1. means the synopsis archetype might  be specialized to synopsis-psychotherapy, so queries can use that new archetype id. 2. at the template level using the synopsis archetype, and the template is for psychotherapy. This implies the template id should be used on the query as context/filter.

What alternative do clinical modelers see as more correct?

I like specializing archetypes because we can keep queries simple, but we might end up with a lot of archetypes. Using templates makes queries more complex, but we don't need more archetypes for specializations.


PS: please let me know if this doesn't make sense :)

Ing. Pablo Pazos Gutiérrez
e: pablo.pazos at<mailto:pablo.pazos at>
p: +598 99 043 145
skype: cabolabs

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