Hello Wang It depends on the relationship. INSTRUCTION and OBSERVATION are separate entities because they map to two completely different things in reality. Is the INSTRUCTION an integral part of the OBSERVATION?
If you really want to maintain some sort of relationship between these two then you could use a LINK (see www.openehr.org/releases/1.0.2/architecture/rm/common_im.pdf) But they would still have to be stored separately. If these two are related within the context of a specific operation / examination / consultation or other process, then it would be better to create a template that brings these two separate archetypes together with any additional information you might need to capture. Hope this helps All the best Athanasios Anastasiou On 11/09/2014 02:41, Li Wang wrote: > Hi, > > I'm try to understand how to model relationship between archetypes. For > example, there are two archetypes in CKM, > > openEHR-EHR-INSTRUCTION.request-lab_test.v1 and > openEHR-EHR-OBSERVATION.lab_test.v1 > > My question is, how to express the relationship that > openEHR-EHR-OBSERVATION.lab_test.v1 relates to > openEHR-EHR-INSTRUCTION.request-lab_test.v1? > > I tried possible methods: > 1. Add an attribute in openEHR-EHR-OBSERVATION.lab_test.v1 referring to > uid of openEHR-EHR-INSTRUCTION.request-lab_test.v1. > 2. Use archetype slots. But I think archetype slots are not allowed > between Entry based archetypes, is that correct? > 3. Define a new Section archetype as container and put both > openEHR-EHR-INSTRUCTION.request-lab_test.v1 and > openEHR-EHR-OBSERVATION.lab_test.v1 in it. > > Which is correct? And is there any better method? > > Thanks! > > Kind regards, > Wang Li > > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical at lists.openehr.org > http://lists.openehr.org/mailman/listinfo/openehr-technical_lists.openehr.org >
