Stream: clinFHIR
Topic: logical modeller vs Profile
Jayashree Surnar (Aug 07 2017 at 10:09):
hi,
what is the diff b/w logical modler and profile?
Michel Rutten (Aug 07 2017 at 12:17):
Hi @Jayashree Surnar, a classic FHIR profile expresses constraints on another profile, or a core resource/datatype. A logical model defines any "free-form" data structure. Effectively, a logical model has no base profile and the author completely defines all it's elements and element datatypes.
Usually, a logical model is intended to be mapped to one or more concrete FHIR profiles/resources.
David Hay (Aug 07 2017 at 17:39):
Nicely put Michel! Currently I'm using the Logical Model as a 'design step' and then generating the fhir profile automatically - though there are limitations with this approach - it will never be as flexible as building the profile directly as Forge does...
Jayashree Surnar (Aug 08 2017 at 11:53):
thanky you @Michel Rutten , @David Hay
Peter Jordan (Sep 15 2017 at 19:12):
When adding a Backbone Element to a Logical Model in CF, would it be possible to select from a list of the specializations of Backbone Element in the spec and then extend, or constrain, that element?
David Hay (Sep 15 2017 at 19:13):
Not quite sure what you mean - can you give an example?
Peter Jordan (Sep 15 2017 at 19:17):
I've created a LM based on the Adverse Event resource, but would like to add the AllergyIntolerance.reaction backbone element and then manipulate the model to eliminate duplicated elements. I can add an element of type backbone but, unlike when adding a resource to a model, I can't select from the existing instances (backbone elements in this case) in the spec (e.g. reaction).
David Hay (Sep 15 2017 at 19:22):
so you're after a single model that draws from different resource types?
David Hay (Sep 15 2017 at 19:23):
That won't become a profile...
David Hay (Sep 15 2017 at 19:23):
Or are you seeing it as a way to quickly create elements?
Peter Jordan (Sep 15 2017 at 19:26):
Just a pure LM at this stage.
David Hay (Sep 15 2017 at 19:28):
But pulling from different resource types to help build it?
Peter Jordan (Sep 15 2017 at 19:29):
Yes, resources & backbone elements. Really like the idea of doing this in a FHIR-enabled tool like CF.
David Hay (Sep 15 2017 at 19:30):
Will add it to the list. You have just assigned yourself as tester :)
Last updated: Apr 12 2022 at 19:14 UTC
