[entee]

I work with FHIR extensively and find the standard to be decent but not great. Perhaps my biggest complaint is around naming strategies.

"What date did this event occur?", can be assertedDate or effectiveDateTime or performedDateTime or any number of things based on resources.

In the old versions it was even hard to know "What's the patient ID associated with this resource?", sometimes it was "patient" sometimes it was "subject". This has gotten better in STU3, and improvements have also been made to the way practitioners are identified as well.

I think there's a ton of irreducible complexity, but there are also common themes and common parts of medicine that should form the foundation of the API. It seems that instead of thinking, "What are the real commonalities here? Lets make them flexible enough to handle 90% of cases, but with a standard interface for extension." HL7 started from a current cumbersome standard and shoehorned it in.

I really am optimistic though, it's getting better all the time and FHIR is actually remarkably extensible to handle corner cases. I really hope it becomes the standard moving forward, especially as it smooths out the rough edges.

[nradov]

If you see a naming discrepancy then just go ahead and submit a tracker to fix it. None of the resources are normative yet and in my experience the work groups are quite willing to fix this kind of stuff as long as you provide sufficient justification. You might need to explain why the change is needed and ensure it doesn't get delayed. Don't sit back and expect someone else to identify and fix the problems; most implementers only work with a few specific resources so they might not even notice inconsistencies.

https://gforge.hl7.org/gf/project/fhir/tracker/?action=Track...