Comments
The FHIR model is very accessible and easy to grasp which makes it appealing. However, as the above comments reveal, there are a number of inconsistencies in FHIR across resources. As CDS/CQI is increasingly moving towards the core FHIR model as its own logical model, it is important that FHIR achieve stronger structural and semantic consistency across resources if we are to use FHIR as a computable model. Not doing so requires rule/measure authors to introduce unnecessary variations in artifacts to account for these inconsistencies. I would highly recommend that, prior to the May DSTU publication as resources stabilize, FHIR resources be reviewed holistically for such consistency.

Grahame's Comments
well, we do plan to do this, and thanks for the many comments that will help this. Note, though, that FHIR will only be as consistent as real world practice.

Disposition \\Persuasive

Disposition Comment
This is already planned as part of the QA process. Specific areas of non-alignment should be identified to the work groups responsible for the respective resources