Originality & Prior-Art Comparison
Computable differentiation of the HITC FHIR methodology from established FHIR base capabilities
Mechanism Comparison
The table below maps each established FHIR mechanism to its usage within this project and documents the specific contribution or extension that distinguishes this work from standard FHIR base capabilities.
| Established FHIR Mechanism | Usage in This Project | Contribution |
|---|---|---|
| StructureDefinition | Constrains FHIR resources for clinical data exchange | Forms cross-format canonical model set (35 profiles) |
| StructureMap | Instance-level transformation between source and target | Composes into a documented two-phase mapping pipeline with ConceptMap-driven semantic reconciliation |
| ConceptMap | Declares terminology relationships | Bridges structural mapping and semantic reconciliation with confidence/reviewer metadata |
| Observation | Represents clinical measurements | Repurposed to express computable exchange-quality metrics (6 dimensions) |
| Provenance | Records resource origin and transformation history | Extends to record resource-level transformation lineage with Merkle-root tamper evidence |
| Merkle Tree | Integrity verification of resource bundles | Linked to Provenance transformation records for auditable data quality assertions |
| OperationDefinition | Declares custom FHIR operations | Establishes bundle validation and federated summary contracts for exchange governance |
Conclusion
"The contribution lies in the particular computable combination, constraint architecture, workflow, and application of established FHIR mechanisms—not in claiming invention of the underlying standards."
— HITC FHIR-Native Interoperability Framework · Prior-Art & Originality Analysis