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HL7 FHIR is the choice of HSPC for interoperable system communication. For an application or system to be HSPC compatible it must use FHIR to exchange data. FHIR describes an object model, a messaging payload, and an API. FHIR users Resources resources to model clinical and administrative concepts, Profiles profiles for semantic interoperability, and RESTful HTTP networking protocol. FHIR modeling efforts try to model the most common 80% of real-world object models as representations in FHIR Resources. To accommodate the less common 20%, FHIR Resources offer extension mechanisms.
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