Which of the following is NOT among the five things a FHIR implementer will need to resolve during implementation?

• A. How will information be exchanged
• B. How will terminology bindings be used
• C. How will information be secured
• D. How will information be stored at rest

Answer: (D)

Interoperability planning in FHIR centers on how data moves between systems, how standard terminology is applied, and how access and privacy are protected during exchange. The key decisions involve the mechanics of information exchange (such as which APIs or messaging patterns to use), how terminology bindings are applied (ensuring consistent coding with value sets and code systems), and how security is implemented to protect data in transit and during access. Storing information at rest, while important for overall data governance and IT infrastructure, is not a FHIR-specific implementation decision about interoperability. It’s a general IT concern about data storage choices rather than a distinct interoperability consideration dictated by the FHIR standard. Therefore, storage at rest is not among the five FHIR-specific implementation questions.