Which resource is a non-persisted resource used to pass information into and back from an operation. It has no other use, and there is no RESTful endpoint associated with it?

Which resource is a non-persisted resource used to pass information into and back from an operation. It has no other use, and there is no RESTful endpoint associated with it?

• A. Parameters
• B. Basic
• C. Binary
• D. DocumentReference

Answer: (A)

In FHIR, the resource meant for carrying data into and out of an operation is the Parameters resource. It’s designed to be transient and non-persisted, with no durable identity or dedicated storage in the server. When you invoke an operation, you package the input values as a Parameters resource, naming each parameter and using appropriate data types. The server then processes the operation and returns results in another Parameters resource, again not stored as a persistent resource. This makes it ideal for ephemeral message exchange during the operation. Other resources like Basic, Binary, or DocumentReference are real, stored resources with RESTful endpoints and persistence semantics, so they don’t fit the requirement of a non-persisted message carrier used solely for operation inputs and outputs.

In FHIR, the resource meant for carrying data into and out of an operation is the Parameters resource. It’s designed to be transient and non-persisted, with no durable identity or dedicated storage in the server. When you invoke an operation, you package the input values as a Parameters resource, naming each parameter and using appropriate data types. The server then processes the operation and returns results in another Parameters resource, again not stored as a persistent resource. This makes it ideal for ephemeral message exchange during the operation. Other resources like Basic, Binary, or DocumentReference are real, stored resources with RESTful endpoints and persistence semantics, so they don’t fit the requirement of a non-persisted message carrier used solely for operation inputs and outputs.