Which module describes when information is exchanged in FHIR?

• A. Terminology Module
• B. Security and Privacy Module
• C. Metadata Module
• D. Workflow Module

Answer: (D)

In FHIR, the timing and sequencing of information moving between systems is handled by the Workflow area. This focuses on how care processes unfold: what events trigger actions, the order of steps, task creation and completion, and how information is handed off from one system to another as a patient moves through a clinical episode. For example, a workflow defines when a lab order is sent to the lab system, when results are produced, and how those results are routed back to the clinician’s record. The other areas focus on different aspects: terminology is about standard vocabularies and coding; security and privacy cover who can access and protect data; metadata concerns information about the data itself (profiles, tags, versioning). So the timing and orchestration of exchanges—that’s the domain of the Workflow module.