FHIR Proficiency Practice Exam 2026 – Complete Study Resource

Implicit rules are rule sets that aren’t publicly published or standardized. They’re shared only with a limited set of trading partners, so the content and how to interpret it remain understood within that private network. This is why such rules restrict understanding to a specific group rather than to everyone.

In contrast, explicit rules are documented and openly available, enabling any partner who follows them to interpret the data consistently. Public rules are accessible to all, and “trading rules” is a broad term that doesn’t inherently imply restricted access. The idea here is that private, negotiated interpretations live as implicit rules, keeping the data readable only by the involved parties.