R4 Ballot #1 (Mixed Normative/Trial use) Current Build
This is the FHIR R4 Mixed Normative/Trial Use Ballot #1, and the version for the Cologne Connectathon in May 2018. The current version is R3 . See the ballot introduction for details about the ballot. For a full list of available versions, see the Directory of published versions and Timelines for an explanation of STU and other statuses.
Work Group FHIR Infrastructure Ballot Status : Informative

The Foundation Module is responsible for the overall infrastructure of the FHIR specification. Every implementer works with the content in the foundation module which ever way they use FHIR.

The Foundation Module maintains most of the basic documentation for the FHIR specification. In addition, the Foundation Module includes the following resources:

Foundation Framework

Content Management Resources.

Data Exchange Resources.

  • All the other modules depend on the foundation module
  • The Exchange module builds on the foundation model by defining the recognized methods for exchange of resources
  • The Terminology module provides the formal basis for using Concepts defined in Code Systems in the definitions
  • The Conformance module provides the basis for extending the foundation for national and local use
  • The Security & Privacy provides the linking framework to external standards for security and privacy
  • The Implementation Support module builds on the foundation to provide testing and reference implementations

Much of the foundation module is well advanced through the maturity model process. Specifically, the following parts of the specification:

The focus over the next 18 months or so as the 4th release of FHIR is prepared is to focus on stability and move these artifacts to normative status. However, some parts of the foundation module are not as well explored, and are not as far advanced with regard to their development.