Principles of FHIR

FHIR was developed after implementation experience with the other HL7 standards, and built to copy the web, particularly RESTful interfaces. FHIR is organised around the concept of "Resources" and defines many types of resources that describe the healthcare space. All resources have references to other resources, extensions, and a human readable XHTML display. FHIR has an open license, a focus on implementation, and a formal maturity process linked to implementation outcome.