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Health Level 7 (HL7) provides a framework and standards for the exchange, integration, sharing, and retrieval of electronic health information.
The HL7 Services-Aware Enterprise Architecture Framework (SAIF) provides consistency between all HL7 artifacts, and enables a standardized approach to Enterprise Architecture (EA) development and implementation, and a way to measure the consistency.
SAIF is a way of thinking about producing specifications that explicitly describe the governance, conformance, compliance, and behavioral semantics that are needed to achieve computable semantic working interoperability. The intended information transmission technology might use a messaging, document exchange, or services approach.
SAIF is the framework that is required to rationalize HL7 as a standard. SAIF is an architecture for achieving interoperability, but it is not a whole-solution design for enterprise architecture management.