The DAF Implementation Guide is not a profile, but rather a US National Extension describing use of several profiles in the ITI domain. -- The Data Access Framework (DAF) Document Metadata Based Access Implementation Guide, describes United States implementation guidelines for specific transactions and content modules defined in the IHE IT Infrastructure (ITI) Technical Framework to meet United States ONC S&I Frameworks requirements for the Data Access Framework. This Implementation Guide was developed as a joint collaboration of ONC S&I Frameworks and IHE USA.

First defined:  DAF Implementation Guide, Sep 2015, PCC US National Extension