| Implementation Guide | Project Page | Scenarios Included | Implementation Guide Status | Reference Implementation | Number of Connectathons | Sponsoring Workgroup | Project Number | PSS | Zulip Stream |
|---|
| Security for Scalable Registration, Authentication, and Authorization | FAST: Scalable Registration, Authentication, and Authorization for FHIR Ecosystem Participants | B2B B2C User Authentication | STU 1 Published | Under development FAST Security/UDAP Implementations | 14 | Security
| 1689 | FHIR at Scale (FAST): Scalable Registration, Authentication, and Authorization for FHIR Ecosystem Participants PSS | FHIR at Scale Taskforce (FAST): Security |
| Hybrid/ Intermediary Exchange | FHIR at Scale (FAST): Exchange with or without Intermediaries | Passive intermediaries | STU 1 Published | TBD | 8 | FHIR-I WorkGroup Home | 1653 | PSS for FAST Exchange Metadata Using RESTful Headers | FHIR at Scale (FAST): Exchange with/without intermediaries |
| Interoperable Digital Identity and Patient Matching | Interoperable Digital Identity and Patient Matching |
| STU 1 Published | https://github.com/HL7-FAST/identity-matching/tree/hapi-matching Hosted: | 9 | Patient Administration | 1717 | Patient Matching PSS | FHIR at Scale Taskforce (FAST): Identity |
National Directory of Healthcare Providers & Services (NDH) | National Healthcare Directory | The National Directory Exchange IG; Query IG, and Attestation & Verification IG have been combined into a single IG | September 2023 STU 1 Ballot | https://github.com/hl7-fast/national-directory/tree/hapi Hosted: | 11 | Patient Administration | 1690 | National Healthcare Directory PSS | National Directory |
