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NHIN Perspectives for the Framework Review Working Group

NHIN Perspectives for the Framework Review Working Group. DRAFT October 22, 2008 Craig Miller. Overview. Understanding NHIN/HITSP Divergence Cornerstones of the NHIN Platform Harmonization Issues Additional NHIN Services for 2009 Longer Term Opportunities.

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NHIN Perspectives for the Framework Review Working Group

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  1. NHIN Perspectives for theFramework Review Working Group DRAFT October 22, 2008 Craig Miller

  2. Overview • Understanding NHIN/HITSP Divergence • Cornerstones of the NHIN Platform • Harmonization Issues • Additional NHIN Services for 2009 • Longer Term Opportunities

  3. Understanding NHIN/HITSP Divergence • Why do significant discrepancies exist between HITSP interoperability specifications and NHIN service specifications? • HL7 v2 (HITSP) vs HL7v3 (NHIN) • MLLP (HITSP) vs Web Services (NHIN) • Standards Specification (HITSP) vs. Service Development (NHIN) • Intra- (HITSP) vs. Inter- (NHIN) domain focus • Gaps in HITSP specifications • Lack of high-level collaboration

  4. Cornerstones of the NHIN platform Web Services (WS-*) PKI (x.509/WS-Security) HL7 v3 Messaging /CDAr2

  5. Some Current Harmonization Issues Subject Discovery (PIX/PDQ) Document Hashing (XDS.b) Population Health

  6. Some Additional NHIN Service Needs for 2009 Data versus Documents Current NHIN specifications focus on document-based information exchanges but many health organizations are data-based (e.g. RDBMS) Expanding Discovery Current NHIN enables discovery of patients and HIEs, but not of other significant entities (providers, PHRs, pharmacies, labs, etc) Messaging Platform Enhancements Need to support reliable messaging for population health and other uses Message targeting (e.g. narrowcast vs broadcast) End to end security Message-level encryption support Federated trust Revocation

  7. Longer Term Opportunities Grid computing Distributed query Presence services Terminology and Ontology Services Semantic mapping Code set transformations

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