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Improve the interoperability of healthcare systems through shared implementable clinical information models and APIs.

(A single curated collection.)


  • Create a shared repository of detailed clinical information models
  • Using an approved formalism
  • Archetype Definition Language (ADL)
  • Archetype Modeling Language (AML)
  • Based on a common set of base data types
  • With formal bindings of the models to standard coded terminologies
  • Repository is open to everyone and models are licensed free for use at no cost

Models will support multiple contexts:

  • EHR data storage and retrieval using standard APIs
  • Message payload and service payload
  • Decision logic (queries of EHR data)
  • Clinical trials data (clinical research)
  • Quality measures
  • Normalization of data for secondary use
  • Creation of data entry screens (like SDC)
  • Capture of coding output from NLP

Work Products and Contributions to HL7 Processes

  • Reference Information Model
  • Shared repository of models
    • One or more examples of instance data will be created for each model
    • showing both proper and improper use
    • Models shall specify a single preferred unit of measure (unit normalization)
    • Models can support inclusion of processing knowledge (default values)
  • Tools/compilers/transformers to create representations of the models to support software developers need (joint work)
  • Tracking and documentation of the use of the models and the experience gained in using the models

Formal Relationships With Other HL7 Groups

  • FHIR
  • Patient Care
  • Clinical Decision Support
  • Structured Documents
  • Vocabulary
  • Clinical Interoperability Council
  • Service Oriented Architecture
  • Templates
  • Terminology Authority

Working Group Meeting - Pilot Functionality

Weekly Meetings


User Profile

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Facilitator - Vocabulary

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