Reference Architecture
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Reference Architecture, published by WHO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-ra/ and changes regularly. See the Directory of published versions

: Interoperability Layer - XML Representation

Active as of 2025-07-04

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<ActorDefinition xmlns="http://hl7.org/fhir">
  <id value="InteroperabilityLayer"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: ActorDefinition InteroperabilityLayer</b></p><a name="InteroperabilityLayer"> </a><a name="hcInteroperabilityLayer"> </a><table class="grid"><tr><td><b>Actor: Interoperability Layer </b></td><td>Interoperability Layer</td><td>Type: system </td></tr><tr><td colspan="3"/></tr></table></div>
  </text>
  <url value="http://smart.who.int/ra/ActorDefinition/InteroperabilityLayer"/>
  <version value="0.2.0"/>
  <name value="Interoperability Layer"/>
  <title value="Interoperability Layer"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2025-07-04T19:36:33+00:00"/>
  <publisher value="WHO"/>
  <contact>
    <name value="WHO"/>
    <telecom>
      <system value="url"/>
      <value value="http://who.int"/>
    </telecom>
  </contact>
  <description
               value="A component that enables communication of services across domains and organizations, This MMAY include:  
 - Service discovery and identification  
 - Service identity life cycle management  
 - Encryption of service to service communications  
 - Authentication, authorization and permissions at the service level (not application or user level)  
 - Service monitoring and transaction logging  

Depending on the governance requirements, this layer may also include tools to centralize service logic including message routing, workflow and service orchestration, and message translation."/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <type value="system"/>
</ActorDefinition>