Clinical Practice Guidelines
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This page is part of the Clinical Guidelines (v2.0.0: STU2) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version. For a full list of available versions, see the Directory of published versions

: CPG PlanDefinition Apply - XML Representation

Page standards status: Trial-use Maturity Level: 2

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<OperationDefinition xmlns="http://hl7.org/fhir">
  <id value="cpg-plandefinition-apply"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: OperationDefinition cpg-plandefinition-apply</b></p><a name="cpg-plandefinition-apply"> </a><a name="hccpg-plandefinition-apply"> </a><a name="cpg-plandefinition-apply-en-US"> </a><p>URL: [base]/PlanDefinition/$apply</p><p>URL: [base]/PlanDefinition/[id]/$apply</p><h3>Parameters</h3><table class="grid"><tr><td><b>Use</b></td><td><b>Name</b></td><td><b>Scope</b></td><td><b>Cardinality</b></td><td><b>Type</b></td><td><b>Binding</b></td><td><b>Documentation</b></td></tr><tr><td>IN</td><td>url</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#uri">uri</a></td><td/><td><div><p>Canonical URL of the PlanDefinition when invoked at the resource type level. This is exclusive with the <code>planDefinition</code> parameter.</p>
</div></td></tr><tr><td>IN</td><td>version</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td/><td><div><p>Version of the PlanDefinition when invoked at the resource type level. This is exclusive with the <code>planDefinition</code> parameter.</p>
</div></td></tr><tr><td>IN</td><td>planDefinition</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/plandefinition.html">PlanDefinition</a></td><td/><td><div><p>The plan definition to be applied. If the operation is invoked at the instance level, this parameter is not allowed; if the operation is invoked at the type level, either this parameter or <code>url</code> (and optionally <code>version</code>) must be supplied.</p>
</div></td></tr><tr><td>IN</td><td>subject</td><td/><td>1..*</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a><br/>(<a href="http://hl7.org/fhir/R4/search.html#reference">reference</a>)</td><td/><td><div><p>The subject(s) that is/are the target of the plan to be applied. The subject may be a Patient, Practitioner, Organization, Location, Device, or Group. Subjects provided in this parameter will be resolved as the subject of the PlanDefinition based on the type of the subject. If multiple subjects of the same type are provided, the behavior is implementation-defined</p>
</div></td></tr><tr><td>IN</td><td>encounter</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a><br/>(<a href="http://hl7.org/fhir/R4/search.html#reference">reference</a>)</td><td/><td><div><p>The encounter in context, if any</p>
</div></td></tr><tr><td>IN</td><td>practitioner</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a><br/>(<a href="http://hl7.org/fhir/R4/search.html#reference">reference</a>)</td><td/><td><div><p>The practitioner applying the plan definition</p>
</div></td></tr><tr><td>IN</td><td>organization</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a><br/>(<a href="http://hl7.org/fhir/R4/search.html#reference">reference</a>)</td><td/><td><div><p>The organization applying the plan definition</p>
</div></td></tr><tr><td>IN</td><td>userType</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td/><td><div><p>The type of user initiating the request, e.g. patient, healthcare provider, or specific type of healthcare provider (physician, nurse, etc.)</p>
</div></td></tr><tr><td>IN</td><td>userLanguage</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td/><td><div><p>Preferred language of the person using the system</p>
</div></td></tr><tr><td>IN</td><td>userTaskContext</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td/><td><div><p>The task the system user is performing, e.g. laboratory results review, medication list review, etc. This information can be used to tailor decision support outputs, such as recommended information resources</p>
</div></td></tr><tr><td>IN</td><td>setting</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td/><td><div><p>The current setting of the request (inpatient, outpatient, etc.)</p>
</div></td></tr><tr><td>IN</td><td>settingContext</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#CodeableConcept">CodeableConcept</a></td><td/><td><div><p>Additional detail about the setting of the request, if any</p>
</div></td></tr><tr><td>IN</td><td>mergeNestedCarePlans</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#boolean">boolean</a></td><td/><td><div><p>True if the result of any nested PlanDefinitions should be merged into the final care plan, false if they should be preserved as nested CarePlans in the output. If this parameter is not specified, the default behavior is to preserve nested care plans in the output.</p>
</div></td></tr><tr><td>IN</td><td>parameters</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/parameters.html">Parameters</a></td><td/><td><div><p>Any input parameters defined in libraries referenced by the PlanDefinition.  Parameter types are mapped to CQL as specified in the Using CQL With FHIR implementation guide. If a parameter appears more than once in the input Parameters resource, it is represented with a List in the input CQL. If a parameter has parts, it is represented as a Tuple in the input CQL.</p>
</div></td></tr><tr><td>IN</td><td>useServerData</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#boolean">boolean</a></td><td/><td><div><p>Whether to use data from the server performing the evaluation. If this parameter is true (the default), then the operation will use data first from any bundles provided as parameters (through the data and prefetch parameters), second data from the server performing the operation, and third, data from the dataEndpoint parameter (if provided). If this parameter is false, the operation will use data first from the bundles provided in the data or prefetch parameters, and second from the dataEndpoint parameter (if provided).</p>
</div></td></tr><tr><td>IN</td><td>data</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/bundle.html">Bundle</a></td><td/><td><div><p>Data to be made available to the PlanDefinition evaluation. This parameter is exclusive with the prefetchData parameter (i.e. either provide all data as a single bundle, or provide data using multiple bundles with prefetch descriptions).</p>
</div></td></tr><tr><td>IN</td><td>prefetchData</td><td/><td>0..*</td><td></td><td/><td><div><p>Data to be made available to the PlanDefinition evaluation, organized as prefetch response bundles. Each prefetchData parameter specifies either the name of the prefetchKey it is satisfying, a DataRequirement describing the prefetch, or both.</p>
</div></td></tr><tr><td>IN</td><td>prefetchData.key</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#string">string</a></td><td/><td><div><p>The key of the prefetch item. This typically corresponds to the name of a parameter in a library, or the name of a prefetch item in a CDS Hooks discovery response</p>
</div></td></tr><tr><td>IN</td><td>prefetchData.descriptor</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/metadatatypes.html#DataRequirement">DataRequirement</a></td><td/><td><div><p>A DataRequirement describing the content of the prefetch item.</p>
</div></td></tr><tr><td>IN</td><td>prefetchData.data</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/bundle.html">Bundle</a></td><td/><td><div><p>The prefetch data as a Bundle. If the prefetchData has no prefetchResult part, it indicates there is no data associated with this prefetch item.</p>
</div></td></tr><tr><td>IN</td><td>dataEndpoint</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/endpoint.html">Endpoint</a></td><td/><td><div><p>An endpoint to use to access data referenced by retrieve operations in libraries referenced by the PlanDefinition. If provided, this endpoint is used after the data or prefetchData bundles, and the server, if the useServerData parameter is true.</p>
</div></td></tr><tr><td>IN</td><td>artifactEndpointConfiguration</td><td/><td>0..*</td><td></td><td/><td><div><p>Configuration information to resolve canonical artifacts</p>
<p>Processing Semantics:</p>
<p>Create a canonical-like reference (e.g.
<code>{canonical.url}|{canonical.version}</code> or similar extensions for non-canonical artifacts).</p>
<ul>
<li>Given a single <code>artifactEndpointConfiguration</code>
<ul>
<li>When <code>artifactRoute</code> is present
<ul>
<li>And <code>artifactRoute</code> <em>starts with</em> canonical or artifact reference</li>
<li>Then attempt to resolve with <code>endpointUri</code> or <code>endpoint</code></li>
</ul>
</li>
<li>When <code>artifactRoute</code> is not present
<ul>
<li>Then attempt to resolve with <code>endpointUri</code> or <code>endpoint</code></li>
</ul>
</li>
</ul>
</li>
<li>Given multiple <code>artifactEndpointConfiguration</code>s
<ul>
<li>Then rank order each configuration (see below)</li>
<li>And attempt to resolve with <code>endpointUri</code> or <code>endpoint</code> in order until resolved</li>
</ul>
</li>
</ul>
<p>Rank each <code>artifactEndpointConfiguration</code> such that:</p>
<ul>
<li>if <code>artifactRoute</code> is present <em>and</em> <code>artifactRoute</code> <em>starts with</em> canonical or artifact reference: rank based on number of matching characters</li>
<li>if <code>artifactRoute</code> is <em>not</em> present: include but rank lower</li>
</ul>
<p>NOTE: For evenly ranked <code>artifactEndpointConfiguration</code>s, order as defined in the
OperationDefinition.</p>
</div></td></tr><tr><td>IN</td><td>artifactEndpointConfiguration.artifactRoute</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#uri">uri</a></td><td/><td><div><p>An optional route used to determine whether this endpoint is expected to be able to resolve artifacts that match the route (i.e. start with the route, up to and including the entire url)</p>
</div></td></tr><tr><td>IN</td><td>artifactEndpointConfiguration.endpointUri</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/datatypes.html#uri">uri</a></td><td/><td><div><p>The URI of the endpoint, exclusive with the <code>endpoint</code> parameter</p>
</div></td></tr><tr><td>IN</td><td>artifactEndpointConfiguration.endpoint</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/endpoint.html">Endpoint</a></td><td/><td><div><p>An Endpoint resource describing the endpoint, exclusive with the <code>endpointUri</code> parameter</p>
</div></td></tr><tr><td>IN</td><td>terminologyEndpoint</td><td/><td>0..1</td><td><a href="http://hl7.org/fhir/R4/endpoint.html">Endpoint</a></td><td/><td><div><p>An endpoint to use to access terminology (i.e. valuesets, codesystems, and membership testing) referenced by the PlanDefinition. If no terminology endpoint is supplied, the evaluation will attempt to use the server on which the operation is being performed as the terminology server.</p>
</div></td></tr><tr><td>OUT</td><td>return</td><td/><td>0..*</td><td><a href="http://hl7.org/fhir/R4/bundle.html">Bundle</a></td><td/><td><div><p>A Bundle for each input subject that is the result of applying the plan definition to that subject.</p>
</div></td></tr></table><div><p>The result of this operation is a Bundle for each subject, where the Bundle
contains Request resources that are the direct result of applying
the PlanDefinition to that subject. The Bundle will have entries for
each of the applicable actions in the PlanDefinition based on evaluating
the applicability condition in context, and producing Request resources
based on the definition element for each applicable action.</p>
<p>For each applicable action, the definition is applied as described in the <code>$apply</code>
operation of the ActivityDefinition resource, and the resulting resource is
added as an entry in the Bundle. The resulting Bundle may be any combination of
Request resources, including CarePlan, RequestGroup, and individual Request resources
such as ServiceRequest and MedicationRequest.</p>
<p>Note that to preserve the structure of the PlanDefinition, systems may choose to return
the requests in a RequestGroup. In this case, the individual request resources will have
an intent of <code>option</code>, meaning that their intent is governed by the RequestGroup.</p>
<p>If the ActivityDefinition includes library references, those
libraries will be available to the evaluated expressions. If those libraries
have parameters, those parameters will be bound by name to the parameters given
to the operation.  In addition, parameters to the <code>$apply</code> operation are available
within dynamicValue expressions as context variables, accessible by the name of
the parameter, prefixed with a percent (%) symbol.</p>
<p>For a more detailed description, refer to the PlanDefinition and
ActivityDefinition resource documentation. Note that result of this operation is
transient (i.e. none of the resources created by the operation are persisted in
the server, they are all returned as entries in the result Bundle(s)). The
result effectively represents a proposed set of activities, and it is up to the
caller to determine whether and how those activities are actually carried out.</p>
</div></div>
  </text>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="2"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="trial-use"/>
  </extension>
  <extension
             url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="cds"/>
  </extension>
  <url
       value="http://hl7.org/fhir/uv/cpg/OperationDefinition/cpg-plandefinition-apply"/>
  <version value="2.0.0"/>
  <name value="CPGPlanDefinitionApply"/>
  <title value="CPG PlanDefinition Apply"/>
  <status value="active"/>
  <kind value="operation"/>
  <date value="2024-11-26T17:38:52+00:00"/>
  <publisher value="HL7 International / Clinical Decision Support"/>
  <contact>
    <name value="HL7 International / Clinical Decision Support"/>
    <telecom>
      <system value="url"/>
      <value value="http://www.hl7.org/Special/committees/dss"/>
    </telecom>
  </contact>
  <description
               value="The apply operation applies a PlanDefinition to a given context"/>
  <jurisdiction>
    <coding>
      <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/>
      <code value="001"/>
      <display value="World"/>
    </coding>
  </jurisdiction>
  <code value="apply"/>
  <comment
           value="The result of this operation is a Bundle for each subject, where the Bundle 
contains Request resources that are the direct result of applying 
the PlanDefinition to that subject. The Bundle will have entries for 
each of the applicable actions in the PlanDefinition based on evaluating 
the applicability condition in context, and producing Request resources 
based on the definition element for each applicable action.

For each applicable action, the definition is applied as described in the `$apply`
operation of the ActivityDefinition resource, and the resulting resource is
added as an entry in the Bundle. The resulting Bundle may be any combination of
Request resources, including CarePlan, RequestGroup, and individual Request resources
such as ServiceRequest and MedicationRequest.

Note that to preserve the structure of the PlanDefinition, systems may choose to return
the requests in a RequestGroup. In this case, the individual request resources will have
an intent of `option`, meaning that their intent is governed by the RequestGroup.

If the ActivityDefinition includes library references, those
libraries will be available to the evaluated expressions. If those libraries
have parameters, those parameters will be bound by name to the parameters given
to the operation.  In addition, parameters to the `$apply` operation are available
within dynamicValue expressions as context variables, accessible by the name of
the parameter, prefixed with a percent (%) symbol.

For a more detailed description, refer to the PlanDefinition and
ActivityDefinition resource documentation. Note that result of this operation is
transient (i.e. none of the resources created by the operation are persisted in
the server, they are all returned as entries in the result Bundle(s)). The
result effectively represents a proposed set of activities, and it is up to the
caller to determine whether and how those activities are actually carried out."/>
  <resource value="PlanDefinition"/>
  <system value="false"/>
  <type value="true"/>
  <instance value="true"/>
  <parameter>
    <name value="url"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="Canonical URL of the PlanDefinition when invoked at the resource type level. This is exclusive with the `planDefinition` parameter."/>
    <type value="uri"/>
  </parameter>
  <parameter>
    <name value="version"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="Version of the PlanDefinition when invoked at the resource type level. This is exclusive with the `planDefinition` parameter."/>
    <type value="string"/>
  </parameter>
  <parameter>
    <name value="planDefinition"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="The plan definition to be applied. If the operation is invoked at the instance level, this parameter is not allowed; if the operation is invoked at the type level, either this parameter or `url` (and optionally `version`) must be supplied."/>
    <type value="PlanDefinition"/>
  </parameter>
  <parameter>
    <name value="subject"/>
    <use value="in"/>
    <min value="1"/>
    <max value="*"/>
    <documentation
                   value="The subject(s) that is/are the target of the plan to be applied. The subject may be a Patient, Practitioner, Organization, Location, Device, or Group. Subjects provided in this parameter will be resolved as the subject of the PlanDefinition based on the type of the subject. If multiple subjects of the same type are provided, the behavior is implementation-defined"/>
    <type value="string"/>
    <searchType value="reference"/>
  </parameter>
  <parameter>
    <name value="encounter"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation value="The encounter in context, if any"/>
    <type value="string"/>
    <searchType value="reference"/>
  </parameter>
  <parameter>
    <name value="practitioner"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation value="The practitioner applying the plan definition"/>
    <type value="string"/>
    <searchType value="reference"/>
  </parameter>
  <parameter>
    <name value="organization"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation value="The organization applying the plan definition"/>
    <type value="string"/>
    <searchType value="reference"/>
  </parameter>
  <parameter>
    <name value="userType"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="The type of user initiating the request, e.g. patient, healthcare provider, or specific type of healthcare provider (physician, nurse, etc.)"/>
    <type value="CodeableConcept"/>
  </parameter>
  <parameter>
    <name value="userLanguage"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation value="Preferred language of the person using the system"/>
    <type value="CodeableConcept"/>
  </parameter>
  <parameter>
    <name value="userTaskContext"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="The task the system user is performing, e.g. laboratory results review, medication list review, etc. This information can be used to tailor decision support outputs, such as recommended information resources"/>
    <type value="CodeableConcept"/>
  </parameter>
  <parameter>
    <name value="setting"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="The current setting of the request (inpatient, outpatient, etc.)"/>
    <type value="CodeableConcept"/>
  </parameter>
  <parameter>
    <name value="settingContext"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="Additional detail about the setting of the request, if any"/>
    <type value="CodeableConcept"/>
  </parameter>
  <parameter>
    <name value="mergeNestedCarePlans"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="True if the result of any nested PlanDefinitions should be merged into the final care plan, false if they should be preserved as nested CarePlans in the output. If this parameter is not specified, the default behavior is to preserve nested care plans in the output."/>
    <type value="boolean"/>
  </parameter>
  <parameter>
    <name value="parameters"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="Any input parameters defined in libraries referenced by the PlanDefinition.  Parameter types are mapped to CQL as specified in the Using CQL With FHIR implementation guide. If a parameter appears more than once in the input Parameters resource, it is represented with a List in the input CQL. If a parameter has parts, it is represented as a Tuple in the input CQL."/>
    <type value="Parameters"/>
  </parameter>
  <parameter>
    <name value="useServerData"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="Whether to use data from the server performing the evaluation. If this parameter is true (the default), then the operation will use data first from any bundles provided as parameters (through the data and prefetch parameters), second data from the server performing the operation, and third, data from the dataEndpoint parameter (if provided). If this parameter is false, the operation will use data first from the bundles provided in the data or prefetch parameters, and second from the dataEndpoint parameter (if provided)."/>
    <type value="boolean"/>
  </parameter>
  <parameter>
    <name value="data"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="Data to be made available to the PlanDefinition evaluation. This parameter is exclusive with the prefetchData parameter (i.e. either provide all data as a single bundle, or provide data using multiple bundles with prefetch descriptions)."/>
    <type value="Bundle"/>
  </parameter>
  <parameter>
    <name value="prefetchData"/>
    <use value="in"/>
    <min value="0"/>
    <max value="*"/>
    <documentation
                   value="Data to be made available to the PlanDefinition evaluation, organized as prefetch response bundles. Each prefetchData parameter specifies either the name of the prefetchKey it is satisfying, a DataRequirement describing the prefetch, or both."/>
    <part>
      <name value="key"/>
      <use value="in"/>
      <min value="0"/>
      <max value="1"/>
      <documentation
                     value="The key of the prefetch item. This typically corresponds to the name of a parameter in a library, or the name of a prefetch item in a CDS Hooks discovery response"/>
      <type value="string"/>
    </part>
    <part>
      <name value="descriptor"/>
      <use value="in"/>
      <min value="0"/>
      <max value="1"/>
      <documentation
                     value="A DataRequirement describing the content of the prefetch item."/>
      <type value="DataRequirement"/>
    </part>
    <part>
      <name value="data"/>
      <use value="in"/>
      <min value="0"/>
      <max value="1"/>
      <documentation
                     value="The prefetch data as a Bundle. If the prefetchData has no prefetchResult part, it indicates there is no data associated with this prefetch item."/>
      <type value="Bundle"/>
    </part>
  </parameter>
  <parameter>
    <name value="dataEndpoint"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="An endpoint to use to access data referenced by retrieve operations in libraries referenced by the PlanDefinition. If provided, this endpoint is used after the data or prefetchData bundles, and the server, if the useServerData parameter is true."/>
    <type value="Endpoint"/>
  </parameter>
  <parameter>
    <name value="artifactEndpointConfiguration"/>
    <use value="in"/>
    <min value="0"/>
    <max value="*"/>
    <documentation
                   value="Configuration information to resolve canonical artifacts

Processing Semantics:

Create a canonical-like reference (e.g.
`{canonical.url}|{canonical.version}` or similar extensions for non-canonical artifacts).

* Given a single `artifactEndpointConfiguration`
  * When `artifactRoute` is present
    * And `artifactRoute` *starts with* canonical or artifact reference
    * Then attempt to resolve with `endpointUri` or `endpoint`
  * When `artifactRoute` is not present
    * Then attempt to resolve with `endpointUri` or `endpoint`
* Given multiple `artifactEndpointConfiguration`s
  * Then rank order each configuration (see below)
  * And attempt to resolve with `endpointUri` or `endpoint` in order until resolved

Rank each `artifactEndpointConfiguration` such that:
* if `artifactRoute` is present *and* `artifactRoute` *starts with* canonical or artifact reference: rank based on number of matching characters 
* if `artifactRoute` is *not* present: include but rank lower

NOTE: For evenly ranked `artifactEndpointConfiguration`s, order as defined in the
OperationDefinition."/>
    <part>
      <name value="artifactRoute"/>
      <use value="in"/>
      <min value="0"/>
      <max value="1"/>
      <documentation
                     value="An optional route used to determine whether this endpoint is expected to be able to resolve artifacts that match the route (i.e. start with the route, up to and including the entire url)"/>
      <type value="uri"/>
    </part>
    <part>
      <name value="endpointUri"/>
      <use value="in"/>
      <min value="0"/>
      <max value="1"/>
      <documentation
                     value="The URI of the endpoint, exclusive with the `endpoint` parameter"/>
      <type value="uri"/>
    </part>
    <part>
      <name value="endpoint"/>
      <use value="in"/>
      <min value="0"/>
      <max value="1"/>
      <documentation
                     value="An Endpoint resource describing the endpoint, exclusive with the `endpointUri` parameter"/>
      <type value="Endpoint"/>
    </part>
  </parameter>
  <parameter>
    <name value="terminologyEndpoint"/>
    <use value="in"/>
    <min value="0"/>
    <max value="1"/>
    <documentation
                   value="An endpoint to use to access terminology (i.e. valuesets, codesystems, and membership testing) referenced by the PlanDefinition. If no terminology endpoint is supplied, the evaluation will attempt to use the server on which the operation is being performed as the terminology server."/>
    <type value="Endpoint"/>
  </parameter>
  <parameter>
    <name value="return"/>
    <use value="out"/>
    <min value="0"/>
    <max value="*"/>
    <documentation
                   value="A Bundle for each input subject that is the result of applying the plan definition to that subject."/>
    <type value="Bundle"/>
  </parameter>
</OperationDefinition>