Extension-iso21090-uncertainty.xml

Standard Deviation (same units as the quantity)

<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="iso21090-uncertainty"/>
  <url value="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty"/>
  <name value="Standard Deviation (same units as the quantity)"/>
  <status value="draft"/>
  <publisher value="Health Level Seven International (Modeling and Methodology)"/>
  <contact>
    <telecom>
      <system value="other"/>
      <value value="http://www.hl7.org/Special/committees/mnm"/>
    </telecom>
  </contact>
  <date value="2012-06-24"/>
  <description value="The primary measure of variance/uncertainty of the value (the square root of the sum of
   the squares of the differences between all data points and the mean)."/>
  <fhirVersion value="1.6.0"/>
  <mapping>
    <identity value="rim"/>
    <uri value="http://hl7.org/v3"/>
    <name value="RIM Mapping"/>
  </mapping>
  <kind value="complex-type"/>
  <abstract value="false"/>
  <contextType value="datatype"/>
  <context value="Quantity"/>
  <type value="Extension"/>
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension"/>
  <derivation value="constraint"/>
  <snapshot>
    <element id="Extension:standarddeviation(sameunitsasthequantity)">
      <path value="Extension"/>
      <short value="Standard Deviation (same units as the quantity)"/>
      <definition value="The primary measure of variance/uncertainty of the value (the square root of the sum of
       the squares of the differences between all data points and the mean)."/>
      <comments value="standardDeviation has the same units as the quantity. It is used to normalize the data
       for computing the distribution function. Applications that cannot deal with probability
       distributions can still get an idea about the confidence level by looking at standardDeviation."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <condition value="ele-1"/>
      <constraint>
        <key value="ele-1"/>
        <severity value="error"/>
        <human value="All FHIR elements must have a @value or children"/>
        <expression value="children().count() &gt; id.count()"/>
        <xpath value="@value|f:*|h:div"/>
      </constraint>
      <constraint>
        <key value="ext-1"/>
        <severity value="error"/>
        <human value="Must have either extensions or value[x], not both"/>
        <expression value="extension.exists() != value.exists()"/>
        <xpath value="exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')])"/>
      </constraint>
      <mapping>
        <identity value="rim"/>
        <map value="PPD.standardDeviation"/>
      </mapping>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).id">
      <path value="Extension.id"/>
      <representation value="xmlAttr"/>
      <short value="xml:id (or equivalent in JSON)"/>
      <definition value="unique id for the element within a resource (for internal references). This may be any
       string value that does not contain spaces."/>
      <min value="0"/>
      <max value="1"/>
      <base>
        <path value="Element.id"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="string"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="n/a"/>
      </mapping>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).extension:extension">
      <path value="Extension.extension"/>
      <name value="extension"/>
      <short value="Extension"/>
      <definition value="An Extension"/>
      <min value="0"/>
      <max value="0"/>
      <base>
        <path value="Element.extension"/>
        <min value="0"/>
        <max value="*"/>
      </base>
      <type>
        <code value="Extension"/>
      </type>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).url">
      <path value="Extension.url"/>
      <representation value="xmlAttr"/>
      <short value="identifies the meaning of the extension"/>
      <definition value="Source of the definition for the extension code - a logical name or a URL."/>
      <comments value="The definition may point directly to a computable or human-readable definition of the
       extensibility codes, or it may be a logical URI as declared in some other specification.
       The definition SHALL be a URI for the Structure Definition defining the extension."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.url"/>
        <min value="1"/>
        <max value="1"/>
      </base>
      <type>
        <code value="uri"/>
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty"/>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).valueDecimal">
      <path value="Extension.valueDecimal"/>
      <short value="Value of extension"/>
      <definition value="Value of extension - may be a resource or one of a constrained set of the data types (see
       Extensibility in the spec for list)."/>
      <min value="1"/>
      <max value="1"/>
      <base>
        <path value="Extension.value[x]"/>
        <min value="0"/>
        <max value="1"/>
      </base>
      <type>
        <code value="decimal"/>
      </type>
      <mapping>
        <identity value="rim"/>
        <map value="N/A"/>
      </mapping>
    </element>
  </snapshot>
  <differential>
    <element id="Extension:standarddeviation(sameunitsasthequantity)">
      <path value="Extension"/>
      <short value="Standard Deviation (same units as the quantity)"/>
      <definition value="The primary measure of variance/uncertainty of the value (the square root of the sum of
       the squares of the differences between all data points and the mean)."/>
      <comments value="standardDeviation has the same units as the quantity. It is used to normalize the data
       for computing the distribution function. Applications that cannot deal with probability
       distributions can still get an idea about the confidence level by looking at standardDeviation."/>
      <min value="0"/>
      <max value="1"/>
      <mapping>
        <identity value="rim"/>
        <map value="PPD.standardDeviation"/>
      </mapping>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).extension:extension">
      <path value="Extension.extension"/>
      <name value="extension"/>
      <max value="0"/>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).url">
      <path value="Extension.url"/>
      <type>
        <code value="uri"/>
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/iso21090-uncertainty"/>
    </element>
    <element id="Extension:standarddeviation(sameunitsasthequantity).value[x]">
      <path value="Extension.value[x]"/>
      <min value="1"/>
      <type>
        <code value="decimal"/>
      </type>
    </element>
  </differential>
</StructureDefinition>