Formatter / DCAT / Mobility DCAT - improve accrual periodicity mapping.

Cardinality: * ISO 0..n * DCAT 0..n * DCAT-AP 0..1 * Mobility DCAT 1..1 (in ISO either use corresponding period eg. P0Y0M0DT1H0M0S or extend the codelist with the proper vocabulary) accrualPeriodicity mapping done using the ISO to Dublin core value mapping but additional checks are done when ISO records extended the codelist and may used the EU Publication Office frequency codes or the Mobility DCAT-AP update frequency codes. Domain specific codelists take priority over the DC or ISO codelists. eg. <mmi:MD_MaintenanceFrequencyCode codeListValue="15min"/> multipleAccrualPeriodicityAllowed is a parameter that can be set to true to allow multiple accrualPeriodicity values. Default to false for EU formatters. true for DCAT.
SPW-DIG · Sep 20, 2024 · 659a1a0 · 659a1a0
1 parent bde1cee
commit 659a1a0
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diff --git a/schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/dcat/dcat-core-dataset.xsl b/schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/dcat/dcat-core-dataset.xsl
@@ -79,7 +79,10 @@
         </dcat:spatialResolutionInMeters>
       </xsl:when>
       <xsl:otherwise>
-        <xsl:comment>WARNING: Spatial resolution only supported in meters. <xsl:value-of select="concat(*/text(), ' ', */@uom)"/> is ignored (can be related to unknown unit or no conversion factor or not a decimal value).</xsl:comment>
+        <xsl:comment>WARNING: Spatial resolution only supported in meters.
+          <xsl:value-of select="concat(*/text(), ' ', */@uom)"/> is ignored (can be related to unknown unit or no
+          conversion factor or not a decimal value).
+        </xsl:comment>
       </xsl:otherwise>
     </xsl:choose>
 
@@ -103,6 +106,24 @@
   Definition:	The frequency at which a dataset is published.
   Range:	dcterms:Frequency (A rate at which something recurs)
   Usage note:	The value of dcterms:accrualPeriodicity gives the rate at which the dataset-as-a-whole is updated. This may be complemented by dcat:temporalResolution to give the time between collected data points in a time series.
+
+  Cardinality:
+  * ISO 0..n
+  * DCAT 0..n
+  * DCAT-AP 0..1
+  * Mobility DCAT 1..1 (in ISO either use corresponding period eg. P0Y0M0DT1H0M0S or extend the codelist with the proper vocabulary)
+
+  accrualPeriodicity mapping done using the ISO to Dublin core value mapping
+  but additional checks are done when ISO records extended the codelist and
+  may used the EU Publication Office frequency codes
+  or the Mobility DCAT-AP update frequency codes.
+  Domain specific codelists take priority over the DC or ISO codelists.
+
+  eg.
+  <mmi:MD_MaintenanceFrequencyCode codeListValue="15min"/>
+
+  multipleAccrualPeriodicityAllowed is a parameter that can be set to true to allow multiple accrualPeriodicity values.
+  Default to false for EU formatters. true for DCAT.
   -->
   <xsl:variable name="isoFrequencyToDublinCore"
                 as="node()*">
@@ -122,21 +143,64 @@
     -->
   </xsl:variable>
 
-  <xsl:template mode="iso19115-3-to-dcat"
-                match="mdb:identificationInfo/*/mri:resourceMaintenance/*/mmi:maintenanceAndUpdateFrequency">
-
-    <xsl:variable name="dcFrequency"
-                  as="xs:string?"
-                  select="$isoFrequencyToDublinCore[@key = current()/*/@codeListValue]"/>
-
-    <dct:accrualPeriodicity>
-      <dct:Frequency rdf:about="{if($dcFrequency)
-                                 then concat($europaPublicationBaseUri, 'frequency/', $dcFrequency)
-                                 else concat($isoCodeListBaseUri, */@codeListValue)}"/>
-    </dct:accrualPeriodicity>
-  </xsl:template>
 
+  <!--
+  http://publications.europa.eu/resource/authority/frequency
+  -->
+  <xsl:variable name="euUpdateFrquencyToUri" as="node()*">
+    <entry key="BIDECENNIAL">http://publications.europa.eu/resource/authority/frequency/BIDECENNIAL</entry>
+    <entry key="TRIDECENNIAL">http://publications.europa.eu/resource/authority/frequency/TRIDECENNIAL</entry>
+    <entry key="BIHOURLY">http://publications.europa.eu/resource/authority/frequency/BIHOURLY</entry>
+    <entry key="TRIHOURLY">http://publications.europa.eu/resource/authority/frequency/TRIHOURLY</entry>
+    <entry key="OTHER">http://publications.europa.eu/resource/authority/frequency/OTHER</entry>
+    <entry key="WEEKLY">http://publications.europa.eu/resource/authority/frequency/WEEKLY</entry>
+    <entry key="NOT_PLANNED">http://publications.europa.eu/resource/authority/frequency/NOT_PLANNED</entry>
+    <entry key="AS_NEEDED">http://publications.europa.eu/resource/authority/frequency/AS_NEEDED</entry>
+    <entry key="HOURLY">http://publications.europa.eu/resource/authority/frequency/HOURLY</entry>
+    <entry key="QUADRENNIAL">http://publications.europa.eu/resource/authority/frequency/QUADRENNIAL</entry>
+    <entry key="QUINQUENNIAL">http://publications.europa.eu/resource/authority/frequency/QUINQUENNIAL</entry>
+    <entry key="DECENNIAL">http://publications.europa.eu/resource/authority/frequency/DECENNIAL</entry>
+    <entry key="WEEKLY_2">http://publications.europa.eu/resource/authority/frequency/WEEKLY_2</entry>
+    <entry key="WEEKLY_3">http://publications.europa.eu/resource/authority/frequency/WEEKLY_3</entry>
+    <entry key="UNKNOWN">http://publications.europa.eu/resource/authority/frequency/UNKNOWN</entry>
+    <entry key="UPDATE_CONT">http://publications.europa.eu/resource/authority/frequency/UPDATE_CONT</entry>
+    <entry key="QUARTERLY">http://publications.europa.eu/resource/authority/frequency/QUARTERLY</entry>
+    <entry key="TRIENNIAL">http://publications.europa.eu/resource/authority/frequency/TRIENNIAL</entry>
+    <entry key="NEVER">http://publications.europa.eu/resource/authority/frequency/NEVER</entry>
+    <entry key="OP_DATPRO">http://publications.europa.eu/resource/authority/frequency/OP_DATPRO</entry>
+    <entry key="MONTHLY_2">http://publications.europa.eu/resource/authority/frequency/MONTHLY_2</entry>
+    <entry key="MONTHLY_3">http://publications.europa.eu/resource/authority/frequency/MONTHLY_3</entry>
+    <entry key="IRREG">http://publications.europa.eu/resource/authority/frequency/IRREG</entry>
+    <entry key="MONTHLY">http://publications.europa.eu/resource/authority/frequency/MONTHLY</entry>
+    <entry key="DAILY">http://publications.europa.eu/resource/authority/frequency/DAILY</entry>
+    <entry key="DAILY_2">http://publications.europa.eu/resource/authority/frequency/DAILY_2</entry>
+    <entry key="BIWEEKLY">http://publications.europa.eu/resource/authority/frequency/BIWEEKLY</entry>
+    <entry key="CONT">http://publications.europa.eu/resource/authority/frequency/CONT</entry>
+    <entry key="BIENNIAL">http://publications.europa.eu/resource/authority/frequency/BIENNIAL</entry>
+    <entry key="BIMONTHLY">http://publications.europa.eu/resource/authority/frequency/BIMONTHLY</entry>
+    <entry key="ANNUAL_2">http://publications.europa.eu/resource/authority/frequency/ANNUAL_2</entry>
+    <entry key="ANNUAL_3">http://publications.europa.eu/resource/authority/frequency/ANNUAL_3</entry>
+    <entry key="ANNUAL">http://publications.europa.eu/resource/authority/frequency/ANNUAL</entry>
+  </xsl:variable>
 
+  <!--
+  https://w3id.org/mobilitydcat-ap/update-frequency
+  -->
+  <xsl:variable name="mobilityDcatApUpdateFrequencyToUri"
+                as="node()*">
+    <entry key="1h">https://w3id.org/mobilitydcat-ap/update-frequency/1h</entry>
+    <entry key="1min">https://w3id.org/mobilitydcat-ap/update-frequency/1min</entry>
+    <entry key="10min">https://w3id.org/mobilitydcat-ap/update-frequency/10min</entry>
+    <entry key="12h">https://w3id.org/mobilitydcat-ap/update-frequency/12h</entry>
+    <entry key="15min">https://w3id.org/mobilitydcat-ap/update-frequency/15min</entry>
+    <entry key="2h">https://w3id.org/mobilitydcat-ap/update-frequency/2h</entry>
+    <entry key="24h">https://w3id.org/mobilitydcat-ap/update-frequency/24h</entry>
+    <entry key="3h">https://w3id.org/mobilitydcat-ap/update-frequency/3h</entry>
+    <entry key="3 months">https://w3id.org/mobilitydcat-ap/update-frequency/3-months</entry>
+    <entry key="30min">https://w3id.org/mobilitydcat-ap/update-frequency/30min</entry>
+    <entry key="5min">https://w3id.org/mobilitydcat-ap/update-frequency/5min</entry>
+    <entry key="6 months">https://w3id.org/mobilitydcat-ap/update-frequency/6-months</entry>
+  </xsl:variable>
 
   <xsl:variable name="isoDurationToMobilityDcatApUpdateFrequency"
                 as="node()*">
@@ -155,21 +219,68 @@
     <entry key="P0Y6M0DT0H0M0S">https://w3id.org/mobilitydcat-ap/update-frequency/6-months</entry>
   </xsl:variable>
 
+
+  <xsl:param name="multipleAccrualPeriodicityAllowed"
+             as="xs:string"
+             select="'true'"/>
+  <xsl:variable name="allowMultipleAccrualPeriodicity"
+                as="xs:boolean"
+                select="xs:boolean($multipleAccrualPeriodicityAllowed)"/>
+
   <xsl:template mode="iso19115-3-to-dcat"
-                match="mdb:identificationInfo/*/mri:resourceMaintenance/*/mmi:userDefinedMaintenanceFrequency">
+                match="mdb:identificationInfo/*/mri:resourceMaintenance">
+    <xsl:variable name="isFirstMaintenanceElement"
+                  select="preceding-sibling::*[1]/name() != 'mri:resourceMaintenance'"/>
+    <xsl:if test="$isFirstMaintenanceElement">
+      <xsl:variable name="listOfFrequency"
+                    as="node()*">
+        <xsl:for-each select="../mri:resourceMaintenance/*">
+          <xsl:for-each select="mmi:maintenanceAndUpdateFrequency[*/@codeListValue != '']">
+            <xsl:variable name="dcFrequency"
+                          as="xs:string?"
+                          select="$isoFrequencyToDublinCore[@key = current()/*/@codeListValue]"/>
+
+            <xsl:variable name="dcatFrequencyUri"
+                          as="xs:string?"
+                          select="$euUpdateFrquencyToUri[@key = current()/*/@codeListValue]"/>
+
+            <xsl:variable name="mobilityDcatApUpdateFrequencyUri"
+                          as="xs:string?"
+                          select="$mobilityDcatApUpdateFrequencyToUri[@key = current()/*/@codeListValue]"/>
+
+            <!-- Domain specific codelists take priority -->
+            <xsl:variable name="dcOrIsoFrequency"
+                          as="xs:string?"
+                          select="if ($mobilityDcatApUpdateFrequencyUri != '' or $dcatFrequencyUri != '') then ''
+                                   else if($dcFrequency)
+                                   then concat($europaPublicationBaseUri, 'frequency/', $dcFrequency)
+                                   else concat($isoCodeListBaseUri, */@codeListValue)"/>
+
+            <xsl:for-each select="($mobilityDcatApUpdateFrequencyUri, $dcatFrequencyUri, $dcOrIsoFrequency[. != ''])">
+              <dct:accrualPeriodicity>
+                <dct:Frequency rdf:about="{current()}"/>
+              </dct:accrualPeriodicity>
+            </xsl:for-each>
+          </xsl:for-each>
 
-    <xsl:variable name="dcMobilityFrequency"
-                  as="xs:string?"
-                  select="$isoDurationToMobilityDcatApUpdateFrequency[@key = current()/gco:TM_PeriodDuration]"/>
+          <xsl:for-each select="mmi:userDefinedMaintenanceFrequency">
+            <xsl:variable name="mobilityFrequencyFromPeriod"
+                          as="xs:string?"
+                          select="$isoDurationToMobilityDcatApUpdateFrequency[@key = current()/gco:TM_PeriodDuration]"/>
+
+            <xsl:if test="$mobilityFrequencyFromPeriod">
+              <dct:accrualPeriodicity>
+                <dct:Frequency rdf:about="{$mobilityFrequencyFromPeriod}"/>
+              </dct:accrualPeriodicity>
+            </xsl:if>
+          </xsl:for-each>
+        </xsl:for-each>
+      </xsl:variable>
 
-    <xsl:if test="$dcMobilityFrequency">
-      <dct:accrualPeriodicity>
-        <dct:Frequency rdf:about="{$dcMobilityFrequency}"/>
-      </dct:accrualPeriodicity>
+      <xsl:copy-of select="if ($allowMultipleAccrualPeriodicity) then $listOfFrequency else $listOfFrequency[1]"/>
     </xsl:if>
   </xsl:template>
 
-
   <!--
   RDF Property:	dcat:temporalResolution
   Definition:	Minimum time period resolvable in the dataset.
@@ -179,7 +290,9 @@
   -->
   <xsl:template mode="iso19115-3-to-dcat"
                 match="mri:temporalResolution/*">
-    <dcat:temporalResolution rdf:datatype="http://www.w3.org/2001/XMLSchema#duration"><xsl:value-of select="text()"/></dcat:temporalResolution>
+    <dcat:temporalResolution rdf:datatype="http://www.w3.org/2001/XMLSchema#duration">
+      <xsl:value-of select="text()"/>
+    </dcat:temporalResolution>
   </xsl:template>
 
 
@@ -219,9 +332,9 @@
   <xsl:template mode="iso19115-3-to-dcat"
                 match="mri:extent/*/gex:geographicElement/gex:EX_GeographicBoundingBox">
     <xsl:variable name="north" select="gex:northBoundLatitude/gco:Decimal"/>
-    <xsl:variable name="east"  select="gex:eastBoundLongitude/gco:Decimal"/>
+    <xsl:variable name="east" select="gex:eastBoundLongitude/gco:Decimal"/>
     <xsl:variable name="south" select="gex:southBoundLatitude/gco:Decimal"/>
-    <xsl:variable name="west"  select="gex:westBoundLongitude/gco:Decimal"/>
+    <xsl:variable name="west" select="gex:westBoundLongitude/gco:Decimal"/>
 
     <xsl:variable name="geojson"
                   as="xs:string"
@@ -235,7 +348,9 @@
     <dct:spatial>
       <rdf:Description>
         <rdf:type rdf:resource="http://purl.org/dc/terms/Location"/>
-        <dcat:bbox rdf:datatype="http://www.opengis.net/ont/geosparql#geoJSONLiteral"><xsl:value-of select="$geojson"/></dcat:bbox>
+        <dcat:bbox rdf:datatype="http://www.opengis.net/ont/geosparql#geoJSONLiteral">
+          <xsl:value-of select="$geojson"/>
+        </dcat:bbox>
       </rdf:Description>
     </dct:spatial>
   </xsl:template>

diff --git a/schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/dcat/dcat-core.xsl b/schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/dcat/dcat-core.xsl
@@ -122,8 +122,7 @@
        * prov:wasGeneratedBy (Could be associated resource of type project?)
        -->
       <xsl:apply-templates mode="iso19115-3-to-dcat"
-                           select="mdb:identificationInfo/*/mri:resourceMaintenance/*/mmi:maintenanceAndUpdateFrequency
-                                  |mdb:identificationInfo/*/mri:resourceMaintenance/*/mmi:userDefinedMaintenanceFrequency
+                           select="mdb:identificationInfo/*/mri:resourceMaintenance
                                   |mdb:identificationInfo/*/mri:spatialResolution/*/mri:distance
                                   |mdb:identificationInfo/*/mri:temporalResolution/*
                                   |mdb:identificationInfo/*/mri:extent/*/gex:geographicElement/gex:EX_GeographicBoundingBox

diff --git a/.../iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/eu-dcat-ap/eu-dcat-ap-core.xsl b/.../iso19115-3.2018/src/main/plugin/iso19115-3.2018/formatter/eu-dcat-ap/eu-dcat-ap-core.xsl
@@ -17,6 +17,10 @@
   <xsl:import href="../dcat/dcat-core.xsl"/>
   <xsl:import href="eu-dcat-ap-core-dataset.xsl"/>
 
+  <xsl:param name="multipleAccrualPeriodicityAllowed"
+             as="xs:string"
+             select="'false'"/>
+
   <!--
    If true, all resource constraints are preserved in the output.
    The first one is a license, others are dct:rights.

diff --git a/services/src/test/java/org/fao/geonet/api/records/formatters/FormatterApiTest.java b/services/src/test/java/org/fao/geonet/api/records/formatters/FormatterApiTest.java
@@ -88,6 +88,7 @@ public static Collection<String[]> data() throws Exception {
 
         data.add(new String[]{"iso19115-3.2018-dcat-dataset.xml", "dcat", "", "iso19115-3.2018", "dataset-core.rdf"});
         data.add(new String[]{"iso19115-3.2018-dcat-dataset.xml", "eu-dcat-ap", "", "iso19115-3.2018", "dataset-core.rdf"});
+        data.add(new String[]{"iso19115-3.2018-dcat-dataset.xml", "eu-dcat-ap", "?multipleAccrualPeriodicityAllowed=true", "iso19115-3.2018", "dataset-core-multipleAccrualPeriodicityAllowed.rdf"});
         data.add(new String[]{"iso19115-3.2018-dcat-dataset.xml", "eu-geodcat-ap", "", "iso19115-3.2018", "dataset-core.rdf"});
         data.add(new String[]{"iso19115-3.2018-dcat-dataset.xml", "eu-dcat-ap-mobility", "", "iso19115-3.2018", "dataset-core.rdf"});
         data.add(new String[]{"iso19115-3.2018-dcat-dataset.xml", "eu-dcat-ap-hvd", "", "iso19115-3.2018", "dataset-core.rdf"});
@@ -151,7 +152,7 @@ public void checkFormatter() throws Exception {
                     }
 
 
-//                    FileUtils.writeStringToFile(new File("/tmp/services/src/test/resources/org/fao/geonet/api/records/formatters/" + String.format("%s-%s-%s",
+//                    FileUtils.writeStringToFile(new File("/tmp/services/src/test/resources/org/fao/geonet/api/records/formatters/new/" + String.format("%s-%s-%s",
 //                            schema, formatter, checkfile)), actual.replaceFirst("urn:uuid/.*</dct:identifier>", "urn:uuid/{uuid}</dct:identifier>"), StandardCharsets.UTF_8);
 
                     Diff diff = DiffBuilder

diff --git a/...est/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-dcat-dataset-core.rdf b/...est/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-dcat-dataset-core.rdf
@@ -454,6 +454,9 @@
       <dct:accrualPeriodicity>
          <dct:Frequency rdf:about="http://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#asNeeded"/>
       </dct:accrualPeriodicity>
+      <dct:accrualPeriodicity>
+         <dct:Frequency rdf:about="https://w3id.org/mobilitydcat-ap/update-frequency/5min"/>
+      </dct:accrualPeriodicity>
       <dct:accrualPeriodicity>
          <dct:Frequency rdf:about="https://w3id.org/mobilitydcat-ap/update-frequency/15min"/>
       </dct:accrualPeriodicity>
@@ -552,4 +555,4 @@
          </foaf:Document>
       </foaf:page>
    </rdf:Description>
-</rdf:RDF>
+</rdf:RDF>
diff --git a/...src/test/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-dcat-dataset.xml b/...src/test/resources/org/fao/geonet/api/records/formatters/iso19115-3.2018-dcat-dataset.xml
@@ -1,29 +1,18 @@
 <mdb:MD_Metadata xmlns:mri="http://standards.iso.org/iso/19115/-3/mri/1.0"
-                 xmlns:mda="http://standards.iso.org/iso/19115/-3/mda/1.0"
                  xmlns:mrl="http://standards.iso.org/iso/19115/-3/mrl/2.0"
                  xmlns:mrs="http://standards.iso.org/iso/19115/-3/mrs/1.0"
-                 xmlns:mds="http://standards.iso.org/iso/19115/-3/mds/2.0"
-                 xmlns:mrc="http://standards.iso.org/iso/19115/-3/mrc/2.0"
                  xmlns:gco="http://standards.iso.org/iso/19115/-3/gco/1.0"
-                 xmlns:gfc="http://standards.iso.org/iso/19110/gfc/1.1"
                  xmlns:mrd="http://standards.iso.org/iso/19115/-3/mrd/1.0"
-                 xmlns:cat="http://standards.iso.org/iso/19115/-3/cat/1.0"
                  xmlns:mco="http://standards.iso.org/iso/19115/-3/mco/1.0"
-                 xmlns:mdt="http://standards.iso.org/iso/19115/-3/mdt/2.0"
-                 xmlns:msr="http://standards.iso.org/iso/19115/-3/msr/2.0"
                  xmlns:mpc="http://standards.iso.org/iso/19115/-3/mpc/1.0"
-                 xmlns:srv="http://standards.iso.org/iso/19115/-3/srv/2.1"
                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                  xmlns:lan="http://standards.iso.org/iso/19115/-3/lan/1.0"
-                 xmlns:mac="http://standards.iso.org/iso/19115/-3/mac/2.0"
                  xmlns:gcx="http://standards.iso.org/iso/19115/-3/gcx/1.0"
                  xmlns:xlink="http://www.w3.org/1999/xlink"
                  xmlns:gex="http://standards.iso.org/iso/19115/-3/gex/1.0"
                  xmlns:gml="http://www.opengis.net/gml/3.2"
                  xmlns:mdb="http://standards.iso.org/iso/19115/-3/mdb/2.0"
-                 xmlns:mex="http://standards.iso.org/iso/19115/-3/mex/1.0"
                  xmlns:cit="http://standards.iso.org/iso/19115/-3/cit/2.0"
-                 xmlns:mas="http://standards.iso.org/iso/19115/-3/mas/1.0"
                  xmlns:mcc="http://standards.iso.org/iso/19115/-3/mcc/1.0"
                  xmlns:mmi="http://standards.iso.org/iso/19115/-3/mmi/1.0"
                  xmlns:mdq="http://standards.iso.org/iso/19157/-2/mdq/1.0"
@@ -591,11 +580,24 @@
               codeList="http://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#MD_MaintenanceFrequencyCode"
               codeListValue="monthly"/>
           </mmi:maintenanceAndUpdateFrequency>
+        </mmi:MD_MaintenanceInformation>
+      </mri:resourceMaintenance>
+      <mri:resourceMaintenance>
+        <mmi:MD_MaintenanceInformation>
           <mmi:maintenanceAndUpdateFrequency>
             <mmi:MD_MaintenanceFrequencyCode
               codeList="http://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#MD_MaintenanceFrequencyCode"
               codeListValue="asNeeded"/>
           </mmi:maintenanceAndUpdateFrequency>
+        </mmi:MD_MaintenanceInformation>
+      </mri:resourceMaintenance>
+      <mri:resourceMaintenance>
+        <mmi:MD_MaintenanceInformation>
+          <mmi:maintenanceAndUpdateFrequency>
+            <mmi:MD_MaintenanceFrequencyCode
+              codeList="http://standards.iso.org/iso/19115/resources/Codelists/cat/codelists.xml#MD_MaintenanceFrequencyCode"
+              codeListValue="5min"/>
+          </mmi:maintenanceAndUpdateFrequency>
           <mmi:userDefinedMaintenanceFrequency>
             <gco:TM_PeriodDuration>P0Y0M0DT0H15M0S</gco:TM_PeriodDuration>
           </mmi:userDefinedMaintenanceFrequency>