Changes for page 13 Structure Mapping

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9	9
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13		-(((
14		-**Contents**
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25		-*
26		-** [[13.1 Introduction>>doc:null||anchor="H13.1Introduction"]]
27		-** [[13.2 1-1 structure maps>>doc:null||anchor="H13.21-1structuremaps"]]
28		-** [[13.3 N-n structure maps>>doc:null||anchor="H13.3N-nstructuremaps"]]
29		-** [[13.4 Ambiguous mapping rules>>doc:null||anchor="H13.4Ambiguousmappingrules"]]
30		-** [[13.5 Representation maps>>doc:null||anchor="H13.5Representationmaps"]]
31		-** [[13.6 Regular expression and substring rules>>doc:null||anchor="H13.6Regularexpressionandsubstringrules"]]
32		-*** [[13.6.1 Regular expressions>>doc:null||anchor="H13.6.1Regularexpressions"]]
33		-*** [[13.6.2 Substrings>>doc:null||anchor="H13.6.2Substrings"]]
34		-** [[13.7 Mapping non-SDMX time formats to SDMX formats>>doc:null||anchor="H13.7Mappingnon-SDMXtimeformatstoSDMXformats"]]
35		-*** [[13.7.1 Pattern based dates>>doc:null||anchor="H13.7.1Patternbaseddates"]]
36		-*** [[13.7.2 Numerical based datetime>>doc:null||anchor="H13.7.2Numericalbaseddatetime"]]
37		-*** [[13.7.3 Mapping more complex time inputs>>doc:null||anchor="H13.7.3Mappingmorecomplextimeinputs"]]
38		-** [[13.8 Using TIME_PERIOD in mapping rules>>doc:null||anchor="H13.8UsingTIME_PERIODinmappingrules"]]
39		-** [[13.9 Time span mapping rules using validity periods>>doc:null||anchor="H13.9Timespanmappingrulesusingvalidityperiods"]]
40		-** [[13.10 Mapping examples>>doc:null||anchor="H13.10Mappingexamples"]]
41		-*** [[13.10.1 Many to one mapping (N3513 -1)>>doc:null||anchor="H13.10.1A0Manytoonemapping28N3513-129"]]
42		-*** [[13.10.2 Mapping other data types to Code Id>>doc:null||anchor="H13.10.2MappingotherdatatypestoCodeId"]]
43		-*** [[13.10.3 Observation Attributes for Time Period>>doc:null||anchor="H13.10.3ObservationAttributesforTimePeriod"]]
44		-*** [[13.10.4 Time mapping>>doc:null||anchor="H13.10.4Timemapping"]]
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50	50	== 13.1 Introduction ==
51	51
52	52	The purpose of [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] structure mapping is to transform [[datasets>>doc:sdmx:Glossary.Data set.WebHome]] from one dimensionality to another. In practice, this means that the input and output [[datasets>>doc:sdmx:Glossary.Data set.WebHome]] conform to different Data Structure Definition.
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63	63
64	64	* Transforming received data into a common internal structure;
65	65	* Transforming reported data into the data collector's preferred structure;
66		-* Transforming unidimensional [[datasets>>doc:sdmx:Glossary.Data set.WebHome]](% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|Unidimensional datasets are those with a single 'indicator' or 'series code' dimension." data-widget="xwiki-macro" class="macro hidden macro-placeholder" %)macro:footnote(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|Unidimensional datasets are those with a single 'indicator' or 'series code' dimension." data-widget="xwiki-macro" class="macro footnoteRef" id="x_footnote_ref_1" %)^^[[1>>doc:null||anchor="x_footnote_1"]]^^(%%) to multi-dimensional; and
	21	+* Transforming unidimensional [[datasets>>doc:sdmx:Glossary.Data set.WebHome]]{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}} to multi-dimensional; and
67	67	* Transforming internal [[datasets>>doc:sdmx:Glossary.Data set.WebHome]] with a complex structure to a simpler structure with fewer [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] suitable for dissemination.
68	68
69	69	== 13.2 1-1 structure maps ==
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270	270
271	271	The input 'G' matches on the last rule which is used as a catch-all or default in this example.
272	272
273		-=== 13.6.2 Substrings ===
	228	+=== 13. Substrings ===
274	274
275	275	Substrings provide an alternative to regular expressions where the required section of an input value can be described using the number of the starting character, and the length of the substring in characters. The first character is at position 1.
276	276
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323	323
324	324	Date and [[time formats>>doc:sdmx:Glossary.Time format.WebHome]] are specified by date and time pattern strings based on Java's Simple Date Format. Within date and time pattern strings, unquoted letters from 'A' to 'Z' and from 'a' to 'z' are interpreted as pattern letters representing the [[components>>doc:sdmx:Glossary.Component.WebHome]] of a date or time string. Text can be quoted using single quotes (') to avoid interpretation. "''" represents a single quote. All other characters are not interpreted; they're simply copied into the output string during formatting or matched against the input string during parsing.
325	325
326		-Due to the fact that dates may differ per locale, an optional property, defining the locale of the pattern, is provided. This would assist processing of source dates, according to the given locale(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|A list of commonly used locales can be found in the Java supported locales: https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html" data-widget="xwiki-macro" class="macro hidden macro-placeholder" %)macro:footnote(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|A list of commonly used locales can be found in the Java supported locales: https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html" data-widget="xwiki-macro" class="macro footnoteRef" id="x_footnote_ref_2" %)^^[[2>>doc:null||anchor="x_footnote_2"]]^^(%%). An indicative list of examples is presented in the following table:
	281	+Due to the fact that dates may differ per locale, an optional property, defining the locale of the pattern, is provided. This would assist processing of source dates, according to the given locale{{footnote}} A list of commonly used locales can be found in the Java supported locales: https://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html{{/footnote}}. An indicative list of examples is presented in the following table:
327	327
328	328	(% style="width:604.294px" %)
329	329	|(% style="width:172px" %)English (en)|(% style="width:216px" %)Australia (AU)|(% style="width:213px" %)en-AU
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366	366	(% style="width:850.294px" %)
367	367	|(% style="width:125px" %)**Letter**|(% style="width:385px" %)**Date or Time Component**|(% style="width:180px" %)**Presentation**|(% style="width:157px" %)**Examples**
368	368	|(% style="width:125px" %)G|(% style="width:385px" %)Era designator|(% style="width:180px" %)Text|(% style="width:157px" %)AD
369		-|(% style="width:125px" %)yy|(% style="width:385px" %)Year short (upper case is Year of Week(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years" data-widget="xwiki-macro" class="macro hidden macro-placeholder" %)macro:footnote(% contenteditable="false" tabindex="-1" data-macro="startmacro:footnote|-||-|yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years" data-widget="xwiki-macro" class="macro footnoteRef" id="x_footnote_ref_3" %)^^[[3>>doc:null||anchor="x_footnote_3"]]^^(%%))|(% style="width:180px" %)Year|(% style="width:157px" %)96
	324	+|(% style="width:125px" %)yy|(% style="width:385px" %)Year short (upper case is Year of Week{{footnote}}yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years{{/footnote}})|(% style="width:180px" %)Year|(% style="width:157px" %)96
370	370	|(% style="width:125px" %)yyyy|(% style="width:385px" %)Year Full (upper case is Year of Week)|(% style="width:180px" %)Year|(% style="width:157px" %)1996
371	371	|(% style="width:125px" %)MM|(% style="width:385px" %)Month number in year starting with 1|(% style="width:180px" %)Month|(% style="width:157px" %)07
372	372	|(% style="width:125px" %)MMM|(% style="width:385px" %)Month name short|(% style="width:180px" %)Month|(% style="width:157px" %)Jul
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392	392
393	393	The model is illustrated below:
394	394
395		-(% contenteditable="false" tabindex="-1" %)[[image:1750074822764-573.png||data-widget="image"]]
	350	+[[image:1750074822764-573.png]]
396	396
397	397	**Figure 24 showing the component map mapping the SOURCE_DATE Dimension to the TIME_PERIOD dimension with the additional information on the component map to describe the time format?**
398	398
399		-(% contenteditable="false" tabindex="-1" %)[[image:1750074865924-797.png||data-widget="image"]]
	354	+[[image:1750074865924-797.png]]
400	400
401	401	(% class="wikigeneratedid" id="HFigure25showinganinputdateformat2CwhoseoutputfrequencyisderivedfromtheoutputvalueoftheFREQDimension" %)
402	402	**Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension**
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426	426
427	427	The model is illustrated below:
428	428
429		-(% contenteditable="false" tabindex="-1" %)[[image:1750074994887-415.png||data-widget="image"]]
	384	+[[image:1750074994887-415.png]]
430	430
431	431	**Figure 26 showing the component map mapping the SOURCE_DATE Dimension to the TIME_PERIOD Dimension with the additional information on the component map to describe the numerical datetime system in use **
432	432
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576	576	|(% style="width:202px" %)Input INDICATOR|(% style="width:197px" %)Valid From/ Valid To|(% style="width:227px" %) Output OBS_CONF
577	577	|(% style="width:202px" %)XULADS|(% style="width:197px" %) 2008/2010|(% style="width:227px" %)С
578	578
579		-=== 13.10.4 Time mapping ===
	534	+=== 13.10.4  Time mapping ===
580	580
581		-This use case is to create a [[time period>>doc:sdmx:Glossary.Time period.WebHome]] from an input that does not respect [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Time Formats.
	536	+This use case is to create a time period from an input that does not respect SDMX Time Formats.
582	582
583		-The [[Component>>doc:sdmx:Glossary.Component.WebHome]] Mapping from SYS_TIME to TIME_PERIOD specifies itself as a time mapping with the following details:
	538	+The Component Mapping from SYS_TIME to TIME_PERIOD specifies itself as a time mapping with the following details:
584	584
585		-(% style="width:652.294px" %)
586		-|(% style="width:139px" %)Source Value|(% style="width:165px" %)Source Mapping|(% style="width:182px" %)Target Frequency|(% style="width:163px" %)Output
587		-|(% style="width:139px" %)18/07/1981|(% style="width:165px" %)dd/MM/yyyy|(% style="width:182px" %)A|(% style="width:163px" %)1981
	540	+|Source Value|Source Mapping|Target Frequency|Output
	541	+|18/07/1981|dd/MM/yyyy|A|1981
588	588
589		-When the target frequency is based on another target [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] value, in this example the value of the FREQ [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] in the target [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]].
	543	+When the target frequency is based on another target Dimension value, in this example the value of the FREQ Dimension in the target DSD.
590	590
591		-(% style="width:658.294px" %)
592		-|(% style="width:143px" %)Source Value|(% style="width:163px" %) Source Mapping|(% style="width:176px" %)Target Dimension|(% style="width:173px" %)Frequency Output
593		-|(% style="width:143px" %)18/07/1981|(% style="width:163px" %)dd/MM/yyyy|(% style="width:176px" %)FREQ|(% style="width:173px" %)1981-07-18 (when FREQ=D)
	545	+Source Value Source Mapping Target Frequency Output
594	594
595		- When the source is a numerical format.
	547	+Dimension
596	596
597		-(% style="width:658.294px" %)
598		-|(% style="width:143px" %)Source Value|(% style="width:163px" %) Start Period|(% style="width:176px" %)Interval|(% style="width:176px" %)Target FREQ|(% style="width:173px" %) Output
599		-|(% style="width:143px" %)1589808220|(% style="width:163px" %)1970|(% style="width:176px" %) millisecond|(% style="width:176px" %)M|(% style="width:173px" %)2020-05
	549	+|18/07/1981 dd/MM/yyyy FREQ| |1981-07-18 (when FREQ=D)
	550	+| When the source is a numerical format| |
	551	+|Source Value Start Period Interval|(((
	552	+Target
600	600
	554	+FREQ
	555	+)))|Output
	556	+|1589808220 1970 millisecond|M|2020-05
	557	+
601	601	When the source frequency is lower than the target frequency additional information 3568 can be provided for resolve to start of period, end of period, or mid period, as shown 3569 in the following example:
602	602
603		-(% style="width:666.294px" %)
604		-|(% style="width:131px" %) Source Value|(% style="width:143px" %)Source Mapping|(% style="width:149px" %)Target Dimension|(% style="width:114px" %)Frequency|(% style="width:126px" %)Output
605		-|(% style="width:131px" %)1981|(% style="width:143px" %)yyyy|(% style="width:149px" %)D – End of Period|(% style="width:114px" %) |(% style="width:126px" %)1981-12-31
	560	+ Source Value Source Mapping Target Frequency Output
606	606
607		-When the start of year is April 1^^st^^ the Structure (% style="color:#e74c3c" %)Map(%%) has YearStart=04-01:
	562	+Dimension
608	608
609		-(% style="width:666.294px" %)
610		-|(% style="width:131px" %) Source Value|(% style="width:143px" %)Source Mapping|(% style="width:149px" %)Target Dimension|(% style="width:114px" %)Frequency|(% style="width:126px" %)Output
611		-|(% style="width:131px" %)1981|(% style="width:143px" %)yyyy|(% style="width:149px" %)D – End of Period|(% style="width:114px" %) |(% style="width:126px" %)1982-03-31
	564	+ 1981 yyyy D – End of Period 1981-12-31
612	612
613		-----
614	614
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	567	+When the start of year is April 1^^st^^ the Structure Map has YearStart=04-01:
623	623
624		-(% class="footnotes" %)
625		-1. [[^>>doc:null||anchor="x_footnote_ref_1" id="x_footnote_1" class="footnoteBackRef"]] Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.
626		-1. [[^>>doc:null||anchor="x_footnote_ref_2" id="x_footnote_2" class="footnoteBackRef"]] A list of commonly used locales can be found in the Java supported locales: https~://www.oracle.com/java/technologies/javase/jdk8-jre8-suported-locales.html//
627		-1. [[^>>doc:null||anchor="x_footnote_ref_3" id="x_footnote_3" class="footnoteBackRef"]] yyyy represents the calendar year while YYYY represents the year of the week, which is only relevant for 53 week years
628		-)))
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	569	+ Source Value Source Mapping Target Frequency Output
	570	+
	571	+Dimension
	572	+
	573	+----
	574	+
	575	+{{putFootnotes/}}