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Changes for page 13 Structure Mapping

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1 -{{box title="**Contents**"}}
2 -{{toc/}}
3 -{{/box}}
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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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5 5  == 13.1 Introduction ==
6 6  
7 7  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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18 18  
19 19  * Transforming received data into a common internal structure;
20 20  * Transforming reported data into the data collector's preferred structure;
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
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
22 22  * 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.
23 23  
24 24  == 13.2 1-1 structure maps ==
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225 225  
226 226  The input 'G' matches on the last rule which is used as a catch-all or default in this example.
227 227  
228 -=== 13. Substrings ===
273 +=== 13.6.2 Substrings ===
229 229  
230 230  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.
231 231  
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278 278  
279 279  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.
280 280  
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:
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:
282 282  
283 283  (% style="width:604.294px" %)
284 284  |(% style="width:172px" %)English (en)|(% style="width:216px" %)Australia (AU)|(% style="width:213px" %)en-AU
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321 321  (% style="width:850.294px" %)
322 322  |(% style="width:125px" %)**Letter**|(% style="width:385px" %)**Date or Time Component**|(% style="width:180px" %)**Presentation**|(% style="width:157px" %)**Examples**
323 323  |(% style="width:125px" %)G|(% style="width:385px" %)Era designator|(% style="width:180px" %)Text|(% style="width:157px" %)AD
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
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
325 325  |(% style="width:125px" %)yyyy|(% style="width:385px" %)Year Full (upper case is Year of Week)|(% style="width:180px" %)Year|(% style="width:157px" %)1996
326 326  |(% style="width:125px" %)MM|(% style="width:385px" %)Month number in year starting with 1|(% style="width:180px" %)Month|(% style="width:157px" %)07
327 327  |(% style="width:125px" %)MMM|(% style="width:385px" %)Month name short|(% style="width:180px" %)Month|(% style="width:157px" %)Jul
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347 347  
348 348  The model is illustrated below:
349 349  
350 -[[image:1750074822764-573.png]]
395 +(% contenteditable="false" tabindex="-1" %)[[image:1750074822764-573.png||data-widget="image"]]
351 351  
352 352  **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?**
353 353  
354 -[[image:1750074865924-797.png]]
399 +(% contenteditable="false" tabindex="-1" %)[[image:1750074865924-797.png||data-widget="image"]]
355 355  
356 356  (% class="wikigeneratedid" id="HFigure25showinganinputdateformat2CwhoseoutputfrequencyisderivedfromtheoutputvalueoftheFREQDimension" %)
357 357  **Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension**
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381 381  
382 382  The model is illustrated below:
383 383  
384 -[[image:1750074994887-415.png]]
429 +(% contenteditable="false" tabindex="-1" %)[[image:1750074994887-415.png||data-widget="image"]]
385 385  
386 386  **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 **
387 387  
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515 515  |(% style="width:182px" %)[0-2]|(% style="width:151px" %)A
516 516  |(% style="width:182px" %)[3-4]|(% style="width:151px" %)B
517 517  
518 -=== 13. Observation Attributes for Time Period ===
563 +=== 13.10.3 Observation Attributes for Time Period ===
519 519  
520 520  This use case is where a specific observation for a specific [[time period>>doc:sdmx:Glossary.Time period.WebHome]] has an [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] value.
521 521  
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525 525  |(% style="width:201px" %)XULADS|(% style="width:192px" %)2009|(% style="width:225px" %)C
526 526  |(% style="width:201px" %)XULADS|(% style="width:192px" %)2010|(% style="width:225px" %)C
527 527  
528 -Or using a validity period on the Representation Mapping:
573 +Or using a validity period on the [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] Mapping:
529 529  
530 -Input INDICATOR Valid From/ Valid To Output OBS_CONF
575 +(% style="width:629.294px" %)
576 +|(% style="width:202px" %)Input INDICATOR|(% style="width:197px" %)Valid From/ Valid To|(% style="width:227px" %) Output OBS_CONF
577 +|(% style="width:202px" %)XULADS|(% style="width:197px" %) 2008/2010|(% style="width:227px" %)С
531 531  
532 -XULADS 2008/2010 C
579 +=== 13.10.4 Time mapping ===
533 533  
534 -=== 13. Time mapping ===
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.
535 535  
536 -This use case is to create a time period from an input that does not respect SDMX Time Formats.
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:
537 537  
538 -The Component Mapping from SYS_TIME to TIME_PERIOD specifies itself as a time mapping with the following details:
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
539 539  
540 -|Source Value|Source Mapping|Target Frequency|Output
541 -|18/07/1981|dd/MM/yyyy|A|1981
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]].
542 542  
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.
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)
544 544  
545 -Source Value Source Mapping Target Frequency Output
595 + When the source is a numerical format.
546 546  
547 -Dimension
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
548 548  
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
553 -
554 -FREQ
555 -)))|Output
556 -|1589808220 1970 millisecond|M|2020-05
557 -
558 558  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:
559 559  
560 - Source Value Source Mapping Target Frequency Output
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
561 561  
562 -Dimension
607 +When the start of year is April 1^^st^^ the Structure (% style="color:#e74c3c" %)Map(%%) has YearStart=04-01:
563 563  
564 - 1981 yyyy D – End of Period 1981-12-31
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
565 565  
566 -
567 -When the start of year is April 1^^st^^ the Structure Map has YearStart=04-01:
568 -
569 - Source Value Source Mapping Target Frequency Output
570 -
571 -Dimension
572 -
573 573  ----
574 574  
575 -{{putFootnotes/}}
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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
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