Changes for page 13 Structure Mapping
Last modified by Helena on 2025/09/10 11:19
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... ... @@ -4,28 +4,28 @@ 4 4 5 5 == 13.1 Introduction == 6 6 7 -The purpose of SDMX structure mapping is to transform datasets from one dimensionality to another. In practice, this means that the input and output datasets conform to different Data Structure Definition. 7 +The purpose of [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] structure mapping is to transform [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] from one dimensionality to another. In practice, this means that the input and output [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] conform to different Data Structure Definition. 8 8 9 -Structure mapping does not alter the observation values and is not intended to perform any aggregations or calculations. 9 +Structure mapping does not alter the [[observation values>>doc:xwiki:Glossary.Observation value.WebHome]] and is not intended to perform any aggregations or calculations. 10 10 11 -An input series maps to: 11 +An input series (% style="color:#2ecc71" %)maps(%%) to: 12 12 13 13 1. Exactly one output series; or 14 -1. Multiple output series with different Series Keys, but the same observation values; or 15 -1. Zero output series where no source rule matches the input Component values. 14 +1. Multiple output series with different [[Series Keys>>doc:xwiki:Glossary.Series key.WebHome]], but the same [[observation values>>doc:xwiki:Glossary.Observation value.WebHome]]; or 15 +1. Zero output series where no source rule matches the input [[Component>>doc:xwiki:Glossary.Component.WebHome]] values. 16 16 17 17 Typical use cases include: 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{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}} to multi-dimensional; and 22 -* Transforming internal datasets with a complex structure to a simpler structure with fewer dimensions suitable for dissemination. 21 +* Transforming unidimensional [[datasets>>doc:xwiki:Glossary.Data set.WebHome]]{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}} to multi-dimensional; and 22 +* Transforming internal [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] with a complex structure to a simpler structure with fewer [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] suitable for dissemination. 23 23 24 24 == 13.2 1-1 structure maps == 25 25 26 -1-1 (pronounced 'one to one') mappings support the simple use case where the value of a Component in the source structure is translated to a different value in the target, usually where different classification schemes are used for the same Concept. 26 +1-1 (pronounced 'one to one') mappings support the simple use case where the value of a [[Component>>doc:xwiki:Glossary.Component.WebHome]] in the source structure is translated to a different value in the target, usually where different classification schemes are used for the same Concept. 27 27 28 -In the example below, ISO 2-character country codes are mapped to their ISO 3character equivalent. 28 +In the example below, ISO 2-character country [[codes>>doc:xwiki:Glossary.Code.WebHome]] are (% style="color:#2ecc71" %)mapped(%%) to their ISO 3character equivalent. 29 29 30 30 (% style="width:666.294px" %) 31 31 |(% style="width:217px" %)**Country**|(% style="width:251px" %)**Alpha-2 code**|(% style="width:195px" %)**Alpha-3 code** ... ... @@ -336,11 +336,13 @@ 336 336 337 337 [[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_295af259.jpg||height="265" width="477"]] 338 338 339 -==== 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 ==== 339 +(% class="wikigeneratedid" id="HFigure24showingthecomponentmapmappingtheSOURCE_DATEDimensiontotheTIME_PERIODdimensionwiththeadditionalinformationonthecomponentmaptodescribethetimeformat" %) 340 +**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** 340 340 341 341 [[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_a3215c79.jpg||height="265" width="480"]] 342 342 343 -==== Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension ==== 344 +(% class="wikigeneratedid" id="HFigure25showinganinputdateformat2CwhoseoutputfrequencyisderivedfromtheoutputvalueoftheFREQDimension" %) 345 +**Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension** 344 344 345 345 === 13.7.2 Numerical based datetime === 346 346 ... ... @@ -440,7 +440,7 @@ 440 440 Validity Period start period=2010 441 441 )))|(% style="width:328px" %)((( 442 442 Set 443 -OBS_CONF=F ** **445 +OBS_CONF=F 444 444 ))) 445 445 446 446 In Rule 1, start period resolves to the start of the 2007 period (2007-01-01T00:00:00), and the end period resolves to the very end of 2009 (2009-12-31T23:59:59). The rule will hold true regardless of the input data frequency. Any observations reporting data for the Indicator XULADS that fall into that time range will have an OBS_CONF value of F. ... ... @@ -542,18 +542,16 @@ 542 542 When the source frequency is lower than the target frequency additional information 3485 can be provided for resolve to start of period, end of period, or mid period, as shown 3486 in the following example: 543 543 ))) 544 544 545 -Source Value Source Mapping Target Frequency Output 547 +(% style="width:892.294px" %) 548 +|(% style="width:165px" %)**Source Value**|(% style="width:133px" %)**Source Mapping**|(% style="width:191px" %)**Target Dimension**|(% style="width:264px" %)**Frequency**|(% style="width:167px" %)**Output** 549 +|(% style="width:165px" %)1981|(% style="width:133px" %)yyyy|(% style="width:191px" %)D – End of Period|(% style="width:264px" %) |(% style="width:167px" %)1981-12-31 546 546 547 -Dimension 548 - 549 - 1981 yyyy D – End of Period 1981-12-31 550 - 551 551 When the start of year is April 1^^st^^ the Structure Map has YearStart=04-01: 552 552 553 -Source Value Source Mapping Target Frequency Output 553 +(% style="width:892.294px" %) 554 +|(% style="width:165px" %)**Source Value**|(% style="width:133px" %)**Source Mapping**|(% style="width:191px" %)**Target Dimension**|(% style="width:264px" %)**Frequency**|(% style="width:167px" %)**Output** 555 +|(% style="width:165px" %)1981|(% style="width:133px" %)yyyy|(% style="width:191px" %)D – End of Period|(% style="width:264px" %) |(% style="width:167px" %)1982-03-31 554 554 555 - Dimension557 +---- 556 556 557 -1981 yyyy D – End of Period 1982-03-31 558 - 559 559 {{putFootnotes/}}