Changes for page SDMX 3.0 Standards. Summary of Major Changes and New Functionality
Last modified by Helena on 2025/09/10 11:19
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... ... @@ -349,63 +349,61 @@ 349 349 350 350 (% class="wikigeneratedid" id="HMulti-valuemeasuresandattributes" %) 351 351 **Multi-value measures and attributes** 352 -Both [[measures>>doc:xwiki:Glossary.Measure.WebHome]]and[[attributes>>doc:xwiki:Glossary.Attribute.WebHome]]have been extended with the option to take ‘arrays’ of 193 multiple coded or uncoded values. This supports use cases like multiple observation 194 status flags. New //minOccurs// and //maxOccurs// properties define the valid number of 195 values. The //usage// property separately defines whether the[[measure>>doc:xwiki:Glossary.Measure.WebHome]]or[[attribute>>doc:xwiki:Glossary.Attribute.WebHome]]is //mandatory// or optional. In the[[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]][[measure>>doc:xwiki:Glossary.Measure.WebHome]]example above, the properties //minOccurs=”1” maxOccurs=”1” usage=”mandatory”// specify that OBS_VALUE must be 198 reported, and can only consist of a single value.352 +Both measures and attributes have been extended with the option to take ‘arrays’ of 193 multiple coded or uncoded values. This supports use cases like multiple observation 194 status flags. New //minOccurs// and //maxOccurs// properties define the valid number of 195 values. The //usage// property separately defines whether the measure or attribute is //mandatory// or optional. In the SDMX-ML measure example above, the properties //minOccurs=”1” maxOccurs=”1” usage=”mandatory”// specify that OBS_VALUE must be 198 reported, and can only consist of a single value. 353 353 354 354 (% class="wikigeneratedid" id="HAttributesrelationshiptomeasures" %) 355 355 **Attributes relationship to measures** 356 -In addition to attaching [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]]to a specific(% style="color:#2ecc71" %)level(%%)within the[[dataset>>doc:xwiki:Glossary.Data set.WebHome]], their relationship 202 to[[measures>>doc:xwiki:Glossary.Measure.WebHome]]can also be defined.356 +In addition to attaching attributes to a specific level within the dataset, their relationship 202 to measures can also be defined. 357 357 358 358 (% class="wikigeneratedid" id="HValuelists" %) 359 359 **Value lists** 360 -Value lists help in modelling microdata by providing an enumeration similar to [[code lists>>doc:xwiki:Glossary.Codelist.WebHome]]206 but allowing any string values without being restricted to the rules of[[SDMX>>doc:xwiki:Glossary.Statisticaldata and metadata exchange.WebHome]]identifiers. That allows ValueItems (the equivalent to[[Code>>doc:xwiki:Glossary.Code.WebHome]]) to contain symbols like ‘¥’ and ‘€’, but also means they are not identifiable.360 +Value lists help in modelling microdata by providing an enumeration similar to code lists 206 but allowing any string values without being restricted to the rules of SDMX identifiers. That allows ValueItems (the equivalent to Code) to contain symbols like ‘¥’ and ‘€’, but also means they are not identifiable. 361 361 362 362 == 3.6 Geospatial Data Exchange == 363 363 364 -The (% style="color:#2ecc71" %)version(%%)3.0 model has been extended to provide explicit support for geospatial data.364 +The version 3.0 model has been extended to provide explicit support for geospatial data. 365 365 366 366 (% class="wikigeneratedid" id="HGeospatialInformationtype" %) 367 367 **GeospatialInformation type** 368 -A new GeospatialInformation string type has been added which can be used as the [[representation>>doc:xwiki:Glossary.Representation.WebHome]]for any[[dimension>>doc:xwiki:Glossary.Dimension.WebHome]],[[attribute>>doc:xwiki:Glossary.Attribute.WebHome]]or measure[[component>>doc:xwiki:Glossary.Component.WebHome]].The value which is a string expression conforming to the syntax defined in Section 6 of the technical specifications precisely defines a ‘Geo Feature Set’ – a collection of geographical features like points, lines or polygons. Its use is recommended in conjunction with the “GEO_FEATURE_SET”(% style="color:#2ecc71" %)concept(%%)role.368 +A new GeospatialInformation string type has been added which can be used as the 214 representation for any dimension, attribute or measure component. The value which is a 215 string expression conforming to the syntax defined in Section 6 of the technical 216 specifications precisely defines a ‘Geo Feature Set’ – a collection of geographical 217 features like points, lines or polygons. Its use is recommended in conjunction with the “GEO_FEATURE_SET” concept role. 369 369 370 370 (% class="wikigeneratedid" id="HGeospatialcodelists" %) 371 371 **Geospatial code lists** 372 +Two new specialised types of code list have been added where the definition of each code includes additional geospatial information in addition to the standard ID, name and description: 372 372 373 -(% class="wikigeneratedid" id="HGeospatialcodelists" %) 374 -Two new specialised types of [[code list>>doc:xwiki:Glossary.Code list.WebHome]] have been added where the definition of each [[code>>doc:xwiki:Glossary.Code.WebHome]] includes additional geospatial information in addition to the standard ID, name and description: 375 - 376 376 * GeographicCodelist – each item includes an element to represent a specific Geo Feature Set which is described using the same expression syntax as for GeospatialInformation type. 377 -* GeoGridCodelist – A [[code list>>doc:xwiki:Glossary.Codelist.WebHome]]defining a geographical grid composed of cells representing regular squared portions of the Earth. Each item references a cell within the grid.375 +* GeoGridCodelist – A code list defining a geographical grid composed of cells representing regular squared portions of the Earth. Each item references a cell within the grid. 378 378 379 379 == 3.7 Structure Mapping == 380 380 381 -The [[Structure Set>>doc:xwiki:Glossary.Structureset.WebHome]]in(% style="color:#2ecc71" %)version(%%)2.1 is a container for many mapping structures including Data Structure(% style="color:#2ecc71" %)Map(%%), Codelist(% style="color:#2ecc71" %)Map(%%)and(% style="color:#2ecc71" %)Concept(%%)(% style="color:#2ecc71" %)Map(%%). For(% style="color:#2ecc71" %)version(%%)3.0 the[[Structure Set>>doc:xwiki:Glossary.Structureset.WebHome]] [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]]has been deprecated and replaced with a number of new maintainables giving better flexibility and reusability, specifically: Structure(% style="color:#2ecc71" %)Map(%%),[[Concept Scheme>>doc:xwiki:Glossary.Conceptscheme.WebHome]] (% style="color:#2ecc71" %)Map(%%),[[Representation>>doc:xwiki:Glossary.Representation.WebHome]](% style="color:#2ecc71" %)Map(%%),[[Reporting Taxonomy>>doc:xwiki:Glossary.Reportingtaxonomy.WebHome]] (% style="color:#2ecc71" %)Map(%%),[[Category Scheme>>doc:xwiki:Glossary.Categoryscheme.WebHome]] (% style="color:#2ecc71" %)Map(%%)and Organisation Scheme(% style="color:#2ecc71" %)Map(%%).379 +The Structure Set in version 2.1 is a container for many mapping structures including Data Structure Map, Codelist Map and Concept Map. For version 3.0 the Structure Set artefact has been deprecated and replaced with a number of new maintainables giving better flexibility and reusability, specifically: Structure Map, Concept Scheme Map, Representation Map, Reporting Taxonomy Map, Category Scheme Map and Organisation Scheme Map. 382 382 383 -The (% style="color:#2ecc71" %)version(%%)2.1 Codelist(% style="color:#2ecc71" %)Map(%%)been replaced with[[Representation>>doc:xwiki:Glossary.Representation.WebHome]](% style="color:#2ecc71" %)Map(%%)which allows mappings to be defined between any combination of[[Code Lists>>doc:xwiki:Glossary.Code list.WebHome]], Value Lists and noncoded[[representations>>doc:xwiki:Glossary.Representation.WebHome]]such as text strings and numbers.381 +The version 2.1 Codelist Map been replaced with Representation Map which allows mappings to be defined between any combination of Code Lists, Value Lists and noncoded representations such as text strings and numbers. 384 384 385 385 (% class="wikigeneratedid" id="HMany-to-manysourceandtargetcomponents" %) 386 386 **Many-to-many source and target components** 387 -Structure mapping rules may be defined with both multiple source [[components>>doc:xwiki:Glossary.Component.WebHome]]and multiple target[[components>>doc:xwiki:Glossary.Component.WebHome]]in contrast to(% style="color:#2ecc71" %)version(%%)2.1 where only one source and target was allowed. That supports many-to-many (n-n) mapping use cases where the output of a mapping rule may be dependent on the combination of a number of input[[components>>doc:xwiki:Glossary.Component.WebHome]].For instance:385 +Structure mapping rules may be defined with both multiple source components and multiple target components in contrast to version 2.1 where only one source and target was allowed. That supports many-to-many (n-n) mapping use cases where the output of a mapping rule may be dependent on the combination of a number of input components. For instance: 388 388 389 -Set the output [[component>>doc:xwiki:Glossary.Component.WebHome]]INDICATOR=”DE_A” if the input[[components>>doc:xwiki:Glossary.Component.WebHome]]are FREQ=”A” and REF_AREA=”DE”.387 +Set the output component INDICATOR=”DE_A” if the input components are FREQ=”A” and REF_AREA=”DE”. 390 390 391 -Similarly, an n-n rule may also set the values of any number of output [[components>>doc:xwiki:Glossary.Component.WebHome]]:389 +Similarly, an n-n rule may also set the values of any number of output components: 392 392 393 -Set the output [[components>>doc:xwiki:Glossary.Component.WebHome]]FREQ=”A”, REF_AREA=”DE” if the input[[component>>doc:xwiki:Glossary.Component.WebHome]]INDICATOR=”DE_A”.391 +Set the output components FREQ=”A”, REF_AREA=”DE” if the input component INDICATOR=”DE_A”. 394 394 395 395 **Fixed source and target** 396 -The Structure (% style="color:#2ecc71" %)Map(%%)may now define input or output[[components>>doc:xwiki:Glossary.Component.WebHome]]which have a fixed value.394 +The Structure Map may now define input or output components which have a fixed value. 397 397 398 398 (% class="wikigeneratedid" id="HTimerepresentationsmapping" %) 399 399 **Time representations mapping** 400 -Non [[SDMX>>doc:xwiki:Glossary.Statisticaldata and metadata exchange.WebHome]] time[[representations>>doc:xwiki:Glossary.Representation.WebHome]]may now be described in a Structure(% style="color:#2ecc71" %)Map(%%), allowing them to be(% style="color:#2ecc71" %)mapped(%%)into[[SDMX>>doc:xwiki:Glossary.Statisticaldata and metadata exchange.WebHome]] [[time formats>>doc:xwiki:Glossary.Time format.WebHome]].398 +Non SDMX time representations may now be described in a Structure Map, allowing them to be mapped into SDMX time formats. 401 401 402 402 (% class="wikigeneratedid" id="HRegularexpressionandsubstringmappings" %) 403 403 **Regular expression and substring mappings** 404 -All item (% style="color:#2ecc71" %)maps(%%)allow the use of regular expressions and substrings to match source values, specifically:[[Concept Scheme>>doc:xwiki:Glossary.Conceptscheme.WebHome]] (% style="color:#2ecc71" %)Map(%%),[[Reporting Taxonomy>>doc:xwiki:Glossary.Reportingtaxonomy.WebHome]] (% style="color:#2ecc71" %)Map(%%),[[Category Scheme>>doc:xwiki:Glossary.Categoryscheme.WebHome]] (% style="color:#2ecc71" %)Map(%%)and Organisation Scheme(% style="color:#2ecc71" %)Map(%%).402 +All item maps allow the use of regular expressions and substrings to match source values, specifically: Concept Scheme Map, Reporting Taxonomy Map, Category Scheme Map and Organisation Scheme Map. 405 405 406 406 (% class="wikigeneratedid" id="HItemmapsvalidityperiod" %) 407 407 **Item maps validity period** 408 -Item (% style="color:#2ecc71" %)maps(%%)may further define the period for which the mapping is valid, meaning the mapping rule will only be applied if the row of information being(% style="color:#2ecc71" %)mapped(%%)is within the period.406 +Item maps may further define the period for which the mapping is valid, meaning the mapping rule will only be applied if the row of information being mapped is within the period. 409 409 410 410 == 3.8 Constraints == 411 411