Changes for page SDMX 3.0 Standards. Summary of Major Changes and New Functionality

Last modified by Helena on 2025/09/10 11:19

From 10.2 to 11.1 From 13.1 to 13.2

From version 11.1

edited by Helena
on 2025/05/14 14:45

Change comment: There is no comment for this version

To version 13.1

edited by Helena
on 2025/05/14 14:53

Change comment: There is no comment for this version

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@@ -385,13 +385,13 @@
  * 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.
  * 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.
--=== 3.7 Structure Mapping ===
++== 3.7 Structure Mapping ==
  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.
  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.
--==== Many-to-many source and target components ====
++=== Many-to-many source and target components ===
  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:
@@ -405,19 +405,19 @@
  The Structure Map may now define input or output components which have a fixed value.
--==== Time representations mapping ====
++=== Time representations mapping ===
  Non SDMX time representations may now be described in a Structure Map, allowing them to be mapped into SDMX time formats.
--==== Regular expression and substring mappings ====
++=== Regular expression and substring mappings ===
  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.
--==== Item maps validity period ====
++=== Item maps validity period ===
  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.
--=== 3.8 Constraints ===
++== 3.8 Constraints ==
  Constraints in version 3.0 are modelled using two separate artefacts which replace the version 2.1 content constraint:
@@ -432,17 +432,17 @@
  Attachment constraints have been deprecated due to a lack of use cases.
--=== 3.9 Code List Extension ===
++== 3.9 Code List Extension ==
  In addition to the two new specialised geospatial forms, the option has been added to define a code list as an extension of, or by inheriting codes from, other lists. An optional prefix can be added to inherited codes to disambiguate duplicates.
  This feature allows new code lists to be easily derived from existing lists without the need to make and manually maintain copies. When querying for extended code list structures using the REST API, the option has been added to retrieve either the definition or the materialised list. Traditional literal lists of codes continue to be supported.
--=== 3.10 Discriminated Union of Code Lists ===
++== 3.10 Discriminated Union of Code Lists ==
  Combining code list extension with wildcarded constraints solves the discriminated union of code lists problem where a classification or breakdown has multiple “variants” which are all valid but mutually exclusive. A common example is economic activity where several alternative classification schemes are in use including ISIC revisions 1 to 4 and NACE as used in the European Community.
--=== 3.11 Code Hierarchies ===
++== 3.11 Code Hierarchies ==
  Code hierarchies allow the definition of complex hierarchies of codes from potentially multiple lists for data discovery purposes. Hierarchical Codelist has been deprecated and replaced by two new artefacts: Hierarchy – the actual hierarchy of codes, and Hierarchy Association links hierarchies directly to any other identifiable object, a capability missing 312 from the version 2.1 model. Further, the linkage can be within a particular context, for instance linking a hierarchy to a dimension within the context of a specific Dataflow (dimension REF_AREA in the context of the ECB:EXR Dataflow).