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 7.3 to 7.4 From 10.2 to 11.1

From version 7.4

edited by Helena
on 2025/05/14 13:35

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To version 10.2

edited by Helena
on 2025/05/14 14:41

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Summary

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- SUZ.Methodology.Code.MethodologyClass[0]

Details

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Title

@@ -1,1 +1,1 @@
--1 Overview
++SDMX STANDARDS

Parent

...	...	@@ -1,0 +1,1 @@
	1	+Methodology.WebHome

Content

@@ -4,9 +4,10 @@
  **Revision History**
--|Revision|Date|Contents
--|DRAFT 1.0|May 2021|Draft release updated for SDMX 3.0 for public consultation
--|1.0|October 2021|Public Release for SDMX 3.0
++(% style="width:738.039px" %)
++|(% style="width:187px" %)Revision|(% style="width:157px" %)Date|(% style="width:390px" %)Contents
++|(% style="width:187px" %)DRAFT 1.0|(% style="width:157px" %)May 2021|(% style="width:390px" %)Draft release updated for SDMX 3.0 for public consultation
++|(% style="width:187px" %)1.0|(% style="width:157px" %)October 2021|(% style="width:390px" %)Public Release for SDMX 3.0
  = 1 Overview =
@@ -87,8 +87,6 @@
  == //2.2 Transmission Formats// ==
--:
--
  (((
  (% style="width:952.039px" %)
  |(% style="width:130px" %)**SDMX-ML**|(% style="width:820px" %)(((
@@ -107,10 +107,7 @@
  The SDMX-ML structure message is not backwardly compatible primarily due to:
  * Changes to the information model
--* Changes to the way the structures are organised into
--
--‘collections’ within the message
--
++* Changes to the way the structures are organised into ‘collections’ within the message
  * Deprecation of the Agency, ID, Version option for referencing of structures in messages
  )))
  |(% style="width:130px" %)**SDMX-JSON**|(% style="width:820px" %)(((
@@ -119,20 +119,15 @@
  The JSON structure message is not backwardly compatible primarily due to:
  * Changes to the information model
--* Changes to the way the structures are organised into
--
--‘collections’ within the message
--
++* Changes to the way the structures are organised into ‘collections’ within the message
  * Deprecation of the Agency, ID, Version option for referencing of structures in messages
  )))
  |(% style="width:130px" %)**SDMX-EDI**|(% style="width:820px" %)The EDI format for both structures and data has been deprecated.
--|(% style="width:130px" %)**SDMX-CSV**|(% style="width:820px" %)The CSV data and reference metadata messages are not backwardly compatible with those under version 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.** &nbsp;&nbsp;&nbsp;&nbsp;**
++|(% style="width:130px" %)**SDMX-CSV**|(% style="width:820px" %)The CSV data and reference metadata messages are not backwardly compatible with those under version 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.
  )))
  == //2.3 Information Model// ==
--:
--
  (((
  (% style="width:955.039px" %)
  |(% style="width:132px" %)**Data Structure Definition**|(% style="width:819px" %)(((
@@ -160,10 +160,7 @@
  //Conversion guidance for implementors//
--A version 2.1 Metadata Structure Definition can be converted to the version 3.0 model under some circumstances, but target information is either lost or has to be translated into a metadataflow. Further, conversion of a Data Structure Definition for collecting reference metadata against a dataset would need to make changes to the dataset’s Data Structure Definition. As the Data Structure Definition may not actually be specified, judgement would need to be taken, perhaps determining the most likely candidate by examining which
--)))
--|(% style="width:132px" %) |(% style="width:819px" %)(((
--already have metadata reported against their datasets. A 2.1 metadata report could be converted to a version 3.0 Metadataset if it is attached to a structure, but requires a Metadata Provision Agreement which would need to be created if not already in existence.
++A version 2.1 Metadata Structure Definition can be converted to the version 3.0 model under some circumstances, but target information is either lost or has to be translated into a metadataflow. Further, conversion of a Data Structure Definition for collecting reference metadata against a dataset would need to make changes to the dataset’s Data Structure Definition. As the Data Structure Definition may not actually be specified, judgement would need to be taken, perhaps determining the most likely candidate by examining which already have metadata reported against their datasets. A 2.1 metadata report could be converted to a version 3.0 Metadataset if it is attached to a structure, but requires a Metadata Provision Agreement which would need to be created if not already in existence.
  Conversion from the version 3.0 model to version 2.1 cannot be performed reliably. The process would need target information to be derived from analysis of the Metadataflows and Metadata Provision Agreements. Depending on the complexity it may not be possible to express that information in a version 2.1 Data Structure Definition.
  )))
@@ -227,7 +227,8 @@
  Removed Maintainable Artefacts
  * Structure Set – replaced by Structure Map and the four item scheme maps
--* Hierarchical Codelist – replaced by Hierarchy and Hierarchy Association • Constraint – replaced by Data Constraint and Metadata Constraint
++* Hierarchical Codelist – replaced by Hierarchy and Hierarchy Association
++* Constraint – replaced by Data Constraint and Metadata Constraint
  Changed Maintainable Artefacts
@@ -241,7 +241,7 @@
  * GeospatialInformation – a string type where the value is an expression defining a set of geographical features using a purpose-designed syntax
--== //3.3 Areas Unchanged from Version 2.1// ==
++== 3.3 Areas Unchanged from Version 2.1 ==
  The following areas of the information model are unchanged from version 2.1:
@@ -254,7 +254,7 @@
  * Reporting taxonomy
  * Process
--== //3.4 Reference Metadata// ==
++== 3.4 Reference Metadata ==
  Reference metadata has been substantially re-designed for version 3.0 to simplify the model and better support practical use cases.
@@ -283,83 +283,45 @@
  * SOURCE_AGENCY – a multi-value data attribute
  <Obs xsi:type="dsd:ObsType" OBS_VALUE="112" OBS_STAUS=”A” TIME_PERIOD="2010-09">
--
  <!—- complex multi-value and multi-lingual data attributes ~-~->
--
  <Comp id="TITLE" xsi:type="ns1:TITLE_ATTRIBUTE">
--
  <Value>
--
  <common:Text xml:lang="en">Some English Text</common:Text>
--
  <common:Text xml:lang="fr">Quelques textes en anglais</common:Text>
--
  </Value>
--
  </Comp>
  <Comp id="SOURCE_AGENCY" xsi:type="ns1:SOURCE_AGENCY_ATTRIBUTE">
--
  <Value>4F0</Value>
--
  <Value>4D0</Value>
--
  <Value>CZ2</Value>
--
  </Comp>
--
  <!—- metadata attributes are reported like in metadata messages ~-~->
--
  <Metadata>
--
  <Attribute id="COLLECTION">
--
  <Attribute id="METHOD">
--
  <Text lang="en">AAA</Text>
--
  </Attribute>
--
  </Attribute>
--
  <Attribute id="CONTACT">
--
  <Value>CONTACT 1</Value>
--
  <Attribute id="NAME">
--
  <Value>Contact 1 Name 1</Value>
--
  </Attribute>
--
  <Attribute id="NAME">
--
  <Value>Contact 1 Name 2</Value>
--
  </Attribute>
--
  </Attribute>
--
  <Attribute id="CONTACT">
--
  <Value>CONTACT 2</Value>
--
  <Attribute id="NAME">
--
  <Value>Contact 2 Name 1</Value>
--
  </Attribute>
--
  <Attribute id="NAME">
--
  <Value>Contact 2 Name 2</Value>
--
  </Attribute>
--
  </Attribute>
--
  </Metadata>
--
  </Obs>
  === New - Metadata Provision Agreement ===
@@ -374,7 +374,7 @@
  A Metadataset now has mandatory identification information, (owner id, id, version) enabling metadata providers to uniquely identify their reports for create, update or delete maintenance operations.
--== //3.5 Microdata Exchange// ==
++== 3.5 Microdata Exchange ==
  Several changes have been made the Data Structure Definition to support microdata use cases in addition to aggregated time series.
@@ -432,7 +432,7 @@
  That allows ValueItems (the equivalent to Code) to contain symbols like ‘¥’ and ‘€’, but 208 also means they are not identifiable.
--== //3.6 Geospatial Data Exchange// ==
++== 3.6 Geospatial Data Exchange ==
  The version 3.0 model has been extended to provide explicit support for geospatial data.
@@ -447,7 +447,7 @@
  * 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.
@@ -479,7 +479,7 @@
  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:
@@ -494,17 +494,17 @@
  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).

SUZ.Methodology.Code.MethodologyClass[0]