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 19.5 to 19.6 From 19.8 to 20.1

From version 19.6

edited by Helena
on 2025/05/16 15:58

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To version 19.8

edited by Helena
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@@ -409,38 +409,38 @@
  == 3.8 Constraints ==
--Constraints in version 3.0 are modelled using two separate artefacts which replace the version 2.1 content constraint:
++(% style="color:#2ecc71" %)Constraints(%%) in (% style="color:#2ecc71" %)version(%%) 3.0 are modelled using two separate [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] which replace the (% style="color:#2ecc71" %)version(%%) 2.1 content (% style="color:#2ecc71" %)constraint(%%):
--* data constraint for data; and
--* metadata constraint for reference metadata.
++* data (% style="color:#2ecc71" %)constraint(%%) for data; and
++* metadata (% style="color:#2ecc71" %)constraint(%%) for [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]].
--Metadata constraint differs from its data counterpart in having a simplified cube region model better suited to reference metadata reporting use cases and not carrying details of the constrained targets – that information instead being defined directly within the metadataflow and Metadata Provision Agreement. Thus, metadata related constraints only specify constraints to the values of metadata attributes.
++Metadata (% style="color:#2ecc71" %)constraint(%%) differs from its data counterpart in having a simplified cube region model better suited to [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] reporting use cases and not carrying details of the constrained targets – that information instead being defined directly within the [[metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]]. Thus, metadata related (% style="color:#2ecc71" %)constraints(%%) only specify (% style="color:#2ecc71" %)constraints(%%) to the values of metadata attributes.
--The ‘%’ wildcard character can now be used when defining cube region constraints to match multiple codes with a single expression, for instance for economic activity, ISIC4_% matches all codes beginning with ‘ISIC4_’ avoiding the need to maintain an explicit list.
++The ‘%’ wildcard character can now be used when defining cube region (% style="color:#2ecc71" %)constraints(%%) to match multiple [[codes>>doc:xwiki:Glossary.Code.WebHome]] with a single expression, for instance for [[economic activity>>doc:xwiki:Glossary.Economic activity.WebHome]], ISIC4_% matches all [[codes>>doc:xwiki:Glossary.Code.WebHome]] beginning with ‘ISIC4_’ avoiding the need to maintain an explicit list.
--The validity period definition has been moved from the constraint to the individual constraining terms, specifically CubeRegion, DataKeySet and MetadataTargetRegion providing more granular control.
++The validity period definition has been moved from the (% style="color:#2ecc71" %)constraint(%%) to the individual constraining terms, specifically CubeRegion, DataKeySet and MetadataTargetRegion providing more granular control.
--Attachment constraints have been deprecated due to a lack of use cases.
++Attachment (% style="color:#2ecc71" %)constraints(%%) have been deprecated due to a lack of use cases.
  == 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.
++In addition to the two new specialised geospatial forms, the option has been added to define a [[code list>>doc:xwiki:Glossary.Code list.WebHome]] as an extension of, or by inheriting [[codes>>doc:xwiki:Glossary.Code.WebHome]] from, other lists. An optional prefix can be added to inherited [[codes>>doc:xwiki:Glossary.Code.WebHome]] 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.
++This feature allows new [[code lists>>doc:xwiki:Glossary.Code list.WebHome]] to be easily derived from existing lists without the need to make and manually maintain copies. When querying for extended [[code list>>doc:xwiki:Glossary.Code list.WebHome]] structures using the REST API, the option has been added to retrieve either the definition or the materialised list. Traditional literal lists of [[codes>>doc:xwiki:Glossary.Code.WebHome]] continue to be supported.
  == 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.
++Combining [[code list>>doc:xwiki:Glossary.Code list.WebHome]] extension with wildcarded (% style="color:#2ecc71" %)constraints(%%) solves the discriminated union of [[code lists>>doc:xwiki:Glossary.Code list.WebHome]] problem where a classification or breakdown has multiple “variants” which are all valid but mutually exclusive. A common example is [[economic activity>>doc:xwiki:Glossary.Economic activity.WebHome]] 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 ==
--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).
++[[Code>>doc:xwiki:Glossary.Code.WebHome]] [[hierarchies>>doc:xwiki:Glossary.Hierarchy.WebHome]] allow the definition of complex [[hierarchies>>doc:xwiki:Glossary.Hierarchy.WebHome]] of [[codes>>doc:xwiki:Glossary.Code.WebHome]] from potentially multiple lists for data discovery purposes. Hierarchical Codelist has been deprecated and replaced by two new [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]]: [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] – the actual [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] of [[codes>>doc:xwiki:Glossary.Code.WebHome]], and [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] Association links [[hierarchies>>doc:xwiki:Glossary.Hierarchy.WebHome]] directly to any other identifiable object, a capability missing from the (% style="color:#2ecc71" %)version(%%) 2.1 model. Further, the linkage can be within a particular context, for instance linking a [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] to a [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] within the context of a specific [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] ([[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] REF_AREA in the context of the ECB:EXR [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]]).
  = 4 Versioning of Structural Metadata Artefacts =
--Version 3.0 adopts semantic versioning principles for versioning of metadata artefacts following the rules set out at __[[https:~~/~~/semver.org>>https://semver.org]] __However, this is not mandatory, and organisations may continue to use the pre-existing two-digit versioning strategy, or not to version artefacts by omitting the //version// property. The version number no longer defaults to 1.0 if not explicitly set.
++(% style="color:#2ecc71" %)Version(%%) 3.0 adopts semantic versioning principles for versioning of metadata [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] following the rules set out at __[[https:~~/~~/semver.org>>https://semver.org]] __However, this is not mandatory, and organisations may continue to use the pre-existing two-digit versioning strategy, or not to (% style="color:#2ecc71" %)version(%%) [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] by omitting the (% style="color:#2ecc71" %)//version//(%%) property. The (% style="color:#2ecc71" %)version(%%) number no longer defaults to 1.0 if not explicitly set.
--Semantic version numbers are three digits:
++Semantic (% style="color:#2ecc71" %)version(%%) numbers are three digits:
  MAJOR.MINOR.PATCH
@@ -459,26 +459,26 @@
  Additional constructs are possible for dependency management when referencing structures. For instance:
--2.3+.1               Means the currently latest available version >= “2.3.1” and < “3.0.0” (all backwards compatible versions >= “2.3.1”).
--2+.3.1               Means the currently latest available version >= “2.3.1” (even if not backwards compatible).
++2.3+.1               Means the currently latest available (% style="color:#2ecc71" %)version(%%) >= “2.3.1” and < “3.0.0” (all backwards compatible (% style="color:#2ecc71" %)versions(%%) >= “2.3.1”).
++2+.3.1               Means the currently latest available (% style="color:#2ecc71" %)version(%%) >= “2.3.1” (even if not backwards compatible).
  == Draft structures ==
--A key principle is that semantically versioned structures are immutable and must not be changed without a corresponding change to the version number, except where explicitly marked as draft using extensions to the version number.
++A key principle is that semantically versioned structures are immutable and must not be changed without a corresponding change to the (% style="color:#2ecc71" %)version(%%) number, except where explicitly marked as draft using extensions to the (% style="color:#2ecc71" %)version(%%) number.
  MAJOR.MINOR.PATCH-EXTENSION
--1.10.0-draft                Means that version 1.10.0 is still being modified and may change – equivalent to setting isFinal=false in SDMX 2.1.
++1.10.0-draft                Means that (% style="color:#2ecc71" %)version(%%) 1.10.0 is still being modified and may change – equivalent to setting isFinal=false in [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 2.1.
 .10.0-unstable          Alternative to -draft.
 .10.0-notfinal            Alternative to -draft.
--The SDMX 2.1 isFinal property is deprecated in 3.0.
++The [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 2.1 isFinal property is deprecated in 3.0.
  = 5 REST Web Services API =
  == 5.1 Simplified list of resources ==
--The version 3.0 REST API has just five main resources:
++The (% style="color:#2ecc71" %)version(%%) 3.0 REST API has just five main resources:
  * structure
  * data
@@ -486,27 +486,27 @@
  * availability
  * metadata
--All structure and item queries have been organised under the structure resource in contrast to the version 2.1 API which specified a separate resource for each structure.
++All structure and item queries have been organised under the structure resource in contrast to the (% style="color:#2ecc71" %)version(%%) 2.1 API which specified a separate resource for each structure.
--This and changes in the URLs and query parameters on the data, availability and metadata resources means that, with the exception of schema queries, the version 3.0 API is not backwardly compatible.
++This and changes in the URLs and query parameters on the data, availability and metadata resources means that, with the exception of schema queries, the (% style="color:#2ecc71" %)version(%%) 3.0 API is not backwardly compatible.
  == 5.2 Improved data queries ==
--Data queries have been changed to provide more granular selections from contexts wider than just a Dataflow.
++Data queries have been changed to provide more granular selections from contexts wider than just a [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]].
  (% class="wikigeneratedid" id="HExtendthecontextofdataretrieval" %)
  **Extend the context of data retrieval**
--Version 2.1 data queries always retrieved data from a single specific Dataflow. In version 3.0, the query context may be specified as:
++(% style="color:#2ecc71" %)Version(%%) 2.1 data queries always retrieved data from a single specific [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]]. In (% style="color:#2ecc71" %)version(%%) 3.0, the query context may be specified as:
--* Dataflow;
--* Data Structure Definition – i.e., all Dataflows that use it; or
--* Provision Agreement – i.e., all Dataflows associated with it.
++* [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]];
++* Data Structure Definition – i.e., all [[Dataflows>>doc:xwiki:Glossary.Dataflow.WebHome]] that use it; or
++* Provision Agreement – i.e., all [[Dataflows>>doc:xwiki:Glossary.Dataflow.WebHome]] associated with it.
--Data queries may also search across datasets, for instance “retrieve all data about a country”.
++Data queries may also search across [[datasets>>doc:xwiki:Glossary.Data set.WebHome]], for instance “retrieve all data about a country”.
  (% class="wikigeneratedid" id="HComponent-basedfilters" %)
  **Component-based filters**
--Expressions filtering on individual components can now be included as part of the data query URL.
++Expressions filtering on individual [[components>>doc:xwiki:Glossary.Component.WebHome]] can now be included as part of the data query URL.
  /data/dataflow/ESTAT/ICP?c[REF_AREA]=CH&c[CONF_STATUS]=F
@@ -527,7 +527,7 @@
  (% class="wikigeneratedid" id="HSupportformultiplekeys" %)
  **Support for multiple keys**
--Queries can now specify multiple series keys.
++Queries can now specify multiple [[series keys>>doc:xwiki:Glossary.Series key.WebHome]].
  (% class="wikigeneratedid" %)
  /data/dataflow/ESTAT/ICP/1.0.0/M…A.ANR,M…A.INX,M…B.CTG
@@ -534,7 +534,7 @@
  == 5.3 Improved reference metadata queries ==
--Reference metadata queries have been improved with a number of new options to retrieve metadata reports.
++[[Reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] queries have been improved with a number of new options to retrieve metadata reports.
  **Get metadata reports by ID**
@@ -550,21 +550,21 @@
  == 5.4 Structural metadata maintenance ==
--Support has been added for maintenance of structural metadata.
++Support has been added for maintenance of [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]].
--HTTP verbs PUT, POST and DELETE may be used to submit SDMX-ML or SDMX-JSON structure messages to an SDMX registry for the purposes of adding, updating or deleting structural metadata artefacts.
++HTTP verbs PUT, POST and DELETE may be used to submit [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] or [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] structure messages to an [[SDMX registry>>doc:xwiki:Glossary.SDMX Registry.WebHome]] for the purposes of adding, updating or deleting [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]].
  = 6 XML, JSON, CSV and EDI Transmission formats =
  == 6.1 SDMX-ML ==
--The SDMX-ML XML messages have been modified and updated for version 3.0. While they broadly follow the same principles, there have been significant changes which break backward compatibility.
++The [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] XML messages have been modified and updated for (% style="color:#2ecc71" %)version(%%) 3.0. While they broadly follow the same principles, there have been significant changes which break backward compatibility.
  (% class="wikigeneratedid" id="HStructuremessage" %)
  **Structure message**
--The SDMX-ML structure message is used for transmission of structural metadata. It closely reflects the SDMX information model and has therefore been significantly updated for version 3.0 with the addition of new structures, modifications where structures have changed, and removal of deprecated structures like Structure Set.
++The [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] structure message is used for transmission of [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]]. It closely reflects the [[SDMX information model>>doc:xwiki:Glossary.SDMX Information Model.WebHome]] and has therefore been significantly updated for (% style="color:#2ecc71" %)version(%%) 3.0 with the addition of new structures, modifications where structures have changed, and removal of deprecated structures like Structure Set.
--Additionally, the way the individual artefacts are organised into ‘collections’ within the message has been significantly revised with a simpler flat structure adopted as set out in the following table:
++Additionally, the way the individual [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] are organised into ‘collections’ within the message has been significantly revised with a simpler flat structure adopted as set out in the following table:
  (% style="width:1102.04px" %)
  |(% style="width:321px" %)**Artefact type**|(% style="width:351px" %)**Version 2.1 Collection**|(% style="width:426px" %)**Version 3.0 Collection**
@@ -593,7 +593,7 @@
  |(% style="width:321px" %)TransformationScheme|(% style="width:351px" %)Transformations|(% style="width:426px" %)TransformationSchemes
  |(% style="width:321px" %)UserDefinedOperatorScheme|(% style="width:351px" %)UserDefinedOperators|(% style="width:426px" %)UserDefinedOperatorSchemes
--No changes have been made to the way the following artefacts are organised in the structure message:
++No changes have been made to the way the following [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] are organised in the structure message:
  (% style="width:1106.04px" %)
  |(% style="width:326px" %)**Artefact type**|(% style="width:776px" %)**Collection**
@@ -610,79 +610,81 @@
  |(% style="width:326px" %)Process|(% style="width:776px" %)Processes
  |(% style="width:326px" %)ProvisionAgreement|(% style="width:776px" %)ProvisionAgreements
--From version 3.0, collections can appear in any order within a structure message.
++From (% style="color:#2ecc71" %)version(%%) 3.0, collections can appear in any order within a structure message.
  (% class="wikigeneratedid" id="HDatamessages" %)
  **Data messages**
--All legacy SDMX-ML data messages have been deprecated with the exception of Structure Specific Data which becomes the sole standard format for transmission of SDMX data in XML in version 3.0.
--Specifically, the following data messages are not supported in version 3.0:
++(% class="wikigeneratedid" id="HDatamessages" %)
++All legacy [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] data messages have been deprecated with the exception of Structure Specific Data which becomes the sole standard format for transmission of [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] data in XML in (% style="color:#2ecc71" %)version(%%) 3.0.
--* SDMX-ML 1.0/2.0 Generic (time-series) data message
--* SDMX-ML 1.0/2.0 Compact (time-series) data message
--* SDMX-ML 1.0/2.0 Utility (time-series) data message
--* SDMX-ML 1.0/2.0 Cross-Sectional data message
--* SDMX-ML 2.1 Generic data messages (for observations, time-series and crosssectional data)
++Specifically, the following data messages are not supported in (% style="color:#2ecc71" %)version(%%) 3.0:
--The Structure Specific Data message has been extended to support the transmission of microdata sets, in particular those with multiple measures and array values for measures and attributes.
++* [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Generic (time-series) data message
++* [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Compact (time-series) data message
++* [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Utility (time-series) data message
++* [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Cross-Sectional data message
++* [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 2.1 Generic data messages (for observations, time-series and crosssectional data)
--As detailed in paragraph 3.4, the message now additionally allows data’s reference metadata to be reported as an integral part of the dataset. Like data attributes, these metadata attributes are included in the data message at the dataset, series or observation level as appropriate.
++The Structure Specific Data message has been extended to support the transmission of microdata sets, in particular those with multiple [[measures>>doc:xwiki:Glossary.Measure.WebHome]] and array values for [[measures>>doc:xwiki:Glossary.Measure.WebHome]] and [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]].
++As detailed in paragraph 3.4, the message now additionally allows data’s [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] to be reported as an integral part of the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]]. Like data [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]], these metadata [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] are included in the data message at the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]], series or observation (% style="color:#2ecc71" %)level(%%) as appropriate.
++
  The time series variant of the Structure Specific Data message is no longer used.
  (% class="wikigeneratedid" id="HReferencemetadatamessage" %)
  **Reference metadata message**
--The Generic Metadata message remains the standard format for transmission of reference metadata sets in XML but has been modified to support the revised version 3.0 reference metadata model.
++The Generic Metadata message remains the standard format for transmission of [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] sets in XML but has been modified to support the revised (% style="color:#2ecc71" %)version(%%) 3.0 [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] model.
  (% class="wikigeneratedid" id="HRegistrystructuralmetadata2018query2019messages" %)
  **Registry structural metadata ‘query’ messages**
--As a consequence of the deprecation of the SOAP API and standardisation on REST, the structural metadata ‘query’ messages have all been removed. In version 3.0, querying an SDMX Registry for structural metadata is performed solely using REST GET.
++As a consequence of the deprecation of the SOAP API and standardisation on REST, the [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] ‘query’ messages have all been removed. In (% style="color:#2ecc71" %)version(%%) 3.0, querying an [[SDMX Registry>>doc:xwiki:Glossary.SDMX Registry.WebHome]] for [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] is performed solely using REST GET.
  (% class="wikigeneratedid" id="HStructurereferencing" %)
  **Structure referencing**
--The option to reference structures using Agency, ID and Version has been removed. From SDMX version 3.0 URN is used for all referencing purposes with the exception of local references such as where groups reference dimensions within a DSD.
++The option to reference structures using Agency, ID and (% style="color:#2ecc71" %)Version(%%) has been removed. From [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] (% style="color:#2ecc71" %)version(%%) 3.0 URN is used for all referencing purposes with the exception of local references such as where groups reference [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] within a [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]].
  == 6.2 SDMX-JSON ==
--Like SDMX-ML, the SDMX-JSON messages have been significantly modified and updated for version 3.0. They are not backwardly compatible with version 2.1.
++Like [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]], the [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] messages have been significantly modified and updated for (% style="color:#2ecc71" %)version(%%) 3.0. They are not backwardly compatible with (% style="color:#2ecc71" %)version(%%) 2.1.
  (% class="wikigeneratedid" id="HStructuremessage-1" %)
  **Structure message**
--The SDMX-JSON structure message closely replicates the SDMX-ML equivalent. Like that of SDMX-ML it has been updated to align it with the version 3.0 information model with addition, deletion and modification of artefacts as required. The organisation of the structure collections has also been revised as detailed in paragraph 6.1.
++The [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] structure message closely replicates the [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] equivalent. Like that of [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] it has been updated to align it with the (% style="color:#2ecc71" %)version(%%) 3.0 information model with addition, deletion and modification of [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] as required. The organisation of the structure collections has also been revised as detailed in paragraph 6.1.
  (% class="wikigeneratedid" id="HDatamessage" %)
  **Data message**
--The SDMX-JSON data message has similarly be updated. Additional changes have been made to allow a single message to carry data from multiple datasets with potentially different Data Structure Definitions to support REST data queries of the form “retrieve all data about a country”. For this reason, the version 3.0 SDMX-JSON is not backwardly compatible with version 2.1 data messages. Support has been added for the transmission of microdata and reporting of reference metadata on data as an integral part of the dataset.
++The [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] data message has similarly be updated. Additional changes have been made to allow a single message to carry data from multiple [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] with potentially different [[Data Structure Definitions>>doc:xwiki:Glossary.Data structure definition.WebHome]] to support REST data queries of the form “retrieve all data about a country”. For this reason, the (% style="color:#2ecc71" %)version(%%) 3.0 [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] is not backwardly compatible with (% style="color:#2ecc71" %)version(%%) 2.1 data messages. Support has been added for the transmission of microdata and reporting of [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] on data as an integral part of the dataset.
  (% class="wikigeneratedid" id="HReferencemetadatamessage-1" %)
  **Reference metadata message**
--The SDMX-JSON metadata message has also been updated to support the version 3.0 reference metadata and Metadataset specifications.
++The [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] metadata message has also been updated to support the (% style="color:#2ecc71" %)version(%%) 3.0 [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] and Metadataset specifications.
  (% class="wikigeneratedid" id="HStructurereferencing-1" %)
  **Structure referencing**
--As for SDMX-ML, the option to reference structures using Agency, ID and Version has been removed with URN used for all non-local referencing purposes.
++As for [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]], the option to reference structures using Agency, ID and (% style="color:#2ecc71" %)Version(%%) has been removed with URN used for all non-local referencing purposes.
  == 6.3 SDMX-CSV ==
--CSV in SDMX is used transmission of data and reference metadata only.
++CSV in [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] is used transmission of data and [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] only.
  (% class="wikigeneratedid" id="HDatamessage-1" %)
  **Data message**
--The SDMX-CSV data message has been modified to align with the version 3.0 information model, support the enhanced REST API and ensure that data can be freely converted to and from the XML and JSON formats without loss. These changes include:
++The [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]]-CSV data message has been modified to align with the (% style="color:#2ecc71" %)version(%%) 3.0 information model, support the enhanced REST API and ensure that data can be freely converted to and from the XML and JSON formats without loss. These changes include:
--* An additional column identifying the type if the artefact defining the structure of the data: “dataflow”, “datastructure” or “dataprovision”; • A column for the structure artefact’s identification of the form
++* An additional column identifying the type if the [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] defining the structure of the data: “[[dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]]”, “datastructure” or “dataprovision”; • A column for the structure [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]]’s identification of the form
--ESTAT:NA_MAIN(1.6.0) which replaces the dataflow identifier in version 2.1; and
++ESTAT:NA_MAIN(1.6.0) which replaces the [[dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] identifier in (% style="color:#2ecc71" %)version(%%) 2.1; and
--* A column for the dataset action: information, append, replace or delete, which is consistent with both the the SDMX-ML and SDMX-JSON data messages.
++* A column for the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]] action: information, append, replace or delete, which is consistent with both the the [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] data messages.
  (% class="wikigeneratedid" id="HReferencemetadatamessage-2" %)
  **Reference metadata message**
--The SDMX-CSV metadata message is new for version 3.0 and, like the SDMX-ML and SDMX-JSON equivalents, is used for the transmission reference metadata sets.
++The [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]]-CSV metadata message is new for (% style="color:#2ecc71" %)version(%%) 3.0 and, like the [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] equivalents, is used for the transmission [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] sets.
  == 6.4 EDI deprecation ==
--The EDI format for transmission of both structures and data has been deprecated. Version 3.0 is therefore not backwardly compatible with legacy EDI messages.
++The EDI format for transmission of both structures and data has been deprecated. (% style="color:#2ecc71" %)Version(%%) 3.0 is therefore not backwardly compatible with legacy EDI messages.
  = Appendix A – Version 2.1 Information Model =