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 16.1 to 16.2 From 16.8 to 16.9

From version 16.2

edited by Helena
on 2025/05/16 13:18

Change comment: There is no comment for this version

To version 16.8

edited by Helena
on 2025/05/16 13:24

Change comment: There is no comment for this version

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@@ -363,12 +363,12 @@
  The version 3.0 model has been extended to provide explicit support for geospatial data.
--=== GeospatialInformation type ===
--
++(% class="wikigeneratedid" id="HGeospatialInformationtype" %)
++**GeospatialInformation type**
  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.
--=== Geospatial code lists ===
--
++(% class="wikigeneratedid" id="HGeospatialcodelists" %)
++**Geospatial code lists**
  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:
  * 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.
@@ -451,7 +451,6 @@
  Examples:
  SDMX:CL_AREA(1.0.0)
--
  SDMX:CL_AREA(2.3.2)
  == Dependency management ==
@@ -458,10 +458,9 @@
  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” 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 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.
@@ -468,12 +468,10 @@
  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 version 1.10.0 is still being modified and may change – equivalent to setting isFinal=false in SDMX 2.1.
++1.10.0-unstable          Alternative to -draft.
++1.10.0-notfinal            Alternative to -draft.
--1.10.0-unstable Alternative to -draft.
--
--1.10.0-notfinal Alternative to -draft.
--
  The SDMX 2.1 isFinal property is deprecated in 3.0.
  = 5 REST Web Services API =
@@ -496,8 +496,8 @@
  Data queries have been changed to provide more granular selections from contexts wider than just a Dataflow.
--=== Extend the context of data retrieval ===
--
++(% 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:
  * Dataflow;
@@ -506,18 +506,20 @@
  Data queries may also search across datasets, for instance “retrieve all data about a country”.
--=== Component-based filters ===
--
++(% class="wikigeneratedid" id="HComponent-basedfilters" %)
++**Component-based filters**
  Expressions filtering on individual components can now be included as part of the data query URL.
  /data/dataflow/ESTAT/ICP?c[REF_AREA]=CH&c[CONF_STATUS]=F
--=== Support for operators ===
--
++(% class="wikigeneratedid" id="HSupportforoperators" %)
++**Support for operators**
  Filter expressions can also include operators.
--/data/dataflow/ESTAT/ICP?c[REF_AREA]=DE&c[ICP_ITEM]=sw:01&c[TIME_PERIOD]=ge:2015 Operators include:
++/data/dataflow/ESTAT/ICP?c[REF_AREA]=DE&c[ICP_ITEM]=sw:01&c[TIME_PERIOD]=ge:2015
++Operators include:
++
  (% style="width:531.039px" %)
  |(% style="width:151px" %)eq|(% style="width:378px" %)Equals
  |(% style="width:151px" %)ne|(% style="width:378px" %)Not equal to
@@ -525,10 +525,11 @@
  |(% style="width:151px" %)ge|(% style="width:378px" %)Greater than or equal to
  |(% style="width:151px" %)sw|(% style="width:378px" %)Starts with
--=== Support for multiple keys ===
--
++(% class="wikigeneratedid" id="HSupportformultiplekeys" %)
++**Support for multiple keys**
  Queries can now specify multiple series keys.
++(% class="wikigeneratedid" %)
  /data/dataflow/ESTAT/ICP/1.0.0/M…A.ANR,M…A.INX,M…B.CTG
  == 5.3 Improved reference metadata queries ==
@@ -559,8 +559,8 @@
  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.
--=== Structure message ===
--
++(% 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.
  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:
@@ -611,8 +611,8 @@
  From version 3.0, collections can appear in any order within a structure message.
--=== Data messages ===
--
++(% 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:
@@ -629,16 +629,16 @@
  The time series variant of the Structure Specific Data message is no longer used.
--=== Reference metadata message ===
--
++(% 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.
--=== Registry structural metadata ‘query’ messages ===
--
++(% 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.
--=== Structure referencing ===
--
++(% 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.
  == 6.2 SDMX-JSON ==