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Last modified by Helena K. on 2026/06/08 15:16
From version 25.38
edited by Helena K.
on 2026/06/03 14:03
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To version 26.2
edited by Helena K.
on 2026/06/03 14:08
Change comment: There is no comment for this version

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137 137  (% class="wikigeneratedid" id="HInformationModel-1" %)
138 138  **Information Model**
139 139  
140 -* Addition of [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] Constraint property to a [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]
140 +* Addition of [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] property to a [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]
141 141  * Addition of evolving structure property to a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]
142 142  * Remove [[version>>doc:sdmx:Glossary 2\.1.Version.WebHome]] property on [[Categorisation>>doc:sdmx:Glossary 2\.1.Categorisation.WebHome]]
143 143  * Simplification of [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]
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320 320  
321 321  == 5.2 SDMX-JSON ==
322 322  
323 -
324 324  [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] is the JSON transmission format specification for exchanging [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]], data and [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]]. It provides an alternative to [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] and is most suited to applications like web data dissemination.
325 325  
326 326  [[SDMX-JSON>>doc:sdmx:Glossary 2\.1.SDMX-JSON.WebHome]] messages serve the same function as those of the XML formats but have a different structure. For data, an important distinction is that they carry both [[component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] and labels which provides all the information needed to display the content in a single JSON response. The XML Structure-specific Data format by contrast carries only [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] IDs thus requiring applications obtain and hold [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] about the [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] in order to display the content in human-readable form.
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335 335  
336 336  == 5.3 SDMX-CSV ==
337 337  
338 -
339 339  [[SDMX-CSV>>doc:sdmx:Glossary 2\.1.SDMX-CSV.WebHome]] is the CSV transmission format specification for exchanging data and [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] only.
340 340  
341 341  [[SDMX-CSV>>doc:sdmx:Glossary 2\.1.SDMX-CSV.WebHome]] provides a simple columnar format for data and metadata that can be readily created and interpreted by standard software tools such as Microsoft Excel. Nevertheless, data and metadata can still be converted between the CSV and the JSON / XML formats without loss.
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347 347  
348 348  == 5.4 Formats and Messages Deprecated in Version 3.0 ==
349 349  
350 -The following formats and messages have been deprecated in (% style="color:#e74c3c" %)version(%%) 3.0 to simplify, modernise and rationalise the standard.
348 +The following formats and messages have been deprecated in version 3.0 to simplify, modernise and rationalise the standard.
351 351  
352 352  * [[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]]
353 353  * [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] 1.0/2.0 Generic (time-[[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]]) data message
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357 357  * [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] 2.1 Generic ([[Time Series>>doc:sdmx:Glossary 2\.1.Series.WebHome]]) data messages (for observations, time-[[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]] and cross-sectional data)
358 358  * [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] 2.1 Structure Specific [[Time Series>>doc:sdmx:Glossary 2\.1.Series.WebHome]] data message
359 359  
360 -The following messages were deprecated in (% style="color:#e74c3c" %)version(%%) 3.0 as a consequence of the deprecation of the SOAP web services:
358 +The following messages were deprecated in version 3.0 as a consequence of the deprecation of the SOAP web services:
361 361  
362 362  * [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] Query messages
363 363  * [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] Submit Structure Request messages
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392 392  
393 393  For many years the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] initiative has been fostering and supporting the development of a standard calculation [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]], called [[Validation and Transformation Language>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] ([[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]]). A blueprint for defining calculations was already described in the original [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 2.1 specifications (package 13 of the Information Model - “Transformations and Expressions”). It was just a basic framework that required further developments to became operational in order to achieve a calculation [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] able to manipulate [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]].
394 394  
395 -These developments started in late 2012 and were put in charge of the [[Validation and Transformation Language>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] Task Force ([[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] TF), which included members of the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Working Group (TWG) and Statistical Working Group (SWG), besides experts coming from the DDI and GSIM communities. The intent was to define a standard [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] to be implemented in [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] and applicable also to GSIM and DDI. This brought to the publication of the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 1.0 in 2015. Then new requirements came from a number of proofs of (% style="color:#e74c3c" %)concepts(%%) and tests of [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 1.0 made by several organisations and triggered a large improvement of the [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]]. A new provisional (% style="color:#e74c3c" %)version(%%), the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 1.1, was released in public consultation in 2017. The high number of [[comments>>doc:sdmx:Glossary 2\.1.Comment.WebHome]] received triggered another phase of intensive work, with the main goal of achieving a more robust and forward compatible (% style="color:#e74c3c" %)version(%%). Finally, the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 2.0 was published between April and July 2018 (see the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] website).
393 +These developments started in late 2012 and were put in charge of the [[Validation and Transformation Language>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] Task Force ([[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] TF), which included members of the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Working Group (TWG) and Statistical Working Group (SWG), besides experts coming from the DDI and GSIM communities. The intent was to define a standard [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] to be implemented in [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] and applicable also to GSIM and DDI. This brought to the publication of the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 1.0 in 2015. Then new requirements came from a number of proofs of concepts and tests of [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 1.0 made by several organisations and triggered a large improvement of the [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]]. A new provisional version, the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 1.1, was released in public consultation in 2017. The high number of [[comments>>doc:sdmx:Glossary 2\.1.Comment.WebHome]] received triggered another phase of intensive work, with the main goal of achieving a more robust and forward compatible version. Finally, the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 2.0 was published between April and July 2018 (see the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] website).
396 396  
397 397  The implementation of the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 2.0 in [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] started in late 2018 and was published as an incremental revision to the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 2.1 standards in July 2020. It allows users to write [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] 2.0 programs for validating and transforming [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] data, to store these programs in a [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metadata registry and to exchange them through [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] messages, also together the definition of the data structures of the involved data.
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