Changes for page Schema and Documentation

Last modified by Helena K. on 2026/06/09 12:21

From 13.1 to 12.1 From 13.3 to 13.2

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  == 1.1 History and Version 3.0 Developments ==
--The [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Standards [[Version>>doc:OntologyElements.Version.WebHome]] 1.0 established an information model which described aggregated statistical [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] and the [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] needed to exchange them in a standard fashion. This drew on the earlier example of the GESMES/TS standard. Based on the [[SDMX information model>>doc:sdmx:Glossary 2\.1.SDMX Information Model.WebHome]], several formats were developed: XML formats for exchange of [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]], [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], and queries for these ([[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]]), and EDIFACT formats for the [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] and [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] ([[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]]). These standards supported a number of exchange patterns, characterized as "bilateral", "gateway", and "data-sharing" models, as described in the Framework document in the [[Version>>doc:OntologyElements.Version.WebHome]] 1.0 standards package.
++The [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Standards (% style="color:#e74c3c" %)Version(%%) 1.0 established an information model which described aggregated statistical [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] and the [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] needed to exchange them in a standard fashion. This drew on the earlier example of the GESMES/TS standard. Based on the [[SDMX information model>>doc:sdmx:Glossary 2\.1.SDMX Information Model.WebHome]], several formats were developed: XML formats for exchange of [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]], [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], and queries for these ([[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]]), and EDIFACT formats for the [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] and [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] ([[SDMX-EDI>>doc:sdmx:Glossary 2\.1.SDMX-EDI.WebHome]]). These standards supported a number of exchange patterns, characterized as "bilateral", "gateway", and "data-sharing" models, as described in the Framework document in the (% style="color:#e74c3c" %)Version(%%) 1.0 standards package.
--Versions 2.0 and 2.1 built on this foundation to provide a higher degree of support for all of these models, with an emphasis on data sharing in the form of a set of standard registry services interfaces. Support for new types of [[metadata>>doc:IMElements.metadata.WebHome]] exchange and reporting were added, with a focus on "[[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]]" concerned with quality, methodology, and other issues. Further, the ability to provide [[metadata>>doc:IMElements.metadata.WebHome]] about the relationships between [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] and structures was expanded, providing more support for data cubes. Overall, the scope of the [[Version>>doc:OntologyElements.Version.WebHome]] 2.1 [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Standards was much broader, and included a larger set of message types in the [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] formats.
++(% style="color:#e74c3c" %)Versions(%%) 2.0 and 2.1 built on this foundation to provide a higher degree of support for all of these models, with an emphasis on data sharing in the form of a set of standard registry services interfaces. Support for new types of metadata exchange and reporting were added, with a focus on "[[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]]" concerned with quality, methodology, and other issues. Further, the ability to provide metadata about the relationships between [[data sets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] and structures was expanded, providing more support for data cubes. Overall, the scope of the (% style="color:#e74c3c" %)Version(%%) 2.1 [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Standards was much broader, and included a larger set of message types in the [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] formats.
--For [[Version>>doc:OntologyElements.Version.WebHome]] 3.0, the [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] specification has been rationalised and tightened while maintaining the fundamentals and principles established in 2.1. The documents for describing [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] remain the same except where there have been changes to the information model either to enhance existing structures, add new ones, or remove those deprecated such as the [[Structure Set>>doc:sdmx:Glossary 2\.1.Structure set.WebHome]].
++For (% style="color:#e74c3c" %)Version(%%) 3.0, the [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] specification has been rationalised and tightened while maintaining the fundamentals and principles established in 2.1. The documents for describing [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] remain the same except where there have been changes to the information model either to enhance existing structures, add new ones, or remove those deprecated such as the [[Structure Set>>doc:sdmx:Glossary 2\.1.Structure set.WebHome]].
--The deprecation of the SOAP web services specification in [[Version>>doc:OntologyElements.Version.WebHome]] 3.0 has resulted in the removal of all [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] Query documents. Standardisation on the REST API and HTTP GET for registry [[structure>>doc:IMElements.structure.WebHome]] queries means separate 'query request' documents are no longer required.
++The deprecation of the SOAP web services specification in (% style="color:#e74c3c" %)Version(%%) 3.0 has resulted in the removal of all [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] Query documents. Standardisation on the REST API and HTTP GET for registry structure queries means separate 'query request' documents are no longer required.
--The opportunity has also been taken to rationalise the plethora of alternative data documents accumulated from Versions 1.0, 2.0 and 2.1. [[All>>doc:OntologyElements.All.WebHome]], including Generic, Utility, Compact and Cross-Sectional have been deprecated except for [[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]] Specific Data which becomes the sole standard XML format for data updates, revisions and [[bilateral exchanges>>doc:sdmx:Glossary 2\.1.Bilateral exchange.WebHome]] in [[Version>>doc:OntologyElements.Version.WebHome]] 3.0.
++The opportunity has also been taken to rationalise the plethora of alternative data documents accumulated from (% style="color:#e74c3c" %)Versions(%%) 1.0, 2.0 and 2.1. All, including Generic, Utility, Compact and Cross-Sectional have been deprecated except for Structure Specific Data which becomes the sole standard XML format for data updates, revisions and [[bilateral exchanges>>doc:sdmx:Glossary 2\.1.Bilateral exchange.WebHome]] in (% style="color:#e74c3c" %)Version(%%) 3.0.
  == 1.2 The XML Design ==