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Last modified by Artur on 2025/09/30 12:30
From version 15.2
edited by Helena
on 2025/06/06 17:30
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To version 15.4
edited by Helena
on 2025/06/06 17:30
Change comment: There is no comment for this version

Summary

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308 308  
309 309  There are four distinct types of message:
310 310  
311 -1. //Structure Definition~:// For the exchange of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]]. A [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] structure message can carry details of any number and combination of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:sdmx:Glossary.Artefact.WebHome]] like DSDs, [[code lists>>doc:sdmx:Glossary.Code list.WebHome]] and (% style="color:#e74c3c" %)constraints(%%).
312 -1. //Structure-specific Data~:// For the exchange of data. This format is specific to the [[Data Structure Definitions>>doc:sdmx:Glossary.Data structure definition.WebHome]] of the [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] (in other terms, it is [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]]-specific) and is created by following mappings between the metadata constructs defined in the Structure Definition message and the technical specification of the format. It supports the exchange of large [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] in XML format, provides strict validation of conformance with the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] using a generic XML parser, and supports the transmission of partial [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] ([[incremental updates>>doc:sdmx:Glossary.Incremental update.WebHome]]) as well as whole [[data sets>>doc:sdmx:Glossary.Data set.WebHome]].
311 +1. //**Structure Definition**~:// For the exchange of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]]. A [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] structure message can carry details of any number and combination of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:sdmx:Glossary.Artefact.WebHome]] like DSDs, [[code lists>>doc:sdmx:Glossary.Code list.WebHome]] and (% style="color:#e74c3c" %)constraints(%%).
312 +1. //**Structure-specific Data**~:// For the exchange of data. This format is specific to the [[Data Structure Definitions>>doc:sdmx:Glossary.Data structure definition.WebHome]] of the [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] (in other terms, it is [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]]-specific) and is created by following mappings between the metadata constructs defined in the Structure Definition message and the technical specification of the format. It supports the exchange of large [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] in XML format, provides strict validation of conformance with the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] using a generic XML parser, and supports the transmission of partial [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] ([[incremental updates>>doc:sdmx:Glossary.Incremental update.WebHome]]) as well as whole [[data sets>>doc:sdmx:Glossary.Data set.WebHome]].
313 313  
314 314  Many XML tools and technologies have expectations about the functions performed by an XML schema, one of which is a very direct relationship between the XML constructs described in the XML schema and the tagged data in the XML instance. Strong data typing is also considered normal, supporting full validation of the tagged data. These message types are designed to support validation and other expected XML schema functions.
315 315  
316 -1. //Generic Metadata~:// For the exchange of [[reference metadata>>doc:sdmx:Glossary.Reference metadata.WebHome]] sets. ‘Generic’ means the XML elements and XML [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]] are the same regardless of the metadata set.
317 -1. //Registry~:// All of the possible interactions with the [[SDMX registry>>doc:sdmx:Glossary.SDMX Registry.WebHome]] services are supported using [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] interfaces and REST API calls. Submission of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] content, data registrations and [[subscriptions>>doc:sdmx:Glossary.Subscription.WebHome]] is performed by a synchronous exchange of documents – a “request” message answered by a “response” message.
316 +1. //**Generic Metadata**~:// For the exchange of [[reference metadata>>doc:sdmx:Glossary.Reference metadata.WebHome]] sets. ‘Generic’ means the XML elements and XML [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]] are the same regardless of the metadata set.
317 +1. //**Registry**~:// All of the possible interactions with the [[SDMX registry>>doc:sdmx:Glossary.SDMX Registry.WebHome]] services are supported using [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] interfaces and REST API calls. Submission of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] content, data registrations and [[subscriptions>>doc:sdmx:Glossary.Subscription.WebHome]] is performed by a synchronous exchange of documents – a “request” message answered by a “response” message.
318 318  
319 319  == 5.2 SDMX-JSON ==
320 320  
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326 326  
327 327  There are three distinct message types:
328 328  
329 -1. //Structure~:// For the exchange [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]]. [[SDMX-JSON>>doc:sdmx:Glossary.SDMX-JSON.WebHome]] structure messages follow the same principles as for [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] in that a single message can transmit any number and combination of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:sdmx:Glossary.Artefact.WebHome]]. While the [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:sdmx:Glossary.SDMX-JSON.WebHome]] messages are structured differently, it is possible to freely convert between them.
330 -1. //Data: //For the exchange of data. Unlike [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]], the structure of a [[SDMX-JSON>>doc:sdmx:Glossary.SDMX-JSON.WebHome]] data message is not specific to the DSDs of the [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] so schema validation will not check for compliance of the data with the DSDs.
329 +1. //**Structure**~:// For the exchange [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]]. [[SDMX-JSON>>doc:sdmx:Glossary.SDMX-JSON.WebHome]] structure messages follow the same principles as for [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] in that a single message can transmit any number and combination of [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:sdmx:Glossary.Artefact.WebHome]]. While the [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:sdmx:Glossary.SDMX-JSON.WebHome]] messages are structured differently, it is possible to freely convert between them.
330 +1. //**Data**: //For the exchange of data. Unlike [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]], the structure of a [[SDMX-JSON>>doc:sdmx:Glossary.SDMX-JSON.WebHome]] data message is not specific to the DSDs of the [[data sets>>doc:sdmx:Glossary.Data set.WebHome]] so schema validation will not check for compliance of the data with the DSDs.
331 331  1. //Metadata//: For the exchange of [[reference metadata>>doc:sdmx:Glossary.Reference metadata.WebHome]] sets.
332 332  
333 333  == 5.3 SDMX-CSV ==