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Summary

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1 -1 Overview
1 +SDMX STANDARDS
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1 +Methodology.WebHome
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1 +Artefact|Code|Code list|Hierarchy|Reference metadata|SDMX-EDI|SDMX-JSON|SDMX-ML|Statistical data and metadata exchange|Structural metadata
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1 -{{box title="**Contents**"}}{{toc/}}{{/box}}
1 +{{box title="**Contents**"}}
2 +{{toc/}}
3 +{{/box}}
4 +
2 2  **Revision History**
3 3  
4 -|Revision|Date|Contents
5 -|DRAFT 1.0|May 2021|Draft release updated for SDMX 3.0 for public consultation
6 -|1.0|October 2021|Public Release for SDMX 3.0
7 +(% style="width:738.039px" %)
8 +|(% style="width:187px" %)Revision|(% style="width:157px" %)Date|(% style="width:390px" %)Contents
9 +|(% style="width:187px" %)DRAFT 1.0|(% style="width:157px" %)May 2021|(% style="width:390px" %)Draft release updated for SDMX 3.0 for public consultation
10 +|(% style="width:187px" %)1.0|(% style="width:157px" %)October 2021|(% style="width:390px" %)Public Release for SDMX 3.0
7 7  
8 8  = 1 Overview =
9 9  
10 -SDMX version 3.0 introduces new features, improvements and changes to the Standard in the following key areas:
14 +[[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] (% style="color:#2ecc71" %)version(%%) 3.0 introduces new features, improvements and changes to the Standard in the following key areas:
11 11  
12 12  **Information Model**
13 13  
14 -* Simplification and improvement of the reference metadata model
18 +* Simplification and improvement of the [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] model
15 15  * Support for microdata
16 16  * Support for geospatial data
17 -* Support for code list extension and discriminated union of code lists
21 +* Support for [[code list>>doc:xwiki:Glossary.Code list.WebHome]] extension and discriminated union of [[code>>doc:xwiki:Glossary.Code.WebHome]] lists
18 18  * Improvements to structure mapping
19 -* Improvements to code hierarchies for data discovery
23 +* Improvements to [[code>>doc:xwiki:Glossary.Code.WebHome]] [[hierarchies>>doc:xwiki:Glossary.Hierarchy.WebHome]] for data discovery
20 20  * Improvements to constraints
21 21  
22 22  **Versioning of Structural Metadata Artefacts**
23 23  
24 -• Adoption of the three-number semantic versioning standard for structural metadata artefacts [[(>>url:https://semver.org/]][[__https:~~/~~/semver.org__>>url:https://semver.org/]][[)>>url:https://semver.org/]]
28 +* Adoption of the three-number semantic versioning standard for [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] ([[https:~~/~~/semver.org/>>https://semver.org/||rel="noopener noreferrer" target="_blank"]])
25 25  
26 26  **REST Web Services Application Programming Interface (API)**
27 27  
28 28  * Change to a single ‘structure’ resource for structure queries simplifying the REST API specification by reducing the number of resources to five
29 29  * Improvements to data queries
30 -* Improvements to reference metadata queries
31 -* Support for structural metadata maintenance using HTTP PUT, POST and DELETE verbs
34 +* Improvements to [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] queries
35 +* Support for [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] maintenance using HTTP PUT, POST and DELETE verbs
32 32  
33 33  **SOAP Web Services API**
34 34  
35 -• The SOAP web services API has been deprecated with version 3.0 standardising on REST** **
39 +* The SOAP web services API has been deprecated with (% style="color:#2ecc71" %)version(%%) 3.0 standardising on REST**;**
36 36  
37 37  **XML, JSON, CSV and EDI Transmission formats**
38 38  
39 -* The SDMX-ML, SDMX-JSON and SDMX-CSV specifications have been extended and modified where needed to support the new features and changes such as reference metadata and microdata
40 -* Obsolete SDMX-ML data message variants including Generic, Compact, Utility and Cross-sectional have been deprecated standardising on Structure Specific Data as the sole XML format for data exchange
41 -* The SDMX-EDI transmission format for structures and data has been deprecated
42 -* The organisation of structures into ‘collections’ in SDMX-ML and SDMX-JSON structure messages has been flattened and simplified
43 -* The option to reference structures in SDMX-ML and SDMX-JSON messages using Agency, ID and Version has been deprecated with URN now exclusively used for all non-local referencing purpose
43 +* The [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]], [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] and [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]]-CSV specifications have been extended and modified where needed to support the new features and changes such as [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] and microdata
44 +* Obsolete [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] data message variants including Generic, Compact, Utility and Cross-sectional have been deprecated standardising on Structure Specific Data as the sole XML format for data exchange
45 +* The [[SDMX-EDI>>doc:xwiki:Glossary.SDMX-EDI.WebHome]] transmission format for structures and data has been deprecated
46 +* The organisation of structures into ‘collections’ in [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] structure messages has been flattened and simplified
47 +* The option to reference structures in [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:xwiki:Glossary.SDMX-JSON.WebHome]] messages using Agency, ID and (% style="color:#2ecc71" %)Version(%%) has been deprecated with URN now exclusively used for all non-local referencing purpose
44 44  
45 45  **Breaking Changes**
46 46  
47 -Many of the changes made are ‘breaking’ meaning that, while conversion between versions may be possible in certain circumstances, the 3.0 specification is not directly backwardly compatible with earlier versions of the Standard.
51 +Many of the changes made are ‘breaking’ meaning that, while conversion between (% style="color:#2ecc71" %)versions(%%) may be possible in certain circumstances, the 3.0 specification is not directly backwardly compatible with earlier (% style="color:#2ecc71" %)versions(%%) of the Standard.
48 48  
49 49  A summary of the main breaking changes is given in chapter 2.
50 50  
51 51  **Content of the Document**
52 52  
53 -The remainder of the document provides a summary of the main changes. More detailed information can be found the SDMX 3.0 Technical Specifications, in particular:
57 +The remainder of the document provides a summary of the main changes. More detailed information can be found the [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 3.0 Technical Specifications, in particular:
54 54  
55 55  * Section 2 – Information Model
56 56  * Section 5 – Registry Specification
57 57  * Section 6 – Technical Notes
58 -* SDMX-TWG GitHub for the REST API and the XML, JSON and CSV formats
62 +* [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]]-TWG GitHub for the REST API and the XML, JSON and CSV formats
59 59  
60 60  = 2 Summary of Breaking Changes in 3.0 =
61 61  
62 -Version 3.0 introduces breaking changes into the web services API, transmission formats and information model. A summary is given in the table below.
66 +(% style="color:#2ecc71" %)Version(%%) 3.0 introduces breaking changes into the web services API, transmission formats and information model. A summary is given in the table below.
63 63  
64 -== //2.1 Web Services API// ==
68 +== 2.1 Web Services API ==
65 65  
66 -|**REST API**|(((
70 +(% style="width:948.039px" %)
71 +|**REST API**|(% style="width:818px" %)(((
67 67  The REST API is not backwardly compatible due to modifications to the URLs and query parameters resulting in breaking changes in four of the five main resources:
68 68  
69 69  * Structure queries
... ... @@ -75,139 +75,125 @@
75 75  
76 76  //Guidance for implementors//
77 77  
78 -REST API implementors may provide partial backward compatibility by using web server URL rewriting rules to translate version 2.1 structure queries to the 3.0 equivalent.
83 +REST API implementors may provide partial backward compatibility by using web server URL rewriting rules to translate (% style="color:#2ecc71" %)version(%%) 2.1 structure queries to the 3.0 equivalent.
79 79  
80 -Implementors are also recommended to version their API services providing users with an explicit choice of which version to use.
85 +Implementors are also recommended to (% style="color:#2ecc71" %)version(%%) their API services providing users with an explicit choice of which (% style="color:#2ecc71" %)version(%%) to use.
81 81  )))
82 -|**SOAP API**|The SOAP API has been deprecated.
87 +|**SOAP API**|(% style="width:818px" %)The SOAP API has been deprecated.
83 83  
84 -== //2.2 Transmission Formats// ==
89 +== 2.2 Transmission Formats ==
85 85  
86 -:
87 -
88 88  (((
89 -|**SDMX-ML**|(((
92 +(% style="width:952.039px" %)
93 +|(% style="width:130px" %)**SDMX-ML**|(% style="width:820px" %)(((
90 90  The following legacy XML data messages have been deprecated:
91 91  
92 -SDMX-ML 1.0/2.0 Generic (time-series) data message
96 +[[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Generic (time-series) data message
97 +[[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Compact (time-series) data message
98 +[[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Utility (time-series) data message
99 +[[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 cross-sectional data)
93 93  
94 -SDMX-ML 1.0/2.0 Compact (time-series) data message
101 +Structure Specific is the only data message option in (% style="color:#2ecc71" %)version(%%) 3.0 but is not backwardly compatible with (% style="color:#2ecc71" %)version(%%) 2.1 due to several changes including deprecation of the option to reference structures like the [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] and [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] using their Agency, ID and (% style="color:#2ecc71" %)Version(%%). The time series variant of the message has also been deprecated.
95 95  
96 -SDMX-ML 1.0/2.0 Utility (time-series) data message
103 +The [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] structure message is not backwardly compatible primarily due to:
97 97  
98 -SDMX-ML 1.0/2.0 Cross-Sectional data message SDMX-ML 2.1 Generic data messages (for observations, time-series and cross-sectional data)
99 -
100 -Structure Specific is the only data message option in version 3.0 but is not backwardly compatible with version 2.1 due to several changes including deprecation of the option to reference structures like the DSD, Dataflow and Provision Agreement using their Agency, ID and Version. The time series variant of the message has also been deprecated.
101 -
102 -The SDMX-ML structure message is not backwardly compatible primarily due to:
103 -
104 104  * Changes to the information model
105 -* Changes to the way the structures are organised into
106 -
107 -‘collections’ within the message
108 -
109 -* Deprecation of the Agency, ID, Version option for referencing of structures in messages
106 +* Changes to the way the structures are organised into ‘collections’ within the message
107 +* Deprecation of the Agency, ID, (% style="color:#2ecc71" %)Version(%%) option for referencing of structures in messages
110 110  )))
111 -|**SDMX-JSON**|(((
112 -The JSON data message is not backwardly compatible with version 2.1 primarily due to changes needed to support the improved REST API data queries, in particular the ability to retrieve in one operation data from multiple datasets with potentially different Data Structure Definitions.
109 +|(% style="width:130px" %)**SDMX-JSON**|(% style="width:820px" %)(((
110 +The JSON data message is not backwardly compatible with (% style="color:#2ecc71" %)version(%%) 2.1 primarily due to changes needed to support the improved REST API data queries, in particular the ability to retrieve in one operation data from multiple [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] with potentially different Data Structure Definitions.
113 113  
114 114  The JSON structure message is not backwardly compatible primarily due to:
115 115  
116 116  * Changes to the information model
117 -* Changes to the way the structures are organised into
118 -
119 -‘collections’ within the message
120 -
121 -* Deprecation of the Agency, ID, Version option for referencing of structures in messages
115 +* Changes to the way the structures are organised into ‘collections’ within the message
116 +* Deprecation of the Agency, ID, (% style="color:#2ecc71" %)Version(%%) option for referencing of structures in messages
122 122  )))
123 -|**SDMX-EDI**|The EDI format for both structures and data has been deprecated.
124 -|**SDMX-CSV**|The CSV data and reference metadata messages are not backwardly compatible with those under version 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.**     **
118 +|(% style="width:130px" %)**SDMX-EDI**|(% style="width:820px" %)The EDI format for both structures and data has been deprecated.
119 +|(% style="width:130px" %)**SDMX-CSV**|(% style="width:820px" %)The CSV data and [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] messages are not backwardly compatible with those under (% style="color:#2ecc71" %)version(%%) 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.
125 125  )))
126 126  
127 -== //2.3 Information Model// ==
122 +== 2.3 Information Model ==
128 128  
129 -:
130 -
131 131  (((
132 -|**Data Structure Definition**|(((
133 -The version 3.0 Data Structure Definition (DSD) model is not directly backwardly compatible with 2.1 primarily due to the deprecation of the special MeasureDimension.
125 +(% style="width:955.039px" %)
126 +|(% style="width:132px" %)**Data Structure Definition**|(% style="width:819px" %)(((
127 +The (% style="color:#2ecc71" %)version(%%) 3.0 [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]] ([[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]]) model is not directly backwardly compatible with 2.1 primarily due to the deprecation of the special MeasureDimension.
134 134  
135 135  //Conversion guidance for implementors//
136 136  
137 -Version 2.1 DSDs can be converted to the 3.0 model by creating a measure with the “MEASURE” concept role applied as described in paragraph 3.5.
131 +(% style="color:#2ecc71" %)Version(%%) 2.1 DSDs can be converted to the 3.0 model by creating a [[measure>>doc:xwiki:Glossary.Measure.WebHome]] with the “[[MEASURE>>doc:xwiki:Glossary.Measure.WebHome]]” (% style="color:#2ecc71" %)concept(%%) role applied as described in paragraph 3.5.
138 138  
139 -Version 3.0 DSDs cannot be reliably converted to the 2.1 model due to the introduction of new features such as multiple measures and value arrays for measures and attributes.
133 +(% style="color:#2ecc71" %)Version(%%) 3.0 DSDs cannot be reliably converted to the 2.1 model due to the introduction of new features such as multiple [[measures>>doc:xwiki:Glossary.Measure.WebHome]] and value arrays for [[measures>>doc:xwiki:Glossary.Measure.WebHome]] and [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]].
140 140  )))
141 -|**Structure mapping model**|(((
142 -The structure mapping model has changed significantly in version 3.0 with deprecation of the Structure Set maintainable artefact and introduction of five new ones: Representation Map and four variants of item scheme map.
135 +|(% style="width:132px" %)**Structure mapping model**|(% style="width:819px" %)(((
136 +The structure mapping model has changed significantly in (% style="color:#2ecc71" %)version(%%) 3.0 with deprecation of the [[Structure Set>>doc:xwiki:Glossary.Structure set.WebHome]] [[maintainable artefact>>doc:xwiki:Glossary.Maintainable artefact.WebHome]] and introduction of five new ones: [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%) and four variants of [[item scheme>>doc:xwiki:Glossary.Item scheme.WebHome]] (% style="color:#2ecc71" %)map(%%).
143 143  
144 144  //Conversion guidance for implementors//
145 145  
146 -Version 2.1 structure sets can be practically converted to the version 3.0 structure mapping model.
140 +(% style="color:#2ecc71" %)Version(%%) 2.1 [[structure sets>>doc:xwiki:Glossary.Structure set.WebHome]] can be practically converted to the (% style="color:#2ecc71" %)version(%%) 3.0 structure mapping model.
147 147  
148 -Conversion from the version 3.0 structure mapping model to 2.1 is generally possible. However, when attempting to convert mapping rules from 2.1 to 3.0 and back to 2.1, the resulting Structure Set will not be precisely the same as the original. In converting to version 3.0, the system must generate IDs for each of the new maintainable artefacts, but details of the original Structure Set artefacts are lost.
142 +Conversion from the (% style="color:#2ecc71" %)version(%%) 3.0 structure mapping model to 2.1 is generally possible. However, when attempting to convert mapping rules from 2.1 to 3.0 and back to 2.1, the resulting [[Structure Set>>doc:xwiki:Glossary.Structure set.WebHome]] will not be precisely the same as the original. In converting to (% style="color:#2ecc71" %)version(%%) 3.0, the system must generate IDs for each of the new [[maintainable artefacts>>doc:xwiki:Glossary.Maintainable artefact.WebHome]], but details of the original [[Structure Set>>doc:xwiki:Glossary.Structure set.WebHome]] [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] are lost.
149 149  )))
150 -|**Reference metadata model**|(((
151 -The reference metadata model has changed in version 3.0 with modifications to the role of the Data Structure Definition, Metadata Structure Definition and Metadataflow artefacts. Metadata Provision Agreement and Metadata Provider Scheme have been added. Metadatasets are now identifiable.
144 +|(% style="width:132px" %)**Reference metadata model**|(% style="width:819px" %)(((
145 +The [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] model has changed in (% style="color:#2ecc71" %)version(%%) 3.0 with modifications to the role of the [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]], [[Metadata Structure Definition>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] and [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]]. Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] and Metadata Provider Scheme have been added. Metadatasets are now identifiable.
152 152  
153 -Version 2.1 reference metadata models are not valid in version 3.0.
147 +(% style="color:#2ecc71" %)Version(%%) 2.1 [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] models are not valid in (% style="color:#2ecc71" %)version(%%) 3.0.
154 154  
155 155  //Conversion guidance for implementors//
156 156  
157 -A version 2.1 Metadata Structure Definition can be converted to the version 3.0 model under some circumstances, but target information is either lost or has to be translated into a metadataflow. Further, conversion of a Data Structure Definition for collecting reference metadata against a dataset would need to make changes to the dataset’s Data Structure Definition. As the Data Structure Definition may not actually be specified, judgement would need to be taken, perhaps determining the most likely candidate by examining which
158 -)))
159 -| |(((
160 -already have metadata reported against their datasets. A 2.1 metadata report could be converted to a version 3.0 Metadataset if it is attached to a structure, but requires a Metadata Provision Agreement which would need to be created if not already in existence.
151 +A (% style="color:#2ecc71" %)version(%%) 2.1 [[Metadata Structure Definition>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] can be converted to the (% style="color:#2ecc71" %)version(%%) 3.0 model under some circumstances, but target information is either lost or has to be translated into a [[metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]]. Further, conversion of a [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]] for collecting [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] against a [[dataset>>doc:xwiki:Glossary.Data set.WebHome]] would need to make changes to the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]]’s [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]]. As the [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]] may not actually be specified, judgement would need to be taken, perhaps determining the most likely candidate by examining which already have metadata reported against their [[datasets>>doc:xwiki:Glossary.Data set.WebHome]]. A 2.1 metadata report could be converted to a (% style="color:#2ecc71" %)version(%%) 3.0 Metadataset if it is attached to a structure, but requires a Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] which would need to be created if not already in existence.
161 161  
162 -Conversion from the version 3.0 model to version 2.1 cannot be performed reliably. The process would need target information to be derived from analysis of the Metadataflows and Metadata Provision Agreements. Depending on the complexity it may not be possible to express that information in a version 2.1 Data Structure Definition.
153 +Conversion from the (% style="color:#2ecc71" %)version(%%) 3.0 model to (% style="color:#2ecc71" %)version(%%) 2.1 cannot be performed reliably. The process would need target information to be derived from analysis of the [[Metadataflows>>doc:xwiki:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreements>>doc:xwiki:Glossary.Provision agreement.WebHome]]. Depending on the complexity it may not be possible to express that information in a (% style="color:#2ecc71" %)version(%%) 2.1 [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]].
163 163  )))
164 -|**Constraint model**|(((
165 -The version 2.1 Content Constraint artefact has been deprecated in version 3.0 and replaced by the Data Constraint for data, and the Metadata Constraint for reference metadata.
155 +|(% style="width:132px" %)**Constraint model**|(% style="width:819px" %)(((
156 +The (% style="color:#2ecc71" %)version(%%) 2.1 Content (% style="color:#2ecc71" %)Constraint(%%) [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] has been deprecated in (% style="color:#2ecc71" %)version(%%) 3.0 and replaced by the Data (% style="color:#2ecc71" %)Constraint(%%) for data, and the Metadata (% style="color:#2ecc71" %)Constraint(%%) for reference metadata.
166 166  
167 167  //Conversion guidance for implementors//
168 168  
169 -2.1 Content Constraints can be converted without loss to the equivalent version 3.0 Data Constraint model.
160 +2.1 Content (% style="color:#2ecc71" %)Constraints(%%) can be converted without loss to the equivalent (% style="color:#2ecc71" %)version(%%) 3.0 Data (% style="color:#2ecc71" %)Constraint(%%) model.
170 170  
171 171  Conversion from 3.0 to 2.1 presents challenges where wildcards have been used, in those cases requiring expansion of the wildcard into explicit values.
172 172  )))
173 -|**Hierarchical codelist structures**|(((
174 -The version 2.1 Hierarchical Codelist artefact has been deprecated in version 3.0 and replaced by two new artefacts, Hierarchy and Hierarchy Association.
164 +|(% style="width:132px" %)**Hierarchical codelist structures**|(% style="width:819px" %)(((
165 +The (% style="color:#2ecc71" %)version(%%) 2.1 Hierarchical Codelist [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] has been deprecated in (% style="color:#2ecc71" %)version(%%) 3.0 and replaced by two new [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]], [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] and [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] Association.
175 175  
176 176  //Conversion guidance for implementors//
177 177  
178 -Version 2.1 Hierarchical Codelists can be successfully converted to the version 3.0 hierarchy model. Information on which artefacts to link the hierarchies to on what context would need to be added as a separate procedure.
169 +(% style="color:#2ecc71" %)Version(%%) 2.1 Hierarchical Codelists can be successfully converted to the (% style="color:#2ecc71" %)version(%%) 3.0 [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] model. Information on which [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] to link the [[hierarchies>>doc:xwiki:Glossary.Hierarchy.WebHome]] to on what context would need to be added as a separate procedure.
179 179  
180 -Conversion from the version 3.0 model to version 2.1 is possible, but with loss of the linking information
171 +Conversion from the (% style="color:#2ecc71" %)version(%%) 3.0 model to (% style="color:#2ecc71" %)version(%%) 2.1 is possible, but with loss of the linking information
181 181  )))
182 182  )))
183 183  
184 184  = 3 Information Model =
185 185  
186 -== //3.1 Version 3.0 Information Model// ==
177 +== 3.1 Version 3.0 Information Model ==
187 187  
188 188  [[image:SDMX 3-0-0 Major Changes FINAL-1.0_en_6fc573fe.png||height="404" width="718"]]
189 189  
190 190  //Figure 1 Version 3.0 simplified Information Model UML class diagram with ‘heat map’ illustrating the areas with most change//
191 191  
192 -The schematic above is a simplified UML class diagram of the SDMX 3.0 information model illustrating the major areas of change as a ‘heat map’. Darker colours indicate where new structures have been added in version 3.0 or where structures have been significantly changed.
183 +The schematic above is a simplified UML class diagram of the [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 3.0 information model illustrating the major areas of change as a ‘heat (% style="color:#2ecc71" %)map(%%)’. Darker colours indicate where new structures have been added in (% style="color:#2ecc71" %)version(%%) 3.0 or where structures have been significantly changed.
193 193  
194 -A number of ancillary structures including organisation schemes, process and reporting taxonomy are unchanged and have not been shown. Similarly, Organisation Scheme Map and Reporting Taxonomy Map have been omitted for simplicity. A schematic of the 2.1 model is given in Appendix A for comparison purposes.
185 +A number of ancillary structures including organisation schemes, process and [[reporting taxonomy>>doc:xwiki:Glossary.Reporting taxonomy.WebHome]] are unchanged and have not been shown. Similarly, Organisation Scheme (% style="color:#2ecc71" %)Map(%%) and [[Reporting Taxonomy>>doc:xwiki:Glossary.Reporting taxonomy.WebHome]] (% style="color:#2ecc71" %)Map(%%) have been omitted for simplicity. A schematic of the 2.1 model is given in Appendix A for comparison purposes.
195 195  
196 -== //3.2 Key Changes from Version 2.1// ==
187 +== 3.2 Key Changes from Version 2.1 ==
197 197  
198 198  New Maintainable Artefacts
199 199  
200 -* Structure Map
201 -* Representation Map
202 -* Organisation Scheme Map
203 -* Concept Scheme Map
204 -* Category Scheme Map
205 -* Reporting Taxonomy Map
191 +* Structure (% style="color:#2ecc71" %)Map
192 +* [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map
193 +* Organisation Scheme (% style="color:#2ecc71" %)Map
194 +* (% style="color:#2ecc71" %)Concept(%%) Scheme (% style="color:#2ecc71" %)Map
195 +* Category Scheme (% style="color:#2ecc71" %)Map
196 +* Reporting Taxonomy (% style="color:#2ecc71" %)Map
206 206  * Value List
207 -* Hierarchy
208 -* Hierarchy Association
209 -* Metadata Constraint
210 -* Data Constraint
198 +* [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]]
199 +* [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] Association
200 +* Metadata (% style="color:#2ecc71" %)Constraint
201 +* Data (% style="color:#2ecc71" %)Constraint
211 211  * Metadata Provision Agreement
212 212  * Metadata Provider Scheme
213 213  * Metadataset
... ... @@ -220,24 +220,25 @@
220 220  
221 221  Removed Maintainable Artefacts
222 222  
223 -* Structure Set – replaced by Structure Map and the four item scheme maps
224 -* Hierarchical Codelist – replaced by Hierarchy and Hierarchy Association • Constraint – replaced by Data Constraint and Metadata Constraint
214 +* Structure Set – replaced by Structure (% style="color:#2ecc71" %)Map(%%) and the four [[item scheme>>doc:xwiki:Glossary.Item scheme.WebHome]] maps
215 +* Hierarchical Codelist – replaced by [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] and [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] Association
216 +* (% style="color:#2ecc71" %)Constraint(%%) – replaced by Data (% style="color:#2ecc71" %)Constraint(%%) and Metadata (% style="color:#2ecc71" %)Constraint
225 225  
226 226  Changed Maintainable Artefacts
227 227  
228 -* Data Structure Definition – support for microdatasets and reference metadata linked to data
229 -* Metadataflow – simplifies exchange of reference metadata, in particular those linked to structures
230 -* Metadata Structure Definition – simplified model for reference metadata
220 +* Data Structure Definition – support for microdatasets and [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] linked to data
221 +* Metadataflow – simplifies exchange of [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]], in particular those linked to structures
222 +* Metadata Structure Definition – simplified model for [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]]
231 231  * Codelist – support for codelist extension and geospatial specialised codelists (GeographicCodelist, GeoGridCodelist)
232 -* VTL Mapping Scheme – VTL Concept Mapping Scheme removed to align the VTL / SDMX interface with the 3.0 model
224 +* [[VTL>>doc:xwiki:Glossary.Validation and transformation language.WebHome]] Mapping Scheme – [[VTL>>doc:xwiki:Glossary.Validation and transformation language.WebHome]] (% style="color:#2ecc71" %)Concept(%%) Mapping Scheme removed to align the [[VTL>>doc:xwiki:Glossary.Validation and transformation language.WebHome]] / [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] interface with the 3.0 model
233 233  
234 -New Component Representation Types
226 +New [[Component>>doc:xwiki:Glossary.Component.WebHome]] [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] Types
235 235  
236 236  * GeospatialInformation – a string type where the value is an expression defining a set of geographical features using a purpose-designed syntax
237 237  
238 -== //3.3 Areas Unchanged from Version 2.1// ==
230 +== 3.3 Areas Unchanged from Version 2.1 ==
239 239  
240 -The following areas of the information model are unchanged from version 2.1:
232 +The following areas of the information model are unchanged from (% style="color:#2ecc71" %)version(%%) 2.1:
241 241  
242 242  * Categories
243 243  * Concepts
... ... @@ -244,18 +244,18 @@
244 244  * Data providers
245 245  * Agencies
246 246  * Data consumers
247 -* VTL transformation and expressions – with the exception of VTL mapping scheme as already noted
239 +* [[VTL>>doc:xwiki:Glossary.Validation and transformation language.WebHome]] transformation and expressions – with the exception of [[VTL>>doc:xwiki:Glossary.Validation and transformation language.WebHome]] mapping scheme as already noted
248 248  * Reporting taxonomy
249 249  * Process
250 250  
251 -== //3.4 Reference Metadata// ==
243 +== 3.4 Reference Metadata ==
252 252  
253 -Reference metadata has been substantially re-designed for version 3.0 to simplify the model and better support practical use cases.
245 +[[Reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] has been substantially re-designed for (% style="color:#2ecc71" %)version(%%) 3.0 to simplify the model and better support practical use cases.
254 254  
255 -=== Simplify Metadata Structure Definition ===
247 +(% class="wikigeneratedid" id="HSimplifyMetadataStructureDefinition" %)
248 +**Simplify Metadata Structure Definition**
249 +The [[Metadata Structure Definition>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] ([[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]]) has been simplified to remove target information, and the support of multiple report structures. The [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] now only contains Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] which are used to define the structure of a report.
256 256  
257 -The Metadata Structure Definition (MSD) has been simplified to remove target information, and the support of multiple report structures. The MSD now only contains Metadata Attributes which are used to define the structure of a report.
258 -
259 259  [[image:SDMX 3-0-0 Major Changes FINAL-1.0_en_ad5f5c97.png||height="346" width="494"]]
260 260  
261 261  //Figure 2 version 2.1 Metadata Structure Definition (MSD)//
... ... @@ -264,191 +264,136 @@
264 264  
265 265  //Figure 3 the simplified version 3.0 MSD//
266 266  
267 -=== Change to reference metadata reported against data ===
259 +(% class="wikigeneratedid" id="HChangetoreferencemetadatareportedagainstdata" %)
260 +**Change to reference metadata reported against data**
268 268  
269 -Reference metadata associated with datasets, data series or observations are now reported with the data. The dataset’s DSD must reference an MSD to define the structure of its reference metadata. In practice reference metadata for data are transmitted as part of the data message. The metadata attributes are treated in a similar way to the data attributes appearing in the message at the dataset, data series or individual observation level as appropriate. In contrast to simple data attributes, metadata attributes defined by an MSD can be organised into a hierarchical structure as illustrated in Figure 3 above. For this reason, metadata attributes appear in data messages structured in the same way as metadata messages.
262 +(% class="wikigeneratedid" id="HChangetoreferencemetadatareportedagainstdata" %)
263 +[[Reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] associated with [[datasets>>doc:xwiki:Glossary.Data set.WebHome]], data series or observations are now reported with the data. The [[dataset>>doc:xwiki:Glossary.Data set.WebHome]]’s [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]] must reference an [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] to define the structure of its [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]]. In practice [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] for data are transmitted as part of the data message. The metadata [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] are treated in a similar way to the data [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] appearing in the message at the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]], data series or individual observation (% style="color:#2ecc71" %)level(%%) as appropriate. In contrast to simple data [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]], metadata [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] defined by an [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] can be organised into a hierarchical structure as illustrated in Figure 3 above. For this reason, metadata [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] appear in data messages structured in the same way as metadata messages.
270 270  
271 -The SDMX-ML example below is an excerpt from a structure specific data message illustrating reporting of reference metadata with a hierarchical structure at the observation level.
265 +The [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] example below is an excerpt from a structure specific data message illustrating reporting of [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] with a hierarchical structure at the observation (% style="color:#2ecc71" %)level(%%).
272 272  
273 273  For completeness, the excerpt also shows:
274 274  
275 -* OBS_STATUS – a simple observation-level data attribute
276 -* TITLE – a multi-lingual data attribute
277 -* SOURCE_AGENCY – a multi-value data attribute
269 +* OBS_STATUS – a simple observation-(% style="color:#2ecc71" %)level(%%) data [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]]
270 +* TITLE – a multi-lingual data [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]]
271 +* SOURCE_AGENCY – a multi-value data [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]]
278 278  
279 -<Obs xsi:type="dsd:ObsType" OBS_VALUE="112" OBS_STAUS=”A” TIME_PERIOD="2010-09">
273 +> <Obs xsi:type="dsd:ObsType" OBS_VALUE="112" OBS_STAUS=”A” TIME_PERIOD="2010-09">
274 +> <!—- complex multi-value and multi-lingual data attributes ~-~->
275 +> <Comp id="TITLE" xsi:type="ns1:TITLE_ATTRIBUTE">
276 +> <Value>
277 +> <common:Text xml:lang="en">Some English Text</common:Text>
278 +> <common:Text xml:lang="fr">Quelques textes en anglais</common:Text>
279 +> </Value>
280 +> </Comp>
281 +> <Comp id="SOURCE_AGENCY" xsi:type="ns1:SOURCE_AGENCY_ATTRIBUTE">
282 +> <Value>4F0</Value>
283 +> <Value>4D0</Value>
284 +> <Value>CZ2</Value>
285 +> </Comp>
286 +> <!—- metadata attributes are reported like in metadata messages ~-~->
287 +> <Metadata>
288 +> <Attribute id="COLLECTION">
289 +> <Attribute id="METHOD">
290 +> <Text lang="en">AAA</Text>
291 +> </Attribute>
292 +> </Attribute>
293 +> <Attribute id="CONTACT">
294 +> <Value>CONTACT 1</Value>
295 +> <Attribute id="NAME">
296 +> <Value>Contact 1 Name 1</Value>
297 +> </Attribute>
298 +> <Attribute id="NAME">
299 +> <Value>Contact 1 Name 2</Value>
300 +> </Attribute>
301 +> </Attribute>
302 +> <Attribute id="CONTACT">
303 +> <Value>CONTACT 2</Value>
304 +> <Attribute id="NAME">
305 +> <Value>Contact 2 Name 1</Value>
306 +> </Attribute>
307 +> <Attribute id="NAME">
308 +> <Value>Contact 2 Name 2</Value>
309 +> </Attribute>
310 +> </Attribute>
311 +> </Metadata>
312 +> </Obs>
280 280  
281 -<!—- complex multi-value and multi-lingual data attributes ~-~->
314 +(% class="wikigeneratedid" id="HNew-MetadataProvisionAgreement" %)
315 +**New - Metadata Provision Agreement**
282 282  
283 -<Comp id="TITLE" xsi:type="ns1:TITLE_ATTRIBUTE">
317 +(% class="wikigeneratedid" id="HNew-MetadataProvisionAgreement" %)
318 +In (% style="color:#2ecc71" %)version(%%) 2.1 a [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] could be used to report information against a [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] or [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]]. From (% style="color:#2ecc71" %)version(%%) 3.0 this is managed by two separate structures, the Data [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] and the Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]].
284 284  
285 -<Value>
320 +(% class="wikigeneratedid" id="HMovetargettoMetadataflowandMetadataProvisionAgreement" %)
321 +**Move target to Metadataflow and Metadata Provision Agreement**
322 +For [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] that is reported against structures, the allowable targets information which is used to specify what structures the [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] can be reported against, has moved to the [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] and can be further refined in the Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]].
286 286  
287 -<common:Text xml:lang="en">Some English Text</common:Text>
324 +(% class="wikigeneratedid" id="HAddmaintainablepropertiestoreferencemetadata" %)
325 +**Add maintainable properties to reference metadata**
326 +A Metadataset now has mandatory identification information, (owner id, id, (% style="color:#2ecc71" %)version(%%)) enabling metadata providers to uniquely identify their reports for create, update or delete maintenance operations.
288 288  
289 -<common:Text xml:lang="fr">Quelques textes en anglais</common:Text>
328 +== 3.5 Microdata Exchange ==
290 290  
291 -</Value>
330 +Several changes have been made the [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]] to support microdata use cases in addition to aggregated time series.
292 292  
293 -</Comp>
332 +(% class="wikigeneratedid" id="HMultiplemeasures" %)
333 +**Multiple measures**Multiple [[measures>>doc:xwiki:Glossary.Measure.WebHome]] are a common characteristic of microdatasets. To support this use case, the MeasureDimension has been deprecated and replaced with the option to define zero or more [[measures>>doc:xwiki:Glossary.Measure.WebHome]]. [[Measures>>doc:xwiki:Glossary.Measure.WebHome]] now act like any other [[component>>doc:xwiki:Glossary.Component.WebHome]] in that they use (% style="color:#2ecc71" %)concepts(%%), can have their own local coded or uncoded [[representation>>doc:xwiki:Glossary.Representation.WebHome]] defined within the [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]], and can be either mandatory or conditional. Creating a [[measure>>doc:xwiki:Glossary.Measure.WebHome]] with the “[[MEASURE>>doc:xwiki:Glossary.Measure.WebHome]]” (% style="color:#2ecc71" %)concept(%%) role applied emulates the (% style="color:#2ecc71" %)version(%%) 2.1 MeasureDimension behaviour as illustrated in the [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] example below:
294 294  
295 -<Comp id="SOURCE_AGENCY" xsi:type="ns1:SOURCE_AGENCY_ATTRIBUTE">
335 +> <str:MeasureList id=”MeasureDescriptor”>
336 +> <str:Measure id=”OBS_VALUE” minOccurs=”1” maxOccurs=”1” usage=”mandatory” > <str:ConceptIdentity>
337 +> <Ref id=”OBS_VALUE” maintainableParentID=”CONCEPTS” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
338 +> </str:ConceptIdentity>
339 +> <str:LocalRepresentation>
340 +> <str:TextFormat textType=”String” isMultiLingual=”true” />
341 +> </str:LocalRepresentation>
342 +> <str:ConceptRole>
343 +> <Ref id=”MEASURE” maintainableParentID=”SDMX_CONCEPT_ROLES” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
344 +> </str:ConceptRole>
345 +> </str:Measure>
346 +> ...
347 +> <str:Measure>
348 +> </str:MeasureList>
296 296  
297 -<Value>4F0</Value>
350 +(% class="wikigeneratedid" id="HMulti-valuemeasuresandattributes" %)
351 +**Multi-value measures and attributes**
298 298  
299 -<Value>4D0</Value>
353 +(% class="wikigeneratedid" id="HMulti-valuemeasuresandattributes" %)
354 +Both [[measures>>doc:xwiki:Glossary.Measure.WebHome]] and [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] have been extended with the option to take ‘arrays’ of 193 multiple coded or uncoded values. This supports use cases like multiple observation 194 status flags. New //minOccurs// and //maxOccurs// properties define the valid number of 195 values. The //usage// property separately defines whether the [[measure>>doc:xwiki:Glossary.Measure.WebHome]] or [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]] is //mandatory// or optional. In the [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] [[measure>>doc:xwiki:Glossary.Measure.WebHome]] example above, the properties //minOccurs=”1” maxOccurs=”1” usage=”mandatory”// specify that OBS_VALUE must be 198 reported, and can only consist of a single value.
300 300  
301 -<Value>CZ2</Value>
356 +(% class="wikigeneratedid" id="HAttributesrelationshiptomeasures" %)
357 +**Attributes relationship to measures**
358 +In addition to attaching [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] to a specific (% style="color:#2ecc71" %)level(%%) within the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]], their relationship 202 to [[measures>>doc:xwiki:Glossary.Measure.WebHome]] can also be defined.
302 302  
303 -</Comp>
360 +(% class="wikigeneratedid" id="HValuelists" %)
361 +**Value lists**
362 +Value lists help in modelling microdata by providing an enumeration similar to [[code lists>>doc:xwiki:Glossary.Code list.WebHome]] 206 but allowing any string values without being restricted to the rules of [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] identifiers. That allows ValueItems (the equivalent to [[Code>>doc:xwiki:Glossary.Code.WebHome]]) to contain symbols like ‘¥’ and ‘€’, but also means they are not identifiable.
304 304  
305 -<!—- metadata attributes are reported like in metadata messages ~-~->
364 +== 3.6 Geospatial Data Exchange ==
306 306  
307 -<Metadata>
366 +The (% style="color:#2ecc71" %)version(%%) 3.0 model has been extended to provide explicit support for geospatial data.
308 308  
309 -<Attribute id="COLLECTION">
368 +(% class="wikigeneratedid" id="HGeospatialInformationtype" %)
369 +**GeospatialInformation type**
370 +A new GeospatialInformation string type has been added which can be used as the [[representation>>doc:xwiki:Glossary.Representation.WebHome]] for any [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]], [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]] or measure [[component>>doc:xwiki:Glossary.Component.WebHome]]. The value which is a string expression conforming to the syntax defined in Section 6 of the technical specifications precisely defines a ‘Geo Feature Set’ – a collection of geographical features like points, lines or polygons. Its use is recommended in conjunction with the “GEO_FEATURE_SET” (% style="color:#2ecc71" %)concept(%%) role.
310 310  
311 -<Attribute id="METHOD">
372 +(% class="wikigeneratedid" id="HGeospatialcodelists" %)
373 +**Geospatial code lists**
312 312  
313 -<Text lang="en">AAA</Text>
375 +(% class="wikigeneratedid" id="HGeospatialcodelists" %)
376 +Two new specialised types of [[code list>>doc:xwiki:Glossary.Code list.WebHome]] have been added where the definition of each [[code>>doc:xwiki:Glossary.Code.WebHome]] includes additional geospatial information in addition to the standard ID, name and description:
314 314  
315 -</Attribute>
316 -
317 -</Attribute>
318 -
319 -<Attribute id="CONTACT">
320 -
321 -<Value>CONTACT 1</Value>
322 -
323 -<Attribute id="NAME">
324 -
325 -<Value>Contact 1 Name 1</Value>
326 -
327 -</Attribute>
328 -
329 -<Attribute id="NAME">
330 -
331 -<Value>Contact 1 Name 2</Value>
332 -
333 -</Attribute>
334 -
335 -</Attribute>
336 -
337 -<Attribute id="CONTACT">
338 -
339 -<Value>CONTACT 2</Value>
340 -
341 -<Attribute id="NAME">
342 -
343 -<Value>Contact 2 Name 1</Value>
344 -
345 -</Attribute>
346 -
347 -<Attribute id="NAME">
348 -
349 -<Value>Contact 2 Name 2</Value>
350 -
351 -</Attribute>
352 -
353 -</Attribute>
354 -
355 -</Metadata>
356 -
357 -</Obs>
358 -
359 -=== New - Metadata Provision Agreement ===
360 -
361 -In version 2.1 a Provision Agreement could be used to report information against a Dataflow or Metadataflow. From version 3.0 this is managed by two separate structures, the Data Provision Agreement and the Metadata Provision Agreement.
362 -
363 -=== Move target to Metadataflow and Metadata Provision Agreement ===
364 -
365 -For reference metadata that is reported against structures, the allowable targets information which is used to specify what structures the reference metadata can be reported against, has moved to the Metadataflow and can be further refined in the Metadata Provision Agreement.
366 -
367 -=== Add maintainable properties to reference metadata ===
368 -
369 -A Metadataset now has mandatory identification information, (owner id, id, version) enabling metadata providers to uniquely identify their reports for create, update or delete maintenance operations.
370 -
371 -== //3.5 Microdata Exchange// ==
372 -
373 -Several changes have been made the Data Structure Definition to support microdata use cases in addition to aggregated time series.
374 -
375 -=== Multiple measures ===
376 -
377 -Multiple measures are a common characteristic of microdatasets. To support this use case, the MeasureDimension has been deprecated and replaced with the option to define zero or more measures. Measures now act like any other component in that they use concepts, can have their own local coded or uncoded representation defined within the
378 -
379 -Data Structure Definition, and can be either mandatory or conditional. Creating a measure with the “MEASURE” concept role applied emulates the version 2.1
380 -
381 -MeasureDimension behaviour as illustrated in the SDMX-ML example below:
382 -
383 -<str:MeasureList id=”MeasureDescriptor”>
384 -
385 -<str:Measure id=”OBS_VALUE” minOccurs=”1” maxOccurs=”1” usage=”mandatory” > <str:ConceptIdentity>
386 -
387 -<Ref id=”OBS_VALUE” maintainableParentID=”CONCEPTS” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
388 -
389 -</str:ConceptIdentity>
390 -
391 -<str:LocalRepresentation>
392 -
393 -<str:TextFormat textType=”String” isMultiLingual=”true” />
394 -
395 -</str:LocalRepresentation>
396 -
397 -<str:ConceptRole>
398 -
399 -<Ref id=”MEASURE” maintainableParentID=”SDMX_CONCEPT_ROLES” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
400 -
401 -</str:ConceptRole>
402 -
403 -</str:Measure>
404 -
405 -...
406 -
407 -<str:Measure>
408 -
409 -</str:MeasureList>
410 -
411 -=== Multi-value measures and attributes ===
412 -
413 -Both measures and attributes have been extended with the option to take ‘arrays’ of 193 multiple coded or uncoded values. This supports use cases like multiple observation 194 status flags. New //minOccurs// and //maxOccurs// properties define the valid number of 195 values. The //usage// property separately defines whether the measure or attribute is
414 -
415 -//mandatory// or optional. In the SDMX-ML measure example above, the properties
416 -
417 -//minOccurs=”1” maxOccurs=”1” usage=”mandatory”// specify that OBS_VALUE must be 198 reported, and can only consist of a single value.
418 -
419 -=== Attributes relationship to measures ===
420 -
421 -In addition to attaching attributes to a specific level within the dataset, their relationship 202 to measures can also be defined.
422 -
423 -=== Value lists ===
424 -
425 -Value lists help in modelling microdata by providing an enumeration similar to code lists 206 but allowing any string values without being restricted to the rules of SDMX identifiers.
426 -
427 -That allows ValueItems (the equivalent to Code) to contain symbols like ‘¥’ and ‘€’, but 208 also means they are not identifiable.
428 -
429 -== //3.6 Geospatial Data Exchange// ==
430 -
431 -The version 3.0 model has been extended to provide explicit support for geospatial data.
432 -
433 -=== GeospatialInformation type ===
434 -
435 -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.
436 -
437 -=== Geospatial code lists ===
438 -
439 -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:
440 -
441 441  * 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.
442 -* GeoGridCodelist – A code list defining a geographical grid composed of cells representing regular squared portions of the Earth. Each item references a cell within the grid.
379 +* GeoGridCodelist – A [[code list>>doc:xwiki:Glossary.Code list.WebHome]] defining a geographical grid composed of cells representing regular squared portions of the Earth. Each item references a cell within the grid.
443 443  
444 -=== //3.7 Structure Mapping// ===
381 +== 3.7 Structure Mapping ==
445 445  
446 446  The Structure Set in version 2.1 is a container for many mapping structures including Data Structure Map, Codelist Map and Concept Map. For version 3.0 the Structure Set artefact has been deprecated and replaced with a number of new maintainables giving better flexibility and reusability, specifically: Structure Map, Concept Scheme Map, Representation Map, Reporting Taxonomy Map, Category Scheme Map and Organisation Scheme Map.
447 447  
448 448  The version 2.1 Codelist Map been replaced with Representation Map which allows mappings to be defined between any combination of Code Lists, Value Lists and noncoded representations such as text strings and numbers.
449 449  
450 -==== Many-to-many source and target components ====
451 -
387 +(% class="wikigeneratedid" id="HMany-to-manysourceandtargetcomponents" %)
388 +**Many-to-many source and target components**
452 452  Structure mapping rules may be defined with both multiple source components and multiple target components in contrast to version 2.1 where only one source and target was allowed. That supports many-to-many (n-n) mapping use cases where the output of a mapping rule may be dependent on the combination of a number of input components. For instance:
453 453  
454 454  Set the output component INDICATOR=”DE_A” if the input components are FREQ=”A” and REF_AREA=”DE”.
... ... @@ -458,22 +458,21 @@
458 458  Set the output components FREQ=”A”, REF_AREA=”DE” if the input component INDICATOR=”DE_A”.
459 459  
460 460  **Fixed source and target**
461 -
462 462  The Structure Map may now define input or output components which have a fixed value.
463 463  
464 -==== Time representations mapping ====
465 -
400 +(% class="wikigeneratedid" id="HTimerepresentationsmapping" %)
401 +**Time representations mapping**
466 466  Non SDMX time representations may now be described in a Structure Map, allowing them to be mapped into SDMX time formats.
467 467  
468 -==== Regular expression and substring mappings ====
469 -
404 +(% class="wikigeneratedid" id="HRegularexpressionandsubstringmappings" %)
405 +**Regular expression and substring mappings**
470 470  All item maps allow the use of regular expressions and substrings to match source values, specifically: Concept Scheme Map, Reporting Taxonomy Map, Category Scheme Map and Organisation Scheme Map.
471 471  
472 -==== Item maps validity period ====
473 -
408 +(% class="wikigeneratedid" id="HItemmapsvalidityperiod" %)
409 +**Item maps validity period**
474 474  Item maps may further define the period for which the mapping is valid, meaning the mapping rule will only be applied if the row of information being mapped is within the period.
475 475  
476 -=== //3.8 Constraints// ===
412 +== 3.8 Constraints ==
477 477  
478 478  Constraints in version 3.0 are modelled using two separate artefacts which replace the version 2.1 content constraint:
479 479  
... ... @@ -488,23 +488,23 @@
488 488  
489 489  Attachment constraints have been deprecated due to a lack of use cases.
490 490  
491 -=== //3.9 Code List Extension// ===
427 +== 3.9 Code List Extension ==
492 492  
493 493  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.
494 494  
495 495  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.
496 496  
497 -=== //3.10 Discriminated Union of Code Lists// ===
433 +== 3.10 Discriminated Union of Code Lists ==
498 498  
499 499  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.
500 500  
501 -=== //3.11 Code Hierarchies// ===
437 +== 3.11 Code Hierarchies ==
502 502  
503 503  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).
504 504  
505 505  = 4 Versioning of Structural Metadata Artefacts =
506 506  
507 -Version 3.0 adopts semantic versioning principles for versioning of metadata artefacts following the rules set out at [[__https:~~/~~/semver.org__>>url:https://semver.org/]][[.>>url: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.
443 +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.
508 508  
509 509  Semantic version numbers are three digits:
510 510  
... ... @@ -519,7 +519,6 @@
519 519  Examples:
520 520  
521 521  SDMX:CL_AREA(1.0.0)
522 -
523 523  SDMX:CL_AREA(2.3.2)
524 524  
525 525  == Dependency management ==
... ... @@ -526,10 +526,9 @@
526 526  
527 527  Additional constructs are possible for dependency management when referencing structures. For instance:
528 528  
529 -2.3+.1 Means the currently latest available version >= “2.3.1” and < “3.0.0” (all backwards compatible versions >= “2.3.1”).
464 +2.3+.1  Means the currently latest available version >= “2.3.1” and < “3.0.0” (all backwards compatible versions >= “2.3.1”).
465 +2+.3.1  Means the currently latest available version >= “2.3.1” (even if not backwards compatible).
530 530  
531 -2+.3.1 Means the currently latest available version >= “2.3.1” (even if not backwards compatible).
532 -
533 533  == Draft structures ==
534 534  
535 535  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.
... ... @@ -536,17 +536,15 @@
536 536  
537 537  MAJOR.MINOR.PATCH-EXTENSION
538 538  
539 -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.
473 +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.
474 +1.10.0-unstable  Alternative to -draft.
475 +1.10.0-notfinal  Alternative to -draft.
540 540  
541 -1.10.0-unstable Alternative to -draft.
542 -
543 -1.10.0-notfinal Alternative to -draft.
544 -
545 545  The SDMX 2.1 isFinal property is deprecated in 3.0.
546 546  
547 547  = 5 REST Web Services API =
548 548  
549 -== //5.1 Simplified list of resources// ==
481 +== 5.1 Simplified list of resources ==
550 550  
551 551  The version 3.0 REST API has just five main resources:
552 552  
... ... @@ -560,12 +560,12 @@
560 560  
561 561  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.
562 562  
563 -== //5.2 Improved data queries// ==
495 +== 5.2 Improved data queries ==
564 564  
565 565  Data queries have been changed to provide more granular selections from contexts wider than just a Dataflow.
566 566  
567 -=== Extend the context of data retrieval ===
568 -
499 +(% class="wikigeneratedid" id="HExtendthecontextofdataretrieval" %)
500 +**Extend the context of data retrieval**
569 569  Version 2.1 data queries always retrieved data from a single specific Dataflow. In version 3.0, the query context may be specified as:
570 570  
571 571  * Dataflow;
... ... @@ -574,31 +574,35 @@
574 574  
575 575  Data queries may also search across datasets, for instance “retrieve all data about a country”.
576 576  
577 -=== Component-based filters ===
578 -
509 +(% class="wikigeneratedid" id="HComponent-basedfilters" %)
510 +**Component-based filters**
579 579  Expressions filtering on individual components can now be included as part of the data query URL.
580 580  
581 581  /data/dataflow/ESTAT/ICP?c[REF_AREA]=CH&c[CONF_STATUS]=F
582 582  
583 -=== Support for operators ===
584 -
515 +(% class="wikigeneratedid" id="HSupportforoperators" %)
516 +**Support for operators**
585 585  Filter expressions can also include operators.
586 586  
587 -/data/dataflow/ESTAT/ICP?c[REF_AREA]=DE&c[ICP_ITEM]=sw:01&c[TIME_PERIOD]=ge:2015 Operators include:
519 +/data/dataflow/ESTAT/ICP?c[REF_AREA]=DE&c[ICP_ITEM]=sw:01&c[TIME_PERIOD]=ge:2015
588 588  
589 -|eq|Equals
590 -|ne|Not equal to
591 -|le|Less than
592 -|ge|Greater than or equal to
593 -|sw|Starts with
521 +Operators include:
594 594  
595 -=== Support for multiple keys ===
523 +(% style="width:531.039px" %)
524 +|(% style="width:151px" %)eq|(% style="width:378px" %)Equals
525 +|(% style="width:151px" %)ne|(% style="width:378px" %)Not equal to
526 +|(% style="width:151px" %)le|(% style="width:378px" %)Less than
527 +|(% style="width:151px" %)ge|(% style="width:378px" %)Greater than or equal to
528 +|(% style="width:151px" %)sw|(% style="width:378px" %)Starts with
596 596  
530 +(% class="wikigeneratedid" id="HSupportformultiplekeys" %)
531 +**Support for multiple keys**
597 597  Queries can now specify multiple series keys.
598 598  
534 +(% class="wikigeneratedid" %)
599 599  /data/dataflow/ESTAT/ICP/1.0.0/M…A.ANR,M…A.INX,M…B.CTG
600 600  
601 -== //5.3 Improved reference metadata queries// ==
537 +== 5.3 Improved reference metadata queries ==
602 602  
603 603  Reference metadata queries have been improved with a number of new options to retrieve metadata reports.
604 604  
... ... @@ -614,7 +614,7 @@
614 614  
615 615  /metadata/structure/datastructure/BIS/BIS_CBS/1.0
616 616  
617 -== //5.4 Structural metadata maintenance// ==
553 +== 5.4 Structural metadata maintenance ==
618 618  
619 619  Support has been added for maintenance of structural metadata.
620 620  
... ... @@ -622,62 +622,64 @@
622 622  
623 623  = 6 XML, JSON, CSV and EDI Transmission formats =
624 624  
625 -== //6.1 SDMX-ML// ==
561 +== 6.1 SDMX-ML ==
626 626  
627 627  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.
628 628  
629 -=== Structure message ===
630 -
565 +(% class="wikigeneratedid" id="HStructuremessage" %)
566 +**Structure message**
631 631  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.
632 632  
633 633  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:
634 634  
635 -|**Artefact type**|**Version 2.1 Collection**|**Version 3.0 Collection**
636 -|AgencyScheme|OrganisationSchemes|AgencySchemes
637 -|DataConsumerScheme|OrganisationSchemes|DataConsumerSchemes
638 -|DataProviderScheme|OrganisationSchemes|DataProviderSchemes
639 -|MetadataProviderScheme|OrganisationSchemes|MetadataProviderSchemes
640 -|OrganisationUnitScheme|OrganisationSchemes|OrganisationUnitSchemes
641 -|GeographicCodelist|Codelists|GeographicCodelists
642 -|GeoGridCodelist|Codelists|GeoGridCodelists
643 -|ConceptScheme|Concepts|ConceptSchemes
644 -|ValueList|Codelists|ValueLists
645 -|StructureMap|StructureMappings|StructureMaps
646 -|RepresentationMap|StructureMappings|RepresentationMaps
647 -|ConceptSchemeMap|StructureMappings|ConceptSchemeMaps
648 -|CategorySchemeMap|StructureMappings|CategorySchemeMaps
649 -|OrganisationSchemeMap|StructureMappings|OrganisationSchemeMaps
650 -|ReportingTaxonomyMap|StructureMappings|ReportingTaxonomyMaps
651 -|DataConstraint|Constraints|DataConstraints
652 -|MetadataConstraint|Constraints|MetadataConstraints
653 -|MetadataProvisionAgreement|ProvisionAgreement|MetadataProvisionAgreements
654 -|CustomTypeScheme|CustomTypes|CustomTypeSchemes
655 -|VtlMappingScheme|VtlMappings|VtlMappingSchemes
656 -|NamePersonalisationScheme|NamePersonalisations|NamePersonalisationSchemes
657 -|RulesetScheme|Rulesets|RulesetSchemes
658 -|TransformationScheme|Transformations|TransformationSchemes
659 -|UserDefinedOperatorScheme|UserDefinedOperators|UserDefinedOperatorSchemes
571 +(% style="width:1102.04px" %)
572 +|(% style="width:321px" %)**Artefact type**|(% style="width:351px" %)**Version 2.1 Collection**|(% style="width:426px" %)**Version 3.0 Collection**
573 +|(% style="width:321px" %)AgencyScheme|(% style="width:351px" %)OrganisationSchemes|(% style="width:426px" %)AgencySchemes
574 +|(% style="width:321px" %)DataConsumerScheme|(% style="width:351px" %)OrganisationSchemes|(% style="width:426px" %)DataConsumerSchemes
575 +|(% style="width:321px" %)DataProviderScheme|(% style="width:351px" %)OrganisationSchemes|(% style="width:426px" %)DataProviderSchemes
576 +|(% style="width:321px" %)MetadataProviderScheme|(% style="width:351px" %)OrganisationSchemes|(% style="width:426px" %)MetadataProviderSchemes
577 +|(% style="width:321px" %)OrganisationUnitScheme|(% style="width:351px" %)OrganisationSchemes|(% style="width:426px" %)OrganisationUnitSchemes
578 +|(% style="width:321px" %)GeographicCodelist|(% style="width:351px" %)Codelists|(% style="width:426px" %)GeographicCodelists
579 +|(% style="width:321px" %)GeoGridCodelist|(% style="width:351px" %)Codelists|(% style="width:426px" %)GeoGridCodelists
580 +|(% style="width:321px" %)ConceptScheme|(% style="width:351px" %)Concepts|(% style="width:426px" %)ConceptSchemes
581 +|(% style="width:321px" %)ValueList|(% style="width:351px" %)Codelists|(% style="width:426px" %)ValueLists
582 +|(% style="width:321px" %)StructureMap|(% style="width:351px" %)StructureMappings|(% style="width:426px" %)StructureMaps
583 +|(% style="width:321px" %)RepresentationMap|(% style="width:351px" %)StructureMappings|(% style="width:426px" %)RepresentationMaps
584 +|(% style="width:321px" %)ConceptSchemeMap|(% style="width:351px" %)StructureMappings|(% style="width:426px" %)ConceptSchemeMaps
585 +|(% style="width:321px" %)CategorySchemeMap|(% style="width:351px" %)StructureMappings|(% style="width:426px" %)CategorySchemeMaps
586 +|(% style="width:321px" %)OrganisationSchemeMap|(% style="width:351px" %)StructureMappings|(% style="width:426px" %)OrganisationSchemeMaps
587 +|(% style="width:321px" %)ReportingTaxonomyMap|(% style="width:351px" %)StructureMappings|(% style="width:426px" %)ReportingTaxonomyMaps
588 +|(% style="width:321px" %)DataConstraint|(% style="width:351px" %)Constraints|(% style="width:426px" %)DataConstraints
589 +|(% style="width:321px" %)MetadataConstraint|(% style="width:351px" %)Constraints|(% style="width:426px" %)MetadataConstraints
590 +|(% style="width:321px" %)MetadataProvisionAgreement|(% style="width:351px" %)ProvisionAgreement|(% style="width:426px" %)MetadataProvisionAgreements
591 +|(% style="width:321px" %)CustomTypeScheme|(% style="width:351px" %)CustomTypes|(% style="width:426px" %)CustomTypeSchemes
592 +|(% style="width:321px" %)VtlMappingScheme|(% style="width:351px" %)VtlMappings|(% style="width:426px" %)VtlMappingSchemes
593 +|(% style="width:321px" %)NamePersonalisationScheme|(% style="width:351px" %)NamePersonalisations|(% style="width:426px" %)NamePersonalisationSchemes
594 +|(% style="width:321px" %)RulesetScheme|(% style="width:351px" %)Rulesets|(% style="width:426px" %)RulesetSchemes
595 +|(% style="width:321px" %)TransformationScheme|(% style="width:351px" %)Transformations|(% style="width:426px" %)TransformationSchemes
596 +|(% style="width:321px" %)UserDefinedOperatorScheme|(% style="width:351px" %)UserDefinedOperators|(% style="width:426px" %)UserDefinedOperatorSchemes
660 660  
661 661  No changes have been made to the way the following artefacts are organised in the structure message:
662 662  
663 -|**Artefact type**|**Collection**
664 -|Dataflow|Dataflows
665 -|Metadataflow|Metadataflows
666 -|CategoryScheme|CategorySchemes
667 -|Categorisation|Categorisations
668 -|Codelist|Codelists
669 -|Hierarchy|Hierarchies
670 -|HierarchyAssociation|HierarchyAssociations
671 -|MetadataStructure|MetadataStructures
672 -|DataStructure|DataStructures
673 -|ReportingTaxonomy|ReportingTaxonomies
674 -|Process|Processes
675 -|ProvisionAgreement|ProvisionAgreements
600 +(% style="width:1106.04px" %)
601 +|(% style="width:326px" %)**Artefact type**|(% style="width:776px" %)**Collection**
602 +|(% style="width:326px" %)Dataflow|(% style="width:776px" %)Dataflows
603 +|(% style="width:326px" %)Metadataflow|(% style="width:776px" %)Metadataflows
604 +|(% style="width:326px" %)CategoryScheme|(% style="width:776px" %)CategorySchemes
605 +|(% style="width:326px" %)Categorisation|(% style="width:776px" %)Categorisations
606 +|(% style="width:326px" %)Codelist|(% style="width:776px" %)Codelists
607 +|(% style="width:326px" %)Hierarchy|(% style="width:776px" %)Hierarchies
608 +|(% style="width:326px" %)HierarchyAssociation|(% style="width:776px" %)HierarchyAssociations
609 +|(% style="width:326px" %)MetadataStructure|(% style="width:776px" %)MetadataStructures
610 +|(% style="width:326px" %)DataStructure|(% style="width:776px" %)DataStructures
611 +|(% style="width:326px" %)ReportingTaxonomy|(% style="width:776px" %)ReportingTaxonomies
612 +|(% style="width:326px" %)Process|(% style="width:776px" %)Processes
613 +|(% style="width:326px" %)ProvisionAgreement|(% style="width:776px" %)ProvisionAgreements
676 676  
677 677  From version 3.0, collections can appear in any order within a structure message.
678 678  
679 -=== Data messages ===
680 -
617 +(% class="wikigeneratedid" id="HDatamessages" %)
618 +**Data messages**
681 681  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.
682 682  
683 683  Specifically, the following data messages are not supported in version 3.0:
... ... @@ -694,44 +694,44 @@
694 694  
695 695  The time series variant of the Structure Specific Data message is no longer used.
696 696  
697 -=== Reference metadata message ===
698 -
635 +(% class="wikigeneratedid" id="HReferencemetadatamessage" %)
636 +**Reference metadata message**
699 699  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.
700 700  
701 -=== Registry structural metadata ‘query’ messages ===
702 -
639 +(% class="wikigeneratedid" id="HRegistrystructuralmetadata2018query2019messages" %)
640 +**Registry structural metadata ‘query’ messages**
703 703  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.
704 704  
705 -=== Structure referencing ===
706 -
643 +(% class="wikigeneratedid" id="HStructurereferencing" %)
644 +**Structure referencing**
707 707  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.
708 708  
709 -== //6.2 SDMX-JSON// ==
647 +== 6.2 SDMX-JSON ==
710 710  
711 711  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.
712 712  
713 -=== Structure message ===
714 -
651 +(% class="wikigeneratedid" id="HStructuremessage-1" %)
652 +**Structure message**
715 715  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.
716 716  
717 -=== Data message ===
718 -
655 +(% class="wikigeneratedid" id="HDatamessage" %)
656 +**Data message**
719 719  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.
720 720  
721 -=== Reference metadata message ===
722 -
659 +(% class="wikigeneratedid" id="HReferencemetadatamessage-1" %)
660 +**Reference metadata message**
723 723  The SDMX-JSON metadata message has also been updated to support the version 3.0 reference metadata and Metadataset specifications.
724 724  
725 -=== Structure referencing ===
726 -
663 +(% class="wikigeneratedid" id="HStructurereferencing-1" %)
664 +**Structure referencing**
727 727  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.
728 728  
729 -== //6.3 SDMX-CSV// ==
667 +== 6.3 SDMX-CSV ==
730 730  
731 731  CSV in SDMX is used transmission of data and reference metadata only.
732 732  
733 -=== Data message ===
734 -
671 +(% class="wikigeneratedid" id="HDatamessage-1" %)
672 +**Data message**
735 735  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:
736 736  
737 737  * 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
... ... @@ -740,11 +740,11 @@
740 740  
741 741  * 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.
742 742  
743 -=== Reference metadata message ===
744 -
681 +(% class="wikigeneratedid" id="HReferencemetadatamessage-2" %)
682 +**Reference metadata message**
745 745  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.
746 746  
747 -=== //6.4 EDI deprecation// ===
685 +== 6.4 EDI deprecation ==
748 748  
749 749  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.
750 750  
SUZ.Methodology.Code.MethodologyClass[0]