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Summary

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Title
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1 -SDMX STANDARDS
1 +SDMX 3.0 Standards. Summary of major changes and new functionality
Author
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1 -xwiki:XWiki.helena
1 +xwiki:XWiki.arturkryazhev
Content
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11 11  
12 12  = 1 Overview =
13 13  
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:
14 +[[SDMX>>doc: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:
15 15  
16 16  **Information Model**
17 17  
18 -* Simplification and improvement of the [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] model
18 +* Simplification and improvement of the [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] model
19 19  * Support for microdata
20 20  * Support for geospatial data
21 -* Support for [[code list>>doc:xwiki:Glossary.Code list.WebHome]] extension and discriminated union of [[code>>doc:xwiki:Glossary.Code.WebHome]] lists
21 +* Support for [[code list>>doc:Glossary.Code list.WebHome]] extension and discriminated union of [[code>>doc:Glossary.Code.WebHome]] lists
22 22  * Improvements to structure mapping
23 -* Improvements to [[code>>doc:xwiki:Glossary.Code.WebHome]] [[hierarchies>>doc:xwiki:Glossary.Hierarchy.WebHome]] for data discovery
23 +* Improvements to [[code>>doc:Glossary.Code.WebHome]] [[hierarchies>>doc:Glossary.Hierarchy.WebHome]] for data discovery
24 24  * Improvements to constraints
25 25  
26 26  **Versioning of Structural Metadata Artefacts**
27 27  
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"]])
28 +* Adoption of the three-number semantic versioning standard for [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:Glossary.Artefact.WebHome]] ([[https:~~/~~/semver.org/>>https://semver.org/||rel="noopener noreferrer" target="_blank"]])
29 29  
30 30  **REST Web Services Application Programming Interface (API)**
31 31  
32 32  * Change to a single ‘structure’ resource for structure queries simplifying the REST API specification by reducing the number of resources to five
33 33  * Improvements to data queries
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
34 +* Improvements to [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] queries
35 +* Support for [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] maintenance using HTTP PUT, POST and DELETE verbs
36 36  
37 37  **SOAP Web Services API**
38 38  
... ... @@ -40,11 +40,11 @@
40 40  
41 41  **XML, JSON, CSV and EDI Transmission formats**
42 42  
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
43 +* The [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]], [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] and [[SDMX>>doc: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:Glossary.Reference metadata.WebHome]] and microdata
44 +* Obsolete [[SDMX-ML>>doc: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:Glossary.SDMX-EDI.WebHome]] transmission format for structures and data has been deprecated
46 +* The organisation of structures into ‘collections’ in [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] structure messages has been flattened and simplified
47 +* The option to reference structures in [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc: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
48 48  
49 49  **Breaking Changes**
50 50  
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54 54  
55 55  **Content of the Document**
56 56  
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:
57 +The remainder of the document provides a summary of the main changes. More detailed information can be found the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] 3.0 Technical Specifications, in particular:
58 58  
59 59  * Section 2 – Information Model
60 60  * Section 5 – Registry Specification
61 61  * Section 6 – Technical Notes
62 -* [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]]-TWG GitHub for the REST API and the XML, JSON and CSV formats
62 +* [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]]-TWG GitHub for the REST API and the XML, JSON and CSV formats
63 63  
64 64  = 2 Summary of Breaking Changes in 3.0 =
65 65  
... ... @@ -93,14 +93,14 @@
93 93  |(% style="width:130px" %)**SDMX-ML**|(% style="width:820px" %)(((
94 94  The following legacy XML data messages have been deprecated:
95 95  
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)
96 +[[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Generic (time-series) data message
97 +[[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Compact (time-series) data message
98 +[[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Utility (time-series) data message
99 +[[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Cross-Sectional data message [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 2.1 Generic data messages (for observations, time-series and cross-sectional data)
100 100  
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.
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:Glossary.Data structure definition.WebHome]], [[Dataflow>>doc:Glossary.Dataflow.WebHome]] and [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] using their Agency, ID and (% style="color:#2ecc71" %)Version(%%). The time series variant of the message has also been deprecated.
102 102  
103 -The [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] structure message is not backwardly compatible primarily due to:
103 +The [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] structure message is not backwardly compatible primarily due to:
104 104  
105 105  * Changes to the information model
106 106  * Changes to the way the structures are organised into ‘collections’ within the message
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107 107  * Deprecation of the Agency, ID, (% style="color:#2ecc71" %)Version(%%) option for referencing of structures in messages
108 108  )))
109 109  |(% 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.
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:Glossary.Data set.WebHome]] with potentially different Data Structure Definitions.
111 111  
112 112  The JSON structure message is not backwardly compatible primarily due to:
113 113  
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116 116  * Deprecation of the Agency, ID, (% style="color:#2ecc71" %)Version(%%) option for referencing of structures in messages
117 117  )))
118 118  |(% 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.
119 +|(% style="width:130px" %)**SDMX-CSV**|(% style="width:820px" %)The CSV data and [[reference metadata>>doc: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.
120 120  )))
121 121  
122 122  == 2.3 Information Model ==
... ... @@ -124,36 +124,36 @@
124 124  (((
125 125  (% style="width:955.039px" %)
126 126  |(% 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.
127 +The (% style="color:#2ecc71" %)version(%%) 3.0 [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] ([[DSD>>doc:Glossary.Data structure definition.WebHome]]) model is not directly backwardly compatible with 2.1 primarily due to the deprecation of the special MeasureDimension.
128 128  
129 129  //Conversion guidance for implementors//
130 130  
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.
131 +(% style="color:#2ecc71" %)Version(%%) 2.1 DSDs can be converted to the 3.0 model by creating a [[measure>>doc:Glossary.Measure.WebHome]] with the “[[MEASURE>>doc:Glossary.Measure.WebHome]]” (% style="color:#2ecc71" %)concept(%%) role applied as described in paragraph 3.5.
132 132  
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]].
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:Glossary.Measure.WebHome]] and value arrays for [[measures>>doc:Glossary.Measure.WebHome]] and [[attributes>>doc:Glossary.Attribute.WebHome]].
134 134  )))
135 135  |(% 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(%%).
136 +The structure mapping model has changed significantly in (% style="color:#2ecc71" %)version(%%) 3.0 with deprecation of the [[Structure Set>>doc:Glossary.Structure set.WebHome]] [[maintainable artefact>>doc:Glossary.Maintainable artefact.WebHome]] and introduction of five new ones: [[Representation>>doc:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%) and four variants of [[item scheme>>doc:Glossary.Item scheme.WebHome]] (% style="color:#2ecc71" %)map(%%).
137 137  
138 138  //Conversion guidance for implementors//
139 139  
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.
140 +(% style="color:#2ecc71" %)Version(%%) 2.1 [[structure sets>>doc:Glossary.Structure set.WebHome]] can be practically converted to the (% style="color:#2ecc71" %)version(%%) 3.0 structure mapping model.
141 141  
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.
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: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:Glossary.Maintainable artefact.WebHome]], but details of the original [[Structure Set>>doc:Glossary.Structure set.WebHome]] [[artefacts>>doc:Glossary.Artefact.WebHome]] are lost.
143 143  )))
144 144  |(% 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.
145 +The [[reference metadata>>doc: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:Glossary.Data structure definition.WebHome]], [[Metadata Structure Definition>>doc:Glossary.Metadata structure definition.WebHome]] and [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] [[artefacts>>doc:Glossary.Artefact.WebHome]]. Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] and Metadata Provider Scheme have been added. Metadatasets are now identifiable.
146 146  
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.
147 +(% style="color:#2ecc71" %)Version(%%) 2.1 [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] models are not valid in (% style="color:#2ecc71" %)version(%%) 3.0.
148 148  
149 149  //Conversion guidance for implementors//
150 150  
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.
151 +A (% style="color:#2ecc71" %)version(%%) 2.1 [[Metadata Structure Definition>>doc: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:Glossary.Metadataflow.WebHome]]. Further, conversion of a [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] for collecting [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] against a [[dataset>>doc:Glossary.Data set.WebHome]] would need to make changes to the [[dataset>>doc:Glossary.Data set.WebHome]]’s [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]. As the [[Data Structure Definition>>doc: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: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:Glossary.Provision agreement.WebHome]] which would need to be created if not already in existence.
152 152  
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]].
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:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreements>>doc: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:Glossary.Data structure definition.WebHome]].
154 154  )))
155 155  |(% 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.
156 +The (% style="color:#2ecc71" %)version(%%) 2.1 Content (% style="color:#2ecc71" %)Constraint(%%) [[artefact>>doc: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.
157 157  
158 158  //Conversion guidance for implementors//
159 159  
... ... @@ -162,11 +162,11 @@
162 162  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.
163 163  )))
164 164  |(% 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.
165 +The (% style="color:#2ecc71" %)version(%%) 2.1 Hierarchical Codelist [[artefact>>doc:Glossary.Artefact.WebHome]] has been deprecated in (% style="color:#2ecc71" %)version(%%) 3.0 and replaced by two new [[artefacts>>doc:Glossary.Artefact.WebHome]], [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] and [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] Association.
166 166  
167 167  //Conversion guidance for implementors//
168 168  
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.
169 +(% style="color:#2ecc71" %)Version(%%) 2.1 Hierarchical Codelists can be successfully converted to the (% style="color:#2ecc71" %)version(%%) 3.0 [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] model. Information on which [[artefacts>>doc:Glossary.Artefact.WebHome]] to link the [[hierarchies>>doc:Glossary.Hierarchy.WebHome]] to on what context would need to be added as a separate procedure.
170 170  
171 171  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
172 172  )))
... ... @@ -180,9 +180,9 @@
180 180  
181 181  //Figure 1 Version 3.0 simplified Information Model UML class diagram with ‘heat map’ illustrating the areas with most change//
182 182  
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.
183 +The schematic above is a simplified UML class diagram of the [[SDMX>>doc: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.
184 184  
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.
185 +A number of ancillary structures including organisation schemes, process and [[reporting taxonomy>>doc:Glossary.Reporting taxonomy.WebHome]] are unchanged and have not been shown. Similarly, Organisation Scheme (% style="color:#2ecc71" %)Map(%%) and [[Reporting Taxonomy>>doc: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.
186 186  
187 187  == 3.2 Key Changes from Version 2.1 ==
188 188  
... ... @@ -189,14 +189,14 @@
189 189  New Maintainable Artefacts
190 190  
191 191  * Structure (% style="color:#2ecc71" %)Map
192 -* [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map
192 +* [[Representation>>doc:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map
193 193  * Organisation Scheme (% style="color:#2ecc71" %)Map
194 194  * (% style="color:#2ecc71" %)Concept(%%) Scheme (% style="color:#2ecc71" %)Map
195 195  * Category Scheme (% style="color:#2ecc71" %)Map
196 196  * Reporting Taxonomy (% style="color:#2ecc71" %)Map
197 197  * Value List
198 -* [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]]
199 -* [[Hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] Association
198 +* [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]]
199 +* [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] Association
200 200  * Metadata (% style="color:#2ecc71" %)Constraint
201 201  * Data (% style="color:#2ecc71" %)Constraint
202 202  * Metadata Provision Agreement
... ... @@ -211,19 +211,19 @@
211 211  
212 212  Removed Maintainable Artefacts
213 213  
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
214 +* Structure Set – replaced by Structure (% style="color:#2ecc71" %)Map(%%) and the four [[item scheme>>doc:Glossary.Item scheme.WebHome]] maps
215 +* Hierarchical Codelist – replaced by [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] and [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] Association
216 216  * (% style="color:#2ecc71" %)Constraint(%%) – replaced by Data (% style="color:#2ecc71" %)Constraint(%%) and Metadata (% style="color:#2ecc71" %)Constraint
217 217  
218 218  Changed Maintainable Artefacts
219 219  
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]]
220 +* Data Structure Definition – support for microdatasets and [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] linked to data
221 +* Metadataflow – simplifies exchange of [[reference metadata>>doc:Glossary.Reference metadata.WebHome]], in particular those linked to structures
222 +* Metadata Structure Definition – simplified model for [[reference metadata>>doc:Glossary.Reference metadata.WebHome]]
223 223  * Codelist – support for codelist extension and geospatial specialised codelists (GeographicCodelist, GeoGridCodelist)
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
224 +* [[VTL>>doc:Glossary.Validation and transformation language.WebHome]] Mapping Scheme – [[VTL>>doc:Glossary.Validation and transformation language.WebHome]] (% style="color:#2ecc71" %)Concept(%%) Mapping Scheme removed to align the [[VTL>>doc:Glossary.Validation and transformation language.WebHome]] / [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] interface with the 3.0 model
225 225  
226 -New [[Component>>doc:xwiki:Glossary.Component.WebHome]] [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] Types
226 +New [[Component>>doc:Glossary.Component.WebHome]] [[Representation>>doc:Glossary.Representation.WebHome]] Types
227 227  
228 228  * GeospatialInformation – a string type where the value is an expression defining a set of geographical features using a purpose-designed syntax
229 229  
... ... @@ -236,17 +236,17 @@
236 236  * Data providers
237 237  * Agencies
238 238  * Data consumers
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
239 +* [[VTL>>doc:Glossary.Validation and transformation language.WebHome]] transformation and expressions – with the exception of [[VTL>>doc:Glossary.Validation and transformation language.WebHome]] mapping scheme as already noted
240 240  * Reporting taxonomy
241 241  * Process
242 242  
243 243  == 3.4 Reference Metadata ==
244 244  
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.
245 +[[Reference metadata>>doc: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.
246 246  
247 247  (% class="wikigeneratedid" id="HSimplifyMetadataStructureDefinition" %)
248 248  **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.
249 +The [[Metadata Structure Definition>>doc:Glossary.Metadata structure definition.WebHome]] ([[MSD>>doc:Glossary.Metadata structure definition.WebHome]]) has been simplified to remove target information, and the support of multiple report structures. The [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] now only contains Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] which are used to define the structure of a report.
250 250  
251 251  [[image:SDMX 3-0-0 Major Changes FINAL-1.0_en_ad5f5c97.png||height="346" width="494"]]
252 252  
... ... @@ -260,15 +260,15 @@
260 260  **Change to reference metadata reported against data**
261 261  
262 262  (% 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.
263 +[[Reference metadata>>doc:Glossary.Reference metadata.WebHome]] associated with [[datasets>>doc:Glossary.Data set.WebHome]], data series or observations are now reported with the data. The [[dataset>>doc:Glossary.Data set.WebHome]]’s [[DSD>>doc:Glossary.Data structure definition.WebHome]] must reference an [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] to define the structure of its [[reference metadata>>doc:Glossary.Reference metadata.WebHome]]. In practice [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] for data are transmitted as part of the data message. The metadata [[attributes>>doc:Glossary.Attribute.WebHome]] are treated in a similar way to the data [[attributes>>doc:Glossary.Attribute.WebHome]] appearing in the message at the [[dataset>>doc:Glossary.Data set.WebHome]], data series or individual observation (% style="color:#2ecc71" %)level(%%) as appropriate. In contrast to simple data [[attributes>>doc:Glossary.Attribute.WebHome]], metadata [[attributes>>doc:Glossary.Attribute.WebHome]] defined by an [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] can be organised into a hierarchical structure as illustrated in Figure 3 above. For this reason, metadata [[attributes>>doc:Glossary.Attribute.WebHome]] appear in data messages structured in the same way as metadata messages.
264 264  
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(%%).
265 +The [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] example below is an excerpt from a structure specific data message illustrating reporting of [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] with a hierarchical structure at the observation (% style="color:#2ecc71" %)level(%%).
266 266  
267 267  For completeness, the excerpt also shows:
268 268  
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]]
269 +* OBS_STATUS – a simple observation-(% style="color:#2ecc71" %)level(%%) data [[attribute>>doc:Glossary.Attribute.WebHome]]
270 +* TITLE – a multi-lingual data [[attribute>>doc:Glossary.Attribute.WebHome]]
271 +* SOURCE_AGENCY – a multi-value data [[attribute>>doc:Glossary.Attribute.WebHome]]
272 272  
273 273  > <Obs xsi:type="dsd:ObsType" OBS_VALUE="112" OBS_STAUS=”A” TIME_PERIOD="2010-09">
274 274  > <!—- complex multi-value and multi-lingual data attributes ~-~->
... ... @@ -315,11 +315,11 @@
315 315  **New - Metadata Provision Agreement**
316 316  
317 317  (% 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]].
318 +In (% style="color:#2ecc71" %)version(%%) 2.1 a [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] could be used to report information against a [[Dataflow>>doc:Glossary.Dataflow.WebHome]] or [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]. From (% style="color:#2ecc71" %)version(%%) 3.0 this is managed by two separate structures, the Data [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] and the Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]].
319 319  
320 320  (% class="wikigeneratedid" id="HMovetargettoMetadataflowandMetadataProvisionAgreement" %)
321 321  **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]].
322 +For [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] that is reported against structures, the allowable targets information which is used to specify what structures the [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] can be reported against, has moved to the [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and can be further refined in the Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]].
323 323  
324 324  (% class="wikigeneratedid" id="HAddmaintainablepropertiestoreferencemetadata" %)
325 325  **Add maintainable properties to reference metadata**
... ... @@ -327,11 +327,10 @@
327 327  
328 328  == 3.5 Microdata Exchange ==
329 329  
330 -Several changes have been made the Data Structure Definition to support microdata use cases in addition to aggregated time series.
330 +Several changes have been made the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] to support microdata use cases in addition to aggregated time series.
331 331  
332 332  (% class="wikigeneratedid" id="HMultiplemeasures" %)
333 -**Multiple measures**
334 -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 Data Structure Definition, and can be either mandatory or conditional. Creating a measure with the “MEASURE” concept role applied emulates the version 2.1 MeasureDimension behaviour as illustrated in the SDMX-ML example below:
333 +**Multiple measures**Multiple [[measures>>doc: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:Glossary.Measure.WebHome]]. [[Measures>>doc:Glossary.Measure.WebHome]] now act like any other [[component>>doc:Glossary.Component.WebHome]] in that they use (% style="color:#2ecc71" %)concepts(%%), can have their own local coded or uncoded [[representation>>doc:Glossary.Representation.WebHome]] defined within the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]], and can be either mandatory or conditional. Creating a [[measure>>doc:Glossary.Measure.WebHome]] with the “[[MEASURE>>doc: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:Glossary.SDMX-ML.WebHome]] example below:
335 335  
336 336  > <str:MeasureList id=”MeasureDescriptor”>
337 337  > <str:Measure id=”OBS_VALUE” minOccurs=”1” maxOccurs=”1” usage=”mandatory” > <str:ConceptIdentity>
... ... @@ -350,96 +350,98 @@
350 350  
351 351  (% class="wikigeneratedid" id="HMulti-valuemeasuresandattributes" %)
352 352  **Multi-value measures and attributes**
353 -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 //mandatory// or optional. In the SDMX-ML measure 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.
352 +Both [[measures>>doc:Glossary.Measure.WebHome]] and [[attributes>>doc: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:Glossary.Measure.WebHome]] or [[attribute>>doc:Glossary.Attribute.WebHome]] is //mandatory// or optional. In the [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] [[measure>>doc: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.
354 354  
355 355  (% class="wikigeneratedid" id="HAttributesrelationshiptomeasures" %)
356 356  **Attributes relationship to measures**
357 -In addition to attaching attributes to a specific level within the dataset, their relationship 202 to measures can also be defined.
356 +In addition to attaching [[attributes>>doc:Glossary.Attribute.WebHome]] to a specific (% style="color:#2ecc71" %)level(%%) within the [[dataset>>doc:Glossary.Data set.WebHome]], their relationship 202 to [[measures>>doc:Glossary.Measure.WebHome]] can also be defined.
358 358  
359 359  (% class="wikigeneratedid" id="HValuelists" %)
360 360  **Value lists**
361 -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. That allows ValueItems (the equivalent to Code) to contain symbols like ‘¥’ and ‘€’, but also means they are not identifiable.
360 +Value lists help in modelling microdata by providing an enumeration similar to [[code lists>>doc:Glossary.Code list.WebHome]] 206 but allowing any string values without being restricted to the rules of [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] identifiers. That allows ValueItems (the equivalent to [[Code>>doc:Glossary.Code.WebHome]]) to contain symbols like ‘¥’ and ‘€’, but also means they are not identifiable.
362 362  
363 363  == 3.6 Geospatial Data Exchange ==
364 364  
365 -The version 3.0 model has been extended to provide explicit support for geospatial data.
364 +The (% style="color:#2ecc71" %)version(%%) 3.0 model has been extended to provide explicit support for geospatial data.
366 366  
367 367  (% class="wikigeneratedid" id="HGeospatialInformationtype" %)
368 368  **GeospatialInformation type**
369 -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.
368 +A new GeospatialInformation string type has been added which can be used as the [[representation>>doc:Glossary.Representation.WebHome]] for any [[dimension>>doc:Glossary.Dimension.WebHome]], [[attribute>>doc:Glossary.Attribute.WebHome]] or measure [[component>>doc: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.
370 370  
371 371  (% class="wikigeneratedid" id="HGeospatialcodelists" %)
372 372  **Geospatial code lists**
373 -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:
374 374  
373 +(% class="wikigeneratedid" id="HGeospatialcodelists" %)
374 +Two new specialised types of [[code list>>doc:Glossary.Code list.WebHome]] have been added where the definition of each [[code>>doc:Glossary.Code.WebHome]] includes additional geospatial information in addition to the standard ID, name and description:
375 +
375 375  * 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.
376 -* 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.
377 +* GeoGridCodelist – A [[code list>>doc: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.
377 377  
378 378  == 3.7 Structure Mapping ==
379 379  
380 -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.
381 +The [[Structure Set>>doc:Glossary.Structure set.WebHome]] in (% style="color:#2ecc71" %)version(%%) 2.1 is a container for many mapping structures including Data Structure (% style="color:#2ecc71" %)Map(%%), Codelist (% style="color:#2ecc71" %)Map(%%) and (% style="color:#2ecc71" %)Concept(%%) (% style="color:#2ecc71" %)Map(%%). For (% style="color:#2ecc71" %)version(%%) 3.0 the [[Structure Set>>doc:Glossary.Structure set.WebHome]] [[artefact>>doc:Glossary.Artefact.WebHome]] has been deprecated and replaced with a number of new maintainables giving better flexibility and reusability, specifically: Structure (% style="color:#2ecc71" %)Map(%%), [[Concept Scheme>>doc:Glossary.Concept scheme.WebHome]] (% style="color:#2ecc71" %)Map(%%), [[Representation>>doc:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%), [[Reporting Taxonomy>>doc:Glossary.Reporting taxonomy.WebHome]] (% style="color:#2ecc71" %)Map(%%), [[Category Scheme>>doc:Glossary.Category scheme.WebHome]] (% style="color:#2ecc71" %)Map(%%) and Organisation Scheme (% style="color:#2ecc71" %)Map(%%).
381 381  
382 -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.
383 +The (% style="color:#2ecc71" %)version(%%) 2.1 Codelist (% style="color:#2ecc71" %)Map(%%) been replaced with [[Representation>>doc:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%) which allows mappings to be defined between any combination of [[Code Lists>>doc:Glossary.Code list.WebHome]], Value Lists and noncoded [[representations>>doc:Glossary.Representation.WebHome]] such as text strings and numbers.
383 383  
384 384  (% class="wikigeneratedid" id="HMany-to-manysourceandtargetcomponents" %)
385 385  **Many-to-many source and target components**
386 -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:
387 +Structure mapping rules may be defined with both multiple source [[components>>doc:Glossary.Component.WebHome]] and multiple target [[components>>doc:Glossary.Component.WebHome]] in contrast to (% style="color:#2ecc71" %)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>>doc:Glossary.Component.WebHome]]. For instance:
387 387  
388 -Set the output component INDICATOR=”DE_A” if the input components are FREQ=”A” and REF_AREA=”DE”.
389 +Set the output [[component>>doc:Glossary.Component.WebHome]] INDICATOR=”DE_A” if the input [[components>>doc:Glossary.Component.WebHome]] are FREQ=”A” and REF_AREA=”DE”.
389 389  
390 -Similarly, an n-n rule may also set the values of any number of output components:
391 +Similarly, an n-n rule may also set the values of any number of output [[components>>doc:Glossary.Component.WebHome]]:
391 391  
392 -Set the output components FREQ=”A”, REF_AREA=”DE” if the input component INDICATOR=”DE_A”.
393 +Set the output [[components>>doc:Glossary.Component.WebHome]] FREQ=”A”, REF_AREA=”DE” if the input [[component>>doc:Glossary.Component.WebHome]] INDICATOR=”DE_A”.
393 393  
394 394  **Fixed source and target**
395 -The Structure Map may now define input or output components which have a fixed value.
396 +The Structure (% style="color:#2ecc71" %)Map(%%) may now define input or output [[components>>doc:Glossary.Component.WebHome]] which have a fixed value.
396 396  
397 397  (% class="wikigeneratedid" id="HTimerepresentationsmapping" %)
398 398  **Time representations mapping**
399 -Non SDMX time representations may now be described in a Structure Map, allowing them to be mapped into SDMX time formats.
400 +Non [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] time [[representations>>doc:Glossary.Representation.WebHome]] may now be described in a Structure (% style="color:#2ecc71" %)Map(%%), allowing them to be (% style="color:#2ecc71" %)mapped(%%) into [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] [[time formats>>doc:Glossary.Time format.WebHome]].
400 400  
401 401  (% class="wikigeneratedid" id="HRegularexpressionandsubstringmappings" %)
402 402  **Regular expression and substring mappings**
403 -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.
404 +All item (% style="color:#2ecc71" %)maps(%%) allow the use of regular expressions and substrings to match source values, specifically: [[Concept Scheme>>doc:Glossary.Concept scheme.WebHome]] (% style="color:#2ecc71" %)Map(%%), [[Reporting Taxonomy>>doc:Glossary.Reporting taxonomy.WebHome]] (% style="color:#2ecc71" %)Map(%%), [[Category Scheme>>doc:Glossary.Category scheme.WebHome]] (% style="color:#2ecc71" %)Map(%%) and Organisation Scheme (% style="color:#2ecc71" %)Map(%%).
404 404  
405 405  (% class="wikigeneratedid" id="HItemmapsvalidityperiod" %)
406 406  **Item maps validity period**
407 -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.
408 +Item (% style="color:#2ecc71" %)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 (% style="color:#2ecc71" %)mapped(%%) is within the period.
408 408  
409 409  == 3.8 Constraints ==
410 410  
411 -Constraints in version 3.0 are modelled using two separate artefacts which replace the version 2.1 content constraint:
412 +(% style="color:#2ecc71" %)Constraints(%%) in (% style="color:#2ecc71" %)version(%%) 3.0 are modelled using two separate [[artefacts>>doc:Glossary.Artefact.WebHome]] which replace the (% style="color:#2ecc71" %)version(%%) 2.1 content (% style="color:#2ecc71" %)constraint(%%):
412 412  
413 -* data constraint for data; and
414 -* metadata constraint for reference metadata.
414 +* data (% style="color:#2ecc71" %)constraint(%%) for data; and
415 +* metadata (% style="color:#2ecc71" %)constraint(%%) for [[reference metadata>>doc:Glossary.Reference metadata.WebHome]].
415 415  
416 -Metadata constraint differs from its data counterpart in having a simplified cube region model better suited to reference metadata reporting use cases and not carrying details of the constrained targets – that information instead being defined directly within the metadataflow and Metadata Provision Agreement. Thus, metadata related constraints only specify constraints to the values of metadata attributes.
417 +Metadata (% style="color:#2ecc71" %)constraint(%%) differs from its data counterpart in having a simplified cube region model better suited to [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] reporting use cases and not carrying details of the constrained targets – that information instead being defined directly within the [[metadataflow>>doc:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]]. Thus, metadata related (% style="color:#2ecc71" %)constraints(%%) only specify (% style="color:#2ecc71" %)constraints(%%) to the values of metadata attributes.
417 417  
418 -The ‘%’ wildcard character can now be used when defining cube region constraints to match multiple codes with a single expression, for instance for economic activity, ISIC4_% matches all codes beginning with ‘ISIC4_’ avoiding the need to maintain an explicit list.
419 +The ‘%’ wildcard character can now be used when defining cube region (% style="color:#2ecc71" %)constraints(%%) to match multiple [[codes>>doc:Glossary.Code.WebHome]] with a single expression, for instance for [[economic activity>>doc:Glossary.Economic activity.WebHome]], ISIC4_% matches all [[codes>>doc:Glossary.Code.WebHome]] beginning with ‘ISIC4_’ avoiding the need to maintain an explicit list.
419 419  
420 -The validity period definition has been moved from the constraint to the individual constraining terms, specifically CubeRegion, DataKeySet and MetadataTargetRegion providing more granular control.
421 +The validity period definition has been moved from the (% style="color:#2ecc71" %)constraint(%%) to the individual constraining terms, specifically CubeRegion, DataKeySet and MetadataTargetRegion providing more granular control.
421 421  
422 -Attachment constraints have been deprecated due to a lack of use cases.
423 +Attachment (% style="color:#2ecc71" %)constraints(%%) have been deprecated due to a lack of use cases.
423 423  
424 424  == 3.9 Code List Extension ==
425 425  
426 -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.
427 +In addition to the two new specialised geospatial forms, the option has been added to define a [[code list>>doc:Glossary.Code list.WebHome]] as an extension of, or by inheriting [[codes>>doc:Glossary.Code.WebHome]] from, other lists. An optional prefix can be added to inherited [[codes>>doc:Glossary.Code.WebHome]] to disambiguate duplicates.
427 427  
428 -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.
429 +This feature allows new [[code lists>>doc:Glossary.Code list.WebHome]] to be easily derived from existing lists without the need to make and manually maintain copies. When querying for extended [[code list>>doc:Glossary.Code list.WebHome]] structures using the REST API, the option has been added to retrieve either the definition or the materialised list. Traditional literal lists of [[codes>>doc:Glossary.Code.WebHome]] continue to be supported.
429 429  
430 430  == 3.10 Discriminated Union of Code Lists ==
431 431  
432 -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.
433 +Combining [[code list>>doc:Glossary.Code list.WebHome]] extension with wildcarded (% style="color:#2ecc71" %)constraints(%%) solves the discriminated union of [[code lists>>doc:Glossary.Code list.WebHome]] problem where a classification or breakdown has multiple “variants” which are all valid but mutually exclusive. A common example is [[economic activity>>doc:Glossary.Economic activity.WebHome]] where several alternative classification schemes are in use including ISIC revisions 1 to 4 and NACE as used in the European Community.
433 433  
434 434  == 3.11 Code Hierarchies ==
435 435  
436 -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).
437 +[[Code>>doc:Glossary.Code.WebHome]] [[hierarchies>>doc:Glossary.Hierarchy.WebHome]] allow the definition of complex [[hierarchies>>doc:Glossary.Hierarchy.WebHome]] of [[codes>>doc:Glossary.Code.WebHome]] from potentially multiple lists for data discovery purposes. Hierarchical Codelist has been deprecated and replaced by two new [[artefacts>>doc:Glossary.Artefact.WebHome]]: [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] – the actual [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] of [[codes>>doc:Glossary.Code.WebHome]], and [[Hierarchy>>doc:Glossary.Hierarchy.WebHome]] Association links [[hierarchies>>doc:Glossary.Hierarchy.WebHome]] directly to any other identifiable object, a capability missing from the (% style="color:#2ecc71" %)version(%%) 2.1 model. Further, the linkage can be within a particular context, for instance linking a [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] to a [[dimension>>doc:Glossary.Dimension.WebHome]] within the context of a specific [[Dataflow>>doc:Glossary.Dataflow.WebHome]] ([[dimension>>doc:Glossary.Dimension.WebHome]] REF_AREA in the context of the ECB:EXR [[Dataflow>>doc:Glossary.Dataflow.WebHome]]).
437 437  
438 438  = 4 Versioning of Structural Metadata Artefacts =
439 439  
440 -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.
441 +(% style="color:#2ecc71" %)Version(%%) 3.0 adopts semantic versioning principles for versioning of metadata [[artefacts>>doc:Glossary.Artefact.WebHome]] 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 (% style="color:#2ecc71" %)version(%%) [[artefacts>>doc:Glossary.Artefact.WebHome]] by omitting the (% style="color:#2ecc71" %)//version//(%%) property. The (% style="color:#2ecc71" %)version(%%) number no longer defaults to 1.0 if not explicitly set.
441 441  
442 -Semantic version numbers are three digits:
443 +Semantic (% style="color:#2ecc71" %)version(%%) numbers are three digits:
443 443  
444 444  MAJOR.MINOR.PATCH
445 445  
... ... @@ -458,26 +458,26 @@
458 458  
459 459  Additional constructs are possible for dependency management when referencing structures. For instance:
460 460  
461 -2.3+.1  Means the currently latest available version >= “2.3.1” and < “3.0.0” (all backwards compatible versions >= “2.3.1”).
462 -2+.3.1  Means the currently latest available version >= “2.3.1” (even if not backwards compatible).
462 +2.3+.1  Means the currently latest available (% style="color:#2ecc71" %)version(%%) >= “2.3.1” and < “3.0.0” (all backwards compatible (% style="color:#2ecc71" %)versions(%%) >= “2.3.1”).
463 +2+.3.1  Means the currently latest available (% style="color:#2ecc71" %)version(%%) >= “2.3.1” (even if not backwards compatible).
463 463  
464 464  == Draft structures ==
465 465  
466 -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.
467 +A key principle is that semantically versioned structures are immutable and must not be changed without a corresponding change to the (% style="color:#2ecc71" %)version(%%) number, except where explicitly marked as draft using extensions to the (% style="color:#2ecc71" %)version(%%) number.
467 467  
468 468  MAJOR.MINOR.PATCH-EXTENSION
469 469  
470 -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.
471 +1.10.0-draft  Means that (% style="color:#2ecc71" %)version(%%) 1.10.0 is still being modified and may change – equivalent to setting isFinal=false in [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] 2.1.
471 471  1.10.0-unstable  Alternative to -draft.
472 472  1.10.0-notfinal  Alternative to -draft.
473 473  
474 -The SDMX 2.1 isFinal property is deprecated in 3.0.
475 +The [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] 2.1 isFinal property is deprecated in 3.0.
475 475  
476 476  = 5 REST Web Services API =
477 477  
478 478  == 5.1 Simplified list of resources ==
479 479  
480 -The version 3.0 REST API has just five main resources:
481 +The (% style="color:#2ecc71" %)version(%%) 3.0 REST API has just five main resources:
481 481  
482 482  * structure
483 483  * data
... ... @@ -485,27 +485,27 @@
485 485  * availability
486 486  * metadata
487 487  
488 -All structure and item queries have been organised under the structure resource in contrast to the version 2.1 API which specified a separate resource for each structure.
489 +All structure and item queries have been organised under the structure resource in contrast to the (% style="color:#2ecc71" %)version(%%) 2.1 API which specified a separate resource for each structure.
489 489  
490 -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.
491 +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 (% style="color:#2ecc71" %)version(%%) 3.0 API is not backwardly compatible.
491 491  
492 492  == 5.2 Improved data queries ==
493 493  
494 -Data queries have been changed to provide more granular selections from contexts wider than just a Dataflow.
495 +Data queries have been changed to provide more granular selections from contexts wider than just a [[Dataflow>>doc:Glossary.Dataflow.WebHome]].
495 495  
496 496  (% class="wikigeneratedid" id="HExtendthecontextofdataretrieval" %)
497 497  **Extend the context of data retrieval**
498 -Version 2.1 data queries always retrieved data from a single specific Dataflow. In version 3.0, the query context may be specified as:
499 +(% style="color:#2ecc71" %)Version(%%) 2.1 data queries always retrieved data from a single specific [[Dataflow>>doc:Glossary.Dataflow.WebHome]]. In (% style="color:#2ecc71" %)version(%%) 3.0, the query context may be specified as:
499 499  
500 -* Dataflow;
501 -* Data Structure Definition – i.e., all Dataflows that use it; or
502 -* Provision Agreement – i.e., all Dataflows associated with it.
501 +* [[Dataflow>>doc:Glossary.Dataflow.WebHome]];
502 +* Data Structure Definition – i.e., all [[Dataflows>>doc:Glossary.Dataflow.WebHome]] that use it; or
503 +* Provision Agreement – i.e., all [[Dataflows>>doc:Glossary.Dataflow.WebHome]] associated with it.
503 503  
504 -Data queries may also search across datasets, for instance “retrieve all data about a country”.
505 +Data queries may also search across [[datasets>>doc:Glossary.Data set.WebHome]], for instance “retrieve all data about a country”.
505 505  
506 506  (% class="wikigeneratedid" id="HComponent-basedfilters" %)
507 507  **Component-based filters**
508 -Expressions filtering on individual components can now be included as part of the data query URL.
509 +Expressions filtering on individual [[components>>doc:Glossary.Component.WebHome]] can now be included as part of the data query URL.
509 509  
510 510  /data/dataflow/ESTAT/ICP?c[REF_AREA]=CH&c[CONF_STATUS]=F
511 511  
... ... @@ -526,7 +526,7 @@
526 526  
527 527  (% class="wikigeneratedid" id="HSupportformultiplekeys" %)
528 528  **Support for multiple keys**
529 -Queries can now specify multiple series keys.
530 +Queries can now specify multiple [[series keys>>doc:Glossary.Series key.WebHome]].
530 530  
531 531  (% class="wikigeneratedid" %)
532 532  /data/dataflow/ESTAT/ICP/1.0.0/M…A.ANR,M…A.INX,M…B.CTG
... ... @@ -533,7 +533,7 @@
533 533  
534 534  == 5.3 Improved reference metadata queries ==
535 535  
536 -Reference metadata queries have been improved with a number of new options to retrieve metadata reports.
537 +[[Reference metadata>>doc:Glossary.Reference metadata.WebHome]] queries have been improved with a number of new options to retrieve metadata reports.
537 537  
538 538  **Get metadata reports by ID**
539 539  
... ... @@ -549,21 +549,21 @@
549 549  
550 550  == 5.4 Structural metadata maintenance ==
551 551  
552 -Support has been added for maintenance of structural metadata.
553 +Support has been added for maintenance of [[structural metadata>>doc:Glossary.Structural metadata.WebHome]].
553 553  
554 -HTTP verbs PUT, POST and DELETE may be used to submit SDMX-ML or SDMX-JSON structure messages to an SDMX registry for the purposes of adding, updating or deleting structural metadata artefacts.
555 +HTTP verbs PUT, POST and DELETE may be used to submit [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] or [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] structure messages to an [[SDMX registry>>doc:Glossary.SDMX Registry.WebHome]] for the purposes of adding, updating or deleting [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:Glossary.Artefact.WebHome]].
555 555  
556 556  = 6 XML, JSON, CSV and EDI Transmission formats =
557 557  
558 558  == 6.1 SDMX-ML ==
559 559  
560 -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.
561 +The [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] XML messages have been modified and updated for (% style="color:#2ecc71" %)version(%%) 3.0. While they broadly follow the same principles, there have been significant changes which break backward compatibility.
561 561  
562 562  (% class="wikigeneratedid" id="HStructuremessage" %)
563 563  **Structure message**
564 -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.
565 +The [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] structure message is used for transmission of [[structural metadata>>doc:Glossary.Structural metadata.WebHome]]. It closely reflects the [[SDMX information model>>doc:Glossary.SDMX Information Model.WebHome]] and has therefore been significantly updated for (% style="color:#2ecc71" %)version(%%) 3.0 with the addition of new structures, modifications where structures have changed, and removal of deprecated structures like Structure Set.
565 565  
566 -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:
567 +Additionally, the way the individual [[artefacts>>doc:Glossary.Artefact.WebHome]] are organised into ‘collections’ within the message has been significantly revised with a simpler flat structure adopted as set out in the following table:
567 567  
568 568  (% style="width:1102.04px" %)
569 569  |(% style="width:321px" %)**Artefact type**|(% style="width:351px" %)**Version 2.1 Collection**|(% style="width:426px" %)**Version 3.0 Collection**
... ... @@ -592,7 +592,7 @@
592 592  |(% style="width:321px" %)TransformationScheme|(% style="width:351px" %)Transformations|(% style="width:426px" %)TransformationSchemes
593 593  |(% style="width:321px" %)UserDefinedOperatorScheme|(% style="width:351px" %)UserDefinedOperators|(% style="width:426px" %)UserDefinedOperatorSchemes
594 594  
595 -No changes have been made to the way the following artefacts are organised in the structure message:
596 +No changes have been made to the way the following [[artefacts>>doc:Glossary.Artefact.WebHome]] are organised in the structure message:
596 596  
597 597  (% style="width:1106.04px" %)
598 598  |(% style="width:326px" %)**Artefact type**|(% style="width:776px" %)**Collection**
... ... @@ -609,79 +609,82 @@
609 609  |(% style="width:326px" %)Process|(% style="width:776px" %)Processes
610 610  |(% style="width:326px" %)ProvisionAgreement|(% style="width:776px" %)ProvisionAgreements
611 611  
612 -From version 3.0, collections can appear in any order within a structure message.
613 +From (% style="color:#2ecc71" %)version(%%) 3.0, collections can appear in any order within a structure message.
613 613  
614 614  (% class="wikigeneratedid" id="HDatamessages" %)
615 615  **Data messages**
616 -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.
617 617  
618 -Specifically, the following data messages are not supported in version 3.0:
618 +(% class="wikigeneratedid" id="HDatamessages" %)
619 +All legacy [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] data messages have been deprecated with the exception of Structure Specific Data which becomes the sole standard format for transmission of [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] data in XML in (% style="color:#2ecc71" %)version(%%) 3.0.
619 619  
620 -* SDMX-ML 1.0/2.0 Generic (time-series) data message
621 -* SDMX-ML 1.0/2.0 Compact (time-series) data message
622 -* SDMX-ML 1.0/2.0 Utility (time-series) data message
623 -* SDMX-ML 1.0/2.0 Cross-Sectional data message
624 -* SDMX-ML 2.1 Generic data messages (for observations, time-series and crosssectional data)
621 +Specifically, the following data messages are not supported in (% style="color:#2ecc71" %)version(%%) 3.0:
625 625  
626 -The Structure Specific Data message has been extended to support the transmission of microdata sets, in particular those with multiple measures and array values for measures and attributes.
623 +* [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Generic (time-series) data message
624 +* [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Compact (time-series) data message
625 +* [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Utility (time-series) data message
626 +* [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 1.0/2.0 Cross-Sectional data message
627 +* [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] 2.1 Generic data messages (for observations, time-series and crosssectional data)
627 627  
628 -As detailed in paragraph 3.4, the message now additionally allows data’s reference metadata to be reported as an integral part of the dataset. Like data attributes, these metadata attributes are included in the data message at the dataset, series or observation level as appropriate.
629 +The Structure Specific Data message has been extended to support the transmission of microdata sets, in particular those with multiple [[measures>>doc:Glossary.Measure.WebHome]] and array values for [[measures>>doc:Glossary.Measure.WebHome]] and [[attributes>>doc:Glossary.Attribute.WebHome]].
629 629  
631 +As detailed in paragraph 3.4, the message now additionally allows data’s [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] to be reported as an integral part of the [[dataset>>doc:Glossary.Data set.WebHome]]. Like data [[attributes>>doc:Glossary.Attribute.WebHome]], these metadata [[attributes>>doc:Glossary.Attribute.WebHome]] are included in the data message at the [[dataset>>doc:Glossary.Data set.WebHome]], series or observation (% style="color:#2ecc71" %)level(%%) as appropriate.
632 +
630 630  The time series variant of the Structure Specific Data message is no longer used.
631 631  
632 632  (% class="wikigeneratedid" id="HReferencemetadatamessage" %)
633 633  **Reference metadata message**
634 -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.
637 +The Generic Metadata message remains the standard format for transmission of [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] sets in XML but has been modified to support the revised (% style="color:#2ecc71" %)version(%%) 3.0 [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] model.
635 635  
636 636  (% class="wikigeneratedid" id="HRegistrystructuralmetadata2018query2019messages" %)
637 637  **Registry structural metadata ‘query’ messages**
638 -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.
641 +As a consequence of the deprecation of the SOAP API and standardisation on REST, the [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] ‘query’ messages have all been removed. In (% style="color:#2ecc71" %)version(%%) 3.0, querying an [[SDMX Registry>>doc:Glossary.SDMX Registry.WebHome]] for [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] is performed solely using REST GET.
639 639  
640 640  (% class="wikigeneratedid" id="HStructurereferencing" %)
641 641  **Structure referencing**
642 -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.
645 +The option to reference structures using Agency, ID and (% style="color:#2ecc71" %)Version(%%) has been removed. From [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] (% style="color:#2ecc71" %)version(%%) 3.0 URN is used for all referencing purposes with the exception of local references such as where groups reference [[dimensions>>doc:Glossary.Dimension.WebHome]] within a [[DSD>>doc:Glossary.Data structure definition.WebHome]].
643 643  
644 644  == 6.2 SDMX-JSON ==
645 645  
646 -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.
649 +Like [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]], the [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] messages have been significantly modified and updated for (% style="color:#2ecc71" %)version(%%) 3.0. They are not backwardly compatible with (% style="color:#2ecc71" %)version(%%) 2.1.
647 647  
648 648  (% class="wikigeneratedid" id="HStructuremessage-1" %)
649 649  **Structure message**
650 -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.
653 +The [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] structure message closely replicates the [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] equivalent. Like that of [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] it has been updated to align it with the (% style="color:#2ecc71" %)version(%%) 3.0 information model with addition, deletion and modification of [[artefacts>>doc:Glossary.Artefact.WebHome]] as required. The organisation of the structure collections has also been revised as detailed in paragraph 6.1.
651 651  
652 652  (% class="wikigeneratedid" id="HDatamessage" %)
653 653  **Data message**
654 -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.
657 +The [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] data message has similarly be updated. Additional changes have been made to allow a single message to carry data from multiple [[datasets>>doc:Glossary.Data set.WebHome]] with potentially different [[Data Structure Definitions>>doc:Glossary.Data structure definition.WebHome]] to support REST data queries of the form “retrieve all data about a country”. For this reason, the (% style="color:#2ecc71" %)version(%%) 3.0 [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] is not backwardly compatible with (% style="color:#2ecc71" %)version(%%) 2.1 data messages. Support has been added for the transmission of microdata and reporting of [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] on data as an integral part of the dataset.
655 655  
656 656  (% class="wikigeneratedid" id="HReferencemetadatamessage-1" %)
657 657  **Reference metadata message**
658 -The SDMX-JSON metadata message has also been updated to support the version 3.0 reference metadata and Metadataset specifications.
661 +The [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] metadata message has also been updated to support the (% style="color:#2ecc71" %)version(%%) 3.0 [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] and Metadataset specifications.
659 659  
660 660  (% class="wikigeneratedid" id="HStructurereferencing-1" %)
661 661  **Structure referencing**
662 -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.
665 +As for [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]], the option to reference structures using Agency, ID and (% style="color:#2ecc71" %)Version(%%) has been removed with URN used for all non-local referencing purposes.
663 663  
664 664  == 6.3 SDMX-CSV ==
665 665  
666 -CSV in SDMX is used transmission of data and reference metadata only.
669 +CSV in [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] is used transmission of data and [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] only.
667 667  
668 668  (% class="wikigeneratedid" id="HDatamessage-1" %)
669 669  **Data message**
670 -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:
673 +The [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]]-CSV data message has been modified to align with the (% style="color:#2ecc71" %)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:
671 671  
672 -* 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
675 +* An additional column identifying the type if the [[artefact>>doc:Glossary.Artefact.WebHome]] defining the structure of the data: “[[dataflow>>doc:Glossary.Dataflow.WebHome]]”, “datastructure” or “dataprovision”;
676 +* A column for the structure [[artefact>>doc:Glossary.Artefact.WebHome]]’s identification of the form
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674 -ESTAT:NA_MAIN(1.6.0) which replaces the dataflow identifier in version 2.1; and
678 +ESTAT:NA_MAIN(1.6.0) which replaces the [[dataflow>>doc:Glossary.Dataflow.WebHome]] identifier in (% style="color:#2ecc71" %)version(%%) 2.1; and
675 675  
676 -* 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.
680 +* A column for the [[dataset>>doc:Glossary.Data set.WebHome]] action: information, append, replace or delete, which is consistent with both the the [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] data messages.
677 677  
678 678  (% class="wikigeneratedid" id="HReferencemetadatamessage-2" %)
679 679  **Reference metadata message**
680 -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.
684 +The [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]]-CSV metadata message is new for (% style="color:#2ecc71" %)version(%%) 3.0 and, like the [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] and [[SDMX-JSON>>doc:Glossary.SDMX-JSON.WebHome]] equivalents, is used for the transmission [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] sets.
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682 682  == 6.4 EDI deprecation ==
683 683  
684 -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.
688 +The EDI format for transmission of both structures and data has been deprecated. (% style="color:#2ecc71" %)Version(%%) 3.0 is therefore not backwardly compatible with legacy EDI messages.
685 685  
686 686  = Appendix A – Version 2.1 Information Model =
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