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Last modified by Helena on 2025/09/10 11:19
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edited by Helena
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Change comment: Update document after refactoring.
To version 14.2
edited by Artur
on 2025/06/06 12:55
Change comment: Update document after refactoring.

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1 -Methodology.SDMX STANDARDS 3\.0\: SECTION 6\. TECHNICAL NOTES.WebHome
1 +Methodology.SDMX 3\.0 Standards\. Section 6\. Technical Notes.WebHome
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1 -xwiki:XWiki.helena
1 +xwiki:XWiki.arturkryazhev
Tags
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1 +Artefact|Attribute|Attribute relationship|Component|Data set|Data structure definition|Hierarchy|Maintainable artefact|Metadata set|Metadata structure definition|Metadataflow|Provision agreement|SDMX-ML|Statistical data and metadata exchange
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4 4  
5 5  == 5.1 Scope of the Metadata Structure Definition (MSD) ==
6 6  
7 -The scope of the [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] is reduced in [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 3.0, by means of simplifying its structure, but also in the way referenced [[Artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] are targeted. In fact, the [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] is restricted to play the role of a single container, without targeting any specific [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]]. The possible targets of [[Metadata Set>>doc:xwiki:Glossary.Metadata set.WebHome]] are specified in the [[Metadataflows>>doc:xwiki:Glossary.Metadataflow.WebHome]] or Metadata [[Provision Agreements>>doc:xwiki:Glossary.Provision agreement.WebHome]] relating to that [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]]. To achieve that, the structure of the [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] has changed in this (% style="color:#2ecc71" %)version(%%) of the standard. Moreover, the Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is introduced to include this feature.
7 +The scope of the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] is reduced in [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] 3.0, by means of simplifying its structure, but also in the way referenced [[Artefacts>>doc:Glossary.Artefact.WebHome]] are targeted. In fact, the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] is restricted to play the role of a single container, without targeting any specific [[Artefact>>doc:Glossary.Artefact.WebHome]]. The possible targets of [[Metadata Set>>doc:Glossary.Metadata set.WebHome]] are specified in the [[Metadataflows>>doc:Glossary.Metadataflow.WebHome]] or Metadata [[Provision Agreements>>doc:Glossary.Provision agreement.WebHome]] relating to that [[MSD>>doc:Glossary.Metadata structure definition.WebHome]]. To achieve that, the structure of the [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] has changed in this (% style="color:#e74c3c" %)version(%%) of the standard. Moreover, the Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] [[Artefact>>doc:Glossary.Artefact.WebHome]] is introduced to include this feature.
8 8  
9 -Two more changes, introduced in this (% style="color:#2ecc71" %)version(%%), are the following:
9 +Two more changes, introduced in this (% style="color:#e74c3c" %)version(%%), are the following:
10 10  
11 -* The [[Metadata Set>>doc:xwiki:Glossary.Metadata set.WebHome]] becomes a [[Maintainable Artefact>>doc:xwiki:Glossary.Maintainable artefact.WebHome]] but maintained by a Metadata Provider (another new [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] in this (% style="color:#2ecc71" %)version(%%)).
12 -* Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] may also be used in [[Data Structure Definitions>>doc:xwiki:Glossary.Data structure definition.WebHome]], as long as the latter reference the [[Metadata Structure Definition>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] that specify those Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]].
11 +* The [[Metadata Set>>doc:Glossary.Metadata set.WebHome]] becomes a [[Maintainable Artefact>>doc:Glossary.Maintainable artefact.WebHome]] but maintained by a Metadata Provider (another new [[Artefact>>doc:Glossary.Artefact.WebHome]] in this (% style="color:#e74c3c" %)version(%%)).
12 +* Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] may also be used in [[Data Structure Definitions>>doc:Glossary.Data structure definition.WebHome]], as long as the latter reference the [[Metadata Structure Definition>>doc:Glossary.Metadata structure definition.WebHome]] that specify those Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]].
13 13  
14 14  == 5.2 Identification of the Object(s) to which the Metadata is to be attached ==
15 15  
16 -The following example shows the structure and naming of the [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] and related [[components>>doc:xwiki:Glossary.Component.WebHome]] for creating reference metadata.
16 +The following example shows the structure and naming of the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] and related [[components>>doc:Glossary.Component.WebHome]] for creating reference metadata.
17 17  
18 -The schematic structure of an [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] is shown below.
18 +The schematic structure of an [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] is shown below.
19 19  
20 20  [[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_bf0dc4e4.jpg||height="309" width="550"]]
21 21  
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22 22  (% class="wikigeneratedid" id="HFigure1:SchematicoftheMetadataStructureDefinition" %)
23 23  **Figure 1: Schematic of the Metadata Structure Definition**
24 24  
25 -The [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] contains one Metadata [[Attribute>>doc:xwiki:Glossary.Attribute.WebHome]] Descriptor comprising the Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] that identify the (% style="color:#2ecc71" %)Concepts(%%) for which metadata may be reported in the [[Metadata Set>>doc:xwiki:Glossary.Metadata set.WebHome]]. The [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] comprise the specification of the objects to which metadata can be reported in a [[Metadata Set>>doc:xwiki:Glossary.Metadata set.WebHome]] (Metadata Target(s)).
25 +The [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] contains one Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]] Descriptor comprising the Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] that identify the (% style="color:#e74c3c" %)Concepts(%%) for which metadata may be reported in the [[Metadata Set>>doc:Glossary.Metadata set.WebHome]]. The [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] comprise the specification of the objects to which metadata can be reported in a [[Metadata Set>>doc:Glossary.Metadata set.WebHome]] (Metadata Target(s)).
26 26  
27 -The high-(% style="color:#2ecc71" %)level(%%) view of the [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]], as well as the way the [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] specify the Targets:
27 +The high-(% style="color:#e74c3c" %)level(%%) view of the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]], as well as the way the [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] specify the Targets:
28 28  
29 29  [[image:1747384080138-902.png]]
30 30  
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40 40  (% class="wikigeneratedid" id="HFigure4:SpecificTargetObjectsasspecifiedinaMetadataProvisionAgreement" %)
41 41  **Figure 4: Specific Target Objects as specified in a Metadata Provision Agreement**
42 42  
43 -Note that the [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]] schemas have specific XML elements for each identifiable object type because identifying, for instance, a Maintainable Object has different properties from an Identifiable Object which must also include the agencyId, (% style="color:#2ecc71" %)version(%%), and id of the Maintainable Object in which it resides.
43 +Note that the [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] schemas have specific XML elements for each identifiable object type because identifying, for instance, a Maintainable Object has different properties from an Identifiable Object which must also include the agencyId, (% style="color:#e74c3c" %)version(%%), and id of the Maintainable Object in which it resides.
44 44  
45 45  == 5.3 Metadata Structure Definition ==
46 46  
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50 50  
51 51  **Figure 5: Example MSD showing specification of some Metadata Attributes **
52 52  
53 -This example shows the following [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] of Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]]:
53 +This example shows the following [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] of Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]]:
54 54  
55 -* (% style="color:#2ecc71" %)Contact(%%) – this is presentational; no metadata is expected to be reported at this level
56 -** (% style="color:#2ecc71" %)Contact(%%) Name
55 +* (% style="color:#e74c3c" %)Contact(%%) – this is presentational; no metadata is expected to be reported at this level
56 +** (% style="color:#e74c3c" %)Contact(%%) Name
57 57  ** Address – this is also presentational; up to 3 addresses are allowed
58 58  *** House Number
59 59  
60 60  == 5.4 Metadata Set ==
61 61  
62 -An example of reporting metadata according to the [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] described above, is shown below.
62 +An example of reporting metadata according to the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] described above, is shown below.
63 63  
64 64  [[image:1747384548140-783.png]]
65 65  
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68 68  
69 69  This example shows:
70 70  
71 -1. The reference to the Metadata [[Provision Agreement>>doc:xwiki:Glossary.Provision agreement.WebHome]] and Metadata Target
72 -1. The reported metadata [[attributes>>doc:xwiki:Glossary.Attribute.WebHome]] (AttributeSet)
71 +1. The reference to the Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] and Metadata Target
72 +1. The reported metadata [[attributes>>doc:Glossary.Attribute.WebHome]] (AttributeSet)
73 73  
74 74  == 5.5 Reference Metadata in Data Structure Definition and Dataset ==
75 75  
76 -An important change of [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 3.0 is the ability to reference an [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] within a [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], in order to report any Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] defined in the former to [[Datasets>>doc:xwiki:Glossary.Data set.WebHome]] of the latter.
76 +An important change of [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] 3.0 is the ability to reference an [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] within a [[DSD>>doc:Glossary.Data structure definition.WebHome]], in order to report any Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] defined in the former to [[Datasets>>doc:Glossary.Data set.WebHome]] of the latter.
77 77  
78 78  This is achieved by the following:
79 79  
80 -* In a [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], the user may add a reference to one [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]].
81 -* In the [[Attribute>>doc:xwiki:Glossary.Attribute.WebHome]] Descriptor of the [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], the user may include any Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] defined in the linked [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]]. o For each link to a Metadata [[Attribute>>doc:xwiki:Glossary.Attribute.WebHome]], an [[Attribute Relationship>>doc:xwiki:Glossary.Attribute relationship.WebHome]] may be specified (similarly to that for Data [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]]).
82 -* In any [[Dataset>>doc:xwiki:Glossary.Data set.WebHome]] complying with this [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] may be reported according to the specified [[Attribute Relationship>>doc:xwiki:Glossary.Attribute relationship.WebHome]].
83 -** The [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] of the Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] defined in the [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] must be respected and they are reported in the same way as in a Metadataset, under the (% style="color:#2ecc71" %)level(%%) they are related within the [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], via their [[Attribute Relationship>>doc:xwiki:Glossary.Attribute relationship.WebHome]].
84 -* In Data (% style="color:#2ecc71" %)Constraints(%%), the user is allowed to restrict values for Metadata [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]], in the same way as Data [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] (more on this in section “10 Constraints”).
80 +* In a [[DSD>>doc:Glossary.Data structure definition.WebHome]], the user may add a reference to one [[MSD>>doc:Glossary.Metadata structure definition.WebHome]].
81 +* In the [[Attribute>>doc:Glossary.Attribute.WebHome]] Descriptor of the [[DSD>>doc:Glossary.Data structure definition.WebHome]], the user may include any Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] defined in the linked [[MSD>>doc:Glossary.Metadata structure definition.WebHome]]. o For each link to a Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]], an [[Attribute Relationship>>doc:Glossary.Attribute relationship.WebHome]] may be specified (similarly to that for Data [[Attributes>>doc:Glossary.Attribute.WebHome]]).
82 +* In any [[Dataset>>doc:Glossary.Data set.WebHome]] complying with this [[DSD>>doc:Glossary.Data structure definition.WebHome]], Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] may be reported according to the specified [[Attribute Relationship>>doc:Glossary.Attribute relationship.WebHome]].
83 +** The [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] of the Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] defined in the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] must be respected and they are reported in the same way as in a Metadataset, under the (% style="color:#e74c3c" %)level(%%) they are related within the [[DSD>>doc:Glossary.Data structure definition.WebHome]], via their [[Attribute Relationship>>doc:Glossary.Attribute relationship.WebHome]].
84 +* In Data (% style="color:#e74c3c" %)Constraints(%%), the user is allowed to restrict values for Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]], in the same way as Data [[Attributes>>doc:Glossary.Attribute.WebHome]] (more on this in section “10 Constraints”).
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