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Changes for page 5 Reference Metadata

Last modified by Artur on 2025/09/10 11:19
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edited by Helena
on 2025/06/11 00:35
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To version 6.1
edited by Artur
on 2025/09/10 11:19
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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:sdmx:Glossary.Metadata structure definition.WebHome]] is reduced in [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] 3.0, by means of simplifying its structure, but also in the way referenced [[Artefacts>>doc:sdmx:Glossary.Artefact.WebHome]] are targeted. In fact, the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] is restricted to play the role of a single container, without targeting any specific [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]]. The possible targets of [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]] are specified in the [[Metadataflows>>doc:sdmx:Glossary.Metadataflow.WebHome]] or Metadata [[Provision Agreements>>doc:sdmx:Glossary.Provision agreement.WebHome]] relating to that [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]]. To achieve that, the structure of the [[Metadataflow>>doc:sdmx:Glossary.Metadataflow.WebHome]] has changed in this (% style="color:#e74c3c" %)version(%%) of the standard. Moreover, the Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is introduced to include this feature.
7 +The scope of the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] is reduced in [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] 3.0, by means of simplifying its structure, but also in the way referenced [[Artefacts>>doc:sdmx:Glossary.Artefact.WebHome]] are targeted. In fact, the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] is restricted to play the role of a single container, without targeting any specific [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]]. The possible targets of [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]] are specified in the [[Metadataflows>>doc:sdmx:Glossary.Metadataflow.WebHome]] or Metadata [[Provision Agreements>>doc:sdmx:Glossary.Provision agreement.WebHome]] relating to that [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]]. To achieve that, the structure of the [[Metadataflow>>doc:sdmx:Glossary.Metadataflow.WebHome]] has changed in this version of the standard. Moreover, the Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is introduced to include this feature.
8 8  
9 -Two more changes, introduced in this (% style="color:#e74c3c" %)version(%%), are the following:
9 +Two more changes, introduced in this version, are the following:
10 10  
11 -* The [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]] becomes a [[Maintainable Artefact>>doc:sdmx:Glossary.Maintainable artefact.WebHome]] but maintained by a Metadata Provider (another new [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] in this (% style="color:#e74c3c" %)version(%%)).
11 +* The [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]] becomes a [[Maintainable Artefact>>doc:sdmx:Glossary.Maintainable artefact.WebHome]] but maintained by a Metadata Provider (another new [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] in this version).
12 12  * Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] may also be used in [[Data Structure Definitions>>doc:sdmx:Glossary.Data structure definition.WebHome]], as long as the latter reference the [[Metadata Structure Definition>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] that specify those Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]].
13 13  
14 14  == 5.2 Identification of the Object(s) to which the Metadata is to be attached ==
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21 21  
22 22  **Figure 1: Schematic of the Metadata Structure Definition**
23 23  
24 -The [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] contains one Metadata [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Descriptor comprising the Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] that identify the (% style="color:#e74c3c" %)Concepts(%%) for which metadata may be reported in the [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]]. The [[Metadataflow>>doc:sdmx:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] comprise the specification of the objects to which metadata can be reported in a [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]] (Metadata Target(s)).
24 +The [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] contains one Metadata [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Descriptor comprising the Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] that identify the (% style="color:#e74c3c" %)[[Concepts>>doc:sdmx:Glossary.Concept.WebHome]](%%) for which metadata may be reported in the [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]]. The [[Metadataflow>>doc:sdmx:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] comprise the specification of the objects to which metadata can be reported in a [[Metadata Set>>doc:sdmx:Glossary.Metadata set.WebHome]] (Metadata Target(s)).
25 25  
26 -The high-(% style="color:#e74c3c" %)level(%%) view of the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]], as well as the way the [[Metadataflow>>doc:sdmx:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] specify the Targets:
26 +The high-level view of the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]], as well as the way the [[Metadataflow>>doc:sdmx:Glossary.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] specify the Targets:
27 27  
28 +[[image:1750062059071-852.png]]
28 28  
29 29  **Figure 2: The high-level view of the MSD containing one Metadata Attribute Descriptor**
30 30  
32 +[[image:1750062042204-714.png]]
31 31  
32 32  **Figure 3: Wildcarded Target Objects as specified in a Metadataflow**
33 33  
36 +[[image:1750062017456-979.png]]
34 34  
35 35  **Figure 4: Specific Target Objects as specified in a Metadata Provision Agreement**
36 36  
37 -Note that the [[SDMX-ML>>doc:sdmx: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.
40 +Note that the [[SDMX-ML>>doc:sdmx: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 agency, Id, (% style="color:#e74c3c" %)[[version>>doc:sdmx:Glossary.Version.WebHome]](%%), and id of the Maintainable Object in which it resides.
38 38  
39 39  == 5.3 Metadata Structure Definition ==
40 40  
41 41  An example is shown below.
42 42  
46 +[[image:1750061909163-858.png]]
43 43  
44 44  **Figure 5: Example MSD showing specification of some Metadata Attributes**
45 45  
46 46  This example shows the following [[hierarchy>>doc:sdmx:Glossary.Hierarchy.WebHome]] of Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]]:
47 47  
48 -* (% style="color:#e74c3c" %)Contact(%%) – this is presentational; no metadata is expected to be reported at this level
49 -* (% style="color:#e74c3c" %)Contact(%%) Name
52 +* (% style="color:#e74c3c" %)[[Contact>>doc:sdmx:Glossary.Contact.WebHome]](%%) – this is presentational; no metadata is expected to be reported at this level
53 +* Contact Name
50 50  * Address – this is also presentational; up to 3 addresses are allowed
51 51  ** House Number
52 52  
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54 54  
55 55  An example of reporting metadata according to the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] described above, is shown below.
56 56  
61 +[[image:1750062180056-182.png]]
57 57  
58 58  **Figure 6: Example Metadata Set**
59 59  
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71 71  * In the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Descriptor of the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]], the user may include any Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] defined in the linked [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]].
72 72  ** For each link to a Metadata [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], an [[Attribute Relationship>>doc:sdmx:Glossary.Attribute relationship.WebHome]] may be specified (similarly to that for Data [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]]).
73 73  * In any [[Dataset>>doc:sdmx:Glossary.Data set.WebHome]] complying with this [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]], Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] may be reported according to the specified [[Attribute Relationship>>doc:sdmx:Glossary.Attribute relationship.WebHome]].
74 -** The [[hierarchy>>doc:sdmx:Glossary.Hierarchy.WebHome]] of the Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] defined in the [[MSD>>doc:sdmx: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:sdmx:Glossary.Data structure definition.WebHome]], via their [[Attribute Relationship>>doc:sdmx:Glossary.Attribute relationship.WebHome]].
75 -* In Data (% style="color:#e74c3c" %)Constraints(%%), the user is allowed to restrict values for Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]], in the same way as Data [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] (more on this in section “10 (% style="color:#e74c3c" %)Constraints(%%)”).
79 +** The [[hierarchy>>doc:sdmx:Glossary.Hierarchy.WebHome]] of the Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] defined in the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] must be respected and they are reported in the same way as in a Metadataset, under the level they are related within the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]], via their [[Attribute Relationship>>doc:sdmx:Glossary.Attribute relationship.WebHome]].
80 +* In Data (% style="color:#e74c3c" %)[[Constraints>>doc:sdmx:Glossary.Constraint.WebHome]](%%), the user is allowed to restrict values for Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]], in the same way as Data [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] (more on this in section “10 (% style="color:#e74c3c" %)[[Constraints>>doc:sdmx:Glossary.Constraint.WebHome]](%%)”).
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