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Changes for page 5 Reference Metadata

Last modified by Helena K. on 2026/06/09 20:07
From version 3.1
edited by Helena K.
on 2025/06/11 00:35
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To version 9.1
edited by Helena K.
on 2026/06/09 20:07
Change comment: There is no comment for this version

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1 +Artefact|Attribute|Attribute Relationship|Component|Concept|Constraint|Contact|Contact name|Data Set|Data Structure Definition|Hierarchy|Maintainable Artefact|Metadata Set|Metadata Structure Definition|Metadataflow|Provision Agreement|Reference metadata|SDMX-ML|Statistical Data and Metadata eXchange|Version
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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 2\.1.Metadata structure definition.WebHome]] is reduced in [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 3.0, by means of simplifying its structure, but also in the way referenced [[Artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] are targeted. In fact, the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] is restricted to play the role of a single container, without targeting any specific [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]]. The possible targets of [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] are specified in the [[Metadataflows>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] or Metadata [[Provision Agreements>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] relating to that [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]]. To achieve that, the structure of the [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] has changed in this version of the standard. Moreover, the Metadata [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] [[Artefact>>doc:sdmx:Glossary 2\.1.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(%%)).
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]].
11 +* The [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] becomes a [[Maintainable Artefact>>doc:sdmx:Glossary 2\.1.Maintainable artefact.WebHome]] but maintained by a Metadata Provider (another new [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] in this version).
12 +* Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] may also be used in [[Data Structure Definitions>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], as long as the latter reference the [[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] that specify those Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.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:sdmx:Glossary.Metadata structure definition.WebHome]] and related [[components>>doc:sdmx:Glossary.Component.WebHome]] for creating reference metadata.
16 +The following example shows the structure and naming of the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] and related [[components>>doc:sdmx:Glossary 2\.1.Component.WebHome]] for creating [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]].
17 17  
18 -The schematic structure of an [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] is shown below.
18 +The schematic structure of an [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] is shown below.
19 19  
20 20  [[image:1749590937079-797.jpeg]]
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 2\.1.Metadata structure definition.WebHome]] contains one Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] Descriptor comprising the Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] that identify the [[Concepts>>doc:sdmx:Glossary 2\.1.Concept.WebHome]] for which metadata may be reported in the [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]. The [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] comprise the specification of the objects to which metadata can be reported in a [[Metadata Set>>doc:sdmx:Glossary 2\.1.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 2\.1.Metadata structure definition.WebHome]], as well as the way the [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and Metadata [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] specify the Targets:
27 27  
28 +[[image:1750062059071-852.png]]
28 28  
29 -**Figure 2: The high-level view of the MSD containing one Metadata Attribute Descriptor**
30 +**Figure 2: The high-(% style="color:#e74c3c" %)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 2\.1.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, [[version>>doc:sdmx:Glossary 2\.1.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 -This example shows the following [[hierarchy>>doc:sdmx:Glossary.Hierarchy.WebHome]] of Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]]:
50 +This example shows the following [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] of Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.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 +* [[Contact>>doc:sdmx:Glossary 2\.1.Contact.WebHome]] – this is presentational; no metadata is expected to be reported at this level
53 +* [[Contact Name>>doc:sdmx:Glossary 2\.1.Contact name.WebHome]]
50 50  * Address – this is also presentational; up to 3 addresses are allowed
51 51  ** House Number
52 52  
53 53  == 5.4 Metadata Set ==
54 54  
55 -An example of reporting metadata according to the [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] described above, is shown below.
59 +An example of reporting metadata according to the [[MSD>>doc:sdmx:Glossary 2\.1.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  
60 60  This example shows:
61 61  
62 -1. The reference to the Metadata [[Provision Agreement>>doc:sdmx:Glossary.Provision agreement.WebHome]] and Metadata Target
63 -1. The reported metadata [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]] (AttributeSet)
64 -1. Reference Metadata in [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] and [[Dataset>>doc:sdmx:Glossary.Data set.WebHome]]
67 +1. The reference to the Metadata [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] and Metadata Target
68 +1. The reported metadata [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] (AttributeSet)
69 +1. [[Reference Metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] in [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] and [[Dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]
65 65  
66 -An important change of [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] 3.0 is the ability to reference an [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] within a [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]], in order to report any Metadata [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] defined in the former to [[Datasets>>doc:sdmx:Glossary.Data set.WebHome]] of the latter.
71 +An important change of [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 3.0 is the ability to reference an [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] within a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], in order to report any Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] defined in the former to [[Datasets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] of the latter.
67 67  
68 68  This is achieved by the following:
69 69  
70 -* In a [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]], the user may add a reference to one [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]].
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 -** 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 -* 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(%%)”).
75 +* In a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], the user may add a reference to one [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]].
76 +* In the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] Descriptor of the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], the user may include any Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] defined in the linked [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]].
77 +** For each link to a Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], an [[Attribute Relationship>>doc:sdmx:Glossary 2\.1.Attribute relationship.WebHome]] may be specified (similarly to that for Data [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]).
78 +* In any [[Dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] complying with this [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] may be reported according to the specified [[Attribute Relationship>>doc:sdmx:Glossary 2\.1.Attribute relationship.WebHome]].
79 +** The [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] of the Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] defined in the [[MSD>>doc:sdmx:Glossary 2\.1.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 2\.1.Data structure definition.WebHome]], via their [[Attribute Relationship>>doc:sdmx:Glossary 2\.1.Attribute relationship.WebHome]].
80 +* In Data [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], the user is allowed to restrict values for Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], in the same way as Data [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] (more on this in section “10 [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]”).
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