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Last modified by Helena on 2025/09/10 11:19
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1 -Methodology.SDMX 3\.0 Standards\. Section 6\. Technical Notes.WebHome
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1 -xwiki:XWiki.elenasemanticproorg
1 +xwiki:XWiki.helena
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1 -Agency scheme|Hierarchy|Maintenance agency|Reference metadata|Statistical data and metadata exchange|Structural metadata
Content
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1 -All [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] in [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] is owned and maintained by a [[maintenance agency>>doc:Glossary.Maintenance agency.WebHome]] (Agency identified by agencyID in the schemas). Similarly, all [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] (i.e., MetadataSets) is owned and maintained by a metadata provider organisation (MetadataProvider identified by metadataProviderID in the schemas). It is vital to the integrity of the [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] that there are no conflicts in agencyID and metadataProviderID. In order to achieve this, [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] adopts the following rules:
1 +All [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] in [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] is owned and maintained by a [[maintenance agency>>doc:xwiki:Glossary.Maintenance agency.WebHome]] (Agency identified by agencyID in the schemas). Similarly, all [[reference metadata>>doc:xwiki:Glossary.Reference metadata.WebHome]] (i.e., MetadataSets) is owned and maintained by a metadata provider organisation (MetadataProvider identified by metadataProviderID in the schemas). It is vital to the integrity of the [[structural metadata>>doc:xwiki:Glossary.Structural metadata.WebHome]] that there are no conflicts in agencyID and metadataProviderID. In order to achieve this, [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] adopts the following rules:
2 2  
3 3  1. Agencies are maintained in an AgencyScheme (which is a sub class of //OrganisationScheme//); Metadata Providers are maintained in a MetadataProviderScheme.
4 -1. The [[maintenance agency>>doc:Glossary.Maintenance agency.WebHome]] of the Agency/Metadata Provider Scheme must also be declared in a (different) AgencyScheme.
5 -1. The "top-level agency is [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] and this [[agency scheme>>doc:Glossary.Agency scheme.WebHome]] is maintained by [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]].
6 -1. Agencies registered in the top-level scheme can themselves maintain a single AgencyScheme and a single MetadataProviderScheme. [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] is an agency in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] AgencyScheme. Agencies in any AgencyScheme can themselves maintain a single AgencyScheme and so on.
7 -1. The AgencyScheme and MetadataProvideScheme cannot be versioned and thus have a fixed [[version>>doc:Glossary.Version.WebHome]] set to ‘1.0’.
4 +1. The [[maintenance agency>>doc:xwiki:Glossary.Maintenance agency.WebHome]] of the Agency/Metadata Provider Scheme must also be declared in a (different) AgencyScheme.
5 +1. The "top-level agency is [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] and this [[agency scheme>>doc:xwiki:Glossary.Agency scheme.WebHome]] is maintained by [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]].
6 +1. Agencies registered in the top-level scheme can themselves maintain a single AgencyScheme and a single MetadataProviderScheme. [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] is an agency in the [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] AgencyScheme. Agencies in any AgencyScheme can themselves maintain a single AgencyScheme and so on.
7 +1. The AgencyScheme and MetadataProvideScheme cannot be versioned and thus have a fixed (% style="color:#2ecc71" %)version(%%) set to ‘1.0’.
8 8  1. There can be only one AgencyScheme maintained by any one Agency. It has a fixed Id of 'AGENCIES'. Similarly, only one MetadataProvideScheme is maintained by one Agency and has a fixed id of 'METADATA_PROVIDERS'.
9 -1. The format of the agency identifier is agencyId.agencyID etc. The top-level agency in this identification mechanism is the agency registered in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] [[agency scheme>>doc:Glossary.Agency scheme.WebHome]]. In other words, [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] is not a part of the hierarchical ID structure for agencies. [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] is, itself, a [[maintenance agency>>doc:Glossary.Maintenance agency.WebHome]].
9 +1. The format of the agency identifier is agencyId.agencyID etc. The top-level agency in this identification mechanism is the agency registered in the [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] [[agency scheme>>doc:xwiki:Glossary.Agency scheme.WebHome]]. In other words, [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] is not a part of the hierarchical ID structure for agencies. [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] is, itself, a [[maintenance agency>>doc:xwiki:Glossary.Maintenance agency.WebHome]].
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11 11  This supports a hierarchical structure of agencyID.
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16 16  
17 17  **Figure 16: Example of Hierarchic Structure of Agencies**
18 18  
19 -Each agency is identified by its full [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] excluding SDMX.
19 +Each agency is identified by its full [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] excluding SDMX.
20 20  
21 21  The XML representing this structure is shown below.
22 22  
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30 30  
31 31  **Figure 18: Example Showing Use of Agency Identifiers**
32 32  
33 -Each of these [[maintenance agencies>>doc:Glossary.Maintenance agency.WebHome]] has a Codelist with an identical id 'CL_FREQ'.
33 +Each of these [[maintenance agencies>>doc:xwiki:Glossary.Maintenance agency.WebHome]] has a Codelist with an identical id 'CL_FREQ'.
34 34  
35 35  However, each is uniquely identified by means of the hierarchic agency structure.
SUZ.Methodology.Code.MethodologyClass[0]
index
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1 -8