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Last modified by Helena on 2025/09/10 11:19
From version 2.11
edited by Helena
on 2025/05/21 15:04
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To version 2.13
edited by Helena
on 2025/05/21 15:07
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1077 1077  
1078 1078  ==== 7.1.3.3 Structure Usage Model ====
1079 1079  
1080 +[[image:1747829078194-749.png]]
1081 +
1080 1080  **Figure 10: SDMX-IM of links from Structure Usage to Category**
1081 1081  
1082 1082  In addition to the maintenance of the Dataflow Definition and the Metadataflow Definition the following links must be maintained in the registry:
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1103 1103  
1104 1104  An organisation which publishes statistical data or reference metadata and wishes to make it available to an SDMX enabled community is called a Data Provider. In terms of the SDMX Information Model, the Data Provider is maintained in a Data Provider Scheme.
1105 1105  
1108 +[[image:1747829109466-595.png]]
1106 1106  
1107 1107  **Figure 11: SDMX-IM of the Data Provider**
1108 1108  
1109 -
1110 1110  Note that the Data Provider does not inherit the hierarchy association. The diagram below shows a logical schematic of the data model classes required to maintain provision agreements
1111 1111  
1112 1112  [[image:1747824123019-181.jpeg]]
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1115 1115  
1116 1116  The diagram below is a logical representation of the data required in order to maintain Provision Agreements.
1117 1117  
1120 +[[image:1747829139951-378.png]]
1118 1118  
1119 -==== Figure 13: Logical class diagram of the information contained in the Provision Agreement ====
1122 +(% class="wikigeneratedid" id="HFigure13:LogicalclassdiagramoftheinformationcontainedintheProvisionAgreement" %)
1123 +**Figure 13: Logical class diagram of the information contained in the Provision Agreement**
1120 1120  
1121 1121  A Provision Agreement is structural metadata. Each Provision Agreement must reference a Data Provider and a Dataflow or Metadataflow Definition. The Data Provider and the Dataflow/Metadataflow Definition must exist already in order to set up a Provision Agreement.
1122 1122  
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1144 1144  
1145 1145  === 7.3.3 Data and Metadata Constraints: Model ===
1146 1146  
1151 +[[image:1747829204737-370.png]]
1147 1147  
1153 +**Figure 15: Logical class diagram showing inheritance between and reference to constrainable artifacts**
1148 1148  
1149 -==== Figure 15: Logical class diagram showing inheritance between and reference to constrainable artifacts ====
1155 +The class diagram above shows that DataProvider, DataflowDefinition, MetadataflowDefinition, ProvisionAgreement, DataStructureDefinition, MetadataStructureDefinition, SimpleDatasource and QueryDatasource are all concrete sub-classes of ConstrainableArtefact and can therefore have Constraints specified. Note that the actual Constraint as submitted is associated to the reference classes which inherit from ConstrainableRef: these are used to refer to the classes to which the Constraint applies.
1150 1150  
1151 -The class diagram above shows that DataProvider, DataflowDefinition, MetadataflowDefinition, ProvisionAgreement, DataStructureDefinition, MetadataStructureDefinition, SimpleDatasource and QueryDatasource are all concrete sub-classes of ConstrainableArtefact and can therefore have Constraints specified. Note that the actual Constraint as submitted is associated to the reference classes which inherit from ConstrainableRef: these are used to refer to the classes to which the Constraint applies.
1152 -
1153 -
1154 1154  The content of the Constraint can be found in the SDMX Information Model document.
1155 1155  
1156 1156  == 7.4 Data and Metadata Registration ==
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