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Last modified by Elena on 2025/09/10 11:19
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edited by Helena
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1 -=== 5.1 Introduction ===
1 +{{box title="**Contents**"}}
2 +{{toc/}}
3 +{{/box}}
2 2  
5 +== 5.1 Introduction ==
6 +
3 3  The DataStructureDefiniton is the class name for a structure definition for data. Some organisations know this type of definition as a “Key Family” and so the two names are synonymous. The term Data Structure Definition (also referred to as DSD) is used in this specification.
4 4  
5 5  Many of the constructs in this layer of the model inherit from the SDMX Base Layer. Therefore, it is necessary to study both the inheritance and the relationship diagrams to understand the functionality of individual packages. In simple sub models these are shown in the same diagram but are omitted from the more complex sub models for the sake of clarity. In these cases, the inheritance diagram below shows the full inheritance tree for the classes concerned with data structure definitions.
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18 18  
19 19  Maintenance – //MaintainableArtefact//
20 20  
21 -=== 5.2 Inheritance View ===
25 +== 5.2 Inheritance View ==
22 22  
23 -==== 5.2.1 Class Diagram ====
27 +=== 5.2.1 Class Diagram ===
24 24  
25 25  [[image:1749246368774-202.jpeg]]
26 26  
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179 179  //StructureUsage//
180 180  )))|Abstract concept (i.e., the structure without any data) of a flow of data that providers will provide for different reference periods.
181 181  | |/structure|Associates a Dataflow to the Data Structure Definition.
182 -| |dimensionConstraint|A list of Dimensions which the Dataflow uses. This is only required when the referenced DataStructureDefinition has the evolvingStructure property set to true and when the association to the DataStructureDefinition in on the latest minor version[[^^~[1~]^^>>path:#_ftn1]].
186 +| |dimensionConstraint|A list of Dimensions which the Dataflow uses. This is only required when the referenced DataStructureDefinition has the evolvingStructure property set to true and when the association to the DataStructureDefinition in on the latest minor version[[(% class="wikiinternallink wikiinternallink" %)^^~[1~]^^>>path:#_ftn1]](%%).
183 183  |DataStructureDefiniti on| |A collection of metadata concepts, their structure and usage when used to collect or disseminate data.
184 184  | |/grouping|An association to a set of metadata concepts that have an identified structural role in a Data Structure Definition.
185 185  | |evolvingStructure|An optional boolean property, defaulting to false. When true the DataStructureDefinition may have new Dimensions added without having to change its major version number.
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200 200  
201 201  //ComponentList//
202 202  )))|A set metadata concepts that define the Attributes of a Data Structure Definition.
203 -| |/////components|An association to a Data Attribute component.
207 +| |/components|An association to a Data Attribute component.
204 204  |MeasureDescriptor|(((
205 205  Inherits from
206 206  
SUZ.Methodology.Code.MethodologyClass[0]
index
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1 +6