Wiki source code of 5 Data Structure Definition and Dataset

Version 23.8 by Helena K. on 2026/06/04 21:25

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3.2	5	== 5.1 Introduction ==
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23.2	7	The DataStructureDefiniton is the class [[name>>doc:IMElements.name.WebHome]] for a [[structure>>doc:IMElements.structure.WebHome]] definition for data. Some organisations know this [[type>>doc:IMElements.type.WebHome]] of definition as a “[[Key>>doc:IMElements.AnnotableArtefact.Key.WebHome]] Family” and so the two names are synonymous. The term [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] (also referred to as [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]) is used in this specification.
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23.2	9	Many of the constructs in this layer of the model inherit from the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 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>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
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23.2	11	There are very few additional classes in this sub model other than those shown in the inheritance diagram below. In other words, the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base gives most of the [[structure>>doc:IMElements.structure.WebHome]] of this sub model both in terms of associations and in terms of [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]. The relationship diagrams shown in this section show clearly when these associations are inherited from the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base (see the Appendix “A Short Guide to UML in the [[SDMX Information Model>>doc:sdmx:Glossary 2\.1.SDMX Information Model.WebHome]]” to see the diagrammatic notation used to depict this).
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23.2	13	The actual [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base construct from which the concrete classes inherit depends upon the requirements of the class for:
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23.2	15	[[Annotation>>doc:IMElements.Annotation.WebHome]] – //[[AnnotableArtefact>>doc:IMElements.AnnotableArtefact.WebHome]]//
	16	Identification – //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//
	17	Naming – //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//
	18	Versioning – //[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//
	19	Maintenance – //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
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3.2	21	== 5.2 Inheritance View ==
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3.2	23	=== 5.2.1 Class Diagram ===
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15.2	25	[[image:image53.png]]
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1.1	27	Figure 27 Class inheritance in the Data Structure Definition and Data Set Packages
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3.3	29	=== 5.2.2 Explanation of the Diagram ===
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3.3	31	==== 5.2.2.1 Narrative ====
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23.2	33	Those classes in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metamodel which require annotations inherit from //[[AnnotableArtefact>>doc:IMElements.AnnotableArtefact.WebHome]]//. These are:
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23.2	35	//[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]
	36	[[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]
	37	[[Key>>doc:IMElements.AnnotableArtefact.Key.WebHome]]// (and therefore //[[SeriesKey>>doc:IMElements.AnnotableArtefact.Key.SeriesKey.WebHome]]// and //[[GroupKey>>doc:IMElements.AnnotableArtefact.Key.GroupKey.WebHome]]//)
	38	//[[Observation>>doc:IMElements.AnnotableArtefact.Observation.WebHome]]//
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23.2	40	Those classes in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metamodel which require annotations and global identity are derived from //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//. These are:
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23.2	42	//[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]
	43	[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]
	44	[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
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23.2	46	Those classes in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metamodel which require annotations, global identity, multilingual [[name>>doc:IMElements.name.WebHome]] and multilingual [[description>>doc:IMElements.description.WebHome]] are derived from //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//. These are:
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23.2	48	//[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]
	49	[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//
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23.2	51	The classes in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metamodel which require annotations, global identity, multilingual [[name>>doc:IMElements.name.WebHome]] and multilingual [[description>>doc:IMElements.description.WebHome]], and versioning are derived from //[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//. These are:
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23.2	53	//[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
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23.2	55	Abstract classes which represent information that is maintained by [[Maintenance Agencies>>doc:sdmx:Glossary 2\.1.Maintenance agency.WebHome]] all inherit from //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//, they also inherit all the features of a //[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//, and are:
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23.2	57	//[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]
	58	[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]
	59	[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//
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	61	All the above classes are abstract. The key to understanding the class diagrams presented in this section are the concrete classes that inherit from these abstract classes.
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23.2	63	Those concrete classes in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] and [[Dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] packages of the metamodel which require to be maintained by Agencies all inherit (via other abstract classes) from //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//, these are:
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23.2	65	[[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]]
	66	[[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]
	67	The component structures that are lists of lists, inherit directly from //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]//. A //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// contains several lists of [[components>>doc:IMElements.components.WebHome]]. The concrete class that inherits from //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// is:
	68	[[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]
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23.2	70	A [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] contains a list of [[dimensions>>doc:IMElements.dimensions.WebHome]], a list of [[measures>>doc:IMElements.measures.WebHome]] and a list of [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
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23.2	72	The concrete classes which inherit from //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// and are subcomponents of the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] are:
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23.2	74	[[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]] – content is [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] and [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
	75	DimensionGroupDescriptor – content is an association to [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
	76	[[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]] – content is [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]]
	77	[[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]] – content is [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] and an association to [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]]
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23.2	79	The classes that inherit from //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// are:
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23.2	81	[[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]]
	82	//[[DimensionComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.WebHome]]// and thereby its sub classes of [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] and [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
	83	//[[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]// and thereby its sub classes of [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] and [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]]
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23.2	85	The concrete classes identified above are the majority of the classes required to define the metamodel for the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]. The diagrams and explanations in the rest of this section show how these concrete classes are related in order to support the functionality required.
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3.3	87	== 5.3 Data Structure Definition – Relationship View ==
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3.3	89	=== 5.3.1 Class Diagram ===
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15.3	91	[[image:image54.png]]
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1.1	93	Figure 28 Relationship class diagram of the Data Structure Definition excluding representation
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3.3	95	=== 5.3.2 Explanation of the Diagrams ===
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3.3	97	==== 5.3.2.1 Narrative ====
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23.2	99	A [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] defines the Dimensions, [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]], DataAttributes, and Measures, and associated Representations, that comprise the valid [[structure>>doc:IMElements.structure.WebHome]] of data and related [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] that are contained in a [[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], which is defined by a [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]]. In addition, a [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] may be related to one [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]], in order to use the latter’s MetadataAttributes, by relating them to other //Components// within the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], as explained below.
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23.2	101	The [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]] may also have additional [[metadata>>doc:IMElements.metadata.WebHome]] attached that define qualitative information and [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] on the use of the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] such as the subset of Codes used in a [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] (this is covered later in this document – see sections “[[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]” and “Data Provisioning”). Each [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]] has a maximum of one [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] specified which defines the [[structure>>doc:IMElements.structure.WebHome]] of any [[DataSets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] to be reported/disseminated. A [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]] may optionally define which Dimensions it uses, by defining a [[DimensionConstraint>>doc:IMElements.DimensionConstraint.WebHome]] (this is a mandatory requirement if the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] sets its’ [[evolvingStructure>>doc:IMElements.evolvingStructure.WebHome]] property to ‘true’ and is sematically referenced by the [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]]).
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23.2	103	There are two types of [[dimensions>>doc:IMElements.dimensions.WebHome]] each having a common association to [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]]:
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23.2	105	* [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]]
	106	* [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
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23.2	108	Note that [[DimensionComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.WebHome]] can be any or all its sub classes i.e., [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]].
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23.3	110	The //[[DimensionComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.WebHome]]//, [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]], [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] and [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] link to the [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] that defines its [[name>>doc:IMElements.name.WebHome]] and semantic (/conceptIdentity association to [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]]). The [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]], [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] (but not [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]) and [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] can optionally have a +conceptRole association with a [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] that identifies its [[role>>doc:IMElements.role.WebHome]] in the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]], or one of the standard pre-defined roles, i.e., those published in "GUIDELINES FOR SDMX CONCEPT ROLES" by the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] SWG. The use of these roles is to enable applications to process the data in a meaningful way (e.g., relating a dimension [[value>>doc:IMElements.value.WebHome]] to a mapping vector). It is expected, beyond the standard roles published by the SWG, that communities (such as the official statistics community) will harmonise such roles within their community so that data can be exchanged and shared in a meaningful way within that community.
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23.3	112	The valid values for a //[[DimensionComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.WebHome]]//, [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]], [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] or [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]], when used in this [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]], are defined by the [[Representation>>doc:IMElements.Representation.WebHome]]. This [[Representation>>doc:IMElements.Representation.WebHome]] is taken from the [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] definition ([[coreRepresentation>>doc:IMElements.coreRepresentation.WebHome]]) unless it is overridden in this [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] ([[localRepresentation>>doc:IMElements.localRepresentation.WebHome]]) – see Figure 28. Note also that [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]] is constrained to specific FacetValueTypes. Moreover, the Representations of MetadataAttributes are specified in the corresponding [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]], linked by the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]].
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23.3	114	There will always be a [[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]] [[grouping>>doc:IMElements.grouping.WebHome]] that identifies all of the [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] comprising the full key. Together the Dimensions specify the key of an [[Observation>>doc:IMElements.AnnotableArtefact.Observation.WebHome]].
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23.3	116	The //[[DimensionComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.WebHome]]// can optionally be grouped by multiple GroupDimensionDescriptors each of which identifies the group of Dimensions that can form a partial key. The [[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]] must be identified ([[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]].id) and this is used in the [[GroupKey>>doc:IMElements.AnnotableArtefact.Key.GroupKey.WebHome]] of the [[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] to declare which DataAttributes or MetadataAttributes are reported at this group level in the [[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]].
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23.3	118	There can be a maximum of one [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]] specified in the [[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]]. The [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]] is used to specify the [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] used to convey the [[time period>>doc:sdmx:Glossary 2\.1.Time period.WebHome]] of the observation in a [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]. The [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]] must contain a valid representation of time and cannot be coded.
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23.3	120	There can be one or more Measures under the [[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]]. Measures represent the observable phenomena. Each [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] may have a valid representation, a [[maxOccurs>>doc:IMElements.maxOccurs.WebHome]] [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] limiting the maximum number of values per [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] (which may be set to 'unbounded' for unlimited occurrences), as well as a [[minOccurs>>doc:IMElements.minOccurs.WebHome]] [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], indicating the minimum required number of values, when the [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] is reported. If [[minOccurs>>doc:IMElements.minOccurs.WebHome]] or [[maxOccurs>>doc:IMElements.maxOccurs.WebHome]] are omitted (they both default to ‘1’), the [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] is considered to take a single [[value>>doc:IMElements.value.WebHome]]; otherwise, it is an array. Moreover, the usage [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] indicates whether a [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] must be reported or not, by the corresponding values: mandatory or optional.
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23.3	122	The [[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]] may contain one or more //[[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]//s, i.e., at least one [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] definition or one [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] reference.
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23.3	124	The [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] defines a characteristic of data that are collected or disseminated and is grouped in the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] by a single [[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]]. The [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] can be indicated if it must be reported or not, by the corresponding [[value>>doc:IMElements.value.WebHome]] of the usage [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]: i.e., mandatory or optional. The property [[minOccurs>>doc:IMElements.minOccurs.WebHome]] specifies the minimum number of array values to be included when the [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] is reported. Moreover, a [[maxOccurs>>doc:IMElements.maxOccurs.WebHome]] [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] indicates whether the [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] may need to report more than one values, i.e., an array of values. The [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] may play a specific [[role>>doc:IMElements.role.WebHome]] in the [[structure>>doc:IMElements.structure.WebHome]] and this is specified by the +[[role>>doc:IMElements.role.WebHome]] association to the [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] that identifies its [[role>>doc:IMElements.role.WebHome]].
1.1	125
23.3	126	The [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] defines [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] that may be collected or disseminated and is grouped together with [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] under the [[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]].
1.1	127
23.3	128	A [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] or a [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] (i.e., an //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]//) is specified as being +[[relatedTo>>doc:IMElements.relatedTo.WebHome]] an [[AttributeRelationship>>doc:IMElements.AttributeRelationship.WebHome]], which defines the constructs to which the //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]// is to be reported within a //[[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]//. An //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]// can be specified as being related to one of the following [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]]:
1.1	129
23.3	130	* All data within the [[dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] (DataflowRelationship) – this is equivalent to attaching an [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to all data within the [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]].
	131	* [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] or set of Dimensions ([[DimensionRelationship>>doc:IMElements.AttributeRelationship.DimensionRelationship.WebHome]])
	132	* Set of Dimensions specified by a [[GroupKey>>doc:IMElements.AnnotableArtefact.Key.GroupKey.WebHome]] ([[GroupRelationship>>doc:IMElements.AttributeRelationship.GroupRelationship.WebHome]] – this is retained for compatibility reasons – or +[[groupKey>>doc:IMElements.groupKey.WebHome]] of the [[DimensionRelationship>>doc:IMElements.AttributeRelationship.DimensionRelationship.WebHome]])
	133	* [[Observation>>doc:IMElements.AnnotableArtefact.Observation.WebHome]] ([[ObservationRelationship>>doc:IMElements.AttributeRelationship.ObservationRelationship.WebHome]])
	134	* In addition to the positioning of an //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]// within a //[[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]//, another relationship indicates the [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]](s) for which the //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]// is reported. Regardless of the position of the //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]// within the //[[DataSet>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]//, the //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]// may concern one, more than one, or all Measures included in the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. This is expressed using the [[MeasureRelationship>>doc:IMElements.AttributeRelationship.MeasureRelationship.WebHome]] class, which relates a [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] to one or more Measures. Lack of the [[MeasureRelationship>>doc:IMElements.AttributeRelationship.MeasureRelationship.WebHome]] defaults to a relationship to all Measures.
1.1	135
15.4	136	[[image:image55.png]]
	137
1.1	138	Figure 29: Attribute Attachment Defined in the Data Structure Definition
	139
23.4	140	The following table details the possible relationships a [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] may specify. Note that these relationships are mutually exclusive, and therefore only one of the following is possible.
1.1	141
3.5	142	(% style="width:1142.83px" %)
	143	\|Relationship\|(% style="width:537px" %)Meaning\|(% style="width:434px" %)Location in Data Set at which the Attribute is reported
23.4	144	\|DataflowRelationship\|(% style="width:537px" %)The [[value>>doc:IMElements.value.WebHome]] of the [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is fixed for all data contained in the [[dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]. The [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] [[value>>doc:IMElements.value.WebHome]] applies to all data defined by the underlying [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]].\|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is reported at the [[Dataset>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] level.
	145	\|[[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] (1..n)\|(% style="width:537px" %)The [[value>>doc:IMElements.value.WebHome]] of the [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] will vary with the [[value>>doc:IMElements.value.WebHome]](s) of the referenced [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]](s). In this case, Group(s) to which the [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] should be attached may optionally be specified.\|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is reported at the lowest level of the [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] to which the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is related, otherwise at the level of the Group if Attachment Group(s) is specified.
	146	\|Group\|(% style="width:537px" %)The [[value>>doc:IMElements.value.WebHome]] of the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] varies with combination of values for all of the Dimensions contained in the Group. This is added as a convenience to listing all Dimensions and the attachment Group, but should only be used when the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] [[value>>doc:IMElements.value.WebHome]] varies based on all Group [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] values.\|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is reported at the level of Group.
	147	\|[[Observation>>doc:IMElements.AnnotableArtefact.Observation.WebHome]]\|(% style="width:537px" %)The [[value>>doc:IMElements.value.WebHome]] of the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] varies with the observed [[value>>doc:IMElements.value.WebHome]].\|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is reported at the level of [[Observation>>doc:IMElements.AnnotableArtefact.Observation.WebHome]].
1.1	148
15.4	149	[[image:image56.png]]
	150
1.1	151	Figure 30: Representation of DSD Components
	152
23.5	153	Each of [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]], [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]], [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] and [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] can have a [[Representation>>doc:IMElements.Representation.WebHome]] specified (using the [[localRepresentation>>doc:IMElements.localRepresentation.WebHome]] association). If this is not specified in the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] then the representation specified for (% style="color:#e74c3c" %)[[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]](%%) ([[coreRepresentation>>doc:IMElements.coreRepresentation.WebHome]]) is used. [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]], and [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] may be also represented by multilingual [[text>>doc:IMElements.text.WebHome]] (as seen in the [[DataSet>>doc:Glossary.Data set.WebHome]] diagram further down). An exception is the [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]], where its [[Representation>>doc:IMElements.Representation.WebHome]] is specified in the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]].
1.1	154
23.5	155	A [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] can be extended to form a derived [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]. This is supported in the StructureMap.
1.1	156
3.3	157	==== 5.3.2.2 Definitions ====
1.1	158
5.7	159	(% style="width:981.835px" %)
	160	\|(% style="width:204px" %)Class\|(% style="width:236px" %)Feature\|(% style="width:538px" %)Description
23.7	161	\|(% style="width:204px" %)StructureUsage\|(% style="width:236px" %) \|(% style="width:538px" %)See “[[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base”.
23.5	162	\|(% style="width:204px" %)[[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]]\|(% style="width:236px" %)(((
1.1	163	Inherits from
	164
23.7	165	//StructureUsage//
23.5	166	)))\|(% style="width:538px" %)Abstract concept (i.e., the structure without any data) of a flow of data that providers will provide for different [[reference periods>>doc:sdmx:Glossary 2\.1.Reference period.WebHome]].
	167	\|(% style="width:204px" %) \|(% style="width:236px" %)/structure\|(% style="width:538px" %)Associates a Dataflow to the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
	168	\|(% style="width:204px" %) \|(% style="width:236px" %)dimensionConstraint\|(% style="width:538px" %)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{{footnote}}Referencing the latest minor version of the Data Structure is achieved by the reference including the plus operator on the minor version to indicate it links to the latest stable version, for example 2.0+.0 will resolve to the highest version 2.x.y.{{/footnote}}.
23.7	169	\|(% style="width:204px" %)DataStructureDefinition\|(% style="width:236px" %) \|(% style="width:538px" %)A collection of metadata concepts, their structure and usage when used to collect or disseminate data.
23.5	170	\|(% style="width:204px" %) \|(% style="width:236px" %)/grouping\|(% style="width:538px" %)An association to a set of metadata concepts that have an identified structural role in a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
23.6	171	\|(% style="width:204px" %) \|(% style="width:236px" %)evolvingStructure\|(% style="width:538px" %)An optional boolean property, defaulting to false. When true the DataStructureDefinition may have new Dimensions added without having to change its major version number.
23.7	172	\|(% style="width:204px" %)GroupDimensionDescriptor\|(% style="width:236px" %)(((
1.1	173	Inherits from
23.7	174	//ComponentList//
23.5	175	)))\|(% style="width:538px" %)A set of metadata concepts that define a partial key derived from the Dimension Descriptor in a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
23.6	176	\|(% style="width:204px" %) \|(% style="width:236px" %)/components\|(% style="width:538px" %)An association to the Dimension components that comprise the group.
23.7	177	\|(% style="width:204px" %)DimensionDescriptor\|(% style="width:236px" %)(((
1.1	178	Inherits from
23.7	179	//ComponentList//
23.5	180	)))\|(% style="width:538px" %)An ordered set of metadata concepts that, combined, classify a statistical [[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]], and whose values, when combined (the key) in an instance such as a [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], uniquely identify a specific observation.
23.6	181	\|(% style="width:204px" %) \|(% style="width:236px" %)/components\|(% style="width:538px" %)An association to the Dimension and Time Dimension comprising the Key Descriptor.
23.7	182	\|(% style="width:204px" %)AttributeDescriptor\|(% style="width:236px" %)(((
1.1	183	Inherits from
23.7	184	//ComponentList//
23.5	185	)))\|(% style="width:538px" %)A set metadata concepts that define the [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] of a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
23.6	186	\|(% style="width:204px" %) \|(% style="width:236px" %)/components\|(% style="width:538px" %)An association to a Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] component.
23.5	187	\|(% style="width:204px" %)[[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]]\|(% style="width:236px" %)(((
1.1	188	Inherits from
23.8	189	//ComponentList//
23.5	190	)))\|(% style="width:538px" %)A metadata concept that defines the Measures of a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
23.7	191	\|(% style="width:204px" %) \|(% style="width:236px" %)/components\|(% style="width:538px" %)An association to a Measure component.
	192	\|(% style="width:204px" %)//DimensionComponent//\|(% style="width:236px" %)(((
1.1	193	Inherits from
23.5	194	//[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
1.1	195	Sub class
23.5	196	[[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]]
23.7	197	TimeDimension
23.5	198	)))\|(% style="width:538px" %)An abstract class representing any Component that can be used for identifying observations.
	199	\|(% style="width:211px" %) \|(% style="width:235px" %)[[Order>>doc:IMElements.Order.WebHome]]\|(% style="width:534px" %)Specifies the order of the Dimension Components within the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. The property is used to indicate the position of the Dimension Component and determines the Key for identifying observations, or [[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]]. The Time Dimension, when specified, must be the last within the Dimension Descriptor.
	200	\|(% style="width:211px" %)[[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]]\|(% style="width:235px" %)(((
1.1	201	Inherits from
23.7	202	//DimensionComponent//
23.5	203	)))\|(% style="width:534px" %)A metadata concept used (most probably together with other metadata concepts) to classify a statistical [[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]], e.g., a statistical concept indicating a certain [[economic activity>>doc:sdmx:Glossary 2\.1.Economic activity.WebHome]] or a geographical [[reference area>>doc:sdmx:Glossary 2\.1.Reference area.WebHome]].
	204	\|(% style="width:211px" %) \|(% style="width:235px" %)/role\|(% style="width:534px" %)Association to the Concept that specifies the role that that the Dimension plays in the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
	205	\|(% style="width:211px" %) \|(% style="width:235px" %)/conceptIdentity\|(% style="width:534px" %)An association to the metadata concept which defines the semantic of the Dimension.
23.7	206	\|(% style="width:211px" %)TimeDimension\|(% style="width:235px" %)(((
1.1	207	Inherits from
23.7	208	//DimensionComponent//
23.5	209	)))\|(% style="width:534px" %)A metadata concept that identifies the component in the key structure that has the role of “time”.
23.7	210	\|(% style="width:211px" %)DataAttribute\|(% style="width:235px" %)(((
1.1	211	Inherits from
23.5	212	//[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
5.7	213	)))\|(% style="width:534px" %)A characteristic of an object or entity.
23.5	214	\|(% style="width:211px" %) \|(% style="width:235px" %)/role\|(% style="width:534px" %)Association to the Concept that specifies the role that that the Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] plays in the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
23.7	215	\|(% style="width:211px" %) \|(% style="width:235px" %)minOccurs\|(% style="width:534px" %)Defines the minimum required occurrences for the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]. When equals to zero, the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is conditional.
	216	\|(% style="width:211px" %) \|(% style="width:235px" %)maxOccurs\|(% style="width:534px" %)Defines the maximum allowed occurrences for the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
23.5	217	\|(% style="width:211px" %) \|(% style="width:235px" %)[[Usage>>doc:IMElements.Usage.WebHome]]\|(% style="width:534px" %)Defines whether a Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] must be reported or not.
	218	\|(% style="width:211px" %) \|(% style="width:235px" %)+relatedTo\|(% style="width:534px" %)Association to an [[Attribute Relationship>>doc:sdmx:Glossary 2\.1.Attribute relationship.WebHome]].
	219	\|(% style="width:211px" %) \|(% style="width:235px" %)/conceptIdentity\|(% style="width:534px" %)An association to the Concept which defines the semantic of the component.
	220	\|(% style="width:211px" %)[[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]]\|(% style="width:235px" %)(((
1.1	221	Inherits from
23.5	222	//[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
	223	)))\|(% style="width:534px" %)The metadata concept that is the phenomenon to be measured in a [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]. In a [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] the instance of the measure is often called the observation.
	224	\|(% style="width:211px" %) \|(% style="width:235px" %)/conceptIdentity\|(% style="width:534px" %)An association to the Concept which carries the values of the measures.
	225	\|(% style="width:211px" %) \|(% style="width:235px" %)minOccurs\|(% style="width:534px" %)Defines the minimum required occurrences for the Measure. When equals to zero, the Measure is conditional.
	226	\|(% style="width:211px" %) \|(% style="width:235px" %)maxOccurs\|(% style="width:534px" %)Defines the maximum allowed occurrences for the Measure.
	227	\|(% style="width:211px" %) \|(% style="width:235px" %)[[Usage>>doc:IMElements.Usage.WebHome]]\|(% style="width:534px" %)Defines whether a Measure must be reported or not.
23.8	228	\|(% style="width:211px" %)//AttributeRelationship//\|(% style="width:235px" %)(((
1.1	229	Abstract Class
	230	Sub classes
23.8	231	ObservationRelationship
	232	GroupRelationship DimensionRelationship
23.5	233	)))\|(% style="width:534px" %)Specifies the type of [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] to which a Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] can be attached in a [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]].
23.8	234	\|(% style="width:211px" %)ObservationRelationship\|(% style="width:235px" %) \|(% style="width:534px" %)The Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is related to the observations of the [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]].
	235	\|(% style="width:211px" %)GroupRelationship\|(% style="width:235px" %) \|(% style="width:534px" %)The Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is related to a Group Dimension Descriptor construct.
23.5	236	\|(% style="width:211px" %) \|(% style="width:235px" %)+groupKey\|(% style="width:534px" %)An association to the Group Dimension Descriptor
23.8	237	\|(% style="width:211px" %)DimensionRelationship\|(% style="width:235px" %) \|(% style="width:534px" %)The Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is related to a set of Dimensions.
23.5	238	\|(% style="width:211px" %) \|(% style="width:235px" %)+dimensions\|(% style="width:534px" %)Association to the set of Dimensions to which the Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is related.
	239	\|(% style="width:211px" %) \|(% style="width:235px" %)+groupKey\|(% style="width:534px" %)Association to the Group Dimension Descriptor which specifies the set of Dimensions to which the Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is attached.
23.8	240	\|(% style="width:211px" %)MeasureRelationship\|(% style="width:235px" %) \|(% style="width:534px" %)The Measures that a Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is reported for.
23.5	241	\|(% style="width:211px" %) \|(% style="width:235px" %)+measures\|(% style="width:534px" %)Association to the set of Measures to which a Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is related to.
	242	\|(% style="width:211px" %)SentinelValuesType\|(% style="width:235px" %) \|(% style="width:534px" %)This facet indicates that an [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] or a Measure has sentinel values with special meaning within their data type. This is realised by providing such values within the TextFormat, in addition to any textType or other Facet.
23.8	243	\|(% style="width:211px" %)SentinelValue\|(% style="width:235px" %) \|(% style="width:534px" %)A value that has a special meaning within the text format representation of the Component.
5.7	244	\|(% style="width:211px" %) \|(% style="width:235px" %)+name\|(% style="width:534px" %)An association of a Sentinel Value to a multilingual name.
	245	\|(% style="width:211px" %) \|(% style="width:235px" %)+description\|(% style="width:534px" %)An association of a Sentinel Value to a multilingual description.
1.1	246
23.5	247	The explanation of the classes, [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], and associations comprising the [[Representation>>doc:IMElements.Representation.WebHome]] is described in the section on the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base
1.1	248
23.5	249	.
	250
23.1	251	== 5.4 Data Set – Relationship View ==
1.1	252
5.1	253	=== 5.4.1 Context ===
1.1	254
12.1	255	A [[data set>>doc:Glossary.Data set.WebHome]] comprises the collection of data values and associated metadata that are collected or disseminated according to a known DataStructureDefinition.
1.1	256
5.1	257	=== 5.4.2 Class Diagram ===
1.1	258
15.5	259	[[image:image57.png]]
	260
1.1	261	Figure 31: Class Diagram of the Data Set
	262
3.3	263	=== 5.4.3 Explanation of the Diagram ===
1.1	264
3.3	265	==== 5.4.3.1 Narrative – Data Set ====
1.1	266
12.1	267	Note that the //[[DataSet>>doc:Glossary.Data set.WebHome]]// must conform to the DataStructureDefinition associated to the [[Dataflow>>doc:Glossary.Dataflow.WebHome]] for which this [[DataSet>>doc:Glossary.Data set.WebHome]] is an “instance of data”. Whilst the model shows the association to the classes of the DataStructureDefinition, this is for conceptual purposes to show the link to the DataStructureDefinition. In the actual //[[DataSet>>doc:Glossary.Data set.WebHome]]// as exchanged there must, of course, be a reference to the DataStructureDefinition and optionally a [[Dataflow>>doc:Glossary.Dataflow.WebHome]] or a ProvisionAgreement, but the DataStructureDefinition is not necessarily exchanged with the data. Therefore, the DataStructureDefinition classes are shown in the grey areas, as these are not a part of the //[[DataSet>>doc:Glossary.Data set.WebHome]]// when the //[[DataSet>>doc:Glossary.Data set.WebHome]]// is exchanged. However, the [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] in the DataStructureDefinition can be used by an application to validate the contents of the //[[DataSet>>doc:Glossary.Data set.WebHome]]// in terms of the valid content of a //KeyValue// as defined by the [[Representation>>doc:Glossary.Representation.WebHome]] in the DataStructureDefinition.
1.1	268
12.1	269	An organisation playing the role of DataProvider can be responsible for one or more //[[DataSet>>doc:Glossary.Data set.WebHome]]//.
1.1	270
12.1	271	A //[[DataSet>>doc:Glossary.Data set.WebHome]]// is formatted as a DataStructureDefinition specific [[data set>>doc:Glossary.Data set.WebHome]] (StructureSpecificDataSet). The structured [[data set>>doc:Glossary.Data set.WebHome]] is structured according to one specific DataStructureDefinition; hence the latter is required for validation at the syntax level.
1.1	272
12.1	273	A //[[DataSet>>doc:Glossary.Data set.WebHome]]// is a collection of a set of //Observation//s that share the same dimensionality, which is specified by a set of unique [[components>>doc:Glossary.Component.WebHome]] ([[Dimension>>doc:Glossary.Dimension.WebHome]], TimeDimension) defined in the DimensionDescriptor of the DataStructureDefinition, together with associated //AttributeValue//s that define specific characteristics about the [[artefact>>doc:Glossary.Artefact.WebHome]] to which it is attached – //Observation//s, set of [[Dimensions>>doc:Glossary.Dimension.WebHome]]. It can be structured in terms of a SeriesKey to which //Observation//s are reported.
1.1	274
12.1	275	The //Observation// can be the value(s) of the variable(s) being measured for the (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) associated to the [[Measure>>doc:Glossary.Measure.WebHome]](s) in the MeasureDescriptor of the DataStructureDefinition. Each //Observation// associates one or more //ObservationValue//s with a KeyValue (+observationDimension) which is the value for the “[[Dimension>>doc:Glossary.Dimension.WebHome]] at the Observation Level”. Any [[Dimension>>doc:Glossary.Dimension.WebHome]] can be specified as being the “[[Dimension>>doc:Glossary.Dimension.WebHome]] at the Observation Level”, and this specification is made at the level of the //[[DataSet>>doc:Glossary.Data set.WebHome]]// (i.e., it must be the same [[Dimension>>doc:Glossary.Dimension.WebHome]] for the entire //[[DataSet>>doc:Glossary.Data set.WebHome]]//).
1.1	276
12.1	277	The //KeyValue// is a value for one of TimeDimension or [[Dimension>>doc:Glossary.Dimension.WebHome]] specified in the DataStructureDefinition. If it is a [[Dimension>>doc:Glossary.Dimension.WebHome]], it can be coded (CodedKeyValue) or uncoded (UncodedKeyValue). If it is the TimeDimension then it is a TimeKeyValue. The actual value that the CodedDimensionValue can take must be one of the [[Codes>>doc:Glossary.Code.WebHome]] in the Codelist specified as the [[Representation>>doc:Glossary.Representation.WebHome]] of the [[Dimension>>doc:Glossary.Dimension.WebHome]] in the DataStructureDefinition.
1.1	278
	279	An ObservationValue can be coded – this is the CodedObservation – or it can be uncoded – this is the UncodedObservation. In the case of uncoded observations, the values may be multilingual – expressed via the TextMeasureValue – or not (OtherUncodedMeasureValue).
	280
12.1	281	The GroupKey is a subunit of the //Key// that has the same dimensionality as the SeriesKey but defines a subset of the KeyValues of the SeriesKey. Its sub [[dimension>>doc:Glossary.Dimension.WebHome]] structure is defined in the GroupDimensionDescriptor of the DataStructureDefinition identified by the same id as the GroupKey. The id identifies a “type” of group and the purpose of the GroupKey is to report one or more //AttributeValue// that are contained at this group level. The GroupKey is present when the GroupDimensionDescriptor is related to the GroupRelationship in the DataStructureDefinition. There can be many types of groups in a //[[DataSet>>doc:Glossary.Data set.WebHome]]//. If the Group is related to the DimensionRelationship in the DataStructureDefinition then the //AttributeValue// will be reported with the appropriate [[dimension>>doc:Glossary.Dimension.WebHome]] in the SeriesKey or Observation.
1.1	282
12.1	283	In this way each of SeriesKey, GroupKey, and Observation can have zero or more //AttributeValue//s that define some metadata about the object to which it is associated. The //AttributeValue// may be either a //DataAttributeValue// or a //MetadataAttributeValue//, representing values of DataAttributes defined in the [[DSD>>doc:Glossary.Data structure definition.WebHome]] or MetadataAttributes of the linked [[MSD>>doc:Glossary.Metadata structure definition.WebHome]], respectively. The allowable (% style="color:#e74c3c" %)[[Concepts>>doc:Glossary.Concept.WebHome]](%%) and the objects to which these metadata can be associated (attached) are defined in the DataStructureDefinition and the linked MetadataStructureDefinition.
1.1	284
	285	The //AttributeValue// links to the object type (SeriesKey, GroupKey, Observation) to which it is associated.
	286
3.3	287	==== 5.4.3.2 Definitions ====
1.1	288
5.4	289	(% style="width:964.835px" %)
	290	\|(% style="width:200px" %)Class\|(% style="width:285px" %)Feature\|(% style="width:454px" %)Description
12.1	291	\|(% style="width:200px" %)//[[DataSet>>doc:Glossary.Data set.WebHome]]//\|(% style="width:285px" %)(((
1.1	292	Abstract Class
	293	Sub classes
14.1	294	StructureSpecificDataSet
5.4	295	)))\|(% style="width:454px" %)An organised collection of data.
12.1	296	\|(% style="width:200px" %) \|(% style="width:285px" %)reportingBegin\|(% style="width:454px" %)A specific [[time period>>doc:Glossary.Time period.WebHome]] in a known system of [[time periods>>doc:Glossary.Time period.WebHome]] that identifies the start period of a report.
	297	\|(% style="width:200px" %) \|(% style="width:285px" %)reportingEnd\|(% style="width:454px" %)A specific [[time period>>doc:Glossary.Time period.WebHome]] in a known system of [[time periods>>doc:Glossary.Time period.WebHome]] that identifies the end period of a report.
	298	\|(% style="width:200px" %) \|(% style="width:285px" %)dataExtractionDate\|(% style="width:454px" %)A specific [[time period>>doc:Glossary.Time period.WebHome]] that identifies the date and time that the data are extracted from a data source.
	299	\|(% style="width:200px" %) \|(% style="width:285px" %)validFrom\|(% style="width:454px" %)Indicates the inclusive start time indicating the validity of the information in the [[data set>>doc:Glossary.Data set.WebHome]].
	300	\|(% style="width:200px" %) \|(% style="width:285px" %)validTo\|(% style="width:454px" %)Indicates the inclusive end time indicating the validity of the information in the [[data set>>doc:Glossary.Data set.WebHome]].
5.4	301	\|(% style="width:200px" %) \|(% style="width:285px" %)publicationYear\|(% style="width:454px" %)Specifies the year of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
	302	\|(% style="width:200px" %) \|(% style="width:285px" %)publicationPeriod\|(% style="width:454px" %)Specifies the period of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
12.1	303	\|(% style="width:200px" %) \|(% style="width:285px" %)setId\|(% style="width:454px" %)Provides an identification of the [[data set>>doc:Glossary.Data set.WebHome]].
5.4	304	\|(% style="width:200px" %) \|(% style="width:285px" %)action\|(% style="width:454px" %)Defines the action to be taken by the recipient system (information, append, replace, delete)
	305	\|(% style="width:200px" %) \|(% style="width:285px" %)describedBy\|(% style="width:454px" %)(((
12.1	306	Associates a [[Dataflow>>doc:Glossary.Dataflow.WebHome]] and thereby a [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] to the [[data set>>doc:Glossary.Data set.WebHome]].
1.1	307	)))
5.4	308	\|(% style="width:200px" %) \|(% style="width:285px" %)+structuredBy\|(% style="width:454px" %)(((
12.1	309	Associates the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] that defines the structure of the [[Data Set>>doc:Glossary.Data set.WebHome]]. Note that the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] is the same as that associated (non-mandatory) to the [[Dataflow>>doc:Glossary.Dataflow.WebHome]].
1.1	310	)))
12.1	311	\|(% style="width:200px" %) \|(% style="width:285px" %)+publishedBy\|(% style="width:454px" %)Associates the [[Data Provider>>doc:Glossary.Data provider.WebHome]] that reports/publishes the data.
	312	\|(% style="width:200px" %)StructureSpecificDataSet\|(% style="width:285px" %) \|(% style="width:454px" %)An XML specific data format structure that contains data corresponding to one specific [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
5.4	313	\|(% style="width:200px" %)//Key//\|(% style="width:285px" %)(((
1.1	314	Abstract class
	315	Sub classes
	316	SeriesKey
	317	GroupKey
12.1	318	)))\|(% style="width:454px" %)Comprises the cross product of values of [[dimensions>>doc:Glossary.Dimension.WebHome]] that identify uniquely an Observation.
5.4	319	\|(% style="width:200px" %) \|(% style="width:285px" %)keyValues\|(% style="width:454px" %)Association to the individual Key Values that comprise the Key.
12.1	320	\|(% style="width:200px" %) \|(% style="width:285px" %)+attachedAttribute\|(% style="width:454px" %)Association to the [[Attribute>>doc:Glossary.Attribute.WebHome]] Values relating to the [[Series Key>>doc:Glossary.Series key.WebHome]] or Group Key.
5.4	321	\|(% style="width:200px" %)//KeyValue//\|(% style="width:285px" %)(((
1.1	322	Abstract class
	323	Sub classes
	324	TimeKeyValue
	325	CodedKeyValue
	326	UncodedKeyValue
12.1	327	)))\|(% style="width:454px" %)The value of a [[component>>doc:Glossary.Component.WebHome]] of a key such as the value of the instance a [[Dimension>>doc:Glossary.Dimension.WebHome]] in a [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor of a [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
5.4	328	\|(% style="width:200px" %) \|(% style="width:285px" %)+valueFor\|(% style="width:454px" %)(((
12.1	329	Association to the key [[component>>doc:Glossary.Component.WebHome]] in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] for which this Key Value is a valid [[representation>>doc:Glossary.Representation.WebHome]].
	330	Note that this is conceptual association as the key [[component>>doc:Glossary.Component.WebHome]] is identified explicitly in the [[data set>>doc:Glossary.Data set.WebHome]].
1.1	331	)))
5.4	332	\|(% style="width:200px" %)TimeKeyValue\|(% style="width:285px" %)(((
1.1	333	Inherits from
	334	//KeyValue//
12.1	335	)))\|(% style="width:454px" %)The value of the Time [[Dimension>>doc:Glossary.Dimension.WebHome]] [[component>>doc:Glossary.Component.WebHome]] of the key.
5.4	336	\|(% style="width:200px" %)CodedKeyValue\|(% style="width:285px" %)(((
1.1	337	Inherits from
	338	//KeyValue//
12.1	339	)))\|(% style="width:454px" %)The value of a coded [[component>>doc:Glossary.Component.WebHome]] of the key. The value is the [[Code>>doc:Glossary.Code.WebHome]] to which this class is associated.
	340	\|(% style="width:200px" %) \|(% style="width:285px" %)+valueOf\|(% style="width:454px" %)Association to the [[Code>>doc:Glossary.Code.WebHome]]. Note that this is a conceptual association showing that the [[Code>>doc:Glossary.Code.WebHome]] must exist in the [[Code list>>doc:Glossary.Code list.WebHome]] associated with the [[Dimension>>doc:Glossary.Dimension.WebHome]] in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]. In the actual [[Data Set>>doc:Glossary.Data set.WebHome]] the value of the [[Code>>doc:Glossary.Code.WebHome]] is placed in the Key Value.
5.4	341	\|(% style="width:200px" %)UnCodedKeyValue\|(% style="width:285px" %)(((
1.1	342	Inherits from
	343	//KeyValue//
12.1	344	)))\|(% style="width:454px" %)The value of an uncoded [[component>>doc:Glossary.Component.WebHome]] of the key.
	345	\|(% style="width:200px" %) \|(% style="width:285px" %)value\|(% style="width:454px" %)The value of the key [[component>>doc:Glossary.Component.WebHome]].
	346	\|(% style="width:200px" %) \|(% style="width:285px" %)startTime\|(% style="width:454px" %)This [[attribute>>doc:Glossary.Attribute.WebHome]] is only used if the textFormat of the [[attribute>>doc:Glossary.Attribute.WebHome]] is of the Timespan type in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] (in which case the value field takes a duration).
5.4	347	\|(% style="width:200px" %)GroupKey\|(% style="width:285px" %)(((
1.1	348	Inherits from
	349	//Key//
12.1	350	)))\|(% style="width:454px" %)A set of Key Values that comprise a partial key, of the same dimensionality as the Time [[Series Key>>doc:Glossary.Series key.WebHome]] for the purpose of attaching Data [[Attributes>>doc:Glossary.Attribute.WebHome]].
	351	\|(% style="width:200px" %) \|(% style="width:285px" %)+describedBy\|(% style="width:454px" %)Associates the Group [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
5.4	352	\|(% style="width:200px" %)SeriesKey\|(% style="width:285px" %)(((
1.1	353	Inherits from
	354	//Key//
12.1	355	)))\|(% style="width:454px" %)Comprises the cross product of values of all the Key Values that, together with the Key Value of the +observation [[Dimension>>doc:Glossary.Dimension.WebHome]] identify uniquely an Observation.
	356	\|(% style="width:200px" %) \|(% style="width:285px" %)+describedBy\|(% style="width:454px" %)Associates the [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
5.4	357	\|(% style="width:200px" %)Observation\|(% style="width:285px" %) \|(% style="width:454px" %)The value(s) of the observed phenomenon in the context of the Key Values comprising the key.
	358	\|(% style="width:200px" %) \|(% style="width:285px" %)+valueFor\|(% style="width:454px" %)(((
12.1	359	Associates the [[Measure>>doc:Glossary.Measure.WebHome]](s) defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
1.1	360
12.1	361	The source multiplicity (1..*) indicates that more than one values may be provided for a [[Measure>>doc:Glossary.Measure.WebHome]], if the latter allows it.
1.1	362	)))
12.1	363	\|(% style="width:200px" %) \|(% style="width:285px" %)+attachedAttribute\|(% style="width:454px" %)Association to the [[Attribute>>doc:Glossary.Attribute.WebHome]] Values relating to the Observation.
	364	\|(% style="width:200px" %) \|(% style="width:285px" %)+observationDimension\|(% style="width:454px" %)Association to the Key Value that holds the value of the “[[Dimension>>doc:Glossary.Dimension.WebHome]] at the Observation Level”.
5.4	365	\|(% style="width:200px" %)//ObservationValue//\|(% style="width:285px" %)(((
1.1	366	Abstract class
	367	Sub classes
5.2	368	//UncodedObservationValue//
1.1	369	CodedObservation
5.4	370	)))\|(% style="width:454px" %)
	371	\|(% style="width:200px" %)//UncodedObservationValue//\|(% style="width:285px" %)(((
1.1	372	Abstract class
	373	Inherits from
	374	//ObservationValue//
	375	Sub classes
5.2	376	OtherUncodedMeasureValue
1.1	377	TextMeasureValue
5.4	378	)))\|(% style="width:454px" %)
	379	\|(% style="width:200px" %)OtherUncodedMeasureValue\|(% style="width:285px" %)(((
1.1	380	Inherits from
5.2	381	//UncodedObservationValue//
5.4	382	)))\|(% style="width:454px" %)An observation that has a text value.
	383	\|(% style="width:200px" %) \|(% style="width:285px" %)value\|(% style="width:454px" %)The value of the Uncoded Observation.
12.1	384	\|(% style="width:200px" %) \|(% style="width:285px" %)startTime\|(% style="width:454px" %)This [[attribute>>doc:Glossary.Attribute.WebHome]] is only used if the textFormat of the [[Measure>>doc:Glossary.Measure.WebHome]] is of the Timespan type in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] (in which case the value field takes a duration).
5.4	385	\|(% style="width:200px" %)TextMeasureValue\|(% style="width:285px" %)(((
1.1	386	Inherits from
5.2	387	//UncodedObservationValue//
5.4	388	)))\|(% style="width:454px" %)An observation that has a localised text value
	389	\|(% style="width:200px" %) \|(% style="width:285px" %)text\|(% style="width:454px" %)The localised text values.
	390	\|(% style="width:200px" %)CodedObservation\|(% style="width:285px" %)(((
1.1	391	Inherits from
	392	//ObservationValue//
12.1	393	)))\|(% style="width:454px" %)An Observation that takes its value from a [[code>>doc:Glossary.Code.WebHome]] in a [[Code list>>doc:Glossary.Code list.WebHome]].
	394	\|(% style="width:200px" %) \|(% style="width:285px" %)+valueOf\|(% style="width:454px" %)Association to the [[Code>>doc:Glossary.Code.WebHome]] that is the value of the Observation. Note that this is a conceptual association showing that the [[Code>>doc:Glossary.Code.WebHome]] must exist in the Codelist(s) associated with the [[Measure>>doc:Glossary.Measure.WebHome]](s) in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]. In the actual [[Data Set>>doc:Glossary.Data set.WebHome]] the value of the [[Code>>doc:Glossary.Code.WebHome]] is placed in the Observation.
5.4	395	\|(% style="width:200px" %)//AttributeValue//\|(% style="width:285px" %)(((
1.1	396	Abstract class
	397	Sub classes
5.4	398	//DataAttributeValue// //MetadataAttributeValue//
12.1	399	)))\|(% style="width:454px" %)Represents the value for any [[Attribute>>doc:Glossary.Attribute.WebHome]] reported in the [[Dataset>>doc:Glossary.Data set.WebHome]], i.e., Data or Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]].
5.4	400	\|(% style="width:200px" %)//DataAttributeValue//\|(% style="width:285px" %)(((
1.1	401	Abstract class
	402	Inherits from
	403	//AttributeValue//
	404	Sub classes
5.2	405	//UncodedAttributeValue
	406	CodedAttributeValue//
12.1	407	)))\|(% style="width:454px" %)The value of a Data [[Attribute>>doc:Glossary.Attribute.WebHome]], such as the instance of a Coded [[Attribute>>doc:Glossary.Attribute.WebHome]] or of an Uncoded [[Attribute>>doc:Glossary.Attribute.WebHome]] in a structure such as a [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
5.4	408	\|(% style="width:200px" %) \|(% style="width:285px" %)+valueFor\|(% style="width:454px" %)(((
12.1	409	Association to the Data [[Attribute>>doc:Glossary.Attribute.WebHome]] defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]. Note that this is conceptual association as the (% style="color:#e74c3c" %)Concept(%%) is identified explicitly in the [[data set>>doc:Glossary.Data set.WebHome]].
	410	The source multiplicity (1..*) indicates the possibility to provide more than one values for a Data [[Attribute>>doc:Glossary.Attribute.WebHome]], if the latter allows it.
1.1	411	)))
5.4	412	\|(% style="width:200px" %)//MetadataAttributeValue//\|(% style="width:285px" %)(((
6.1	413	(explained further in section “Metadata Set”)
12.1	414	)))\|(% style="width:454px" %)The value of a Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]], as specified in the [[Metadata Structure Definition>>doc:Glossary.Metadata structure definition.WebHome]], which is linked in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]
5.4	415	\|(% style="width:200px" %)//UncodedAttributeValue//\|(% style="width:285px" %)(((
1.1	416	Inherits from
	417	//AttributeValue//
	418	Sub classes
15.1	419	OtherUncodedAttributeValue
1.1	420	TextAttributeValue
5.4	421	)))\|(% style="width:454px" %)
	422	\|(% style="width:200px" %)OtherUncodedAttributeValue\|(% style="width:285px" %)(((
1.1	423	Inherits from
5.4	424	//UncodedObservationValue//
12.1	425	)))\|(% style="width:454px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] value that has a text value
	426	\|(% style="width:200px" %) \|(% style="width:285px" %)value\|(% style="width:454px" %)The value of the Uncoded [[attribute>>doc:Glossary.Attribute.WebHome]].
	427	\|(% style="width:200px" %) \|(% style="width:285px" %)startTime\|(% style="width:454px" %)This [[attribute>>doc:Glossary.Attribute.WebHome]] is only used if the textFormat of the [[attribute>>doc:Glossary.Attribute.WebHome]] is of the Timespan type in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] (in which case the value field takes a duration).
5.4	428	\|(% style="width:200px" %)TextAttributeValue\|(% style="width:285px" %)(((
1.1	429	Inherits from
	430	//UncodedAttributeValue//
12.1	431	)))\|(% style="width:454px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] that has a localised text value
5.4	432	\|(% style="width:200px" %) \|(% style="width:285px" %)text\|(% style="width:454px" %)The localised text values.
	433	\|(% style="width:200px" %)CodedAttributeValue\|(% style="width:285px" %)(((
1.1	434	Inherits from
	435	//AttributeValue//
12.1	436	)))\|(% style="width:454px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] that takes it value from a [[Code>>doc:Glossary.Code.WebHome]] in [[Code list>>doc:Glossary.Code list.WebHome]].
	437	\|(% style="width:200px" %) \|(% style="width:285px" %)+valueOf\|(% style="width:454px" %)Association to the [[Code>>doc:Glossary.Code.WebHome]] that is the value of the [[Attribute>>doc:Glossary.Attribute.WebHome]] Value. Note that this is a conceptual association showing that the [[Code>>doc:Glossary.Code.WebHome]] must exist in the [[Code list>>doc:Glossary.Code list.WebHome]] associated with the Data [[Attribute>>doc:Glossary.Attribute.WebHome]] in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]. In the actual [[Data Set>>doc:Glossary.Data set.WebHome]] the value of the [[Code>>doc:Glossary.Code.WebHome]] is placed in the [[Attribute>>doc:Glossary.Attribute.WebHome]] Value.
1.1	438
	439	----
	440
3.3	441	{{putFootnotes/}}