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	1	+Annotation|Artefact|Attribute|Code|Code list|Component|Concept|Constraint|Data provider|Data set|Data structure definition|Dataflow|Dimension|Economic activity|Facet|Maintenance agency|Measure|Metadata structure definition|Reference metadata|Representation|SDMX Information Model|Series key|Statistical data and metadata exchange|Structural metadata|Time period|Version

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4	4
5	5	== 5.1 Introduction ==
6	6
7		-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>>doc:sdmx:Glossary.Data structure definition.WebHome]] (also referred to as [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]]) is used in this specification.
	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.
8	8
9		-Many of the constructs in this layer of the model inherit from the [[SDMX>>doc:sdmx:Glossary.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.
	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]].
10	10
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.Statistical data and metadata exchange.WebHome]] Base gives most of the structure of this sub model both in terms of associations and in terms of [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]]. The relationship diagrams shown in this section show clearly when these associations are inherited from the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Base (see the Appendix “A Short Guide to UML in the [[SDMX Information Model>>doc:sdmx:Glossary.SDMX Information Model.WebHome]]” to see the diagrammatic notation used to depict this).
	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).
12	12
13		-The actual [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Base construct from which the concrete classes inherit depends upon the requirements of the class for:
	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:
14	14
15		-[[Annotation>>doc:sdmx:Glossary.Annotation.WebHome]] – //AnnotableArtefact//
16		-Identification – //IdentifiableArtefact//
17		-Naming – //NameableArtefact//
18		-Versioning – //VersionableArtefact//
19		-Maintenance – //MaintainableArtefact//
	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]]//
20	20
21	21	== 5.2 Inheritance View ==
22	22
23	23	=== 5.2.1 Class Diagram ===
24	24
25		-[[image:1749246368774-202.jpeg]]
	25	+[[image:image53.png]]
26	26
27	27	**Figure 27 Class inheritance in the Data Structure Definition and Data Set Packages**
28	28
...	...	@@ -30,65 +30,65 @@
30	30
31	31	==== 5.2.2.1 Narrative ====
32	32
33		-Those classes in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:sdmx:Glossary.Annotation.WebHome]] inherit from //AnnotableArtefact//. These are:
	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:
34	34
35		-//IdentifiableArtefact
36		-[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]
37		-Key// (and therefore //SeriesKey// and //GroupKey//)
38		-//Observation//
	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]]//
39	39
40		-Those classes in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:sdmx:Glossary.Annotation.WebHome]] and global identity are derived from //IdentifiableArtefact//. These are:
	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:
41	41
42		-//NameableArtefact
43		-ComponentList
44		-[[Component>>doc:sdmx:Glossary.Component.WebHome]]//
	42	+//[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]
	43	+[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]
	44	+[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
45	45
46		-Those classes in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:sdmx:Glossary.Annotation.WebHome]], global identity, multilingual name and multilingual description are derived from //NameableArtefact//. These are:
	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:
47	47
48		-//VersionableArtefact
49		-Item//
	48	+//[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]
	49	+[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//
50	50
51		-The classes in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:sdmx:Glossary.Annotation.WebHome]], global identity, multilingual name and multilingual description, and versioning are derived from //VersionableArtefact//. These are:
	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:
52	52
53		-//MaintainableArtefact//
	53	+//[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
54	54
55		-Abstract classes which represent information that is maintained by [[Maintenance Agencies>>doc:sdmx:Glossary.Maintenance agency.WebHome]] all inherit from //MaintainableArtefact//, they also inherit all the features of a //VersionableArtefact//, and are:
	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:
56	56
57		-//StructureUsage
58		-Structure
59		-ItemScheme//
	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]]//
60	60
61	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.
62	62
63		-Those concrete classes in the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] and [[Dataset>>doc:sdmx:Glossary.Data set.WebHome]] packages of the metamodel which require to be maintained by Agencies all inherit (via other abstract classes) from //MaintainableArtefact//, these are:
	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:
64	64
65		-[[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]]
66		-DataStructureDefinition
67		-The [[component>>doc:sdmx:Glossary.Component.WebHome]] structures that are lists of lists, inherit directly from //Structure//. A //Structure// contains several lists of [[components>>doc:sdmx:Glossary.Component.WebHome]]. The concrete class that inherits from //Structure// is:
68		-DataStructureDefinition
	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]]
69	69
70		-A DataStructureDefinition contains a list of [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]], a list of [[measures>>doc:sdmx:Glossary.Measure.WebHome]] and a list of [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]].
	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]].
71	71
72		-The concrete classes which inherit from //ComponentList// and are subcomponents of the DataStructureDefinition are:
	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:
73	73
74		-DimensionDescriptor – content is [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] and TimeDimension
75		-DimensionGroupDescriptor – content is an association to [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], TimeDimension
76		-MeasureDescriptor – content is [[Measure>>doc:sdmx:Glossary.Measure.WebHome]]
77		-AttributeDescriptor – content is DataAttribute and an association to MetadataAttribute
	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]]
78	78
79		-The classes that inherit from //[[Component>>doc:sdmx:Glossary.Component.WebHome]]// are:
	79	+The classes that inherit from //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// are:
80	80
81		-[[Measure>>doc:sdmx:Glossary.Measure.WebHome]]
82		-//DimensionComponent// and thereby its sub classes of [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] and TimeDimension
83		-//[[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]// and thereby its sub classes of DataAttribute and MetadataAttribute
	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]]
84	84
85		-The concrete classes identified above are the majority of the classes required to define the metamodel for the DataStructureDefinition. The diagrams and explanations in the rest of this section show how these concrete classes are related in order to support the functionality required.
	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.
86	86
87	87	== 5.3 Data Structure Definition – Relationship View ==
88	88
89	89	=== 5.3.1 Class Diagram ===
90	90
91		-[[image:1749246368782-690.jpeg]]
	91	+[[image:image54.png]]
92	92
93	93	**Figure 28 Relationship class diagram of the Data Structure Definition excluding representation**
94	94
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96	96
97	97	==== 5.3.2.1 Narrative ====
98	98
99		-A DataStructureDefinition defines the [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]], TimeDimension, DataAttributes, and [[Measures>>doc:sdmx:Glossary.Measure.WebHome]], and associated [[Representations>>doc:sdmx:Glossary.Representation.WebHome]], that comprise the valid structure of data and related [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]] that are contained in a [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]], which is defined by a [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]]. In addition, a DataStructureDefinition may be related to one MetadataStructureDefinition, in order to use the latter’s MetadataAttributes, by relating them to other //[[Components>>doc:sdmx:Glossary.Component.WebHome]]// within the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]], as explained below.
	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.
100	100
101		-The [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] may also have additional metadata attached that define qualitative information and (% style="color:#e74c3c" %)Constraints(%%) on the use of the DataStructureDefinition such as the subset of [[Codes>>doc:sdmx:Glossary.Code.WebHome]] used in a [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] (this is covered later in this document – see sections “(% style="color:#e74c3c" %)Constraints(%%)” and “Data Provisioning”). Each [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] has a maximum of one DataStructureDefinition specified which defines the structure of any [[DataSets>>doc:sdmx:Glossary.Data set.WebHome]] to be reported/disseminated. A [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] may optionally define which [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] it uses, by defining a DimensionConstraint (this is a mandatory requirement if the DataStructureDefinition sets its’ evolvingStructure property to ‘true’ and is sematically referenced by the [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]]).
	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]]).
102	102
103		-There are two types of [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] each having a common association to (% style="color:#e74c3c" %)Concept(%%):
	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]]:
104	104
105		-* [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]
106		-* TimeDimension
	105	+* [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]]
	106	+* [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
107	107
108		-Note that DimensionComponent can be any or all its sub classes i.e., [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], TimeDimension.
	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]].
109	109
110		-The //DimensionComponent//, DataAttribute, MetadataAttribute and [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] link to the (% style="color:#e74c3c" %)Concept(%%) that defines its name and semantic (/conceptIdentity association to (% style="color:#e74c3c" %)Concept(%%)). The DataAttribute, [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] (but not TimeDimension) and [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] can optionally have a +conceptRole association with a (% style="color:#e74c3c" %)Concept(%%) that identifies its role in the DataStructureDefinition, or one of the standard pre-defined roles, i.e., those published in "GUIDELINES FOR [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] (% style="color:#e74c3c" %)CONCEPT(%%) ROLES" by the [[SDMX>>doc:sdmx:Glossary.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>>doc:sdmx:Glossary.Dimension.WebHome]] value 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.
	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.
111	111
112		-The valid values for a //DimensionComponent//, [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], DataAttribute or MetadataAttribute, when used in this DataStructureDefinition, are defined by the [[Representation>>doc:sdmx:Glossary.Representation.WebHome]]. This [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] is taken from the (% style="color:#e74c3c" %)Concept(%%) definition (coreRepresentation) unless it is overridden in this DataStructureDefinition (localRepresentation) – see Figure 28. Note also that TimeDimension is constrained to specific FacetValueTypes. Moreover, the [[Representations>>doc:sdmx:Glossary.Representation.WebHome]] of MetadataAttributes are specified in the corresponding MetadataStructureDefinition, linked by the DataStructureDefinition.
	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]].
113	113
114		-There will always be a DimensionDescriptor grouping that identifies all of the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] comprising the full key. Together the [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] specify the key of an Observation.
	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]].
115	115
116		-The //DimensionComponent// can optionally be grouped by multiple GroupDimensionDescriptors each of which identifies the group of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] that can form a partial key. The GroupDimensionDescriptor must be identified (GroupDimensionDescriptor.id) and this is used in the GroupKey of the [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]] to declare which DataAttributes or MetadataAttributes are reported at this group (% style="color:#e74c3c" %)level(%%) in the [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]].
	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]].
117	117
118		-There can be a maximum of one TimeDimension specified in the DimensionDescriptor. The TimeDimension is used to specify the (% style="color:#e74c3c" %)Concept(%%) used to convey the [[time period>>doc:sdmx:Glossary.Time period.WebHome]] of the observation in a [[data set>>doc:sdmx:Glossary.Data set.WebHome]]. The TimeDimension must contain a valid [[representation>>doc:sdmx:Glossary.Representation.WebHome]] of time and cannot be coded.
	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.
119	119
120		-There can be one or more [[Measures>>doc:sdmx:Glossary.Measure.WebHome]] under the MeasureDescriptor. [[Measures>>doc:sdmx:Glossary.Measure.WebHome]] represent the observable phenomena. Each [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] may have a valid [[representation>>doc:sdmx:Glossary.Representation.WebHome]], a maxOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] limiting the maximum number of values per [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] (which may be set to 'unbounded' for unlimited occurrences), as well as a minOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]], indicating the minimum required number of values, when the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] is reported. If minOccurs or maxOccurs are omitted (they both default to ‘1’), the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] is considered to take a single value; otherwise, it is an array. Moreover, the usage [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] indicates whether a [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] must be reported or not, by the corresponding values: mandatory or optional.
	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.
121	121
122		-The AttributeDescriptor may contain one or more //[[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]//s, i.e., at least one DataAttribute definition or one MetadataAttribute reference.
	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.
123	123
124		-The DataAttribute defines a characteristic of data that are collected or disseminated and is grouped in the DataStructureDefinition by a single AttributeDescriptor. The DataAttribute can be indicated if it must be reported or not, by the corresponding value of the usage [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]]: i.e., mandatory or optional. The property minOccurs specifies the minimum number of array values to be included when the DataAttribute is reported. Moreover, a maxOccurs [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] indicates whether the DataAttribute may need to report more than one values, i.e., an array of values. The DataAttribute may play a specific role in the structure and this is specified by the +role association to the (% style="color:#e74c3c" %)Concept(%%) that identifies its role.
	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]].
125	125
126		-The MetadataAttribute defines [[reference metadata>>doc:sdmx:Glossary.Reference metadata.WebHome]] that may be collected or disseminated and is grouped together with DataAttribute under the AttributeDescriptor.
	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]].
127	127
128		-A DataAttribute or a MetadataAttribute (i.e., an //AttributeComponent//) is specified as being +relatedTo an AttributeRelationship, which defines the constructs to which the //AttributeComponent// is to be reported within a //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]//. An //AttributeComponent// can be specified as being related to one of the following [[artefacts>>doc:sdmx:Glossary.Artefact.WebHome]]:
	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]]:
129	129
130		-* All data within the [[dataset>>doc:sdmx:Glossary.Data set.WebHome]] (DataflowRelationship) – this is equivalent to attaching an [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] to all data within the [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]].
131		-* [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] or set of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] (DimensionRelationship)
132		-* Set of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] specified by a GroupKey (GroupRelationship – this is retained for compatibility reasons – or +groupKey of the DimensionRelationship)
133		-* Observation (ObservationRelationship)
134		-* In addition to the positioning of an //AttributeComponent// within a //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]//, another relationship indicates the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]](s) for which the //AttributeComponent// is reported. Regardless of the position of the //AttributeComponent// within the //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]//, the //AttributeComponent// may concern one, more than one, or all [[Measures>>doc:sdmx:Glossary.Measure.WebHome]] included in the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]]. This is expressed using the MeasureRelationship class, which relates a DataAttribute to one or more [[Measures>>doc:sdmx:Glossary.Measure.WebHome]]. Lack of the MeasureRelationship defaults to a relationship to all [[Measures>>doc:sdmx:Glossary.Measure.WebHome]].
	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.
135	135
136		-[[image:1749246368785-499.jpeg]]
	136	+[[image:image55.png]]
137	137
138	138	**Figure 29: Attribute Attachment Defined in the Data Structure Definition**
139	139
140		-The following table details the possible relationships a DataAttribute may specify. Note that these relationships are mutually exclusive, and therefore only one of the following is possible.
	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.
141	141
142	142	(% style="width:1142.83px" %)
143	143	|**Relationship**|(% style="width:537px" %)**Meaning**|(% style="width:434px" %)**Location in Data Set at which the Attribute is reported**
144		-|DataflowRelationship|(% style="width:537px" %)The value of the [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is fixed for all data contained in the [[dataset>>doc:sdmx:Glossary.Data set.WebHome]]. The [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] value applies to all data defined by the underlying [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]].|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is reported at the [[Dataset>>doc:sdmx:Glossary.Data set.WebHome]] (% style="color:#e74c3c" %)level(%%).
145		-|[[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] (1..n)|(% style="width:537px" %)The value of the [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] will vary with the value(s) of the referenced [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]](s). In this case, Group(s) to which the [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] should be attached may optionally be specified.|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is reported at the lowest (% style="color:#e74c3c" %)level(%%) of the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] to which the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is related, otherwise at the (% style="color:#e74c3c" %)level(%%) of the Group if Attachment Group(s) is specified.
146		-|Group|(% style="width:537px" %)The value of the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] varies with combination of values for all of the [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] contained in the Group. This is added as a convenience to listing all [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] and the attachment Group, but should only be used when the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] value varies based on all Group [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] values.|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is reported at the (% style="color:#e74c3c" %)level(%%) of Group.
147		-|Observation|(% style="width:537px" %)The value of the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] varies with the observed value.|(% style="width:434px" %)The [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is reported at the (% style="color:#e74c3c" %)level(%%) of Observation.
	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]].
148	148
149		-[[image:1749246368790-555.jpeg]]
	149	+[[image:image56.png]]
150	150
151	151	**Figure 30: Representation of DSD Components**
152	152
153		-Each of [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], TimeDimension, [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], DataAttribute and MetadataAttribute can have a [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] specified (using the localRepresentation association). If this is not specified in the DataStructureDefinition then the [[representation>>doc:sdmx:Glossary.Representation.WebHome]] specified for (% style="color:#e74c3c" %)Concept(%%) (coreRepresentation) is used. [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], and DataAttribute may be also represented by multilingual text (as seen in the [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]] diagram further down). An exception is the MetadataAttribute, where its [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] is specified in the MetadataStructureDefinition.
	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]].
154	154
155		-A DataStructureDefinition can be extended to form a derived DataStructureDefinition. This is supported in the StructureMap.
	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.
156	156
157	157	==== 5.3.2.2 Definitions ====
158	158
159	159	(% style="width:981.835px" %)
160	160	|(% style="width:204px" %)**Class**|(% style="width:236px" %)**Feature**|(% style="width:538px" %)**Description**
161		-|(% style="width:204px" %)StructureUsage|(% style="width:236px" %) |(% style="width:538px" %)See “[[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Base”.
162		-|(% style="width:204px" %)[[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]]|(% style="width:236px" %)(((
	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”.
	162	+|(% style="width:204px" %)[[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]]|(% style="width:236px" %)(((
163	163	Inherits from
164	164
165	165	//StructureUsage//
166		-)))|(% style="width:538px" %)Abstract (% style="color:#e74c3c" %)concept(%%) (i.e., the structure without any data) of a flow of data that providers will provide for different reference periods.
167		-|(% style="width:204px" %) |(% style="width:236px" %)/structure|(% style="width:538px" %)Associates a [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] to the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
168		-|(% style="width:204px" %) |(% style="width:236px" %)dimensionConstraint|(% style="width:538px" %)A list of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] which the [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] 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 (% style="color:#e74c3c" %)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}}(%%).
169		-|(% style="width:204px" %)DataStructureDefinition|(% style="width:236px" %) |(% style="width:538px" %)A collection of metadata (% style="color:#e74c3c" %)concepts(%%), their structure and usage when used to collect or disseminate data.
170		-|(% style="width:204px" %) |(% style="width:236px" %)/grouping|(% style="width:538px" %)An association to a set of metadata (% style="color:#e74c3c" %)concepts(%%) that have an identified structural role in a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
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>>doc:sdmx:Glossary.Dimension.WebHome]] added without having to change its major (% style="color:#e74c3c" %)version(%%) number.
	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}}.
	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.
	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]].
	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.
172	172	|(% style="width:204px" %)GroupDimensionDescriptor|(% style="width:236px" %)(((
173	173	Inherits from
174	174	//ComponentList//
175		-)))|(% style="width:538px" %)A set of metadata (% style="color:#e74c3c" %)concepts(%%) that define a partial key derived from the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor in a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
176		-|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] [[components>>doc:sdmx:Glossary.Component.WebHome]] that comprise the group.
	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]].
	176	+|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to the Dimension components that comprise the group.
177	177	|(% style="width:204px" %)DimensionDescriptor|(% style="width:236px" %)(((
178	178	Inherits from
179	179	//ComponentList//
180		-)))|(% style="width:538px" %)An ordered set of metadata (% style="color:#e74c3c" %)concepts(%%) that, combined, classify a statistical series, and whose values, when combined (the key) in an instance such as a [[data set>>doc:sdmx:Glossary.Data set.WebHome]], uniquely identify a specific observation.
181		-|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] and Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] comprising the Key Descriptor.
	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.
	181	+|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to the Dimension and Time Dimension comprising the Key Descriptor.
182	182	|(% style="width:204px" %)AttributeDescriptor|(% style="width:236px" %)(((
183	183	Inherits from
184	184	//ComponentList//
185		-)))|(% style="width:538px" %)A set metadata (% style="color:#e74c3c" %)concepts(%%) that define the [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]] of a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
186		-|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]].
187		-|(% style="width:204px" %)MeasureDescriptor|(% style="width:236px" %)(((
	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]].
	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.
	187	+|(% style="width:204px" %)[[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]]|(% style="width:236px" %)(((
188	188	Inherits from
189	189	//ComponentList//
190		-)))|(% style="width:538px" %)A metadata (% style="color:#e74c3c" %)concept(%%) that defines the [[Measures>>doc:sdmx:Glossary.Measure.WebHome]] of a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
191		-|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to a [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]].
	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]].
	191	+|(% style="width:204px" %) |(% style="width:236px" %)/components|(% style="width:538px" %)An association to a Measure component.
192	192	|(% style="width:204px" %)//DimensionComponent//|(% style="width:236px" %)(((
193	193	Inherits from
194		-//[[Component>>doc:sdmx:Glossary.Component.WebHome]]//
	194	+//[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
195	195	Sub class
196		-[[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]
	196	+[[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]]
197	197	TimeDimension
198		-)))|(% style="width:538px" %)An abstract class representing any [[Component>>doc:sdmx:Glossary.Component.WebHome]] that can be used for identifying observations.
199		-
200		-(% style="width:981.835px" %)
201		-|(% style="width:211px" %)**Class**|(% style="width:235px" %)**Feature**|(% style="width:534px" %)**Description**
202		-|(% style="width:211px" %) |(% style="width:235px" %)Order|(% style="width:534px" %)Specifies the order of the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] [[Components>>doc:sdmx:Glossary.Component.WebHome]] within the [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]]. The property is used to indicate the position of the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] [[Component>>doc:sdmx:Glossary.Component.WebHome]] and determines the Key for identifying observations, or series. The Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], when specified, must be the last within the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor.
203		-|(% style="width:211px" %)[[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]|(% style="width:235px" %)(((
	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" %)(((
204	204	Inherits from
205	205	//DimensionComponent//
206		-)))|(% style="width:534px" %)A metadata (% style="color:#e74c3c" %)concept(%%) used (most probably together with other metadata (% style="color:#e74c3c" %)concepts(%%)) to classify a statistical series, e.g., a statistical (% style="color:#e74c3c" %)concept(%%) indicating a certain [[economic activity>>doc:sdmx:Glossary.Economic activity.WebHome]] or a geographical reference area.
207		-|(% style="width:211px" %) |(% style="width:235px" %)/role|(% style="width:534px" %)Association to the (% style="color:#e74c3c" %)Concept(%%) that specifies the role that that the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] plays in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
208		-|(% style="width:211px" %) |(% style="width:235px" %)/conceptIdentity|(% style="width:534px" %)An association to the metadata (% style="color:#e74c3c" %)concept(%%) which defines the semantic of the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]].
	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.
209	209	|(% style="width:211px" %)TimeDimension|(% style="width:235px" %)(((
210	210	Inherits from
211	211	//DimensionComponent//
212		-)))|(% style="width:534px" %)A metadata (% style="color:#e74c3c" %)concept(%%) that identifies the [[component>>doc:sdmx:Glossary.Component.WebHome]] in the key structure that has the role of “time”.
	209	+)))|(% style="width:534px" %)A metadata concept that identifies the component in the key structure that has the role of “time”.
213	213	|(% style="width:211px" %)DataAttribute|(% style="width:235px" %)(((
214	214	Inherits from
215		-//[[Component>>doc:sdmx:Glossary.Component.WebHome]]//
	212	+//[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//
216	216	)))|(% style="width:534px" %)A characteristic of an object or entity.
217		-|(% style="width:211px" %) |(% style="width:235px" %)/role|(% style="width:534px" %)Association to the (% style="color:#e74c3c" %)Concept(%%) that specifies the role that that the Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] plays in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
218		-|(% style="width:211px" %) |(% style="width:235px" %)minOccurs|(% style="width:534px" %)Defines the minimum required occurrences for the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]]. When equals to zero, the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is conditional.
219		-|(% style="width:211px" %) |(% style="width:235px" %)maxOccurs|(% style="width:534px" %)Defines the maximum allowed occurrences for the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]].
220		-|(% style="width:211px" %) |(% style="width:235px" %)Usage|(% style="width:534px" %)Defines whether a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] must be reported or not.
221		-|(% style="width:211px" %) |(% style="width:235px" %)+relatedTo|(% style="width:534px" %)Association to an [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Relationship.
222		-|(% style="width:211px" %) |(% style="width:235px" %)/conceptIdentity|(% style="width:534px" %)An association to the (% style="color:#e74c3c" %)Concept(%%) which defines the semantic of the [[component>>doc:sdmx:Glossary.Component.WebHome]].
223		-|(% style="width:211px" %)[[Measure>>doc:sdmx:Glossary.Measure.WebHome]]|(% style="width:235px" %)(((
	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]].
	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]].
	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" %)(((
224	224	Inherits from
225		-//[[Component>>doc:sdmx:Glossary.Component.WebHome]]//
226		-)))|(% style="width:534px" %)The metadata (% style="color:#e74c3c" %)concept(%%) that is the phenomenon to be measured in a [[data set>>doc:sdmx:Glossary.Data set.WebHome]]. In a [[data set>>doc:sdmx:Glossary.Data set.WebHome]] the instance of the [[measure>>doc:sdmx:Glossary.Measure.WebHome]] is often called the observation.
227		-|(% style="width:211px" %) |(% style="width:235px" %)/conceptIdentity|(% style="width:534px" %)An association to the (% style="color:#e74c3c" %)Concept(%%) which carries the values of the [[measures>>doc:sdmx:Glossary.Measure.WebHome]].
228		-|(% style="width:211px" %) |(% style="width:235px" %)minOccurs|(% style="width:534px" %)Defines the minimum required occurrences for the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]]. When equals to zero, the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] is conditional.
229		-|(% style="width:211px" %) |(% style="width:235px" %)maxOccurs|(% style="width:534px" %)Defines the maximum allowed occurrences for the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]].
230		-|(% style="width:211px" %) |(% style="width:235px" %)Usage|(% style="width:534px" %)Defines whether a [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] must be reported or not.
	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.
231	231	|(% style="width:211px" %)//AttributeRelationship//|(% style="width:235px" %)(((
232	232	Abstract Class
233	233	Sub classes
234	234	ObservationRelationship
235	235	GroupRelationship DimensionRelationship
236		-)))|(% style="width:534px" %)Specifies the type of [[artefact>>doc:sdmx:Glossary.Artefact.WebHome]] to which a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] can be attached in a [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]].
237		-|(% style="width:211px" %)ObservationRelationship|(% style="width:235px" %) |(% style="width:534px" %)The Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is related to the observations of the [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]].
238		-|(% style="width:211px" %)GroupRelationship|(% style="width:235px" %) |(% style="width:534px" %)The Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is related to a Group [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor construct.
239		-|(% style="width:211px" %) |(% style="width:235px" %)+groupKey|(% style="width:534px" %)An association to the Group [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor
240		-|(% style="width:211px" %)DimensionRelationship|(% style="width:235px" %) |(% style="width:534px" %)The Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is related to a set of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]].
241		-|(% style="width:211px" %) |(% style="width:235px" %)+dimensions|(% style="width:534px" %)Association to the set of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] to which the Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is related.
242		-|(% style="width:211px" %) |(% style="width:235px" %)+groupKey|(% style="width:534px" %)Association to the Group [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor which specifies the set of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] to which the Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is attached.
243		-|(% style="width:211px" %)MeasureRelationship|(% style="width:235px" %) |(% style="width:534px" %)The [[Measures>>doc:sdmx:Glossary.Measure.WebHome]] that a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is reported for.
244		-|(% style="width:211px" %) |(% style="width:235px" %)+measures|(% style="width:534px" %)Association to the set of [[Measures>>doc:sdmx:Glossary.Measure.WebHome]] to which a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is related to.
245		-|(% style="width:211px" %)SentinelValuesType|(% style="width:235px" %) |(% style="width:534px" %)This [[facet>>doc:sdmx:Glossary.Facet.WebHome]] indicates that an [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] or a [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] 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>>doc:sdmx:Glossary.Facet.WebHome]].
246		-|(% style="width:211px" %)SentinelValue|(% style="width:235px" %) |(% style="width:534px" %)A value that has a special meaning within the text format [[representation>>doc:sdmx:Glossary.Representation.WebHome]] of the [[Component>>doc:sdmx:Glossary.Component.WebHome]].
	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]].
	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.
	236	+|(% style="width:211px" %) |(% style="width:235px" %)+groupKey|(% style="width:534px" %)An association to the Group Dimension Descriptor
	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.
	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.
	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.
	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.
	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.
247	247	|(% style="width:211px" %) |(% style="width:235px" %)+name|(% style="width:534px" %)An association of a Sentinel Value to a multilingual name.
248	248	|(% style="width:211px" %) |(% style="width:235px" %)+description|(% style="width:534px" %)An association of a Sentinel Value to a multilingual description.
249	249
250		-The explanation of the classes, [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]], and associations comprising the [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] is described in the section on the [[SDMX>>doc:sdmx:Glossary.Statistical data and metadata exchange.WebHome]] Base.
	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..
251	251
252		-==== //5.4 Data Set – Relationship View// ====
	249	+== 5.4 Data Set – Relationship View ==
253	253
254	254	=== 5.4.1 Context ===
255	255
256		-A [[data set>>doc:sdmx:Glossary.Data set.WebHome]] comprises the collection of data values and associated metadata that are collected or disseminated according to a known DataStructureDefinition.
	253	+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.
257	257
258	258	=== 5.4.2 Class Diagram ===
259	259
260		-[[image:1749246368794-672.jpeg]]
	257	+[[image:image57.png]]
261	261
262	262	**Figure 31: Class Diagram of the Data Set**
263	263
...	...	@@ -265,23 +265,23 @@
265	265
266	266	==== 5.4.3.1 Narrative – Data Set ====
267	267
268		-Note that the //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]// must conform to the DataStructureDefinition associated to the [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] for which this [[DataSet>>doc:sdmx: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:sdmx:Glossary.Data set.WebHome]]// as exchanged there must, of course, be a reference to the DataStructureDefinition and optionally a [[Dataflow>>doc:sdmx: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:sdmx:Glossary.Data set.WebHome]]// when the //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]// is exchanged. However, the [[structural metadata>>doc:sdmx:Glossary.Structural metadata.WebHome]] in the DataStructureDefinition can be used by an application to validate the contents of the //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]// in terms of the valid content of a //KeyValue// as defined by the [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] in the DataStructureDefinition.
	265	+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.
269	269
270		-An organisation playing the role of DataProvider can be responsible for one or more //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]//.
	267	+An organisation playing the role of DataProvider can be responsible for one or more //[[DataSet>>doc:Glossary.Data set.WebHome]]//.
271	271
272		-A //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]// is formatted as a DataStructureDefinition specific [[data set>>doc:sdmx:Glossary.Data set.WebHome]] (StructureSpecificDataSet). The structured [[data set>>doc:sdmx:Glossary.Data set.WebHome]] is structured according to one specific DataStructureDefinition; hence the latter is required for validation at the syntax (% style="color:#e74c3c" %)level(%%).
	269	+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.
273	273
274		-A //[[DataSet>>doc:sdmx: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:sdmx:Glossary.Component.WebHome]] ([[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], TimeDimension) defined in the DimensionDescriptor of the DataStructureDefinition, together with associated //AttributeValue//s that define specific characteristics about the [[artefact>>doc:sdmx:Glossary.Artefact.WebHome]] to which it is attached – //Observation//s, set of [[Dimensions>>doc:sdmx:Glossary.Dimension.WebHome]]. It can be structured in terms of a SeriesKey to which //Observation//s are reported.
	271	+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.
275	275
276		-The //Observation// can be the value(s) of the variable(s) being measured for the (% style="color:#e74c3c" %)Concept(%%) associated to the [[Measure>>doc:sdmx: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:sdmx:Glossary.Dimension.WebHome]] at the Observation (% style="color:#e74c3c" %)Level(%%)”. Any [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] can be specified as being the “[[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] at the Observation (% style="color:#e74c3c" %)Level(%%)”, and this specification is made at the (% style="color:#e74c3c" %)level(%%) of the //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]// (i.e., it must be the same [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] for the entire //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]//).
	273	+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]]//).
277	277
278		-The //KeyValue// is a value for one of TimeDimension or [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] specified in the DataStructureDefinition. If it is a [[Dimension>>doc:sdmx: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:sdmx:Glossary.Code.WebHome]] in the Codelist specified as the [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] of the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] in the DataStructureDefinition.
	275	+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.
279	279
280	280	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).
281	281
282		-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:sdmx: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 (% style="color:#e74c3c" %)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:sdmx: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:sdmx:Glossary.Dimension.WebHome]] in the SeriesKey or Observation.
	279	+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.
283	283
284		-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:sdmx:Glossary.Data structure definition.WebHome]] or MetadataAttributes of the linked [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]], respectively. The allowable (% style="color:#e74c3c" %)Concepts(%%) and the objects to which these metadata can be associated (attached) are defined in the DataStructureDefinition and the linked MetadataStructureDefinition.
	281	+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.
285	285
286	286	The //AttributeValue// links to the object type (SeriesKey, GroupKey, Observation) to which it is associated.
287	287
...	...	@@ -289,37 +289,36 @@
289	289
290	290	(% style="width:964.835px" %)
291	291	|(% style="width:200px" %)**Class**|(% style="width:285px" %)**Feature**|(% style="width:454px" %)**Description**
292		-|(% style="width:200px" %)//[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]//|(% style="width:285px" %)(((
	289	+|(% style="width:200px" %)//[[DataSet>>doc:Glossary.Data set.WebHome]]//|(% style="width:285px" %)(((
293	293	Abstract Class
294	294	Sub classes
295		-StructureSpecificData
296		-Set
	292	+StructureSpecificDataSet
297	297	)))|(% style="width:454px" %)An organised collection of data.
298		-|(% style="width:200px" %) |(% style="width:285px" %)reportingBegin|(% style="width:454px" %)A specific [[time period>>doc:sdmx:Glossary.Time period.WebHome]] in a known system of [[time periods>>doc:sdmx:Glossary.Time period.WebHome]] that identifies the start period of a report.
299		-|(% style="width:200px" %) |(% style="width:285px" %)reportingEnd|(% style="width:454px" %)A specific [[time period>>doc:sdmx:Glossary.Time period.WebHome]] in a known system of [[time periods>>doc:sdmx:Glossary.Time period.WebHome]] that identifies the end period of a report.
300		-|(% style="width:200px" %) |(% style="width:285px" %)dataExtractionDate|(% style="width:454px" %)A specific [[time period>>doc:sdmx:Glossary.Time period.WebHome]] that identifies the date and time that the data are extracted from a data source.
301		-|(% 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:sdmx:Glossary.Data set.WebHome]].
302		-|(% 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:sdmx:Glossary.Data set.WebHome]].
	294	+|(% 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.
	295	+|(% 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.
	296	+|(% 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.
	297	+|(% 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]].
	298	+|(% 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]].
303	303	|(% 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.
304	304	|(% 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.
305		-|(% style="width:200px" %) |(% style="width:285px" %)setId|(% style="width:454px" %)Provides an identification of the [[data set>>doc:sdmx:Glossary.Data set.WebHome]].
	301	+|(% style="width:200px" %) |(% style="width:285px" %)setId|(% style="width:454px" %)Provides an identification of the [[data set>>doc:Glossary.Data set.WebHome]].
306	306	|(% style="width:200px" %) |(% style="width:285px" %)action|(% style="width:454px" %)Defines the action to be taken by the recipient system (information, append, replace, delete)
307	307	|(% style="width:200px" %) |(% style="width:285px" %)describedBy|(% style="width:454px" %)(((
308		-Associates a [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]] and thereby a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] to the [[data set>>doc:sdmx:Glossary.Data set.WebHome]].
	304	+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]].
309	309	)))
310	310	|(% style="width:200px" %) |(% style="width:285px" %)+structuredBy|(% style="width:454px" %)(((
311		-Associates the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] that defines the structure of the [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]]. Note that the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] is the same as that associated (non-mandatory) to the [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]].
	307	+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]].
312	312	)))
313		-|(% style="width:200px" %) |(% style="width:285px" %)+publishedBy|(% style="width:454px" %)Associates the [[Data Provider>>doc:sdmx:Glossary.Data provider.WebHome]] that reports/publishes the data.
314		-|(% 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:sdmx:Glossary.Data structure definition.WebHome]].
	309	+|(% style="width:200px" %) |(% style="width:285px" %)+publishedBy|(% style="width:454px" %)Associates the [[Data Provider>>doc:Glossary.Data provider.WebHome]] that reports/publishes the data.
	310	+|(% 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]].
315	315	|(% style="width:200px" %)//Key//|(% style="width:285px" %)(((
316	316	Abstract class
317	317	Sub classes
318	318	SeriesKey
319	319	GroupKey
320		-)))|(% style="width:454px" %)Comprises the cross product of values of [[dimensions>>doc:sdmx:Glossary.Dimension.WebHome]] that identify uniquely an Observation.
	316	+)))|(% style="width:454px" %)Comprises the cross product of values of [[dimensions>>doc:Glossary.Dimension.WebHome]] that identify uniquely an Observation.
321	321	|(% style="width:200px" %) |(% style="width:285px" %)keyValues|(% style="width:454px" %)Association to the individual Key Values that comprise the Key.
322		-|(% style="width:200px" %) |(% style="width:285px" %)+attachedAttribute|(% style="width:454px" %)Association to the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Values relating to the [[Series Key>>doc:sdmx:Glossary.Series key.WebHome]] or Group Key.
	318	+|(% 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.
323	323	|(% style="width:200px" %)//KeyValue//|(% style="width:285px" %)(((
324	324	Abstract class
325	325	Sub classes
...	...	@@ -326,44 +326,44 @@
326	326	TimeKeyValue
327	327	CodedKeyValue
328	328	UncodedKeyValue
329		-)))|(% style="width:454px" %)The value of a [[component>>doc:sdmx:Glossary.Component.WebHome]] of a key such as the value of the instance a [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] in a [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor of a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
	325	+)))|(% 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]].
330	330	|(% style="width:200px" %) |(% style="width:285px" %)+valueFor|(% style="width:454px" %)(((
331		-Association to the key [[component>>doc:sdmx:Glossary.Component.WebHome]] in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] for which this Key Value is a valid [[representation>>doc:sdmx:Glossary.Representation.WebHome]].
332		-Note that this is conceptual association as the key [[component>>doc:sdmx:Glossary.Component.WebHome]] is identified explicitly in the [[data set>>doc:sdmx:Glossary.Data set.WebHome]].
	327	+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]].
	328	+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]].
333	333	)))
334	334	|(% style="width:200px" %)TimeKeyValue|(% style="width:285px" %)(((
335	335	Inherits from
336	336	//KeyValue//
337		-)))|(% style="width:454px" %)The value of the Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]] of the key.
	333	+)))|(% style="width:454px" %)The value of the Time [[Dimension>>doc:Glossary.Dimension.WebHome]] [[component>>doc:Glossary.Component.WebHome]] of the key.
338	338	|(% style="width:200px" %)CodedKeyValue|(% style="width:285px" %)(((
339	339	Inherits from
340	340	//KeyValue//
341		-)))|(% style="width:454px" %)The value of a coded [[component>>doc:sdmx:Glossary.Component.WebHome]] of the key. The value is the [[Code>>doc:sdmx:Glossary.Code.WebHome]] to which this class is associated.
342		-|(% style="width:200px" %) |(% style="width:285px" %)+valueOf|(% style="width:454px" %)Association to the [[Code>>doc:sdmx:Glossary.Code.WebHome]]. Note that this is a conceptual association showing that the [[Code>>doc:sdmx:Glossary.Code.WebHome]] must exist in the [[Code list>>doc:sdmx:Glossary.Code list.WebHome]] associated with the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]]. In the actual [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]] the value of the [[Code>>doc:sdmx:Glossary.Code.WebHome]] is placed in the Key Value.
	337	+)))|(% 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.
	338	+|(% 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.
343	343	|(% style="width:200px" %)UnCodedKeyValue|(% style="width:285px" %)(((
344	344	Inherits from
345	345	//KeyValue//
346		-)))|(% style="width:454px" %)The value of an uncoded [[component>>doc:sdmx:Glossary.Component.WebHome]] of the key.
347		-|(% style="width:200px" %) |(% style="width:285px" %)value|(% style="width:454px" %)The value of the key [[component>>doc:sdmx:Glossary.Component.WebHome]].
348		-|(% style="width:200px" %) |(% style="width:285px" %)startTime|(% style="width:454px" %)This [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is only used if the textFormat of the [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is of the Timespan type in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] (in which case the value field takes a duration).
	342	+)))|(% style="width:454px" %)The value of an uncoded [[component>>doc:Glossary.Component.WebHome]] of the key.
	343	+|(% style="width:200px" %) |(% style="width:285px" %)value|(% style="width:454px" %)The value of the key [[component>>doc:Glossary.Component.WebHome]].
	344	+|(% 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).
349	349	|(% style="width:200px" %)GroupKey|(% style="width:285px" %)(((
350	350	Inherits from
351	351	//Key//
352		-)))|(% style="width:454px" %)A set of Key Values that comprise a partial key, of the same dimensionality as the Time [[Series Key>>doc:sdmx:Glossary.Series key.WebHome]] for the purpose of attaching Data [[Attributes>>doc:sdmx:Glossary.Attribute.WebHome]].
353		-|(% style="width:200px" %) |(% style="width:285px" %)+describedBy|(% style="width:454px" %)Associates the Group [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor defined in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
	348	+)))|(% 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]].
	349	+|(% 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]].
354	354	|(% style="width:200px" %)SeriesKey|(% style="width:285px" %)(((
355	355	Inherits from
356	356	//Key//
357		-)))|(% 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:sdmx:Glossary.Dimension.WebHome]] identify uniquely an Observation.
358		-|(% style="width:200px" %) |(% style="width:285px" %)+describedBy|(% style="width:454px" %)Associates the [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] Descriptor defined in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
	353	+)))|(% 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.
	354	+|(% 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]].
359	359	|(% 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.
360	360	|(% style="width:200px" %) |(% style="width:285px" %)+valueFor|(% style="width:454px" %)(((
361		-Associates the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]](s) defined in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
	357	+Associates the [[Measure>>doc:Glossary.Measure.WebHome]](s) defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
362	362
363		-The source multiplicity (1..*) indicates that more than one values may be provided for a [[Measure>>doc:sdmx:Glossary.Measure.WebHome]], if the latter allows it.
	359	+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.
364	364	)))
365		-|(% style="width:200px" %) |(% style="width:285px" %)+attachedAttribute|(% style="width:454px" %)Association to the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Values relating to the Observation.
366		-|(% style="width:200px" %) |(% style="width:285px" %)+observationDimension|(% style="width:454px" %)Association to the Key Value that holds the value of the “[[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] at the Observation (% style="color:#e74c3c" %)Level(%%)”.
	361	+|(% style="width:200px" %) |(% style="width:285px" %)+attachedAttribute|(% style="width:454px" %)Association to the [[Attribute>>doc:Glossary.Attribute.WebHome]] Values relating to the Observation.
	362	+|(% 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”.
367	367	|(% style="width:200px" %)//ObservationValue//|(% style="width:285px" %)(((
368	368	Abstract class
369	369	Sub classes
...	...	@@ -383,7 +383,7 @@
383	383	//UncodedObservationValue//
384	384	)))|(% style="width:454px" %)An observation that has a text value.
385	385	|(% style="width:200px" %) |(% style="width:285px" %)value|(% style="width:454px" %)The value of the Uncoded Observation.
386		-|(% style="width:200px" %) |(% style="width:285px" %)startTime|(% style="width:454px" %)This [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is only used if the textFormat of the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]] is of the Timespan type in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] (in which case the value field takes a duration).
	382	+|(% 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).
387	387	|(% style="width:200px" %)TextMeasureValue|(% style="width:285px" %)(((
388	388	Inherits from
389	389	//UncodedObservationValue//
...	...	@@ -392,13 +392,13 @@
392	392	|(% style="width:200px" %)CodedObservation|(% style="width:285px" %)(((
393	393	Inherits from
394	394	//ObservationValue//
395		-)))|(% style="width:454px" %)An Observation that takes its value from a [[code>>doc:sdmx:Glossary.Code.WebHome]] in a [[Code list>>doc:sdmx:Glossary.Code list.WebHome]].
396		-|(% style="width:200px" %) |(% style="width:285px" %)+valueOf|(% style="width:454px" %)Association to the [[Code>>doc:sdmx:Glossary.Code.WebHome]] that is the value of the Observation. Note that this is a conceptual association showing that the [[Code>>doc:sdmx:Glossary.Code.WebHome]] must exist in the Codelist(s) associated with the [[Measure>>doc:sdmx:Glossary.Measure.WebHome]](s) in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]]. In the actual [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]] the value of the [[Code>>doc:sdmx:Glossary.Code.WebHome]] is placed in the Observation.
	391	+)))|(% 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]].
	392	+|(% 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.
397	397	|(% style="width:200px" %)//AttributeValue//|(% style="width:285px" %)(((
398	398	Abstract class
399	399	Sub classes
400	400	//DataAttributeValue// //MetadataAttributeValue//
401		-)))|(% style="width:454px" %)Represents the value for any [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] reported in the [[Dataset>>doc:sdmx:Glossary.Data set.WebHome]], i.e., Data or Metadata [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]].
	397	+)))|(% 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]].
402	402	|(% style="width:200px" %)//DataAttributeValue//|(% style="width:285px" %)(((
403	403	Abstract class
404	404	Inherits from
...	...	@@ -406,38 +406,37 @@
406	406	Sub classes
407	407	//UncodedAttributeValue
408	408	CodedAttributeValue//
409		-)))|(% style="width:454px" %)The value of a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], such as the instance of a Coded [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] or of an Uncoded [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] in a structure such as a [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]].
	405	+)))|(% 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]].
410	410	|(% style="width:200px" %) |(% style="width:285px" %)+valueFor|(% style="width:454px" %)(((
411		-Association to the Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] defined in the [[Data Structure Definition>>doc:sdmx: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:sdmx:Glossary.Data set.WebHome]].
412		-The source multiplicity (1..*) indicates the possibility to provide more than one values for a Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], if the latter allows it.
	407	+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]].
	408	+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.
413	413	)))
414	414	|(% style="width:200px" %)//MetadataAttributeValue//|(% style="width:285px" %)(((
415	415	(explained further in section “Metadata Set”)
416		-)))|(% style="width:454px" %)The value of a Metadata [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]], as specified in the [[Metadata Structure Definition>>doc:sdmx:Glossary.Metadata structure definition.WebHome]], which is linked in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]]
	412	+)))|(% 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]]
417	417	|(% style="width:200px" %)//UncodedAttributeValue//|(% style="width:285px" %)(((
418	418	Inherits from
419	419	//AttributeValue//
420	420	Sub classes
421		-OtherUncodedAttribute
422		-Value
	417	+OtherUncodedAttributeValue
423	423	TextAttributeValue
424	424	)))|(% style="width:454px" %)
425	425	|(% style="width:200px" %)OtherUncodedAttributeValue|(% style="width:285px" %)(((
426	426	Inherits from
427	427	//UncodedObservationValue//
428		-)))|(% style="width:454px" %)An [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] value that has a text value
429		-|(% style="width:200px" %) |(% style="width:285px" %)value|(% style="width:454px" %)The value of the Uncoded [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]].
430		-|(% style="width:200px" %) |(% style="width:285px" %)startTime|(% style="width:454px" %)This [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is only used if the textFormat of the [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is of the Timespan type in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] (in which case the value field takes a duration).
	423	+)))|(% style="width:454px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] value that has a text value
	424	+|(% style="width:200px" %) |(% style="width:285px" %)value|(% style="width:454px" %)The value of the Uncoded [[attribute>>doc:Glossary.Attribute.WebHome]].
	425	+|(% 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).
431	431	|(% style="width:200px" %)TextAttributeValue|(% style="width:285px" %)(((
432	432	Inherits from
433	433	//UncodedAttributeValue//
434		-)))|(% style="width:454px" %)An [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] that has a localised text value
	429	+)))|(% style="width:454px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] that has a localised text value
435	435	|(% style="width:200px" %) |(% style="width:285px" %)text|(% style="width:454px" %)The localised text values.
436	436	|(% style="width:200px" %)CodedAttributeValue|(% style="width:285px" %)(((
437	437	Inherits from
438	438	//AttributeValue//
439		-)))|(% style="width:454px" %)An [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] that takes it value from a [[Code>>doc:sdmx:Glossary.Code.WebHome]] in [[Code list>>doc:sdmx:Glossary.Code list.WebHome]].
440		-|(% style="width:200px" %) |(% style="width:285px" %)+valueOf|(% style="width:454px" %)Association to the [[Code>>doc:sdmx:Glossary.Code.WebHome]] that is the value of the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Value. Note that this is a conceptual association showing that the [[Code>>doc:sdmx:Glossary.Code.WebHome]] must exist in the [[Code list>>doc:sdmx:Glossary.Code list.WebHome]] associated with the Data [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] in the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]]. In the actual [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]] the value of the [[Code>>doc:sdmx:Glossary.Code.WebHome]] is placed in the [[Attribute>>doc:sdmx:Glossary.Attribute.WebHome]] Value.
	434	+)))|(% 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]].
	435	+|(% 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.
441	441
442	442	----
443	443

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SKMS.Methodology.Code.MethodologyClass[0]

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	1	+6