Wiki source code of 5 Data Structure Definition and Dataset

Version 18.1 by Artur on 2025/07/14 10:19

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15.1	1	{{box title="Contents"}}
	2	{{toc/}}
	3	{{/box}}
2.1	4
	5	== 5.1 Introduction ==
	6
14.1	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:Glossary.Data structure definition.WebHome]] (also referred to as [[DSD>>doc:Glossary.Data structure definition.WebHome]]) is used in this specification.
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14.1	9	Many of the constructs in this layer of the model inherit from the [[SDMX>>doc: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.
2.1	10
14.1	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: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:Glossary.Attribute.WebHome]]. The relationship diagrams shown in this section show clearly when these associations are inherited from the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base (see the Appendix “A Short Guide to UML in the [[SDMX Information Model>>doc:Glossary.SDMX Information Model.WebHome]]” to see the diagrammatic notation used to depict this).
2.1	12
14.1	13	The actual [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base construct from which the concrete classes inherit depends upon the requirements of the class for:
2.1	14
14.1	15	[[Annotation>>doc:Glossary.Annotation.WebHome]] – //AnnotableArtefact//
2.1	16	Identification – //IdentifiableArtefact//
	17	Naming – //NameableArtefact//
	18	Versioning – //VersionableArtefact//
	19	Maintenance – //MaintainableArtefact//
	20
	21	== 5.2 Inheritance View ==
	22
	23	=== 5.2.1 Class Diagram ===
	24
15.1	25	(% contenteditable="false" tabindex="-1" %)[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_91284c0b.jpg\|\|height="762" width="598"]]
2.1	26
	27	Figure 27 Class inheritance in the Data Structure Definition and Data Set Packages
	28
	29	=== 5.2.2 Explanation of the Diagram ===
	30
	31	==== 5.2.2.1 Narrative ====
	32
14.1	33	Those classes in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:Glossary.Annotation.WebHome]] inherit from //AnnotableArtefact//. These are:
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8.3	35	//IdentifiableArtefact
14.1	36	[[DataSet>>doc:Glossary.Data set.WebHome]]
8.3	37	Key// (and therefore //SeriesKey// and //GroupKey//)
2.1	38	//Observation//
	39
14.1	40	Those classes in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:Glossary.Annotation.WebHome]] and global identity are derived from //IdentifiableArtefact//. These are:
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8.3	42	//NameableArtefact
	43	ComponentList
14.1	44	[[Component>>doc:Glossary.Component.WebHome]]//
2.1	45
14.1	46	Those classes in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:Glossary.Annotation.WebHome]], global identity, multilingual name and multilingual description are derived from //NameableArtefact//. These are:
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8.3	48	//VersionableArtefact
	49	Item//
2.1	50
14.1	51	The classes in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] metamodel which require [[annotations>>doc:Glossary.Annotation.WebHome]], global identity, multilingual name and multilingual description, and versioning are derived from //VersionableArtefact//. These are:
2.1	52
	53	//MaintainableArtefact//
	54
14.1	55	Abstract classes which represent information that is maintained by [[Maintenance Agencies>>doc:Glossary.Maintenance agency.WebHome]] all inherit from //MaintainableArtefact//, they also inherit all the features of a //VersionableArtefact//, and are:
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8.3	57	//StructureUsage
	58	Structure
	59	ItemScheme//
2.1	60
	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
14.1	63	Those concrete classes in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] and [[Dataset>>doc: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:
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	65	Dataflow
	66	DataStructureDefinition
	67
14.1	68	The [[component>>doc:Glossary.Component.WebHome]] structures that are lists of lists, inherit directly from //Structure//. A //Structure// contains several lists of [[components>>doc:Glossary.Component.WebHome]]. The concrete class that inherits from //Structure// is:
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	70	DataStructureDefinition
	71
14.1	72	A DataStructureDefinition contains a list of [[dimensions>>doc:Glossary.Dimension.WebHome]], a list of [[measures>>doc:Glossary.Measure.WebHome]] and a list of attributes.
2.1	73
	74	The concrete classes which inherit from //ComponentList// and are subcomponents of the DataStructureDefinition are:
	75
14.1	76	DimensionDescriptor – content is [[Dimension>>doc:Glossary.Dimension.WebHome]] and TimeDimension
	77	DimensionGroupDescriptor – content is an association to [[Dimension>>doc:Glossary.Dimension.WebHome]], TimeDimension
2.1	78	MeasureDescriptor – content is Measure
	79	AttributeDescriptor – content is DataAttribute and an association to MetadataAttribute
	80
14.1	81	The classes that inherit from //[[Component>>doc:Glossary.Component.WebHome]]// are:
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	83	Measure
	84
14.1	85	//DimensionComponent// and thereby its sub classes of [[Dimension>>doc:Glossary.Dimension.WebHome]] and TimeDimension
2.1	86	//Attribute// and thereby its sub classes of DataAttribute and MetadataAttribute
	87
	88	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.
	89
	90	== 5.3 Data Structure Definition – Relationship View ==
	91
	92	=== 5.3.1 Class Diagram ===
	93
15.1	94	(% contenteditable="false" tabindex="-1" %)[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_c415af49.jpg\|\|height="478" width="583"]]
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	96	Figure 28 Relationship class diagram of the Data Structure Definition excluding representation
	97
	98	=== 5.3.2 Explanation of the Diagrams ===
	99
	100	==== 5.3.2.1 Narrative ====
	101
14.1	102	A DataStructureDefinition defines the [[Dimensions>>doc:Glossary.Dimension.WebHome]], TimeDimension, DataAttributes, and [[Measures>>doc:Glossary.Measure.WebHome]], and associated [[Representations>>doc:Glossary.Representation.WebHome]], that comprise the valid structure of data and related [[attributes>>doc:Glossary.Attribute.WebHome]] that are contained in a [[DataSet>>doc:Glossary.Data set.WebHome]], which is defined by a [[Dataflow>>doc: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:Glossary.Component.WebHome]]// within the [[DSD>>doc:Glossary.Data structure definition.WebHome]], as explained below.
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14.1	104	The [[Dataflow>>doc: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:Glossary.Code.WebHome]] used in a [[Dimension>>doc:Glossary.Dimension.WebHome]] (this is covered later in this document – see sections “(% style="color:#e74c3c" %)Constraints(%%)” and “Data Provisioning”). Each [[Dataflow>>doc:Glossary.Dataflow.WebHome]] has a maximum of one DataStructureDefinition specified which defines the structure of any [[DataSets>>doc:Glossary.Data set.WebHome]] to be reported/disseminated.
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14.1	106	There are two types of [[dimensions>>doc:Glossary.Dimension.WebHome]] each having a common association to (% style="color:#e74c3c" %)Concept(%%):
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14.1	108	* [[Dimension>>doc:Glossary.Dimension.WebHome]]
2.1	109	* TimeDimension
	110
14.1	111	Note that DimensionComponent can be any or all its sub classes i.e., [[Dimension>>doc:Glossary.Dimension.WebHome]], TimeDimension.
2.1	112
14.1	113	The //DimensionComponent//, DataAttribute, MetadataAttribute and [[Measure>>doc: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:Glossary.Dimension.WebHome]] (but not TimeDimension) and [[Measure>>doc: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:Glossary.Statistical data and metadata exchange.WebHome]] (% style="color:#e74c3c" %)CONCEPT(%%) ROLES" by the [[SDMX>>doc: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: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.
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14.1	115	The valid values for a //DimensionComponent//, [[Measure>>doc:Glossary.Measure.WebHome]], DataAttribute or MetadataAttribute, when used in this DataStructureDefinition, are defined by the [[Representation>>doc:Glossary.Representation.WebHome]]. This [[Representation>>doc: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:Glossary.Representation.WebHome]] of MetadataAttributes are specified in the corresponding MetadataStructureDefinition, linked by the DataStructureDefinition.
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14.1	117	There will always be a DimensionDescriptor grouping that identifies all of the [[Dimension>>doc:Glossary.Dimension.WebHome]] comprising the full key. Together the [[Dimensions>>doc:Glossary.Dimension.WebHome]] specify the key of an Observation.
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14.1	119	The //DimensionComponent// can optionally be grouped by multiple GroupDimensionDescriptors each of which identifies the group of [[Dimensions>>doc: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:Glossary.Data set.WebHome]] to declare which DataAttributes or MetadataAttributes are reported at this group (% style="color:#e74c3c" %)level(%%) in the [[DataSet>>doc:Glossary.Data set.WebHome]].
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14.1	121	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:Glossary.Time period.WebHome]] of the observation in a [[data set>>doc:Glossary.Data set.WebHome]]. The TimeDimension must contain a valid [[representation>>doc:Glossary.Representation.WebHome]] of time and cannot be coded.
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14.1	123	here can be one or more [[Measures>>doc:Glossary.Measure.WebHome]] under the MeasureDescriptor. [[Measures>>doc:Glossary.Measure.WebHome]] represent the observable phenomena. Each [[Measure>>doc:Glossary.Measure.WebHome]] may have a valid [[representation>>doc:Glossary.Representation.WebHome]], a maxOccurs [[attribute>>doc:Glossary.Attribute.WebHome]] limiting the maximum number of values per [[Measure>>doc:Glossary.Measure.WebHome]] (which may be set to 'unbounded' for unlimited occurrences), as well as a minOccurs [[attribute>>doc:Glossary.Attribute.WebHome]], indicating the minimum required number of values, when the [[Measure>>doc:Glossary.Measure.WebHome]] is reported. If minOccurs or maxOccurs are omitted (they both default to ‘1’), the [[Measure>>doc:Glossary.Measure.WebHome]] is considered to take a single value; otherwise, it is an array. Moreover, the usage [[attribute>>doc:Glossary.Attribute.WebHome]] indicates whether a [[Measure>>doc:Glossary.Measure.WebHome]] must be reported or not, by the corresponding values: mandatory or optional.
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14.1	125	The AttributeDescriptor may contain one or more //[[Attribute>>doc:Glossary.Attribute.WebHome]]//s, i.e., at least one DataAttribute definition or one MetadataAttribute reference.
2.1	126
14.1	127	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: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: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.
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14.1	129	The MetadataAttribute defines [[reference metadata>>doc:Glossary.Reference metadata.WebHome]] that may be collected or disseminated and is grouped together with DataAttribute under the AttributeDescriptor.
2.1	130
14.1	131	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:Glossary.Data set.WebHome]]//. An //AttributeComponent// can be specified as being related to one of the following [[artefacts>>doc:Glossary.Artefact.WebHome]]:
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14.1	133	* All data within the [[dataset>>doc:Glossary.Data set.WebHome]] (DataflowRelationship) – this is equivalent to attaching an [[Attribute>>doc:Glossary.Attribute.WebHome]] to all data within the [[Dataflow>>doc:Glossary.Dataflow.WebHome]].
	134	* [[Dimension>>doc:Glossary.Dimension.WebHome]] or set of [[Dimensions>>doc:Glossary.Dimension.WebHome]] (DimensionRelationship)
	135	* Set of [[Dimensions>>doc:Glossary.Dimension.WebHome]] specified by a GroupKey (GroupRelationship – this is retained for compatibility reasons – or +groupKey of the DimensionRelationship)
2.1	136	* Observation (ObservationRelationship)
14.1	137	* In addition to the positioning of an //AttributeComponent// within a //[[DataSet>>doc:Glossary.Data set.WebHome]]//, another relationship indicates the [[Measure>>doc:Glossary.Measure.WebHome]](s) for which the //AttributeComponent// is reported. Regardless of the position of the //AttributeComponent// within the //[[DataSet>>doc:Glossary.Data set.WebHome]]//, the //AttributeComponent// may concern one, more than one, or all [[Measures>>doc:Glossary.Measure.WebHome]] included in the [[DSD>>doc:Glossary.Data structure definition.WebHome]]. This is expressed using the MeasureRelationship class, which relates a DataAttribute to one or more [[Measures>>doc:Glossary.Measure.WebHome]]. Lack of the MeasureRelationship defaults to a relationship to all [[Measures>>doc:Glossary.Measure.WebHome]].
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15.1	139	(% contenteditable="false" tabindex="-1" %)[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_f235bfd4.jpg\|\|height="542" width="604"]]
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	141	Figure 29: Attribute Attachment Defined in the Data Structure Definition
	142
	143	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.
	144
7.3	145	(% style="width:839.039px" %)
	146	\|Relationship\|(% style="width:384px" %)Meaning\|(% style="width:303px" %)Location in Data Set at which the Attribute is reported
14.1	147	\|DataflowRelationship\|(% style="width:384px" %)The value of the [[attribute>>doc:Glossary.Attribute.WebHome]] is fixed for all data contained in the [[dataset>>doc:Glossary.Data set.WebHome]]. The [[Attribute>>doc:Glossary.Attribute.WebHome]] value applies to all data defined by the underlying [[Dataflow>>doc:Glossary.Dataflow.WebHome]].\|(% style="width:303px" %)The [[attribute>>doc:Glossary.Attribute.WebHome]] is reported at the [[Dataset>>doc:Glossary.Data set.WebHome]] (% style="color:#e74c3c" %)level(%%).
	148	\|[[Dimension>>doc:Glossary.Dimension.WebHome]] (1..n)\|(% style="width:384px" %)The value of the [[attribute>>doc:Glossary.Attribute.WebHome]] will vary with the value(s) of the referenced [[Dimension>>doc:Glossary.Dimension.WebHome]](s). In this case, Group(s) to which the [[attribute>>doc:Glossary.Attribute.WebHome]] should be attached may optionally be specified.\|(% style="width:303px" %)The [[attribute>>doc:Glossary.Attribute.WebHome]] is reported at the lowest (% style="color:#e74c3c" %)level(%%) of the [[Dimension>>doc:Glossary.Dimension.WebHome]] to which the [[Attribute>>doc:Glossary.Attribute.WebHome]] is related, otherwise at the (% style="color:#e74c3c" %)level(%%) of the Group if Attachment Group(s) is specified.
	149	\|Group\|(% style="width:384px" %)The value of the [[Attribute>>doc:Glossary.Attribute.WebHome]] varies with combination of values for all of the [[Dimensions>>doc:Glossary.Dimension.WebHome]] contained in the Group. This is added as a convenience to listing all [[Dimensions>>doc:Glossary.Dimension.WebHome]] and the attachment Group, but should only be used when the [[Attribute>>doc:Glossary.Attribute.WebHome]] value varies based on __all__ Group [[Dimension>>doc:Glossary.Dimension.WebHome]] values.\|(% style="width:303px" %)The [[attribute>>doc:Glossary.Attribute.WebHome]] is reported at the (% style="color:#e74c3c" %)level(%%) of Group.
	150	\|Observation\|(% style="width:384px" %)The value of the [[Attribute>>doc:Glossary.Attribute.WebHome]] varies with the observed value.\|(% style="width:303px" %)The [[attribute>>doc:Glossary.Attribute.WebHome]] is reported at the (% style="color:#e74c3c" %)level(%%) of Observation.
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15.1	152	(% contenteditable="false" tabindex="-1" %)[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_42ff01fb.jpg\|\|height="380" width="590"]]
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	154	Figure 30: Representation of DSD Components
	155
14.1	156	Each of [[Dimension>>doc:Glossary.Dimension.WebHome]], TimeDimension, [[Measure>>doc:Glossary.Measure.WebHome]], DataAttribute and MetadataAttribute can have a [[Representation>>doc:Glossary.Representation.WebHome]] specified (using the localRepresentation association). If this is not specified in the DataStructureDefinition then the [[representation>>doc:Glossary.Representation.WebHome]] specified for (% style="color:#e74c3c" %)Concept(%%) (coreRepresentation) is used. [[Measure>>doc:Glossary.Measure.WebHome]], and DataAttribute may be also represented by multilingual text (as seen in the [[DataSet>>doc:Glossary.Data set.WebHome]] diagram further down). An exception is the MetadataAttribute, where its [[Representation>>doc:Glossary.Representation.WebHome]] is specified in the MetadataStructureDefinition.
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	158	A DataStructureDefinition can be extended to form a derived DataStructureDefinition. This is supported in the StructureMap.
	159
	160	==== 5.3.2.2 Definitions ====
	161
	162	(((
7.4	163	(% style="width:834.039px" %)
9.4	164	\|(% style="width:209px" %)Class\|(% style="width:175px" %)Feature\|(% style="width:454px" %)Description
14.1	165	\|(% style="width:209px" %)StructureUsage\|(% style="width:175px" %) \|(% style="width:454px" %)See “[[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base”.
	166	\|(% style="width:209px" %)[[Dataflow>>doc:Glossary.Dataflow.WebHome]]\|(% style="width:175px" %)(((
2.1	167	Inherits from
	168	//StructureUsage//
13.1	169	)))\|(% style="width:454px" %)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.
14.1	170	\|(% style="width:209px" %) \|(% style="width:175px" %)/structure\|(% style="width:454px" %)Associates a [[Dataflow>>doc:Glossary.Dataflow.WebHome]] to the Data Structure Definition.
13.1	171	\|(% style="width:209px" %)DataStructureDefiniti on\|(% style="width:175px" %) \|(% style="width:454px" %)A collection of metadata (% style="color:#e74c3c" %)concepts(%%), their structure and usage when used to collect or disseminate data.
	172	\|(% style="width:209px" %) \|(% style="width:175px" %)/grouping\|(% style="width:454px" %)An association to a set of metadata (% style="color:#e74c3c" %)concepts(%%) that have an identified structural role in a Data Structure Definition.
9.4	173	\|(% style="width:209px" %)GroupDimensionDescriptor\|(% style="width:175px" %)(((
2.1	174	Inherits from
	175	//ComponentList//
14.1	176	)))\|(% style="width:454px" %)A set of metadata (% style="color:#e74c3c" %)concepts(%%) that define a partial key derived from the [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor in a Data Structure Definition.
	177	\|(% style="width:209px" %) \|(% style="width:175px" %)/components\|(% style="width:454px" %)An association to the [[Dimension>>doc:Glossary.Dimension.WebHome]] [[components>>doc:Glossary.Component.WebHome]] that comprise the group.
9.4	178	\|(% style="width:209px" %)DimensionDescriptor\|(% style="width:175px" %)(((
2.1	179	Inherits from
	180	//ComponentList//
14.1	181	)))\|(% style="width:454px" %)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:Glossary.Data set.WebHome]], uniquely identify a specific observation.
9.4	182	\|(% style="width:209px" %) \|(% style="width:175px" %)/components\|(% style="width:454px" %)(((
14.1	183	An association to the [[Dimension>>doc:Glossary.Dimension.WebHome]] and Time [[Dimension>>doc:Glossary.Dimension.WebHome]] comprising the Key Descriptor.
2.1	184	)))
9.4	185	\|(% style="width:209px" %)AttributeDescriptor\|(% style="width:175px" %)(((
2.1	186	Inherits from
	187	//ComponentList//
14.1	188	)))\|(% style="width:454px" %)A set metadata (% style="color:#e74c3c" %)concepts(%%) that define the [[Attributes>>doc:Glossary.Attribute.WebHome]] of a Data Structure Definition.
	189	\|(% style="width:209px" %) \|(% style="width:175px" %)/[[components>>doc:Glossary.Component.WebHome]]\|(% style="width:454px" %)An association to a Data [[Attribute>>doc:Glossary.Attribute.WebHome]] [[component>>doc:Glossary.Component.WebHome]].
9.4	190	\|(% style="width:209px" %)MeasureDescriptor\|(% style="width:175px" %)(((
2.1	191	Inherits from
	192	//ComponentList//
14.1	193	)))\|(% style="width:454px" %)A metadata (% style="color:#e74c3c" %)concept(%%) that defines the [[Measures>>doc:Glossary.Measure.WebHome]] of a Data Structure Definition.
	194	\|(% style="width:209px" %) \|(% style="width:175px" %)/components\|(% style="width:454px" %)An association to a [[Measure>>doc:Glossary.Measure.WebHome]] [[component>>doc:Glossary.Component.WebHome]].
9.4	195	\|(% style="width:209px" %)//DimensionComponent//\|(% style="width:175px" %)(((
2.1	196	Inherits from
14.1	197	//[[Component>>doc:Glossary.Component.WebHome]]//
2.1	198
14.1	199	Sub class [[Dimension>>doc:Glossary.Dimension.WebHome]]
2.1	200	TimeDimension
14.1	201	)))\|(% style="width:454px" %)An abstract class representing any [[Component>>doc:Glossary.Component.WebHome]] that can be used for identifying observations.
	202	\|(% style="width:209px" %) \|(% style="width:175px" %)order\|(% style="width:454px" %)Specifies the order of the [[Dimension>>doc:Glossary.Dimension.WebHome]] [[Components>>doc:Glossary.Component.WebHome]] within the [[DSD>>doc:Glossary.Data structure definition.WebHome]]. The property is used to indicate the position of the [[Dimension>>doc:Glossary.Dimension.WebHome]] [[Component>>doc:Glossary.Component.WebHome]] and determines the Key for identifying observations, or series. The Time [[Dimension>>doc:Glossary.Dimension.WebHome]], when specified, must be the last within the [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor.
	203	\|(% style="width:209px" %)[[Dimension>>doc:Glossary.Dimension.WebHome]]\|(% style="width:175px" %)(((
2.1	204	Inherits from
	205	//DimensionComponent//
14.1	206	)))\|(% style="width:454px" %)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:Glossary.Economic activity.WebHome]] or a geographical reference area.
	207	\|(% style="width:209px" %) \|(% style="width:175px" %)/role\|(% style="width:454px" %)Association to the (% style="color:#e74c3c" %)Concept(%%) that specifies the role that that the [[Dimension>>doc:Glossary.Dimension.WebHome]] plays in the Data Structure Definition.
	208	\|(% style="width:209px" %) \|(% style="width:175px" %)/conceptIdentity\|(% style="width:454px" %)An association to the metadata (% style="color:#e74c3c" %)concept(%%) which defines the semantic of the [[Dimension>>doc:Glossary.Dimension.WebHome]].
9.4	209	\|(% style="width:209px" %)TimeDimension\|(% style="width:175px" %)(((
2.1	210	Inherits from
	211	//DimensionComponent//
14.1	212	)))\|(% style="width:454px" %)A metadata (% style="color:#e74c3c" %)concept(%%) that identifies the [[component>>doc:Glossary.Component.WebHome]] in the key structure that has the role of “time”.
9.4	213	\|(% style="width:209px" %)DataAttribute\|(% style="width:175px" %)(((
2.1	214	Inherits from
14.1	215	//[[Component>>doc:Glossary.Component.WebHome]]//
7.4	216	)))\|(% style="width:454px" %)A characteristic of an object or entity.
14.1	217	\|(% style="width:209px" %) \|(% style="width:175px" %)/role\|(% style="width:454px" %)Association to the (% style="color:#e74c3c" %)Concept(%%) that specifies the role that that the Data [[Attribute>>doc:Glossary.Attribute.WebHome]] plays in the Data Structure Definition.
	218	\|(% style="width:209px" %) \|(% style="width:175px" %)minOccurs\|(% style="width:454px" %)Defines the minimum required occurrences for the [[Attribute>>doc:Glossary.Attribute.WebHome]]. When equals to zero, the [[Attribute>>doc:Glossary.Attribute.WebHome]] is conditional.
	219	\|(% style="width:209px" %) \|(% style="width:175px" %)maxOccurs\|(% style="width:454px" %)Defines the maximum allowed occurrences for the [[Attribute>>doc:Glossary.Attribute.WebHome]].
	220	\|(% style="width:209px" %) \|(% style="width:175px" %)usage\|(% style="width:454px" %)Defines whether a Data [[Attribute>>doc:Glossary.Attribute.WebHome]] must be reported or not.
	221	\|(% style="width:209px" %) \|(% style="width:175px" %)+relatedTo\|(% style="width:454px" %)Association to an [[Attribute>>doc:Glossary.Attribute.WebHome]] Relationship.
	222	\|(% style="width:209px" %) \|(% style="width:175px" %)/conceptIdentity\|(% style="width:454px" %)An association to the (% style="color:#e74c3c" %)Concept(%%) which defines the semantic of the [[component>>doc:Glossary.Component.WebHome]].
	223	\|(% style="width:209px" %)[[Measure>>doc:Glossary.Measure.WebHome]]\|(% style="width:175px" %)(((
2.1	224	Inherits from
14.1	225	//[[Component>>doc:Glossary.Component.WebHome]]//
	226	)))\|(% style="width:454px" %)The metadata (% style="color:#e74c3c" %)concept(%%) that is the phenomenon to be measured in a [[data set>>doc:Glossary.Data set.WebHome]]. In a [[data set>>doc:Glossary.Data set.WebHome]] the instance of the [[measure>>doc:Glossary.Measure.WebHome]] is often called the observation.
	227	\|(% style="width:209px" %) \|(% style="width:175px" %)/conceptIdentity\|(% style="width:454px" %)An association to the (% style="color:#e74c3c" %)Concept(%%) which carries the values of the [[measures>>doc:Glossary.Measure.WebHome]].
	228	\|(% style="width:209px" %) \|(% style="width:175px" %)minOccurs\|(% style="width:454px" %)Defines the minimum required occurrences for the [[Measure>>doc:Glossary.Measure.WebHome]]. When equals to zero, the [[Measure>>doc:Glossary.Measure.WebHome]] is conditional.
	229	\|(% style="width:209px" %) \|(% style="width:175px" %)maxOccurs\|(% style="width:454px" %)Defines the maximum allowed occurrences for the [[Measure>>doc:Glossary.Measure.WebHome]].
	230	\|(% style="width:209px" %) \|(% style="width:175px" %)usage\|(% style="width:454px" %)Defines whether a [[Measure>>doc:Glossary.Measure.WebHome]] must be reported or not.
9.4	231	\|(% style="width:209px" %)//AttributeRelationship//\|(% style="width:175px" %)(((
2.1	232	Abstract Class
	233	Sub classes
	234	ObservationRelationship
9.4	235	GroupRelationship DimensionRelationship
14.1	236	)))\|(% style="width:454px" %)Specifies the type of [[artefact>>doc:Glossary.Artefact.WebHome]] to which a Data [[Attribute>>doc:Glossary.Attribute.WebHome]] can be attached in a [[Data Set>>doc:Glossary.Data set.WebHome]].
	237	\|(% style="width:209px" %)ObservationRelationship\|(% style="width:175px" %) \|(% style="width:454px" %)The Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is related to the observations of the [[Data Set>>doc:Glossary.Data set.WebHome]].
	238	\|(% style="width:209px" %)GroupRelationship\|(% style="width:175px" %) \|(% style="width:454px" %)The Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is related to a Group [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor construct.
	239	\|(% style="width:209px" %) \|(% style="width:175px" %)+groupKey\|(% style="width:454px" %)An association to the Group [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor
	240	\|(% style="width:209px" %)DimensionRelationship\|(% style="width:175px" %) \|(% style="width:454px" %)The Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is related to a set of [[Dimensions>>doc:Glossary.Dimension.WebHome]].
	241	\|(% style="width:209px" %) \|(% style="width:175px" %)+dimensions\|(% style="width:454px" %)Association to the set of [[Dimensions>>doc:Glossary.Dimension.WebHome]] to which the Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is related.
	242	\|(% style="width:209px" %) \|(% style="width:175px" %)+groupKey\|(% style="width:454px" %)Association to the Group [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor which specifies the set of [[Dimensions>>doc:Glossary.Dimension.WebHome]] to which the Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is attached.
	243	\|(% style="width:209px" %)MeasureRelationship\|(% style="width:175px" %) \|(% style="width:454px" %)The [[Measures>>doc:Glossary.Measure.WebHome]] that a Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is reported for.
	244	\|(% style="width:209px" %) \|(% style="width:175px" %)+measures\|(% style="width:454px" %)Association to the set of [[Measures>>doc:Glossary.Measure.WebHome]] to which a Data [[Attribute>>doc:Glossary.Attribute.WebHome]] is related to.
	245	\|(% style="width:209px" %)SentinelValuesType\|(% style="width:175px" %) \|(% style="width:454px" %)This [[facet>>doc:Glossary.Facet.WebHome]] indicates that an [[Attribute>>doc:Glossary.Attribute.WebHome]] or a [[Measure>>doc: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:Glossary.Facet.WebHome]].
	246	\|(% style="width:209px" %)SentinelValue\|(% style="width:175px" %) \|(% style="width:454px" %)A value that has a special meaning within the text format [[representation>>doc:Glossary.Representation.WebHome]] of the [[Component>>doc:Glossary.Component.WebHome]].
9.4	247	\|(% style="width:209px" %) \|(% style="width:175px" %)+name\|(% style="width:454px" %)An association of a Sentinel Value to a multilingual name.
	248	\|(% style="width:209px" %) \|(% style="width:175px" %)+description\|(% style="width:454px" %)An association of a Sentinel Value to a multilingual description.
2.1	249	)))
	250
14.1	251	The explanation of the classes, [[attributes>>doc:Glossary.Attribute.WebHome]], and associations comprising the [[Representation>>doc:Glossary.Representation.WebHome]] is described in the section on the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base.
2.1	252
	253	== 5.4 Data Set – Relationship View ==
	254
	255	=== 5.4.1 Context ===
	256
14.1	257	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.
2.1	258
	259	=== 5.4.2 Class Diagram ===
	260
15.1	261	(% contenteditable="false" tabindex="-1" %)[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_78f5c87f.jpg\|\|height="822" width="535"]]
2.1	262
	263	Figure 31: Class Diagram of the Data Set
	264
	265	=== 5.4.3 Explanation of the Diagram ===
	266
	267	==== 5.4.3.1 Narrative – Data Set ====
	268
14.1	269	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.
2.1	270
14.1	271	An organisation playing the role of DataProvider can be responsible for one or more //[[DataSet>>doc:Glossary.Data set.WebHome]]//.
2.1	272
14.1	273	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 (% style="color:#e74c3c" %)level(%%).
2.1	274
14.1	275	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
2.1	276
14.1	277	//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.
2.1	278
14.1	279	The //Observation// can be the value(s) of the variable(s) being measured for the (% style="color:#e74c3c" %)Concept(%%) associated to the Measure(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 (% style="color:#e74c3c" %)Level(%%)”. Any [[Dimension>>doc:Glossary.Dimension.WebHome]] can be specified as being the “[[Dimension>>doc: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: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]]//).
2.1	280
14.1	281	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.
2.1	282
	283	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).
	284
14.1	285	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 (% 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: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.
2.1	286
14.1	287	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(%%) and the objects to which these metadata can be associated (attached) are defined in the DataStructureDefinition and the linked MetadataStructureDefinition.
2.1	288
	289	The //AttributeValue// links to the object type (SeriesKey, GroupKey, Observation) to which it is associated.
	290
	291	==== 5.4.3.2 Definitions ====
	292
7.5	293	(% style="width:812.039px" %)
9.1	294	\|(% style="width:147px" %)Class\|(% style="width:246px" %)Feature\|(% style="width:395px" %)Description
14.1	295	\|(% style="width:147px" %)//[[DataSet>>doc:Glossary.Data set.WebHome]]//\|(% style="width:246px" %)(((
2.1	296	Abstract Class
	297	Sub classes
	298	StructureSpecificData
	299	Set
9.1	300	)))\|(% style="width:395px" %)An organised collection of data.
14.1	301	\|(% style="width:147px" %) \|(% style="width:246px" %)reportingBegin\|(% style="width:395px" %)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.
	302	\|(% style="width:147px" %) \|(% style="width:246px" %)reportingEnd\|(% style="width:395px" %)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.
	303	\|(% style="width:147px" %) \|(% style="width:246px" %)dataExtractionDate\|(% style="width:395px" %)A specific [[time period>>doc:Glossary.Time period.WebHome]] that identifies the date and time that the data are extracted from a data source.
	304	\|(% style="width:147px" %) \|(% style="width:246px" %)validFrom\|(% style="width:395px" %)Indicates the inclusive start time indicating the validity of the information in the [[data set>>doc:Glossary.Data set.WebHome]].
	305	\|(% style="width:147px" %) \|(% style="width:246px" %)validTo\|(% style="width:395px" %)Indicates the inclusive end time indicating the validity of the information in the [[data set>>doc:Glossary.Data set.WebHome]].
9.1	306	\|(% style="width:147px" %) \|(% style="width:246px" %)publicationYear\|(% style="width:395px" %)Specifies the year of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
	307	\|(% style="width:147px" %) \|(% style="width:246px" %)publicationPeriod\|(% style="width:395px" %)Specifies the period of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
14.1	308	\|(% style="width:147px" %) \|(% style="width:246px" %)setId\|(% style="width:395px" %)Provides an identification of the [[data set>>doc:Glossary.Data set.WebHome]].
9.1	309	\|(% style="width:147px" %) \|(% style="width:246px" %)action\|(% style="width:395px" %)Defines the action to be taken by the recipient system (information, append, replace, delete)
14.1	310	\|(% style="width:147px" %) \|(% style="width:246px" %)describedBy\|(% style="width:395px" %)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]].
	311	\|(% style="width:147px" %) \|(% style="width:246px" %)+structuredBy\|(% style="width:395px" %)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	\|(% style="width:147px" %) \|(% style="width:246px" %)+publishedBy\|(% style="width:395px" %)Associates the [[Data Provider>>doc:Glossary.Data provider.WebHome]] that reports/publishes the data.
	313	\|(% style="width:147px" %)StructureSpecificDataSet\|(% style="width:246px" %) \|(% style="width:395px" %)An XML specific data format structure that contains data corresponding to one specific [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
9.1	314	\|(% style="width:147px" %)//Key//\|(% style="width:246px" %)(((
2.1	315	Abstract class Sub classes
	316	SeriesKey
	317	GroupKey
14.1	318	)))\|(% style="width:395px" %)Comprises the cross product of values of [[dimensions>>doc:Glossary.Dimension.WebHome]] that identify uniquely an Observation.
9.1	319	\|(% style="width:147px" %) \|(% style="width:246px" %)keyValues\|(% style="width:395px" %)Association to the individual Key Values that comprise the Key.
14.1	320	\|(% style="width:147px" %) \|(% style="width:246px" %)+attachedAttribute\|(% style="width:395px" %)Association to the [[Attribute>>doc:Glossary.Attribute.WebHome]] Values relating to the [[Series Key>>doc:Glossary.Series key.WebHome]] or Group Key.
9.1	321	\|(% style="width:147px" %)//KeyValue//\|(% style="width:246px" %)(((
2.1	322	Abstract class Sub classes
	323	TimeKeyValue
	324	CodedKeyValue
	325	UncodedKeyValue
14.1	326	)))\|(% style="width:395px" %)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]].
9.1	327	\|(% style="width:147px" %) \|(% style="width:246px" %)+valueFor\|(% style="width:395px" %)(((
14.1	328	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.
	329	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]].
2.1	330	)))
9.1	331	\|(% style="width:147px" %)TimeKeyValue\|(% style="width:246px" %)(((
2.1	332	Inherits from
	333	//KeyValue//
14.1	334	)))\|(% style="width:395px" %)The value of the Time [[Dimension>>doc:Glossary.Dimension.WebHome]] [[component>>doc:Glossary.Component.WebHome]] of the key.
9.1	335	\|(% style="width:147px" %)CodedKeyValue\|(% style="width:246px" %)(((
2.1	336	Inherits from
	337	//KeyValue//
14.1	338	)))\|(% style="width:395px" %)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.
	339	\|(% style="width:147px" %) \|(% style="width:246px" %)+valueOf\|(% style="width:395px" %)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.
9.1	340	\|(% style="width:147px" %)UnCodedKeyValue\|(% style="width:246px" %)(((
2.1	341	Inherits from
	342	//KeyValue//
14.1	343	)))\|(% style="width:395px" %)The value of an uncoded [[component>>doc:Glossary.Component.WebHome]] of the key.
	344	\|(% style="width:147px" %) \|(% style="width:246px" %)value\|(% style="width:395px" %)The value of the key [[component>>doc:Glossary.Component.WebHome]].
	345	\|(% style="width:147px" %) \|(% style="width:246px" %)startTime\|(% style="width:395px" %)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).
9.1	346	\|(% style="width:147px" %)GroupKey\|(% style="width:246px" %)(((
2.1	347	Inherits from
	348	//Key//
14.1	349	)))\|(% style="width:395px" %)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.
	350	\|(% style="width:147px" %) \|(% style="width:246px" %)+describedBy\|(% style="width:395px" %)Associates the Group [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
9.1	351	\|(% style="width:147px" %)SeriesKey\|(% style="width:246px" %)(((
2.1	352	Inherits from
	353	//Key//
14.1	354	)))\|(% style="width:395px" %)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.
	355	\|(% style="width:147px" %) \|(% style="width:246px" %)+describedBy\|(% style="width:395px" %)Associates the [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
9.1	356	\|(% style="width:147px" %)Observation\|(% style="width:246px" %) \|(% style="width:395px" %)The value(s) of the observed phenomenon in the context of the Key Values comprising the key.
	357	\|(% style="width:147px" %) \|(% style="width:246px" %)+valueFor\|(% style="width:395px" %)(((
14.1	358	Associates the [[Measure>>doc:Glossary.Measure.WebHome]](s) defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
2.1	359
14.1	360	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.
2.1	361	)))
14.1	362	\|(% style="width:147px" %) \|(% style="width:246px" %)+attachedAttribute\|(% style="width:395px" %)Association to the [[Attribute>>doc:Glossary.Attribute.WebHome]] Values relating to the Observation.
	363	\|(% style="width:147px" %) \|(% style="width:246px" %)+observationDimension\|(% style="width:395px" %)Association to the Key Value that holds the value of the “[[Dimension>>doc:Glossary.Dimension.WebHome]] at the Observation Level”.
9.1	364	\|(% style="width:147px" %)//ObservationValue//\|(% style="width:246px" %)(((
2.1	365	Abstract class
	366	Sub classes
9.1	367	//UncodedObservationValue//
2.1	368	CodedObservation
9.1	369	)))\|(% style="width:395px" %)
10.1	370	\|(% style="width:147px" %)//UncodedObservationValue//\|(% style="width:246px" %)(((
2.1	371	Abstract class
	372	Inherits from
	373	//ObservationValue//
	374	Sub classes
9.1	375	OtherUncodedMeasureValue
2.1	376	TextMeasureValue
9.1	377	)))\|(% style="width:395px" %)
10.1	378	\|(% style="width:147px" %)OtherUncodedMeasureValue\|(% style="width:246px" %)(((
2.1	379	Inherits from
	380
9.1	381	//UncodedObservationValue//
	382	)))\|(% style="width:395px" %)An observation that has a text value.
	383	\|(% style="width:147px" %) \|(% style="width:246px" %)value\|(% style="width:395px" %)The value of the Uncoded Observation.
14.1	384	\|(% style="width:147px" %) \|(% style="width:246px" %)startTime\|(% style="width:395px" %)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).
9.1	385	\|(% style="width:147px" %)TextMeasureValue\|(% style="width:246px" %)(((
2.1	386	Inherits from
9.1	387	//UncodedObservationValue//
	388	)))\|(% style="width:395px" %)An observation that has a localised text value
	389	\|(% style="width:147px" %) \|(% style="width:246px" %)text\|(% style="width:395px" %)The localised text values.
	390	\|(% style="width:147px" %)CodedObservation\|(% style="width:246px" %)(((
2.1	391	Inherits from
	392	//ObservationValue//
14.1	393	)))\|(% style="width:395px" %)An Observation that takes its value from a [[code>>doc:Glossary.Code.WebHome]] in a [[Code list>>doc:Glossary.Code list.WebHome]].
	394	\|(% style="width:147px" %) \|(% style="width:246px" %)+valueOf\|(% style="width:395px" %)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.
9.1	395	\|(% style="width:147px" %)//AttributeValue//\|(% style="width:246px" %)(((
2.1	396	Abstract class
	397	Sub classes
9.1	398	//DataAttributeValue// //MetadataAttributeValue//
14.1	399	)))\|(% style="width:395px" %)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]].
9.1	400	\|(% style="width:147px" %)//DataAttributeValue//\|(% style="width:246px" %)(((
2.1	401	Abstract class
	402	Inherits from
	403	//AttributeValue//
	404	Sub classes
9.1	405	//UncodedAttributeValue
	406	CodedAttributeValue//
14.1	407	)))\|(% style="width:395px" %)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]].
9.1	408	\|(% style="width:147px" %) \|(% style="width:246px" %)+valueFor\|(% style="width:395px" %)(((
14.1	409	Association to the Data [[Attribute>>doc:Glossary.Attribute.WebHome]] defined in the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]. Note that this is conceptual association as the (% style="color:#e74c3c" %)Concept(%%) is identified explicitly in the [[data set>>doc:Glossary.Data set.WebHome]].
	410	The source multiplicity (1..*) indicates the possibility to provide more than one values for a Data [[Attribute>>doc:Glossary.Attribute.WebHome]], if the latter allows it.
2.1	411	)))
10.1	412	\|(% style="width:147px" %)//MetadataAttributeValue//\|(% style="width:246px" %)(((
9.1	413	(explained further in section “Metadata Set”)
	414	)))\|(% style="width:395px" %)(((
14.1	415	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
2.1	416
	417	Definition
	418	)))
10.1	419	\|(% style="width:147px" %)//UncodedAttributeValue//\|(% style="width:246px" %)(((
2.1	420	Inherits from
	421	//AttributeValue//
	422	Sub classes
	423	OtherUncodedAttribute Value
	424	TextAttributeValue
9.1	425	)))\|(% style="width:395px" %)
10.1	426	\|(% style="width:147px" %)OtherUncodedAttributeValue\|(% style="width:246px" %)(((
2.1	427	Inherits from
9.1	428	//UncodedObservationValue//
14.1	429	)))\|(% style="width:395px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] value that has a text value
	430	\|(% style="width:147px" %) \|(% style="width:246px" %)value\|(% style="width:395px" %)The value of the Uncoded [[attribute>>doc:Glossary.Attribute.WebHome]].
	431	\|(% style="width:147px" %) \|(% style="width:246px" %)startTime\|(% style="width:395px" %)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).
10.1	432	\|(% style="width:147px" %)TextAttributeValue\|(% style="width:246px" %)(((
2.1	433	Inherits from
	434	//UncodedAttributeValue//
14.1	435	)))\|(% style="width:395px" %)An [[attribute>>doc:Glossary.Attribute.WebHome]] that has a localised text value
9.1	436	\|(% style="width:147px" %) \|(% style="width:246px" %)text\|(% style="width:395px" %)The localised text values.
10.1	437	\|(% style="width:147px" %)CodedAttributeValue\|(% style="width:246px" %)(((
2.1	438	Inherits from
	439	//AttributeValue//
14.1	440	)))\|(% style="width:395px" %)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]].
	441	\|(% style="width:147px" %) \|(% style="width:246px" %)+valueOf\|(% style="width:395px" %)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.
2.1	442
7.2	443