Wiki source code of 10 Constraints

Version 13.1 by Artur K. on 2025/07/14 10:19

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6.2	1	{{box title="Contents"}}
	2	{{toc/}}
	3	{{/box}}
2.1	4
	5	== {{id name="_Toc371062"/}}10.1 Scope ==
	6
12.2	7	The scope of this section is to describe the support in the metamodel for specifying both the access to and the content of a [[data source>>doc:sdmx:Glossary.Data source.WebHome]]. The information may be stored in a resource such as a registry for use by applications wishing to locate data and metadata which is available via the Internet. The [[Constraint>>doc:Glossary.Constraint.WebHome]] is also used to specify a sub set of a Codelist which may used as a partial [[code list>>doc:sdmx:Glossary.Code list.WebHome]] which is relevant in the context of the [[artefact>>doc:sdmx:Glossary.Artefact.WebHome]] to which the [[Constraint>>doc:Glossary.Constraint.WebHome]] is attached e.g. [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]], [[Dataflow>>doc:sdmx:Glossary.Dataflow.WebHome]], Provision Agreement.
2.1	8
10.1	9	Note that in this metamodel the term [[data source>>doc:sdmx:Glossary.Data source.WebHome]] refers to both data and metadata sources, and [[data provider>>doc:sdmx:Glossary.Data provider.WebHome]] refers to both data and metadata providers.
2.1	10
10.1	11	A [[data source>>doc:sdmx:Glossary.Data source.WebHome]] may be a simple file of data or metadata (in [[SDMX-ML>>doc:sdmx:Glossary.SDMX-ML.WebHome]] format), or a database or [[metadata repository>>doc:sdmx:Glossary.Metadata repository.WebHome]]. A [[data source>>doc:sdmx:Glossary.Data source.WebHome]] may contain data for many data or [[metadataflows>>doc:sdmx:Glossary.Metadataflow.WebHome]] (called DataflowDefinition, and MetadataflowDefinition in the model), and the mechanisms described in this section allow an organisation to specify precisely the scope of the content of the [[data source>>doc:sdmx:Glossary.Data source.WebHome]] where this [[data source>>doc:sdmx:Glossary.Data source.WebHome]] is registered (SimpleDataSource, QueryDataSource).
2.1	12
	13	The DataflowDefinition and MetadataflowDefinition, themselves may be specified as containing only a sub set of all the possible keys that could be derived from a DataStructureDefinition or MetadataStructureDefinition.
	14
12.2	15	These specifications are called //[[Constraint>>doc:Glossary.Constraint.WebHome]]// in this model.
2.1	16
	17	== {{id name="_Toc371063"/}}10.2 Inheritance ==
	18
	19	=== {{id name="_Toc371064"/}}10.2.1 Class Diagram of Constrainable Artefacts - Inheritance ===
	20
6.2	21	[[image:1747904390682-586.png]]
	22
2.1	23	Figure 37: Inheritance class diagram of constrainable and provisioning artefacts
	24
	25	=== {{id name="_Toc371065"/}}10.2.2 Explanation of the Diagram ===
	26
	27	==== 10.2.2.1 Narrative ====
	28
12.2	29	Any [[artefact>>doc:sdmx:Glossary.Artefact.WebHome]] that is derived from //ConstrainableArtefact// can have [[constraints>>doc:Glossary.Constraint.WebHome]] defined. The [[artefacts>>doc:sdmx:Glossary.Artefact.WebHome]] that can have [[constraint>>doc:Glossary.Constraint.WebHome]] metadata attached are:
2.1	30
	31	* DataflowDefinition
	32	* ProvisionAgreement
10.1	33	* DataProvider – this is restricted to [[release calendar>>doc:sdmx:Glossary.Release policy - release calendar.WebHome]]
2.1	34	* MetadataflowDefinition
	35	* DataStructureDefinition
	36	* MetadataStructureDefinition
10.1	37	* [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]
	38	* SimpleDataSource – this is a registered [[data source>>doc:sdmx:Glossary.Data source.WebHome]] where the registration references the actual [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]] or MetadataSet
2.1	39	* QueryDataSource
	40
12.2	41	Note that, because the [[Constraint>>doc:Glossary.Constraint.WebHome]] can specify a sub set of the [[component>>doc:sdmx:Glossary.Component.WebHome]] values implied by a specific //Structure// (such a specific DataStructureDefinition or specific MetadataStructureDefinition), the //ConstrainableArtefact//s must be associated with a specific //Structure//. Therefore, whilst the [[Constraint>>doc:Glossary.Constraint.WebHome]] itself may not be linked directly to a DataStructureDefinition or MetadataStructureDefinition, the [[artefact>>doc:sdmx:Glossary.Artefact.WebHome]] that it is constraining will be linked to a DataStructureDefinition or MetadataStructureDefinition. As a [[Data Provider>>doc:sdmx:Glossary.Data provider.WebHome]] does not link to any one specific [[DSD>>doc:sdmx:Glossary.Data structure definition.WebHome]] or [[MSD>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] the type of information that can be contained in a [[Constraint>>doc:Glossary.Constraint.WebHome]] linked to a DataProvider is restricted to [[Release Calendar>>doc:sdmx:Glossary.Release policy - release calendar.WebHome]].
2.1	42
	43	== {{id name="_Toc371066"/}}10.3 Constraints ==
	44
	45	=== {{id name="_Toc371067"/}}10.3.1 Relationship Class Diagram – high level view ===
	46
6.3	47	[[image:1747904434659-835.png]]
	48
2.1	49	Figure 38: Relationship class diagram showing constraint metadata
	50
	51	=== {{id name="_Toc371068"/}}10.3.2 Explanation of the Diagram ===
	52
	53	==== 10.3.2.1 Narrative ====
	54
12.2	55	The constraint mechanism allows specific [[constraints>>doc:Glossary.Constraint.WebHome]] to be attached to a //ConstrainableArtefact//. With the exception of ReferencePeriod, and ReleaseCalendar these [[constraints>>doc:Glossary.Constraint.WebHome]] specify a sub set of the total set of values or keys that may be present in any of the ConstrainableArtefacts.
2.1	56
12.2	57	For instance a DataStructureDefinition specifies, for each [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], the list of allowable [[code>>doc:sdmx:Glossary.Code.WebHome]] values. However, a specific DataflowDefinition that uses the DataStructureDefinition may contain only a sub set of the possible range of keys that is theoretically possible from the DataStructureDefinition definition (the total range of possibilities is sometimes called the Cartesian product of the [[dimension>>doc:sdmx:Glossary.Dimension.WebHome]] values). In addition to this, a DataProvider that is capable of supplying data according to the DataflowDefinition has a ProvisionAgreement, and the DataProvider may also wish to supply [[constraint>>doc:Glossary.Constraint.WebHome]] information which may further constrain the range of possibilities in order to describe the data that the provider can supply. It may also be useful to describe the content of a datasource in terms of the KeySets or CubeRegions contained within it.
2.1	58
12.2	59	A //ConstrainableArtefact// can have two types of //[[Constraint>>doc:Glossary.Constraint.WebHome]]//:
2.1	60
12.2	61	1. ContentConstraint – is used solely as a mechanism to specify either the available set of keys (DataKeySet, MetadataKeySet) or set of [[component>>doc:sdmx:Glossary.Component.WebHome]] values (CubeRegion, MetadatTargetRegion) in a //DataSource// such as a [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]] or a database (//QueryDatasource//), or the allowable keys that can be constructed from a DataStructureDefinition. Multiple such [[constraints>>doc:Glossary.Constraint.WebHome]] may be present for a //ConstrainableArtefact//. For instance, there may be a ContentConstraint that specifies the values allowed for the //ConstrainableArtefact //(role is allowableContent) which can be used for validation or for constructing a partial [[code list>>doc:sdmx:Glossary.Code list.WebHome]], whilst another [[constraint>>doc:Glossary.Constraint.WebHome]] can specify the actual content of a data or metadata source (role is actualContent).
10.1	62	1. AttachmentConstraint – is used as a mechanism to define slices of the full set of data and to which metadata can be attached in a [[Data Set>>doc:sdmx:Glossary.Data set.WebHome]] or MetadataSet. These slices can be defined either as a set of keys (KeySet) or a set of [[component>>doc:sdmx:Glossary.Component.WebHome]] values (CubeRegion). There can be many AttachmentConstraints specified for a specific AttachableArtefact.
2.1	63
12.2	64	In addition to (DataKeySet, MetadataKeySet, CubeRegion, MetadataTargetRegion, a [[Constraint>>doc:Glossary.Constraint.WebHome]] can have a ReferencePeriod defining one of more date ranges (ValidityPeriod) specifying the [[time period>>doc:sdmx:Glossary.Time period.WebHome]] for which data or metadata are available in the //ConstrainableArtefact// and a ReleaseCalendar specifying when data are released for publication or reporting.
2.1	65
	66	=== {{id name="_Toc371069"/}}10.3.3 Relationship Class Diagram – Detail ===
	67
6.3	68	[[image:1747904480223-768.png]]
	69
2.1	70	Figure 39: Constraints - Key Set Constraints
	71
6.3	72	[[image:1747904523939-355.png]]
	73
2.1	74	Figure 40: Constraints - Cube Region and Metadata Target Region Constraints
	75
	76	==== 10.3.3.1 Explanation of the Diagram ====
	77
12.2	78	A //[[Constraint>>doc:Glossary.Constraint.WebHome]]// is a //MaintainableArtefact//.
2.1	79
12.2	80	A //[[Constraint>>doc:Glossary.Constraint.WebHome]]// has a choice of two ways of specifying value sub sets:
2.1	81
10.1	82	1. As a set of keys that can be present in the [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]] (DataKeySet) or MetadataSet (MetadataKeySet). Each DataKey or MetadataKey specifies a number of ComponentValues each of which reference a //[[Component>>doc:sdmx:Glossary.Component.WebHome]]// (e.g. [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]], TargetObject). Each ComponentValue is a value that may be present for a //[[Component>>doc:sdmx:Glossary.Component.WebHome]]// of a structure when contained in a [[DataSet>>doc:sdmx:Glossary.Data set.WebHome]] or MetadataSet. The MetadataKeySet must also identify the MetadataTarget as there can be many of each of these in a MetadataStructureDefinition. For the DataKeySet the equivalent identification is not necessary as there is only one DimensionDescriptor and one AttributeDescriptor.
	83	1. As a set of CubeRegions or MetadataTaregetRegions each of which defines a “slice” of the total structure (MemberSelection) in terms of one or more MemberValues that may be present for a //[[Component>>doc:sdmx:Glossary.Component.WebHome]]// of a structure when contained in a //[[DataSet>>doc:sdmx:Glossary.Data set.WebHome]]// or MetadataSet.
2.1	84
12.2	85	The difference between (1) and (2) above is that in (1) a complete key is defined whereas in (2) above the “slice” defines a list of possible values for each of the// [[Component>>doc:sdmx:Glossary.Component.WebHome]]//s but does not specify specific key combinations. In addition, in (1) the association between //[[Component>>doc:sdmx:Glossary.Component.WebHome]]// and DataKeyValue or MetadataKeyValue is constrained to the [[components>>doc:sdmx:Glossary.Component.WebHome]] that comprise the key or identifier, whereas in (2) it can contain other [[component>>doc:sdmx:Glossary.Component.WebHome]] types (such as [[attributes>>doc:sdmx:Glossary.Attribute.WebHome]]). The value in ComponentValue.value and MemberValue.value must be consistent with the //[[Representation>>doc:sdmx:Glossary.Representation.WebHome]]// declared for the //[[Component>>doc:sdmx:Glossary.Component.WebHome]]// in the DataStructureDefinition or MetadataStructureDefinition. Note that in all cases the “operator” on the value is deemed to be “equals”. Furthermore, it is possible in a MemberValue to specify that child values (e.g. child [[codes>>doc:sdmx:Glossary.Code.WebHome]]) are included in the [[constraint>>doc:Glossary.Constraint.WebHome]] by means of the cascadeValues [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]].
2.1	86
12.2	87	It is possible to define for the DataKeySet, DataKey, MetadataKeySet, MetadataKey, CubeRegion, MetadataTargetRegion, and MemberSelection whether the set is included (isIncluded = “true”) or excluded (isIncluded = ”false”) from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition. This [[attribute>>doc:sdmx:Glossary.Attribute.WebHome]] is useful if, for example, only a small sub-set of the possible values are not included in the set, then this smaller sub-set can be defined and excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] . Note that if the child construct is “included: and the parent construct is “excluded” then the child construct is included in the list of constructs that are “excluded”.
2.1	88
6.4	89	==== 10.3.3.2 Definitions ====
2.1	90
7.1	91	(% style="width:987.294px" %)
	92	\|Class\|Feature\|(% style="width:471px" %)Description
10.1	93	\|//Constrainable// //[[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]]//\|(((
2.1	94	Abstract Class Sub classes are:
	95	DataflowDefinition
	96	Metadataflow
	97	Definition
	98	ProvisionAgreement
	99	DataProvider
	100	//QueryDatasource//
	101	SimpleDatasource
	102	DataStructure
	103	Definition
	104	MetadataStructure
	105	Definition
12.2	106	)))\|(% style="width:471px" %)An [[artefact>>doc:sdmx:Glossary.Artefact.WebHome]] that can have [[Constraints>>doc:Glossary.Constraint.WebHome]] specified.
10.1	107	\| \|content\|(% style="width:471px" %)Associates the metadata that constrains the content to be found in a data or metadata source linked to the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]].
	108	\| \|attachment\|(% style="width:471px" %)Associates the metadata that constrains the valid content of a Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] to which metadata may be attached.
12.2	109	\|//[[Constraint>>doc:Glossary.Constraint.WebHome]]//\|(((
2.1	110	Inherits from
	111	//MaintainableArtefact//
	112	Abstract class. Sub classes are:
	113	AttachmentConstraint
	114	ContentConstraint
10.1	115	)))\|(% style="width:471px" %)Specifies a sub set of the definition of the allowable or actual content of a data or metadata source that can be derived from the Structure that defines [[code lists>>doc:sdmx:Glossary.Code list.WebHome]] and other valid content.
	116	\| \|+availableDates\|(% style="width:471px" %)Association to the [[time period>>doc:sdmx:Glossary.Time period.WebHome]] that identifies the time range for which data or metadata are available in the [[data source>>doc:sdmx:Glossary.Data source.WebHome]].
	117	\| \|+dataContentKeys\|(% style="width:471px" %)Association to a sub set of Data Key Sets (i.e. value combinations) that can be derived from the definition of the structure to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked.
	118	\| \|+metadataContentKeys\|(% style="width:471px" %)Association to a sub set of Metdata Key Sets (i.e. value combinations) that can be derived from the definition of the Structure to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linke
	119	\| \|+dataContentRegion\|(% style="width:471px" %)Association to a sub set of [[component>>doc:sdmx:Glossary.Component.WebHome]] values that can be derived from the [[Data Structure Definition>>doc:sdmx:Glossary.Data structure definition.WebHome]] to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked.
	120	\| \|+metadataContentRegion\|(% style="width:471px" %)Association to a sub set of [[component>>doc:sdmx:Glossary.Component.WebHome]] values that can be derived from the [[Metadata Structure Definition>>doc:sdmx:Glossary.Metadata structure definition.WebHome]] to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked.
2.1	121	\|ContentConstraint\|(((
12.2	122	Inherits from //[[Constraint>>doc:Glossary.Constraint.WebHome]]//
	123	)))\|(% style="width:471px" %)Defines a [[Constraint>>doc:Glossary.Constraint.WebHome]] in terms of the content that can be found in data or metadata sources linked to the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] to which this [[constraint>>doc:Glossary.Constraint.WebHome]] is associated.
	124	\| \|+role\|(% style="width:471px" %)Association to the role that the [[Constraint>>doc:Glossary.Constraint.WebHome]] plays
	125	\|ConstraintRole\| \|(% style="width:471px" %)Specifies the way the type of content of a [[Constraint>>doc:Glossary.Constraint.WebHome]] in terms of its purpose.
	126	\| \|allowableContent\|(% style="width:471px" %)The [[Constraint>>doc:Glossary.Constraint.WebHome]] contains a specification of the valid sub set of the [[Component>>doc:sdmx:Glossary.Component.WebHome]] values or keys.
	127	\| \|actualContent\|(% style="width:471px" %)The [[Constraint>>doc:Glossary.Constraint.WebHome]] contains a specification of the actual content of a data or metadata source in terms of the [[Component>>doc:sdmx:Glossary.Component.WebHome]] values or keys in the source.
2.1	128	\|(((
10.1	129	AttachmentConstraint
2.1	130	)))\|(((
12.2	131	Inherits from //[[Constraint>>doc:Glossary.Constraint.WebHome]]//
	132	)))\|(% style="width:471px" %)Defines a [[Constraint>>doc:Glossary.Constraint.WebHome]] in terms of the combination of [[component>>doc:sdmx:Glossary.Component.WebHome]] values that may be found in a [[data source>>doc:sdmx:Glossary.Data source.WebHome]], and to which a Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] may be associated in a structure definition.
7.1	133	\|DataKeySet\| \|(% style="width:471px" %)A set of data keys.
12.2	134	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the Data Key Set is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
7.1	135	\| \|+keys\|(% style="width:471px" %)Association to the Data Keys in the set.
	136	\|MetadataKeySet\| \|(% style="width:471px" %)A set of metadata keys.
12.2	137	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the [[Metadata Key Set>>doc:sdmx:Glossary.Metadata key set.WebHome]] is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
7.1	138	\| \|+keys\|(% style="width:471px" %)Association to the Metadata Keys in the set.
	139	\|DataKey\| \|(% style="width:471px" %)The values of a key in a data set.
12.2	140	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the Data Key is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
10.1	141	\| \|+keyValue\|(% style="width:471px" %)Associates the [[Component>>doc:sdmx:Glossary.Component.WebHome]] Values that comprise the key.
7.1	142	\|MetadataKey\| \|(% style="width:471px" %)The values of a key in a metadata set.
12.2	143	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the Metdadata Key is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
10.1	144	\| \|+keyValue\|(% style="width:471px" %)Associates the [[Component>>doc:sdmx:Glossary.Component.WebHome]] Values that comprise the key.
	145	\|ComponentValue\| \|(% style="width:471px" %)The identification of and value of a [[Component>>doc:sdmx:Glossary.Component.WebHome]] of the key (e.g. [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]])
	146	\| \|value\|(% style="width:471px" %)The value of [[Component>>doc:sdmx:Glossary.Component.WebHome]]
	147	\| \|+valueFor\|(% style="width:471px" %)Association to the [[Component>>doc:sdmx:Glossary.Component.WebHome]] (e.g. [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]]) in the Structure to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked.
	148	\|TimeDimensionValue\| \|(% style="width:471px" %)The value of the Time [[Dimension>>doc:sdmx:Glossary.Dimension.WebHome]] [[component>>doc:sdmx:Glossary.Component.WebHome]].
	149	\| \|timeValue\|(% style="width:471px" %)The value of the [[time period>>doc:sdmx:Glossary.Time period.WebHome]].
7.1	150	\| \|operator\|(% style="width:471px" %)(((
10.1	151	Indicates whether the specified value represents and exact time or [[time period>>doc:sdmx:Glossary.Time period.WebHome]], or whether the value should be handled as a range.
2.1	152	A value of greaterThan or greaterThanOrEqual indicates that the value is the beginning of a range (exclusive or inclusive, respectively).
	153	A value of lessThan or lessThanOrEqual indicates that the value is the end or a range (exclusive or inclusive, respectively).
10.1	154	In the absence of the opposite bound being specified for the range, this bound is to be treated as infinite (e.g. any [[time period>>doc:sdmx:Glossary.Time period.WebHome]] after the beginning of the provided [[time period>>doc:sdmx:Glossary.Time period.WebHome]] for greaterThanOrEqual)
2.1	155	)))
10.1	156	\|CubeRegion\| \|(% style="width:471px" %)A set of [[Components>>doc:sdmx:Glossary.Component.WebHome]] and their values that defines a sub set or “slice” of the total range of possible content of a data structure to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked.
12.2	157	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the Cube Region is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
10.1	158	\| \|+member\|(% style="width:471px" %)Associates the set of [[Components>>doc:sdmx:Glossary.Component.WebHome]] that define the sub set of values.
	159	\|MetadataTargetRegion\| \|(% style="width:471px" %)A set of [[Components>>doc:sdmx:Glossary.Component.WebHome]] and their values that defines a sub set or “slice” of the total range of possible content of a metadata structure to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked.
12.2	160	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the Metadata Target Region is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
10.1	161	\| \|+member\|(% style="width:471px" %)Associates the set of [[Components>>doc:sdmx:Glossary.Component.WebHome]] that define the sub set of values.
	162	\|MemberSelection\| \|(% style="width:471px" %)A set of permissible values for one [[component>>doc:sdmx:Glossary.Component.WebHome]] of the axis.
12.2	163	\| \|isIncluded\|(% style="width:471px" %)Indicates whether the [[Member Selection>>doc:sdmx:Glossary.Member selection.WebHome]] is included in the [[constraint>>doc:Glossary.Constraint.WebHome]] definition or excluded from the [[constraint>>doc:Glossary.Constraint.WebHome]] definition.
10.1	164	\| \|+valuesFor\|(% style="width:471px" %)Association to the [[Component>>doc:sdmx:Glossary.Component.WebHome]] in the Structure to which the Constrainable [[Artefact>>doc:sdmx:Glossary.Artefact.WebHome]] is linked, which defines the valid [[Representation>>doc:sdmx:Glossary.Representation.WebHome]] for the Member Values.
2.1	165	\|SelectionValue\|(((
	166	Abstract class. Sub classes are:
	167	MemberValue
	168	TimeRangeValue
10.1	169	)))\|(% style="width:471px" %)A collection of values for the [[Member Selections>>doc:sdmx:Glossary.Member selection.WebHome]] that, combined with other [[Member Selections>>doc:sdmx:Glossary.Member selection.WebHome]], comprise the value content of the Cube Region.
2.1	170	\|MemberValue\|(((
	171	Inherits from
	172	SelectionValue
10.1	173	)))\|(% style="width:471px" %)A single value of the set of values for the [[Member Selection>>doc:sdmx:Glossary.Member selection.WebHome]].
7.1	174	\| \|value\|(% style="width:471px" %)A value of the member.
10.1	175	\| \|cascadeValues\|(% style="width:471px" %)Indicates that the child nodes of the member are included in the [[Member Selection>>doc:sdmx:Glossary.Member selection.WebHome]] (e.g. child [[codes>>doc:sdmx:Glossary.Code.WebHome]])
2.1	176	\|//TimeRangeValue//\|(((
	177	Inherits from
	178	SelectionValue
	179	Abstract Class
	180	Concrete Classes
	181	BeforePeriod
	182	AfterPeriod
	183	RangePeriod
7.1	184	)))\|(% style="width:471px" %)A time value or values that specifies the date or dates for which the constrained selection is valid.
2.1	185	\|BeforePeriod\|(((
	186	Inherits from
	187	//TimeRangeValue//
7.1	188	)))\|(% style="width:471px" %)The period before which the constrained selection is valid.
	189	\| \|isInclusive\|(% style="width:471px" %)Indication of whether the date is inclusive in the period.
2.1	190	\|AfterPeriod\|(((
	191	Inherits from
	192	//TimeRangeValue//
7.1	193	)))\|(% style="width:471px" %)The period after which the constrained selection is valid.
	194	\| \|isInclusive\|(% style="width:471px" %)Indication of whether the date is inclusive in the period.
	195	\|RangePeriod\| \|(% style="width:471px" %)The start and end periods in a date range.
	196	\| \|+start\|(% style="width:471px" %)Association to the Start Period.
	197	\| \|+end\|(% style="width:471px" %)Association to the End Period.
2.1	198	\|StartPeriod\|(((
	199	Inherits from
	200	//TimeRangeValue//
7.1	201	)))\|(% style="width:471px" %)The period from which the constrained selection is valid.
	202	\| \|isInclusive\|(% style="width:471px" %)Indication of whether the date is inclusive in the period.
2.1	203	\|EndPeriod\|(((
	204	Inherits from
	205	//TimeRangeValue//
7.1	206	)))\|(% style="width:471px" %)The period to which the constrained selection is valid.
	207	\| \|isInclusive\|(% style="width:471px" %)Indication of whether the date is inclusive in the period.
	208	\|ReferencePeriod\| \|(% style="width:471px" %)A set of dates that constrain the content that may be found in a data or metadata set.
	209	\| \|startDate\|(% style="width:471px" %)The start date of the period.
	210	\| \|endDate\|(% style="width:471px" %)The end date of the period.
	211	\|ReleaseCalendar\| \|(% style="width:471px" %)The schedule of publication or reporting of the data or metadata
10.1	212	\| \|periodicity\|(% style="width:471px" %)The [[time period>>doc:sdmx:Glossary.Time period.WebHome]] between the releases of the data or metadata
7.1	213	\| \|offset\|(% style="width:471px" %)Interval between January 1^^st^^ and the first release of the data
	214	\| \|tolerance\|(% style="width:471px" %)Period after which the data or metadata may be deemed late.