Interoperability Basis Platform

== 12.1 Scope ==

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:xwiki: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 are available via the Internet. The (% style="color:#e74c3c" %)//Constraint//(%%) is also used to specify a subset of a Codelist which may be used as a partial Codelist, relevant in the context of the [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] to which the (% style="color:#e74c3c" %)//Constraint//(%%) is attached e.g., DataStructureDefinition, [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]], ProvisionAgreement, MetadataStructureDefinition, [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]], MetadataProvisionAgreement.

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Note that in this metamodel the term [[data source>>doc:xwiki:Glossary.Data source.WebHome]] refers to both data and metadata sources, and [[data provider>>doc:xwiki:Glossary.Data provider.WebHome]] refers to both data and metadata providers.

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A [[data source>>doc:xwiki:Glossary.Data source.WebHome]] may be a simple file of data or metadata (in [[SDMX-ML>>doc:xwiki:Glossary.SDMX-ML.WebHome]], JSON or other format), or a database or [[metadata repository>>doc:xwiki:Glossary.Metadata repository.WebHome]]. A [[data source>>doc:xwiki:Glossary.Data source.WebHome]] may contain data for many data or [[metadata flows>>doc:xwiki:Glossary.Metadataflow.WebHome]] (called [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]], and [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]] 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:xwiki:Glossary.Data source.WebHome]] where this [[data source>>doc:xwiki:Glossary.Data source.WebHome]] is registered (SimpleDataSource, //QueryDataSource//).

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The [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] and [[Metadataflow>>doc:xwiki:Glossary.Metadataflow.WebHome]], themselves may be specified as containing only a subset of all the possible keys that could be derived from a DataStructureDefinition or MetadataStructureDefinition. Respectively, further subsets may be defined within a ProvisionAgreement and MetadataProvisionAgreement.

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These specifications are called (% style="color:#e74c3c" %)//Constraint//(%%) in this model.

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== 12.2 Inheritance ==

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=== 12.2.1 Class Diagram of Constrainable Artefacts - Inheritance ===

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[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_e601fbfd.jpg||height="230" width="622"]]

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**Figure 41: Inheritance class diagram of constrainable and provisioning artefacts**

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=== 12.2.2 Explanation of the Diagram ===

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==== 12.2.2.1 Narrative ====

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Any [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] that inherits from the //ConstrainableArtefact// interface can have (% style="color:#e74c3c" %)constraints(%%) defined. The [[artefacts>>doc:xwiki:Glossary.Artefact.WebHome]] that can have (% style="color:#e74c3c" %)constraint(%%) metadata attached are:

Dataflow

ProvisionAgreement

DataProvider – this is restricted to release calendar

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DataStructureDefinition

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Metadataflow

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MetaDataProvider – this is restricted to release calendar

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MetadataProvisionAgreement

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MetadataSetMetadataStructureDefinition

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SimpleDataSource – this is a registered [[data source>>doc:xwiki:Glossary.Data source.WebHome]] where the registration references the actual [[Data Set>>doc:xwiki:Glossary.Data set.WebHome]] or Metadata Set

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//QueryDataSource//

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Note that, because the (% style="color:#e74c3c" %)//Constraint//(%%) can specify a subset of the [[component>>doc:xwiki:Glossary.Component.WebHome]] values implied by a specific //Structure// (such as a specific DataStructureDefinition or specific MetadataStructureDefinition), the //ConstrainableArtefact//s must be associated with a specific //Structure//. Therefore, whilst the (% style="color:#e74c3c" %)//Constraint//(%%) itself may not be linked directly to a DataStructureDefinition or MetadataStructureDefinition, the [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] that it is constraining will be linked to a DataStructureDefinition or MetadataStructureDefinition. As a DataProvider or a MetadataProvider does not link to any one specific [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]] or [[MSD>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] the type of information that can be contained in a (% style="color:#e74c3c" %)Constraint(%%) linked to a DataProvider/MetadataProvider is restricted to ReleaseCalendar.

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== 12.3 Constraints ==

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=== 12.3.1 Relationship Class Diagram – high level view ===

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[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_24db726f.jpg||height="332" width="610"]]

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**Figure 42: Relationship class diagram showing constraint metadata**

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=== 12.3.2 Explanation of the Diagram ===

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==== 12.3.2.1 Narrative ====

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The (% style="color:#e74c3c" %)constraint(%%) mechanism allows specific (% style="color:#e74c3c" %)constraints(%%) to be attached to a //ConstrainableArtefact//. With the exception of ReleaseCalendar these (% style="color:#e74c3c" %)constraints(%%) specify a subset of the total set of values or keys that may be present in any of the //ConstrainableArtefacts//.

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For instance, a DataStructureDefinition specifies, for each [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]], the list of allowable [[code>>doc:xwiki:Glossary.Code.WebHome]] values. However, a specific [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] that uses the DataStructureDefinition may contain only a subset 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:xwiki:Glossary.Dimension.WebHome]] values). In addition to this, a DataProvider that is capable of supplying data according to the [[Dataflow>>doc:xwiki:Glossary.Dataflow.WebHome]] has a ProvisionAgreement, and the DataProvider may also wish to supply (% style="color:#e74c3c" %)constraint(%%) 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 [[data source>>doc:xwiki:Glossary.Data source.WebHome]] in terms of the KeySets or CubeRegions contained within it.

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A //ConstrainableArtefact// can have two types of (% style="color:#e74c3c" %)//Constraint//(%%)s:

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1. DataConstraint – is used as a mechanism to specify, either the available set of keys (DataKeySet), or set of [[component>>doc:xwiki:Glossary.Component.WebHome]] values (CubeRegion) in a //DataSource// such as a Simpledatasource or a database (//QueryDatasource//), or the allowable keys that can be constructed from a DataStructureDefinition. Multiple such DataConstraints may be present for a //ConstrainableArtefact//. For instance, there may be a DataConstraint 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:xwiki:Glossary.Code list.WebHome]] for one [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]], while another provides the validation for another [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] within the same DSD.

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1. MetadataConstraint – is used as a mechanism to specify a set of [[component>>doc:xwiki:Glossary.Component.WebHome]] values (MetadatTargetRegion) in a //DataSource// such as a MetadataSet or a database (//QueryDatasource//). Multiple such MetadataConstraints may be present for a //ConstrainableArtefact//. For instance, there may be a MetadataConstraint 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:xwiki:Glossary.Code list.WebHome]], whilst another MetadataConstraint can specify the actual content of a metadata source (role is actualContent).

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In addition to DataKeySet and/or CubeRegion/MetadataTargetRegion a (% style="color:#e74c3c" %)Constraint(%%) can have a ReleaseCalendar specifying when data or metadata are released for publication or reporting.

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Note also that another possible type of a DataConstraint is available; that is a DataConstraint with the role of actualContent where it describes the data that an [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] Web Service contains. This type of DataConstraint is not maintained in a Registry and is always a response to the data availability [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] REST API. Thus, its identification is autogenerated by the service responding to a data availability request.

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=== 12.3.3 Relationship Class Diagram – Detail ===

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[[image:SDMX 3-0-0 SECTION 2 FINAL-1.0 (1)_en_d166f6ab.jpg||height="708" width="619"]]

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**Figure 43: Constraints – Key Set, Cube Region and Metadata Target Region**

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==== 12.3.3.1 Explanation of the Diagram ====

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A (% style="color:#e74c3c" %)//Constraint//(%%) is a //MaintainableArtefact//.

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A DataConstraint has a choice of two ways of specifying value subsets:

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1. As a set of keys that can be present in the //[[DataSet>>doc:xwiki:Glossary.Data set.WebHome]]// (DataKeySet). Each DataKey specifies a number of ComponentValues each of which reference a //[[Component>>doc:xwiki:Glossary.Component.WebHome]]// (e.g., [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]], DataAttribute). Each ComponentValue is a value that may be present for a //[[Component>>doc:xwiki:Glossary.Component.WebHome]]// of a structure when contained in a //[[DataSet>>doc:xwiki:Glossary.Data set.WebHome]]//. In addition, each DataKeySet may also include MemberSelections for AttributeComponents or [[Measures>>doc:xwiki:Glossary.Measure.WebHome]].

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1. As a set of CubeRegions 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:xwiki:Glossary.Component.WebHome]]// of a structure when contained in a //[[DataSet>>doc:xwiki:Glossary.Data set.WebHome]]//.

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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:xwiki:Glossary.Component.WebHome]]//s but does not specify specific key combinations. In addition, in (1) the association between //[[Component>>doc:xwiki:Glossary.Component.WebHome]]// and DataKeyValue is constrained to the [[components>>doc:xwiki:Glossary.Component.WebHome]] that comprise the key, whereas in (2) it can contain other [[component>>doc:xwiki:Glossary.Component.WebHome]] types (such as AttributeComponents or [[Measures>>doc:xwiki:Glossary.Measure.WebHome]]). By adding MemberSelections to the DataKeySets of (1), AttributeComponents and [[Measures>>doc:xwiki:Glossary.Measure.WebHome]] are constrained for the related DataKeys.

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A MetadataConstraint has only one way of specifying value subsets:

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~1. As a set of MetadataTargetRegions 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:xwiki:Glossary.Component.WebHome]]// of a structure when contained in a MetadataSet.

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In both CubeRegion and MetadataTargetRegion, the value in ComponentValue.value and MemberValue.value must be consistent with the //[[Representation>>doc:xwiki:Glossary.Representation.WebHome]]// declared for the //[[Component>>doc:xwiki:Glossary.Component.WebHome]]// in the DataStructureDefinition ([[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] or DataAttribute) or MetadataStructureDefinition (MetadataAttribute). Note that in all cases the "operator" on the value is deemed to be "equals", unless the wildcard character is used '%'. In the latter case the "operation" is a partial matching, where the percentage character ('%') may match zero or more characters. Furthermore, it is possible in a MemberValue to specify that child values (e.g., child [[codes>>doc:xwiki:Glossary.Code.WebHome]]) are included in the (% style="color:#e74c3c" %)Constraint(%%) by means of the cascadeValues [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]]. The latter may take the following values:

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* "true": all children are included,

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* "false" (default), or

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* " excludeRoot", where all children are included, and the root [[Code>>doc:xwiki:Glossary.Code.WebHome]] is excluded (i.e. the referenced [[Code>>doc:xwiki:Glossary.Code.WebHome]]).

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It is possible to define for the DataKeySet, DataKey, CubeRegion, MetadataTargetRegion and MemberSelection whether the set is included (isIncluded = "true", default) or excluded (isIncluded = "false") from the (% style="color:#e74c3c" %)Constraint(%%) definition. This [[attribute>>doc:xwiki: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 (% style="color:#e74c3c" %)constraint(%%). 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”.

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In any MemberSelection that the corresponding //[[Component>>doc:xwiki:Glossary.Component.WebHome]]// was using Codelist with extensions, it is possible to remove the prefix that has been used, in order to refer to the original [[Codes>>doc:xwiki:Glossary.Code.WebHome]]. This is achieved via property removePrefix, which defaults to “false”.

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In DataKeys and MemberValues it is possible, via the validFrom and validTo properties, to set a validity period for which the selected key or value is constrained.

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==== 12.3.3.2 Definitions ====

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(% style="width:908.294px" %)

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|**Class**|**Feature**|(% style="width:442px" %)**Description**

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|//ConstrainableArtefact//|(((

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Abstract Class Sub classes are:

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Dataflow

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DataProvider

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DataStructureDefinition

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Metadataflow

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MetadataProvisionAgreement

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MetadataSet

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MetadataStructureDefinition

ProvisionAgreement

//QueryDatasource//

SimpleDatasource

)))|(% style="width:442px" %)An [[artefact>>doc:xwiki:Glossary.Artefact.WebHome]] that can have (% style="color:#e74c3c" %)Constraints(%%) specified.

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| |content|(% style="width:442px" %)Associates the metadata that constrains the content to be found in a data or metadata source linked to the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]].

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|(%%)(% style="color:#e74c3c" %)//Constraint//|(((

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Inherits from

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//MaintainableArtefact//

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Abstract class Sub classes are:

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DataConstraint

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MetadataConstraint

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)))|(% style="width:442px" %)Specifies a subset 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:xwiki:Glossary.Code list.WebHome]] and other valid content.

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| |+dataContentKeys|(% style="width:442px" %)(((

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Association to a subset of Data

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Key Sets (i.e., value combinations) that can be derived from the definition of the structure to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked.

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)))

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| |+dataContentRegion|(% style="width:442px" %)(((

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Association to a subset of [[component>>doc:xwiki:Glossary.Component.WebHome]] values that can be derived from the Data Structure

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Definition to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked.

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)))

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| |+metadataContentRegion|(% style="width:442px" %)Association to a subset of [[component>>doc:xwiki:Glossary.Component.WebHome]] values that can be derived from the [[Metadata Structure Definition>>doc:xwiki:Glossary.Metadata structure definition.WebHome]] to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked.

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| |role|(% style="width:442px" %)Association to the role that the (% style="color:#e74c3c" %)Constraint(%%) plays

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|DataConstraint|(((

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Inherits from

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(% style="color:#e74c3c" %)//Constraint//

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)))|(% style="width:442px" %)Defines a (% style="color:#e74c3c" %)Constraint(%%) in terms of the content that can be found in [[data sources>>doc:xwiki:Glossary.Data source.WebHome]] linked to the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] to which this (% style="color:#e74c3c" %)constraint(%%) is associated.

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|ConstraintRoleType| |(% style="width:442px" %)Specifies the way the type of content of a (% style="color:#e74c3c" %)Constraint(%%) in terms of its purpose.

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| |allowableContent|(% style="width:442px" %)The (% style="color:#e74c3c" %)Constraint(%%) contains a specification of the valid subset of the [[Component>>doc:xwiki:Glossary.Component.WebHome]] values or keys.

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| |actualContent|(% style="width:442px" %)The (% style="color:#e74c3c" %)Constraint(%%) contains a specification of the actual content of a data or metadata source in terms of the [[Component>>doc:xwiki:Glossary.Component.WebHome]] values or keys in the source.

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|MetadataConstrai nt|(((

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Inherits from

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(% style="color:#e74c3c" %)//Constraint//

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)))|(% style="width:442px" %)Defines a (% style="color:#e74c3c" %)Constraint(%%) in terms of the content that can be found in metadata sources linked to the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] to which this (% style="color:#e74c3c" %)constraint(%%) is associated.

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|DataKeySet| |(% style="width:442px" %)A set of data keys.

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| |isIncluded|(% style="width:442px" %)Indicates whether the Data Key Set is included in the (% style="color:#e74c3c" %)constraint(%%) definition or excluded from the (% style="color:#e74c3c" %)constraint(%%) definition.

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| |+keys|(% style="width:442px" %)Association to the Data Keys in the set.

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| |+member|(% style="width:442px" %)Association to the selection of a value subset for [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] and [[Measures>>doc:xwiki:Glossary.Measure.WebHome]].

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|DataKey| |(% style="width:442px" %)The values of a key in a data set.

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| |isIncluded|(% style="width:442px" %)Indicates whether the Data Key is included in the (% style="color:#e74c3c" %)constraint(%%) definition or excluded from the (% style="color:#e74c3c" %)constraint(%%) definition.

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| |+keyValue|(% style="width:442px" %)(((

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Associates the [[Component>>doc:xwiki:Glossary.Component.WebHome]]

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Values that comprise the key.

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)))

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| |validFrom|(% style="width:442px" %)Date from which the Data Key is valid.

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| |validTo|(% style="width:442px" %)Date from which the Data Key is superseded.

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|ComponentValue| |(% style="width:442px" %)The identification and value of a [[Component>>doc:xwiki:Glossary.Component.WebHome]] of the key (e.g., [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]])

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| |value|(% style="width:442px" %)The value of [[Component>>doc:xwiki:Glossary.Component.WebHome]]

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| |+valueFor|(% style="width:442px" %)Association to the [[Component>>doc:xwiki:Glossary.Component.WebHome]] (e.g., [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]]) in the Structure to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked.

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|TimeDimensionValue| |(% style="width:442px" %)The value of the Time [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] [[component>>doc:xwiki:Glossary.Component.WebHome]].

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| |timeValue|(% style="width:442px" %)The value of the [[time period>>doc:xwiki:Glossary.Time period.WebHome]].

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| |operator|(% style="width:442px" %)(((

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Indicates whether the specified value represents and exact time or [[time period>>doc:xwiki:Glossary.Time period.WebHome]], or whether the value should be handled as a range.

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A value of greaterThan or greaterThanOrEqual indicates that the value is the beginning of a range (exclusive or inclusive, respectively).

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A value of lessThan or lessThanOrEqual indicates that the value is the end or a range (exclusive or inclusive, respectively).

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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:xwiki:Glossary.Time period.WebHome]] after the beginning of the provided [[time period>>doc:xwiki:Glossary.Time period.WebHome]] for greaterThanOrEqual)

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)))

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|CubeRegion| |(% style="width:442px" %)A set of [[Components>>doc:xwiki:Glossary.Component.WebHome]] and their values that defines a subset or “slice” of the total range of possible content of a data structure to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked.

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| |isIncluded|(% style="width:442px" %)Indicates whether the Cube Region is included in the (% style="color:#e74c3c" %)constraint(%%) definition or excluded from the (% style="color:#e74c3c" %)constraint(%%) definition.

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| |+member|(% style="width:442px" %)Associates the set of [[Components>>doc:xwiki:Glossary.Component.WebHome]] that define the subset of values.

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|MetadataTargetRegion| |(% style="width:442px" %)A set of [[Components>>doc:xwiki:Glossary.Component.WebHome]] and their values that defines a subset or “slice” of the total range of possible content of a metadata structure to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked.

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| |isIncluded|(% style="width:442px" %)Indicates whether the Metadata Target Region is included in the (% style="color:#e74c3c" %)constraint(%%) definition or excluded from the (% style="color:#e74c3c" %)constraint(%%) definition.

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| |+member|(% style="width:442px" %)Associates the set of [[Components>>doc:xwiki:Glossary.Component.WebHome]] that define the subset of values.

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|MemberSelection| |(% style="width:442px" %)A set of permissible values for one [[component>>doc:xwiki:Glossary.Component.WebHome]] of the axis.

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| |isIncluded|(% style="width:442px" %)Indicates whether the [[Member Selection>>doc:xwiki:Glossary.Member selection.WebHome]] is included in the (% style="color:#e74c3c" %)constraint(%%) definition or excluded from the (% style="color:#e74c3c" %)constraint(%%) definition.

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| |removePrefix|(% style="width:442px" %)Indicates whether the [[Codes>>doc:xwiki:Glossary.Code.WebHome]] should keep or not the prefix, as defined in the extension of Codelist.

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| |+valuesFor|(% style="width:442px" %)Association to the [[Component>>doc:xwiki:Glossary.Component.WebHome]] in the Structure to which the Constrainable [[Artefact>>doc:xwiki:Glossary.Artefact.WebHome]] is linked, which defines the valid [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] for the Member Values.

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|//SelectionValue//|(((

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Abstract class. Sub classes are:

MemberValue

//TimeRangeValue//

LocalisedMemberValue

)))|(% style="width:442px" %)A collection of values for the [[Member Selections>>doc:xwiki:Glossary.Member selection.WebHome]] that, combined with other [[Member Selections>>doc:xwiki:Glossary.Member selection.WebHome]], comprise the value content of the Cube Region.

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| |validFrom|(% style="width:442px" %)Date from which the Selection Value is valid.

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| |validTo|(% style="width:442px" %)Date from which the Selection Value is superseded.

|MemberValue|(((

Inherits from

//SelectionValue//

)))|(% style="width:442px" %)A single value of the set of values for the [[Member Selection>>doc:xwiki:Glossary.Member selection.WebHome]].

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| |value|(% style="width:442px" %)A value of the member.

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| |cascadeValues|(% style="width:442px" %)Indicates that the child nodes of the member are included in the [[Member Selection>>doc:xwiki:Glossary.Member selection.WebHome]] (e.g., child [[codes>>doc:xwiki:Glossary.Code.WebHome]])

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|LocalisedMemberValue|(((

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Inherits from

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//SelectionValue//

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)))|(% style="width:442px" %)A single localised value of the set of values for a [[Member Selection>>doc:xwiki:Glossary.Member selection.WebHome]].

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| |value|(% style="width:442px" %)A value of the member.

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| |locale|(% style="width:442px" %)The locale that the values must adhere to in the [[dataset>>doc:xwiki:Glossary.Data set.WebHome]].

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|//TimeRangeValue//|(((

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Inherits from

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//SelectionValue//

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Abstract Class Concrete Classes:

BeforePeriod

AfterPeriod

RangePeriod

)))|(% style="width:442px" %)A time value or values that specifies the date or dates for which the constrained selection is valid.

|BeforePeriod|(((

Inherits from

//TimeRangeValue//

)))|(% style="width:442px" %)The period before which the constrained selection is valid.

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| |isInclusive|(% style="width:442px" %)Indication of whether the date is inclusive in the period.

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| |period|(% style="width:442px" %)The [[time period>>doc:xwiki:Glossary.Time period.WebHome]] which acts as the latest possible reported period

|AfterPeriod|(((

Inherits from

//TimeRangeValue//

)))|(% style="width:442px" %)The period after which the constrained selection is valid.

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| |isInclusive|(% style="width:442px" %)Indication of whether the date is inclusive in the period.

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| |period|(% style="width:442px" %)The [[time period>>doc:xwiki:Glossary.Time period.WebHome]] which acts as the earliest possible reported period

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|RangePeriod| |(% style="width:442px" %)The start and end periods in a date range.

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| |+start|(% style="width:442px" %)Association to the Start Period.

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| |+end|(% style="width:442px" %)Association to the End Period.

|StartPeriod|(((

Inherits from

//TimeRangeValue//

)))|(% style="width:442px" %)The period from which the constrained selection is valid.

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| |isInclusive|(% style="width:442px" %)Indication of whether the date is inclusive in the period.

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| |period|(% style="width:442px" %)The [[time period>>doc:xwiki:Glossary.Time period.WebHome]] which acts as the start of the range

|EndPeriod|(((

Inherits from

//TimeRangeValue//

)))|(% style="width:442px" %)The period to which the constrained selection is valid.

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| |isInclusive|(% style="width:442px" %)Indication of whether the date is inclusive in the period.

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| |period|(% style="width:442px" %)The [[time period>>doc:xwiki:Glossary.Time period.WebHome]] which acts as the end of the range

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|ReleaseCalendar| |(% style="width:442px" %)The schedule of publication or reporting of the data or metadata

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| |periodicity|(% style="width:442px" %)The [[time period>>doc:xwiki:Glossary.Time period.WebHome]] between the releases of the data or metadata

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| |offset|(% style="width:442px" %)Interval between January 1^^st^^ and the first release of the data

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| |tolerance|(% style="width:442px" %)Period after which the data or metadata may be deemed late.

Wiki source code of 12 Constraints