Changes for page 3 SDMX Base Package

Last modified by Helena K. on 2026/06/08 16:18

From 13.1 to 14.1 From 31.1 to 32.1

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edited by Artur K.
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edited by Helena K.
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  == 3.1 Introduction ==
--The constructs in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base package comprise the fundamental building blocks that support many of the other structures in the model. For this reason, many of the classes in this package are abstract (i.e., only derived sub-classes can exist in an implementation).
++The constructs in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base package comprise the fundamental building blocks that support many of the other structures in the model. For this reason, many of the classes in this package are abstract (i.e., only derived sub-classes can exist in an implementation).
--The motivation for establishing the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base package is as follows:
++The motivation for establishing the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base package is as follows:
  it is accepted “Best Practise” to identify fundamental archetypes occurring in a model// //identification of commonly found structures or “patterns” leads to easier understanding// //identification of patterns encourages re-use
--Each of the class diagrams in this section views classes from the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base package from a different perspective. There are detailed views of specific patterns, plus overviews showing inheritance between classes, and relationships amongst classes.
++Each of the class diagrams in this section views classes from the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base package from a different perspective. There are detailed views of specific patterns, plus overviews showing inheritance between classes, and relationships amongst classes.
  == 3.2 Base Structures - Identification, Versioning, and Maintenance ==
  === 3.2.1 Class Diagram ===
--[[image:1749246130522-547.jpeg]]
--
  [[image:image36.png]]
  **Figure 10: SDMX Identification, Maintenance and Versioning**
@@ -26,81 +26,81 @@
  ==== 3.2.2.1 Narrative ====
--This group of classes forms the nucleus of the administration [[facets>>doc:Glossary.Facet.WebHome]] of [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] objects. They provide features which are reusable by derived classes to support horizontal functionality such as identity, versioning etc.
++This group of classes forms the nucleus of the administration facets of [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] objects. They provide features which are reusable by derived classes to support horizontal functionality such as identity, versioning etc.
--All classes derived from the abstract class //AnnotableArtefact// may have [[Annotations>>doc:Glossary.Annotation.WebHome]] (or notes): this supports the need to add notes to all [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] elements. The [[Annotation>>doc:Glossary.Annotation.WebHome]] is used to convey extra information to describe any [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] construct. This information may be in the form of a URL reference and/or a multilingual text (represented by the association to InternationalString).
++All classes derived from the abstract class //[[AnnotableArtefact>>doc:IMElements.AnnotableArtefact.WebHome]]// may have Annotations (or notes): this supports the need to add notes to all [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] elements. The [[Annotation>>doc:IMElements.Annotation.WebHome]] is used to convey extra information to describe any [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] construct. This information may be in the form of a URL reference and/or a multilingual [[text>>doc:IMElements.text.WebHome]] (represented by the association to [[InternationalString>>doc:IMElements.InternationalString.WebHome]]).
--The //IdentifiableArtefact// is an abstract class that comprises the basic [[attributes>>doc:Glossary.Attribute.WebHome]] needed for identification. Concrete classes based on //IdentifiableArtefact// all inherit the ability to be uniquely identified.
++The //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]// is an abstract class that comprises the basic [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] needed for identification. Concrete classes based on //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]// all inherit the ability to be uniquely identified.
--The (% style="background-color:#e74c3c" %)//NamableArtefact//(%%) is an abstract class that inherits from //IdentifiableArtefact //and in addition the +[[description>>doc:IMElements.description.WebHome]] and +[[name>>doc:IMElements.name.WebHome]] roles support multilingual descriptions and names for all objects based on //NameableArtefact//. The InternationalString supports the [[representation>>doc:Glossary.Representation.WebHome]] of a [[description>>doc:IMElements.description.WebHome]] in multiple locales ([[locale>>doc:IMElements.locale.WebHome]] is similar to language but includes geographic variations such as Canadian French, US English etc.). The //LocalisedString// supports the [[representation>>doc:Glossary.Representation.WebHome]] of a [[description>>doc:IMElements.description.WebHome]] in one [[locale>>doc:IMElements.locale.WebHome]].
++The (% style="background-color:#e74c3c" %)//NamableArtefact//(%%) is an abstract class that inherits from //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]] //and in addition the +[[description>>doc:IMElements.description.WebHome]] and +[[name>>doc:IMElements.name.WebHome]] roles support multilingual descriptions and names for all objects based on //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//. The [[InternationalString>>doc:IMElements.InternationalString.WebHome]] supports the representation of a [[description>>doc:IMElements.description.WebHome]] in multiple locales ([[locale>>doc:IMElements.locale.WebHome]] is similar to [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] but includes geographic variations such as Canadian French, US English etc.). The //[[LocalisedString>>doc:IMElements.LocalisedString.WebHome]]// supports the representation of a [[description>>doc:IMElements.description.WebHome]] in one [[locale>>doc:IMElements.locale.WebHome]].
--//VersionableArtefact// is an abstract class which inherits from //NameableArtefact// and adds versioning ability to all classes derived from it, as explained in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] versioning rules in [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Standards Section 6 “Technical Notes”, paragraph “4.3 Versioning”.
++//[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]// is an abstract class which inherits from //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]// and adds versioning ability to all classes derived from it, as explained in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] versioning rules in [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Standards Section 6 “Technical Notes”, paragraph “4.3 Versioning”.
--//MaintainableArtefact// further adds the ability for derived classes to be maintained via its association to an //[[Organisation>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.WebHome]]//, and adds locational information (i.e., from where the object can be retrieved).
++//[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]// further adds the ability for derived classes to be maintained via its association to an //[[Organisation>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.WebHome]]//, and adds locational information (i.e., from where the object can be retrieved).
--The inheritance chain from //AnnotableArtefact// through to //MaintainableArtefact// allows [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] classes to inherit the features they need, from simple [[annotation>>doc:Glossary.Annotation.WebHome]], through identity, naming, to versioning and maintenance.
++The inheritance chain from //[[AnnotableArtefact>>doc:IMElements.AnnotableArtefact.WebHome]]// through to //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]// allows [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] classes to inherit the features they need, from simple annotation, through identity, naming, to versioning and maintenance.
  ==== 3.2.2.2 Definitions ====
  (% style="width:973.835px" %)
  |**Class**|(% style="width:262px" %)**Feature**|(% style="width:543px" %)**Description**
--|//AnnotableArtefact//|(% style="width:262px" %)(((
++|//[[AnnotableArtefact>>doc:IMElements.AnnotableArtefact.WebHome]]//|(% style="width:262px" %)(((
  Base inheritance sub classes are:
--//IdentifiableArtefact//
--)))|(% style="width:543px" %)Objects of classes derived from this can have attached [[annotations>>doc:Glossary.Annotation.WebHome]].
--|[[Annotation>>doc:Glossary.Annotation.WebHome]]|(% style="width:262px" %)// //|(% style="width:543px" %)Additional descriptive information attached to an object.
--| |(% style="width:262px" %)id|(% style="width:543px" %)Identifier for the [[Annotation>>doc:Glossary.Annotation.WebHome]]. It can be used to disambiguate one [[Annotation>>doc:Glossary.Annotation.WebHome]] from another where there are several [[Annotations>>doc:Glossary.Annotation.WebHome]] for the same annotated object.
--| |(% style="width:262px" %)[[title>>doc:Glossary.Title.WebHome]]|(% style="width:543px" %)A [[title>>doc:Glossary.Title.WebHome]] used to identify an [[annotation>>doc:Glossary.Annotation.WebHome]].
--| |(% style="width:262px" %)type|(% style="width:543px" %)Specifies how the [[annotation>>doc:Glossary.Annotation.WebHome]] is to be processed.
--| |(% style="width:262px" %)url|(% style="width:543px" %)A link to external descriptive text.
--| |(% style="width:262px" %)value|(% style="width:543px" %)A non-localised version of the [[Annotation>>doc:Glossary.Annotation.WebHome]] content.
--| |(% style="width:262px" %)+url|(% style="width:543px" %)An International URI provides a set of links that are language specific, via this role.
--| |(% style="width:262px" %)+text|(% style="width:543px" %)An [[International String>>doc:Glossary.International string.WebHome]] provides the multilingual text content of the [[annotation>>doc:Glossary.Annotation.WebHome]] via this role.
--|InternationalUri|(% style="width:262px" %) |(% style="width:543px" %)The International Uri is a collection of Localised URIs and supports linking to external descriptions in multiple locales.
--|LocalisedUri|(% style="width:262px" %) |(% style="width:543px" %)The Localised URI supports the link to an external description in one locale (locale is similar to language but includes geographic variations such as Canadian French, US English etc.).
--|//IdentifiableArtefact//|(% style="width:262px" %)(((
--Superclass is //AnnotableArtefact//
++//[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//
++)))|(% style="width:543px" %)Objects of classes derived from this can have attached annotations.
++|[[Annotation>>doc:IMElements.Annotation.WebHome]]|(% style="width:262px" %)// //|(% style="width:543px" %)Additional descriptive information attached to an object.
++| |(% style="width:262px" %)[[id>>doc:IMElements.id.WebHome]]|(% style="width:543px" %)Identifier for the Annotation. It can be used to disambiguate one Annotation from another where there are several Annotations for the same annotated object.
++| |(% style="width:262px" %)[[title>>doc:IMElements.title.WebHome]]|(% style="width:543px" %)A title used to identify an annotation.
++| |(% style="width:262px" %)[[type>>doc:IMElements.type.WebHome]]|(% style="width:543px" %)Specifies how the annotation is to be processed.
++| |(% style="width:262px" %)[[url>>doc:IMElements.url.WebHome]]|(% style="width:543px" %)A link to external descriptive text.
++| |(% style="width:262px" %)[[value>>doc:IMElements.value.WebHome]]|(% style="width:543px" %)A non-localised version of the Annotation content.
++| |(% style="width:262px" %)+[[url>>doc:IMElements.url.WebHome]]|(% style="width:543px" %)An International URI provides a set of links that are [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] specific, via this role.
++| |(% style="width:262px" %)+[[text>>doc:IMElements.text.WebHome]]|(% style="width:543px" %)An [[International String>>doc:sdmx:Glossary 2\.1.International string.WebHome]] provides the multilingual text content of the annotation via this role.
++|[[InternationalUri>>doc:IMElements.InternationalURI.WebHome]]|(% style="width:262px" %) |(% style="width:543px" %)The International Uri is a collection of Localised URIs and supports linking to external descriptions in multiple locales.
++|[[LocalisedUri>>doc:IMElements.LocalisedURI.WebHome]]|(% style="width:262px" %) |(% style="width:543px" %)The Localised URI supports the link to an external description in one locale (locale is similar to [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] but includes geographic variations such as Canadian French, US English etc.).
++|//[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//|(% style="width:262px" %)(((
++Superclass is //[[AnnotableArtefact>>doc:IMElements.AnnotableArtefact.WebHome]]//
  Base inheritance sub classes are:
--//NameableArtefact//
--)))|(% style="width:543px" %)Provides identity to all derived classes. It also provides [[annotations>>doc:Glossary.Annotation.WebHome]] to derived classes because it is a subclass of Annotable [[Artefact>>doc:Glossary.Artefact.WebHome]].
--| |(% style="width:262px" %)id|(% style="width:543px" %)The unique identifier of the object.
--| |(% style="width:262px" %)uri|(% style="width:543px" %)Universal resource identifier that may or may not be resolvable.
--| |(% style="width:262px" %)urn|(% style="width:543px" %)Universal resource name – this is for use in registries: all registered objects have a urn.
--|//NameableArtefact//|(% style="width:262px" %)(((
--Superclass is //IdentifiableArtefact// Base inheritance sub classes are:
--//VersionableArtefact//
--)))|(% style="width:543px" %)Provides a Name and Description to all derived classes in addition to identification and [[annotations>>doc:Glossary.Annotation.WebHome]].
--| |(% style="width:262px" %)+description|(% style="width:543px" %)A multi-lingual description is provided by this role via the [[International String>>doc:Glossary.International string.WebHome]] class.
--| |(% style="width:262px" %)+name|(% style="width:543px" %)A multi-lingual name is provided by this role via the [[International String>>doc:Glossary.International string.WebHome]] class
--|InternationalString|(% style="width:262px" %) |(% style="width:543px" %)The [[International String>>doc:Glossary.International string.WebHome]] is a collection of Localised Strings and supports the [[representation>>doc:Glossary.Representation.WebHome]] of text in multiple locales.
--|LocalisedString|(% style="width:262px" %) |(% style="width:543px" %)The Localised String supports the [[representation>>doc:Glossary.Representation.WebHome]] of text in one locale (locale is similar to language but includes geographic variations such as Canadian French, US English etc.).
--| |(% style="width:262px" %)label|(% style="width:543px" %)Label of the string.
--| |(% style="width:262px" %)locale|(% style="width:543px" %)The geographic locale of the string e.g French, Canadian French.
--|//VersionableArtefact//|(% style="width:262px" %)(((
++//[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//
++)))|(% style="width:543px" %)Provides identity to all derived classes. It also provides annotations to derived classes because it is a subclass of [[Annotable Artefact>>doc:sdmx:Glossary 2\.1.Annotable artefact.WebHome]].
++| |(% style="width:262px" %)[[id>>doc:IMElements.id.WebHome]]|(% style="width:543px" %)The unique identifier of the object.
++| |(% style="width:262px" %)[[uri>>doc:IMElements.uri.WebHome]]|(% style="width:543px" %)Universal resource identifier that may or may not be resolvable.
++| |(% style="width:262px" %)[[urn>>doc:IMElements.urn.WebHome]]|(% style="width:543px" %)Universal resource name – this is for use in registries: all registered objects have a urn.
++|//[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//|(% style="width:262px" %)(((
++Superclass is //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]// Base inheritance sub classes are:
++//[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//
++)))|(% style="width:543px" %)Provides a Name and Description to all derived classes in addition to identification and annotations.
++| |(% style="width:262px" %)+[[description>>doc:IMElements.description.WebHome]]|(% style="width:543px" %)A multi-lingual description is provided by this role via the [[International String>>doc:sdmx:Glossary 2\.1.International string.WebHome]] class.
++| |(% style="width:262px" %)+[[name>>doc:IMElements.name.WebHome]]|(% style="width:543px" %)A multi-lingual name is provided by this role via the [[International String>>doc:sdmx:Glossary 2\.1.International string.WebHome]] class
++|[[InternationalString>>doc:IMElements.InternationalString.WebHome]]|(% style="width:262px" %) |(% style="width:543px" %)The [[International String>>doc:sdmx:Glossary 2\.1.International string.WebHome]] is a collection of Localised Strings and supports the representation of text in multiple locales.
++|[[LocalisedString>>doc:IMElements.LocalisedString.WebHome]]|(% style="width:262px" %) |(% style="width:543px" %)The Localised String supports the representation of text in one locale (locale is similar to [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] but includes geographic variations such as Canadian French, US English etc.).
++| |(% style="width:262px" %)[[label>>doc:IMElements.label.WebHome]]|(% style="width:543px" %)Label of the string.
++| |(% style="width:262px" %)[[locale>>doc:IMElements.locale.WebHome]]|(% style="width:543px" %)The geographic locale of the string e.g French, Canadian French.
++|//[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//|(% style="width:262px" %)(((
  Superclass is
--//NameableArtefact//
++//[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//
  Base inheritance sub classes are:
--//MaintainableArtefact//
++//[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
  )))|(% style="width:543px" %)Provides versioning information for all derived objects.
--| |(% style="width:262px" %)(% style="color:#e74c3c" %)[[version>>doc:Glossary.Version.WebHome]]|(% style="width:543px" %)A (% style="color:#e74c3c" %)[[version>>doc:Glossary.Version.WebHome]](%%) string following [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] versioning rules.
--| |(% style="width:262px" %)validFrom|(% style="width:543px" %)Date from which the (% style="color:#e74c3c" %)[[version>>doc:Glossary.Version.WebHome]](%%) is valid
--| |(% style="width:262px" %)validTo|(% style="width:543px" %)Date from which (% style="color:#e74c3c" %)[[version>>doc:Glossary.Version.WebHome]](%%) is superseded
--|//MaintainableArtefact//|(% style="width:262px" %)(((
++| |(% style="width:262px" %)[[version>>doc:IMElements.version.WebHome]]|(% style="width:543px" %)A version string following [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] versioning rules.
++| |(% style="width:262px" %)[[validFrom>>doc:IMElements.validFrom.WebHome]]|(% style="width:543px" %)Date from which the version is valid
++| |(% style="width:262px" %)[[validTo>>doc:IMElements.validTo.WebHome]]|(% style="width:543px" %)Date from which version is superseded
++|//[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//|(% style="width:262px" %)(((
  Inherits from
--//VersionableArtefact//
--)))|(% style="width:543px" %)An abstract class to group together primary [[structural metadata>>doc:Glossary.Structural metadata.WebHome]] [[artefacts>>doc:Glossary.Artefact.WebHome]] that are maintained by an Agency.
--| |(% style="width:262px" %)isExternalReference|(% style="width:543px" %)If set to “true” it indicates that the content of the object is held externally.
--| |(% style="width:262px" %)structureURL|(% style="width:543px" %)The URL of an [[SDMX-ML>>doc:Glossary.SDMX-ML.WebHome]] document containing the external object.
--| |(% style="width:262px" %)serviceURL|(% style="width:543px" %)The URL of an [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]]-compliant web service from which the external object can be retrieved.
--| |(% style="width:262px" %)+maintainer|(% style="width:543px" %)Association to the [[Maintenance Agency>>doc:Glossary.Maintenance agency.WebHome]] responsible for maintaining the [[artefact>>doc:Glossary.Artefact.WebHome]].
--|Agency|(% style="width:262px" %) |(% style="width:543px" %)See section on “Organisations”
++//[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//
++)))|(% style="width:543px" %)An abstract class to group together primary [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]] [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] that are maintained by an Agency.
++| |(% style="width:262px" %)[[isExternalReference>>doc:IMElements.isExternalReference.WebHome]]|(% style="width:543px" %)If set to “true” it indicates that the content of the object is held externally.
++| |(% style="width:262px" %)[[structureURL>>doc:IMElements.structureURL.WebHome]]|(% style="width:543px" %)The URL of an [[SDMX-ML>>doc:sdmx:Glossary 2\.1.SDMX-ML.WebHome]] document containing the external object.
++| |(% style="width:262px" %)[[serviceURL>>doc:IMElements.serviceURL.WebHome]]|(% style="width:543px" %)The URL of an [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]]-compliant web service from which the external object can be retrieved.
++| |(% style="width:262px" %)+[[maintainer>>doc:IMElements.maintainer.WebHome]]|(% style="width:543px" %)Association to the [[Maintenance Agency>>doc:sdmx:Glossary 2\.1.Maintenance agency.WebHome]] responsible for maintaining the [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]].
++|[[Agency>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.Agency.WebHome]]|(% style="width:262px" %) |(% style="width:543px" %)See section on “Organisations”
  == 3.3 Basic Inheritance ==
  === 3.3.1 Class Diagram – Basic Inheritance from the Base Inheritance Classes ===
--[[image:1749246130530-261.jpeg]]
++[[image:image37.png]]
  **Figure 11: Basic Inheritance from the Base Structures**
@@ -114,7 +114,7 @@
  === 3.4.1 Class Diagram ===
--[[image:1749246130536-128.jpeg]]
++[[image:image38.png]]
  **Figure 12: Class Diagram of Basic Data Types**
@@ -122,36 +122,36 @@
  ==== 3.4.2.1 Narrative ====
--The FacetType and FacetValueType enumerations are used to specify the valid format of the content of a non-enumerated (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) or the usage of a (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) when specified for use on a //[[Component>>doc:Glossary.Component.WebHome]]// on a //Structure// (such as a [[Dimension>>doc:Glossary.Dimension.WebHome]] in a DataStructureDefinition). The description of the various types can be found in the chapter on ConceptScheme (section 4.5).
++The FacetType and FacetValueType enumerations are used to specify the valid format of the content of a non-[[enumerated>>doc:IMElements.enumerated.WebHome]] [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] or the usage of a [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] when specified for use on a //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// on a //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// (such as a [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] in a [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]). The [[description>>doc:IMElements.description.WebHome]] of the various types can be found in the chapter on [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]] (section 4.5).
--The ActionType enumeration is used to specify the action that a receiving system should take when processing the content that is the object of the action. It is enumerated as follows:
++The ActionType enumeration is used to specify the [[action>>doc:IMElements.action.WebHome]] that a receiving system should take when processing the content that is the object of the [[action>>doc:IMElements.action.WebHome]]. It is [[enumerated>>doc:IMElements.enumerated.WebHome]] as follows:
--* Append: Data or metadata is an [[incremental update>>doc:Glossary.Incremental update.WebHome]] for an existing data/[[metadata set>>doc:Glossary.Metadata set.WebHome]] or the provision of new data or documentation ([[attribute>>doc:Glossary.Attribute.WebHome]] values) formerly absent. If any of the supplied data or metadata is already present, it will not replace that data or metadata. This corresponds to the "Update" value found in version 1.0 of the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Technical Standards.
--* Replace: Data/metadata is to be replaced and may also include additional data/metadata to be appended.
++* Append: Data or [[metadata>>doc:IMElements.metadata.WebHome]] is an [[incremental update>>doc:sdmx:Glossary 2\.1.Incremental update.WebHome]] for an existing data/[[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] or the provision of new data or documentation ([[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] values) formerly absent. If any of the supplied data or [[metadata>>doc:IMElements.metadata.WebHome]] is already present, it will not replace that data or [[metadata>>doc:IMElements.metadata.WebHome]]. This corresponds to the "Update" [[value>>doc:IMElements.value.WebHome]] found in [[version>>doc:IMElements.version.WebHome]] 1.0 of the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Technical Standards.
++* Replace: Data/[[metadata>>doc:IMElements.metadata.WebHome]] is to be replaced and may also include additional data/[[metadata>>doc:IMElements.metadata.WebHome]] to be appended.
  * Delete: Data/Metadata is to be deleted.
--* Information: Data and metadata are for information purposes.
++* Information: Data and [[metadata>>doc:IMElements.metadata.WebHome]] are for information purposes.
--The ToValueType data type contains the [[attributes>>doc:Glossary.Attribute.WebHome]] to support transformations defined in the StructureMap (see Section 0).
++The ToValueType data [[type>>doc:IMElements.type.WebHome]] contains the [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to support transformations defined in the StructureMap (see Section 0).
--The ConstraintRoleType data type contains the [[attributes>>doc:Glossary.Attribute.WebHome]] that identify the purpose of a (% style="color:#e74c3c" %)[[Constraint>>doc:Glossary.Constraint.WebHome]](%%) (allowableContent, actualContent).
++The ConstraintRoleType data [[type>>doc:IMElements.type.WebHome]] contains the [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] that identify the purpose of a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] (allowableContent, actualContent).
--The ComponentRoleType data type contains the predefined (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) roles that can be assigned to any Component.
++The ComponentRoleType data [[type>>doc:IMElements.type.WebHome]] contains the predefined [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] roles that can be assigned to any [[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]].
--The CascadeValues data type contains the possible values for a MemberValue within a CubeRegion, in order to enable cascading to all children [[Codes>>doc:Glossary.Code.WebHome]] of a selected [[Code>>doc:Glossary.Code.WebHome]], while including/excluding the latter in the selection.
++The CascadeValues data [[type>>doc:IMElements.type.WebHome]] contains the possible values for a [[MemberValue>>doc:IMElements.SelectionValue.MemberValue.WebHome]] within a CubeRegion, in order to enable cascading to all children Codes of a selected [[Code>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Code.WebHome]], while including/excluding the latter in the selection.
--The VersionType data types provides the details for versioning according to [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] versioning rules, as explained in [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Standards Section 6, paragraph “4.3 Versioning”.
++The VersionType data types provides the details for versioning according to [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] versioning rules, as explained in [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Standards Section 6, paragraph “4.3 Versioning”.
  == 3.5 The Item Scheme Pattern ==
  === 3.5.1 Context ===
--The [[Item Scheme>>doc:Glossary.Item scheme.WebHome]] is a basic architectural pattern that allows the creation of list schemes for use in simple taxonomies, for example.
++The [[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]] Scheme is a basic architectural pattern that allows the creation of list schemes for use in simple taxonomies, for example.
--The //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is the basis for [[CategoryScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.CategoryScheme.WebHome]], Codelist, [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]], [[ReportingTaxonomy>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ReportingTaxonomy.WebHome]], //[[OrganisationScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.OrganisationScheme.WebHome]]//, TransformationScheme, CustomTypeScheme, NamePersonalisationScheme, RulesetScheme, VtlMappingScheme and UserDefinedOperatorScheme.
++The //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is the basis for [[CategoryScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.CategoryScheme.WebHome]], [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]], [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]], [[ReportingTaxonomy>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ReportingTaxonomy.WebHome]], //[[OrganisationScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.OrganisationScheme.WebHome]]//, TransformationScheme, CustomTypeScheme, NamePersonalisationScheme, RulesetScheme, VtlMappingScheme and UserDefinedOperatorScheme.
  === 3.5.2 Class Diagram ===
--[[image:1749246130543-644.jpeg]]
++[[image:image39.png]]
  **Figure 13 The Item Scheme pattern**
@@ -159,15 +159,15 @@
  ==== 3.5.3.1 Narrative ====
--The //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is an abstract class which defines a set of //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// (this class is also abstract). Its main purpose is to define a mechanism which can be used to create taxonomies which can classify other parts of the [[SDMX Information Model>>doc:Glossary.SDMX Information Model.WebHome]]. It is derived from //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]// which gives it the ability to be annotated, have identity, naming, versioning and be associated with an [[Agency>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.Agency.WebHome]]. An example of a concrete class is a [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]]. The associated [[Concepts>>doc:Glossary.Concept.WebHome]] are //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s.
++The //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is an abstract class which defines a set of //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// (this class is also abstract). Its main purpose is to define a mechanism which can be used to create taxonomies which can classify other parts of the [[SDMX Information Model>>doc:sdmx:Glossary 2\.1.SDMX Information Model.WebHome]]. It is derived from //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]// which gives it the ability to be annotated, have identity, naming, versioning and be associated with an [[Agency>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.Agency.WebHome]]. An example of a concrete class is a [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]]. The associated Concepts are //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s.
--In an exchange environment an //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is allowed to contain a sub-set of the //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s in the maintained //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//. If such an [[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]] is disseminated with a sub-set of the //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s then the fact that this is a sub-set is denoted by setting the isPartial [[attribute>>doc:Glossary.Attribute.WebHome]] to "true".
++In an exchange environment an //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is allowed to contain a sub-set of the //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s in the maintained //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//. If such an [[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]] is disseminated with a sub-set of the //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s then the fact that this is a sub-set is denoted by setting the [[isPartial>>doc:IMElements.isPartial.WebHome]] [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to "true".
--A “partial” //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// cannot be maintained independently in its partial form i.e., it cannot contain //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s that are not present in the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// and the content of any one //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]] //(e.g., names and descriptions) cannot deviate from the content in the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//. Furthermore, the [[id>>doc:IMElements.id.WebHome]] of the //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// where isPartial is set to "true" is the same as the [[id>>doc:IMElements.id.WebHome]] of the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// (agencyId, [[id>>doc:IMElements.id.WebHome]], [[version>>doc:Glossary.Version.WebHome]]). This is important as this is the [[id>>doc:IMElements.id.WebHome]] that that is referenced in other structures (e.g., a [[Codelist>>doc:Glossary.Code list.WebHome]] referenced in a [[DSD>>doc:Glossary.Data structure definition.WebHome]]) and this [[id>>doc:IMElements.id.WebHome]] is always the same, regardless of whether the disseminated //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// or a partial //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//.
++A “partial” //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// cannot be maintained independently in its partial form i.e., it cannot contain //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s that are not present in the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// and the content of any one //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]] //(e.g., names and descriptions) cannot deviate from the content in the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//. Furthermore, the [[id>>doc:IMElements.id.WebHome]] of the //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// where [[isPartial>>doc:IMElements.isPartial.WebHome]] is set to "true" is the same as the [[id>>doc:IMElements.id.WebHome]] of the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// (agencyId, [[id>>doc:IMElements.id.WebHome]], [[version>>doc:IMElements.version.WebHome]]). This is important as this is the [[id>>doc:IMElements.id.WebHome]] that that is referenced in other structures (e.g., a [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] referenced in a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]) and this [[id>>doc:IMElements.id.WebHome]] is always the same, regardless of whether the disseminated //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is the full //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// or a partial //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//.
--The purpose of a partial //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is to support the exchange and dissemination of a subset //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// without the need to maintain multiple //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//s which contain the same //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s. For instance, when a [[Codelist>>doc:Glossary.Code list.WebHome]] is used in a [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] it is sometimes the case that only a sub-set of the [[Codes>>doc:Glossary.Code.WebHome]] in a [[Codelist>>doc:Glossary.Code list.WebHome]] are relevant. In this case a partial [[Codelist>>doc:Glossary.Code list.WebHome]] can be constructed using the [[Constraint>>doc:Glossary.Constraint.WebHome]] mechanism explained later in this document.
++The purpose of a partial //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// is to support the exchange and dissemination of a subset //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// without the need to maintain multiple //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//s which contain the same //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s. For instance, when a [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] is used in a [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] it is sometimes the case that only a sub-set of the Codes in a [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] are relevant. In this case a partial [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] can be constructed using the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] mechanism explained later in this document.
--//[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// inherits from //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]// which gives it the ability to be annotated and have identity, and therefore has [[id>>doc:IMElements.id.WebHome]], [[uri>>doc:IMElements.uri.WebHome]] and [[urn>>doc:IMElements.urn.WebHome]] [[attributes>>doc:Glossary.Attribute.WebHome]], a [[name>>doc:IMElements.name.WebHome]] and a [[description>>doc:IMElements.description.WebHome]] in the form of an [[InternationalString>>doc:IMElements.InternationalString.WebHome]]. Unlike the [[parent>>doc:IMElements.parent.WebHome]] //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//, the //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// itself is not a //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]// and therefore cannot have an independent [[Agency>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.Agency.WebHome]] (i.e., it implicitly has the same agencyId as the //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//).
++//[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// inherits from //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]// which gives it the ability to be annotated and have identity, and therefore has [[id>>doc:IMElements.id.WebHome]], [[uri>>doc:IMElements.uri.WebHome]] and [[urn>>doc:IMElements.urn.WebHome]] [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], a [[name>>doc:IMElements.name.WebHome]] and a [[description>>doc:IMElements.description.WebHome]] in the form of an [[InternationalString>>doc:IMElements.InternationalString.WebHome]]. Unlike the [[parent>>doc:IMElements.parent.WebHome]] //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//, the //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// itself is not a //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]// and therefore cannot have an independent [[Agency>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.Agency.WebHome]] (i.e., it implicitly has the same agencyId as the //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]//).
  The //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// can be hierarchic and so one //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// can have [[child>>doc:IMElements.child.WebHome]] //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s. The restriction of the hierarchic association is that a [[child>>doc:IMElements.child.WebHome]] //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]// can have only [[parent>>doc:IMElements.parent.WebHome]] //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//.
@@ -181,7 +181,7 @@
  Direct sub classes are:
  [[CategoryScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.CategoryScheme.WebHome]]
  [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]]
--Codelist
++[[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]]
  [[ReportingTaxonomy>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ReportingTaxonomy.WebHome]]
  //[[OrganisationScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.OrganisationScheme.WebHome]]//
  TransformationScheme
@@ -190,7 +190,7 @@
  VtlMappingScheme
  UserDefinedOperatorScheme
  )))|(% style="width:583px" %)The descriptive information for an arrangement or division of objects into groups based on characteristics, which the objects have in common.
--| |(% style="width:297px" %)isPartial|(% style="width:583px" %)Denotes whether the [[Item Scheme>>doc:Glossary.Item scheme.WebHome]] contains a subset of the full set of Items in the maintained scheme.
++| |(% style="width:297px" %)[[isPartial>>doc:IMElements.isPartial.WebHome]]|(% style="width:583px" %)Denotes whether the [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] contains a subset of the full set of Items in the maintained scheme.
  | |(% style="width:297px" %)/items|(% style="width:583px" %)Association to the Items in the scheme.
  |//[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//|(% style="width:297px" %)(((
  Inherits from:
@@ -197,8 +197,8 @@
  //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]//
  Direct sub classes are
  [[Category>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Category.WebHome]]
--[[Concept>>doc:Glossary.Concept.WebHome]]
--[[Code>>doc:Glossary.Code.WebHome]]
++[[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]]
++[[Code>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Code.WebHome]]
  [[ReportingCategory>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.ReportingCategory.WebHome]]
  //[[Organisation>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.WebHome]]//
  Transformation
@@ -208,24 +208,23 @@
  VtlMapping
  UserDefinedOperator
  )))|(% style="width:583px" %)(((
--The Item is an item of content in an [[Item Scheme>>doc:Glossary.Item scheme.WebHome]]. This may be a node in a taxonomy or ontology, a [[code>>doc:Glossary.Code.WebHome]] in a [[code list>>doc:Glossary.Code list.WebHome]] etc. Node that at the conceptual level the Organisation is not hierarchic.
++The Item is an item of content in an [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]]. This may be a node in a taxonomy or ontology, a code in a [[code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] etc. Node that at the conceptual level the Organisation is not hierarchic.
  )))
--| |(% style="width:297px" %)hierarchy|(% style="width:583px" %)This allows an Item optionally to have one or more child Items
++| |(% style="width:297px" %)[[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]]|(% style="width:583px" %)This allows an Item optionally to have one or more child Items
  == 3.6 The Structure Pattern ==
  === 3.6.1 Context ===
--The Structure Pattern is a basic architectural pattern which allows the specification of complex tabular structures which are often found in statistical data (such as [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]], and [[Metadata Structure Definition>>doc:Glossary.Metadata structure definition.WebHome]]). A Structure is a set of ordered lists. A pattern to underpin this tabular structure has been developed, so that commonalities between these structure definitions can be supported by common software and common syntax structures.
++The [[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]] Pattern is a basic architectural pattern which allows the specification of complex tabular structures which are often found in statistical data (such as Data [[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]] Definition, and Metadata [[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]] Definition). A [[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]] is a set of ordered lists. A pattern to underpin this tabular [[structure>>doc:IMElements.structure.WebHome]] has been developed, so that commonalities between these [[structure>>doc:IMElements.structure.WebHome]] definitions can be supported by common software and common syntax structures.
  === 3.6.2 Class Diagrams ===
--(% class="wikigeneratedid" %)
--[[image:1749246130548-601.jpeg]]
++[[image:image40.png]]
  **Figure 14: The Structure Pattern**
--[[image:1749246130554-995.jpeg]]
++[[image:image41.png]]
  **Figure 15: Representation within the Structure Pattern**
@@ -235,31 +235,31 @@
  The //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// is an abstract class which contains a set of one or more //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]//(s) (this class is also abstract). An example of a concrete //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// is [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]].
--The //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// is a list of one or more //[[Component>>doc:Glossary.Component.WebHome]]//(s//)//. The //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// has several concrete descriptor classes based on it: [[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]], [[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]], [[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]], and [[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]] of the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] and [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]] of the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]].
++The //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// is a list of one or more //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//(s//)//. The //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// has several concrete descriptor classes based on it: [[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]], [[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]], [[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]], and [[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]] of the [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] and [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]] of the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]].
--The //[[Component>>doc:Glossary.Component.WebHome]]// is contained in a //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]//. The [[type>>doc:IMElements.type.WebHome]] of //[[Component>>doc:Glossary.Component.WebHome]]// in a //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// is dependent on the concrete class of the [[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]] as follows:
++The //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// is contained in a //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]//. The [[type>>doc:IMElements.type.WebHome]] of //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// in a //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// is dependent on the concrete class of the [[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]] as follows:
--[[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]]: [[Dimension>>doc:Glossary.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
--[[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]]: [[Dimension>>doc:Glossary.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
--[[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]]: [[Measure>>doc:Glossary.Measure.WebHome]]
++[[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]]: [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
++[[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]]: [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]]
++[[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]]: [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]]
  [[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]]: [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]], MetadataAttributeRef
  [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]]: [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]]
--Each //[[Component>>doc:Glossary.Component.WebHome]]// takes its semantic (and possibly also its [[representation>>doc:Glossary.Representation.WebHome]]) from a [[Concept>>doc:Glossary.Concept.WebHome]] in a [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]]. This is represented by the conceptIdentity association to [[Concept>>doc:Glossary.Concept.WebHome]].
++Each //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// takes its semantic (and possibly also its representation) from a [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] in a [[ConceptScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.ConceptScheme.WebHome]]. This is represented by the [[conceptIdentity>>doc:IMElements.conceptIdentity.WebHome]] association to [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]].
--The //[[Component>>doc:Glossary.Component.WebHome]]// may also have a localRepresentation. This allows a concrete class, such as [[Dimension>>doc:Glossary.Dimension.WebHome]], to specify its [[representation>>doc:Glossary.Representation.WebHome]] which is local to the //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// in which it is contained (for [[Dimension>>doc:Glossary.Dimension.WebHome]] this will be [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]), and thus overrides any coreRepresentation specified for the [[Concept>>doc:Glossary.Concept.WebHome]].
++The //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// may also have a [[localRepresentation>>doc:IMElements.localRepresentation.WebHome]]. This allows a concrete class, such as [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], to specify its representation which is local to the //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// in which it is contained (for [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] this will be [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]]), and thus overrides any [[coreRepresentation>>doc:IMElements.coreRepresentation.WebHome]] specified for the [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]].
--The [[Representation>>doc:Glossary.Representation.WebHome]] can be [[enumerated>>doc:IMElements.enumerated.WebHome]] or [[non-enumerated>>doc:IMElements.nonEnumerated.WebHome]]. The valid content of an [[enumerated>>doc:IMElements.enumerated.WebHome]] [[representation>>doc:Glossary.Representation.WebHome]] is specified either in an //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// which can be one of [[Codelist>>doc:Glossary.Code list.WebHome]], [[ValueList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.EnumeratedList.ValueList.WebHome]] or //[[GeoCodelist>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.Codelist.GeoCodelist.WebHome]]//. The valid content of a [[non-enumerated>>doc:IMElements.nonEnumerated.WebHome]] [[representation>>doc:Glossary.Representation.WebHome]] is specified as one or more Facet(s) (for example, these may specify minimum and maximum values). For any [[Attribute>>doc:Glossary.Attribute.WebHome]] this is achieved by one of more
++The [[Representation>>doc:IMElements.Representation.WebHome]] can be [[enumerated>>doc:IMElements.enumerated.WebHome]] or non-[[enumerated>>doc:IMElements.enumerated.WebHome]]. The valid content of an [[enumerated>>doc:IMElements.enumerated.WebHome]] representation is specified either in an //[[ItemScheme>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.WebHome]]// which can be one of [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]], [[ValueList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.EnumeratedList.ValueList.WebHome]] or //[[GeoCodelist>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.ItemScheme.Codelist.GeoCodelist.WebHome]]//. The valid content of a non-[[enumerated>>doc:IMElements.enumerated.WebHome]] representation is specified as one or more Facet(s) (for example, these may specify minimum and maximum values). For any [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] this is achieved by one of more
--ExtendedFacet(s), which allow the additional [[representation>>doc:Glossary.Representation.WebHome]] of XHTML.
++ExtendedFacet(s), which allow the additional representation of XHTML.
--The types of [[representation>>doc:Glossary.Representation.WebHome]] that are valid for specific [[components>>doc:Glossary.Component.WebHome]] is expressed in the model as a [[constraint>>doc:Glossary.Constraint.WebHome]] on the association:
++The types of representation that are valid for specific [[components>>doc:IMElements.components.WebHome]] is expressed in the model as a [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] on the association:
--* The [[Dimension>>doc:Glossary.Dimension.WebHome]], [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]], [[Measure>>doc:Glossary.Measure.WebHome]], [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] may be [[enumerated>>doc:IMElements.enumerated.WebHome]] and, if so, use an //[[EnumeratedList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.EnumeratedList.WebHome]]//.
--* The [[Dimension>>doc:Glossary.Dimension.WebHome]] and [[Measure>>doc:Glossary.Measure.WebHome]] may be [[non-enumerated>>doc:IMElements.nonEnumerated.WebHome]] and, if so, use one or more Facet(s), note that the FacetValueType applicable to the [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]] is restricted to those that represent time.
--* The [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] and [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] may be [[non-enumerated>>doc:IMElements.nonEnumerated.WebHome]] and, if so, use one or more ExtendedFacet(s).
++* The [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]], [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]], [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]], [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] may be [[enumerated>>doc:IMElements.enumerated.WebHome]] and, if so, use an //[[EnumeratedList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.EnumeratedList.WebHome]]//.
++* The [[Dimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.Dimension.WebHome]] and [[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]] may be non-[[enumerated>>doc:IMElements.enumerated.WebHome]] and, if so, use one or more Facet(s), note that the FacetValueType applicable to the [[TimeDimension>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.TimeDimension.WebHome]] is restricted to those that represent time.
++* The [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] and [[DataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.DataAttribute.WebHome]] may be non-[[enumerated>>doc:IMElements.enumerated.WebHome]] and, if so, use one or more ExtendedFacet(s).
--The //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// may be used by one or more //[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]//(s). An example of this, in terms of concrete classes, is that a [[Dataflow>>doc:Glossary.Dataflow.WebHome]] (sub class of //[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]//) may use a particular [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] (sub class of //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]//), and similar constructs apply for the [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] (link to [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]).
++The //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// may be used by one or more //[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]//(s). An example of this, in terms of concrete classes, is that a [[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]] (sub class of //[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]//) may use a particular [[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] (sub class of //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]//), and similar constructs apply for the [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]] (link to [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]).
  ==== 3.6.3.2 Definitions ====
@@ -269,17 +269,17 @@
  Inherits from:
  //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
  Sub classes are:
--[[Dataflow>>doc:Glossary.Dataflow.WebHome]]
--[[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]
--)))|(% style="width:897px" %)An [[artefact>>doc:Glossary.Artefact.WebHome]] whose [[components>>doc:Glossary.Component.WebHome]] are described by a Structure. In concrete terms (sub-classes) an example would be a [[Dataflow>>doc:Glossary.Dataflow.WebHome]] which is linked to a given structure – in this case the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
--| |[[structure>>doc:IMElements.structure.WebHome]]|(% style="width:897px" %)An association to a Structure specifying the structure of the [[artefact>>doc:Glossary.Artefact.WebHome]].
++[[Dataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Dataflow.WebHome]]
++[[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]]
++)))|(% style="width:897px" %)An [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] whose components are described by a Structure. In concrete terms (sub-classes) an example would be a Dataflow which is linked to a given structure – in this case the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
++| |[[structure>>doc:IMElements.structure.WebHome]]|(% style="width:897px" %)An association to a Structure specifying the structure of the [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]].
  |[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]|(((
  Inherits from:
  //[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
  Sub classes are:
--[[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] MetadataStructureDefinition
--)))|(% style="width:897px" %)Abstract specification of a list of lists to define a complex tabular structure. A concrete example of this would be statistical [[concepts>>doc:Glossary.Concept.WebHome]], [[code lists>>doc:Glossary.Code list.WebHome]], and their organisation in a data or [[metadata structure definition>>doc:Glossary.Metadata structure definition.WebHome]], defined by a centre institution, usually for the exchange of statistical information with its partners.
--| |[[grouping>>doc:IMElements.grouping.WebHome]]|(% style="width:897px" %)A composite association to one or more [[component>>doc:Glossary.Component.WebHome]] lists.
++[[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]
++)))|(% style="width:897px" %)Abstract specification of a list of lists to define a complex tabular structure. A concrete example of this would be statistical concepts, [[code lists>>doc:sdmx:Glossary 2\.1.Code list.WebHome]], and their organisation in a data or [[metadata structure definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]], defined by a centre institution, usually for the exchange of statistical information with its partners.
++| |[[grouping>>doc:IMElements.grouping.WebHome]]|(% style="width:897px" %)A composite association to one or more component lists.
  |//[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]//|(((
  Inherits from:
  //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//
@@ -287,35 +287,35 @@
  [[DimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.DimensionDescriptor.WebHome]]
  [[GroupDimensionDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.GroupDimensionDescriptor.WebHome]]
  [[MeasureDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MeasureDescriptor.WebHome]]
--[[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]] MetadataAttributeDescriptor
--)))|(% style="width:897px" %)An abstract definition of a list of [[components>>doc:Glossary.Component.WebHome]]. A concrete example is a [[Dimension>>doc:Glossary.Dimension.WebHome]] Descriptor, which defines the list of [[Dimensions>>doc:Glossary.Dimension.WebHome]] in a [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]].
--| |[[components>>doc:Glossary.Component.WebHome]]|(% style="width:897px" %)An aggregate association to one or more [[components>>doc:Glossary.Component.WebHome]] which make up the list.
--|//[[Component>>doc:Glossary.Component.WebHome]]//|(((
++[[AttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.AttributeDescriptor.WebHome]] [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]]
++)))|(% style="width:897px" %)An abstract definition of a list of components. A concrete example is a Dimension Descriptor, which defines the list of Dimensions in a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
++| |[[components>>doc:IMElements.components.WebHome]]|(% style="width:897px" %)An aggregate association to one or more components which make up the list.
++|//[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]//|(((
  Inherits from:
  //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//
  Sub classes are:
--[[Measure>>doc:Glossary.Measure.WebHome]]
++[[Measure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.Measure.WebHome]]
  //[[AttributeComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.WebHome]]
  [[DimensionComponent>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.DimensionComponent.WebHome]]//
--)))|(% style="width:897px" %)A [[Component>>doc:Glossary.Component.WebHome]] is an abstract super class used to define qualitative and quantitative data and metadata items that belong to a [[Component>>doc:Glossary.Component.WebHome]] List and hence a Structure. [[Component>>doc:Glossary.Component.WebHome]] is refined through its sub-classes.
--| |conceptIdentity|(% style="width:897px" %)Association to a [[Concept>>doc:Glossary.Concept.WebHome]] in a [[Concept Scheme>>doc:Glossary.Concept scheme.WebHome]] that identifies and defines the semantic of the [[Component>>doc:Glossary.Component.WebHome]].
--| |localRepresentation|(% style="width:897px" %)(((
--Association to the [[Representation>>doc:Glossary.Representation.WebHome]] of the [[Component>>doc:Glossary.Component.WebHome]] if this is different from the coreRepresentation of the [[Concept>>doc:Glossary.Concept.WebHome]], which the [[Component>>doc:Glossary.Component.WebHome]] uses (ConceptUsage).
++)))|(% style="width:897px" %)A Component is an abstract super class used to define qualitative and quantitative data and metadata items that belong to a Component List and hence a Structure. Component is refined through its sub-classes.
++| |[[conceptIdentity>>doc:IMElements.conceptIdentity.WebHome]]|(% style="width:897px" %)Association to a Concept in a [[Concept Scheme>>doc:sdmx:Glossary 2\.1.Concept scheme.WebHome]] that identifies and defines the semantic of the Component.
++| |[[localRepresentation>>doc:IMElements.localRepresentation.WebHome]]|(% style="width:897px" %)(((
++Association to the Representation of the Component if this is different from the coreRepresentation of the Concept, which the Component uses (ConceptUsage).
  )))
--|[[Representation>>doc:Glossary.Representation.WebHome]]| |(% style="width:897px" %)The allowable value or format for [[Component>>doc:Glossary.Component.WebHome]] or [[Concept>>doc:Glossary.Concept.WebHome]]
--| |+[[enumerated>>doc:IMElements.enumerated.WebHome]]|(% style="width:897px" %)Association to an enumerated list that contains the allowable content for the [[Component>>doc:Glossary.Component.WebHome]] when reported in a data or [[metadata set>>doc:Glossary.Metadata set.WebHome]]. The type of enumerated list that is allowed for any concrete [[Component>>doc:Glossary.Component.WebHome]] is shown in the [[constraints>>doc:Glossary.Constraint.WebHome]] on the association.
--| |+nonEnumerated|(% style="width:897px" %)Association to a set of [[Facets>>doc:Glossary.Facet.WebHome]] that define the allowable format for the content of the [[Component>>doc:Glossary.Component.WebHome]] when reported in a data or [[metadata set>>doc:Glossary.Metadata set.WebHome]].
--|[[Facet>>doc:Glossary.Facet.WebHome]]| |(% style="width:897px" %)Defines the format for the content of the [[Component>>doc:Glossary.Component.WebHome]] when reported in a data or [[metadata set>>doc:Glossary.Metadata set.WebHome]].
--| |facetType|(% style="width:897px" %)A specific content type, which is constrained by the [[Facet>>doc:Glossary.Facet.WebHome]] Type enumeration.
--| |facetValueType|(% style="width:897px" %)The format of the value of a [[Component>>doc:Glossary.Component.WebHome]] when reported in a data or [[metadata set>>doc:Glossary.Metadata set.WebHome]]. This is constrained by the [[Facet>>doc:Glossary.Facet.WebHome]] Value Type enumeration.
--| |+itemSchemeFacet|(% style="width:897px" %)Defines the format of the identifiers in an [[Item Scheme>>doc:Glossary.Item scheme.WebHome]] used by a [[Component>>doc:Glossary.Component.WebHome]]. Typically, this would define the number of characters (length) of the identifier.
--|[[ExtendedFacet>>doc:IMElements.Facet.ExtendedFacet.WebHome]]| |(% style="width:897px" %)This has the same function as [[Facet>>doc:Glossary.Facet.WebHome]] but allows additionally an XHTML [[representation>>doc:Glossary.Representation.WebHome]]. This is constrained for use with a Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]] and a Data [[Attribute>>doc:Glossary.Attribute.WebHome]].
++|[[Representation>>doc:IMElements.Representation.WebHome]]| |(% style="width:897px" %)The allowable value or format for Component or Concept
++| |+[[enumerated>>doc:IMElements.enumerated.WebHome]]|(% style="width:897px" %)Association to an enumerated list that contains the allowable content for the Component when reported in a data or [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]. The type of enumerated list that is allowed for any concrete Component is shown in the [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] on the association.
++| |+[[nonEnumerated>>doc:IMElements.nonEnumerated.WebHome]]|(% style="width:897px" %)Association to a set of Facets that define the allowable format for the content of the Component when reported in a data or [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]].
++|[[Facet>>doc:IMElements.Facet.WebHome]]| |(% style="width:897px" %)Defines the format for the content of the Component when reported in a data or [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]].
++| |[[facetType>>doc:IMElements.facetType.WebHome]]|(% style="width:897px" %)A specific content type, which is constrained by the Facet Type enumeration.
++| |[[facetValueType>>doc:IMElements.facetValueType.WebHome]]|(% style="width:897px" %)The format of the value of a Component when reported in a data or [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]. This is constrained by the Facet Value Type enumeration.
++| |+itemSchemeFacet|(% style="width:897px" %)Defines the format of the identifiers in an [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] used by a Component. Typically, this would define the number of characters (length) of the identifier.
++|[[ExtendedFacet>>doc:IMElements.ExtendedFacet.WebHome]]| |(% style="width:897px" %)This has the same function as Facet but allows additionally an XHTML representation. This is constrained for use with a Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] and a Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
--The specification of the content and use of the sub classes to //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// and //[[Component>>doc:Glossary.Component.WebHome]]// can be found in the section in which they are used ([[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] and [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]). Moreover, the FacetType SentinelValues is explained in the datastructure [[representation>>doc:Glossary.Representation.WebHome]] diagram (see 5.3.2.2), since it only concerns DataStructureDefinitions.
++The specification of the content and use of the sub classes to //[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]// and //[[Component>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.WebHome]]// can be found in the section in which they are used ([[DataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.DataStructureDefinition.WebHome]] and [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]). Moreover, the FacetType SentinelValues is explained in the datastructure representation diagram (see 5.3.2.2), since it only concerns DataStructureDefinitions.
  ==== 3.6.3.3 Representation Constructs ====
--The majority of [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] FacetValueTypes are compatible with those found in XML Schema, and have equivalents in most current implementation platforms:
++The majority of [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] FacetValueTypes are compatible with those found in XML Schema, and have equivalents in most current implementation platforms:
  |(% style="width:198px" %)(((
  **SDMX Facet Value Type**
@@ -340,25 +340,25 @@
  |(% style="width:198px" %)Day, MonthDay, Month|(% style="width:204px" %)xsd:g*|(% style="width:209px" %)string|(% style="width:187px" %)System.DateTime|(% style="width:817px" %)javax.xml.datatype.XML GregorianCalendar
  |(% style="width:198px" %)Duration|(% style="width:204px" %)xsd:duration|(% style="width:209px" %)string|(% style="width:187px" %)System.TimeSpan|(% style="width:817px" %)javax.xml.datatype.Dur ation
--There are also a number of [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] data types which do not have these direct correspondences, often because they are composite [[representations>>doc:Glossary.Representation.WebHome]] or restrictions of a broader data type. These are detailed in Section 6 of the standards.
++There are also a number of [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] data types which do not have these direct correspondences, often because they are composite representations or restrictions of a broader data [[type>>doc:IMElements.type.WebHome]]. These are detailed in Section 6 of the standards.
--The [[Representation>>doc:Glossary.Representation.WebHome]] is composed of [[Facets>>doc:Glossary.Facet.WebHome]], each of which conveys characteristic information related to the definition of a value domain. Often a set of [[Facets>>doc:Glossary.Facet.WebHome]] are needed to convey the required semantic. For example, a sequence is defined by a minimum of two [[Facets>>doc:Glossary.Facet.WebHome]]: one to define the start value, and one to define the interval.
++The [[Representation>>doc:IMElements.Representation.WebHome]] is composed of Facets, each of which conveys characteristic information related to the definition of a [[value>>doc:IMElements.value.WebHome]] domain. Often a set of Facets are needed to convey the required semantic. For example, a [[sequence>>doc:IMElements.sequence.WebHome]] is defined by a minimum of two Facets: one to define the start [[value>>doc:IMElements.value.WebHome]], and one to define the interval.
  (% style="width:981.835px" %)
  |(% style="width:107px" %)**Facet Type**|(% style="width:872px" %)**Explanation**
--|(% style="width:107px" %)isSequence|(% style="width:872px" %)The isSequence [[facet>>doc:Glossary.Facet.WebHome]] indicates whether the values are intended to be ordered, and it may work in combination with the interval, startValue,and endValue [[facet>>doc:Glossary.Facet.WebHome]] or the timeInterval, startTime, and endTime, [[facets>>doc:Glossary.Facet.WebHome]]. If this [[attribute>>doc:Glossary.Attribute.WebHome]] holds a value of true, a start value or time and a numeric or time interval must be supplied. If an end value is not given, then the sequence continues indefinitely.
--|(% style="width:107px" %)interval|(% style="width:872px" %)The interval [[attribute>>doc:Glossary.Attribute.WebHome]] specifies the permitted interval (increment) in a sequence. In order for this to be used, the isSequence [[attribute>>doc:Glossary.Attribute.WebHome]] must have a value of true.
--|(% style="width:107px" %)startValue|(% style="width:872px" %)The startValue [[facet>>doc:Glossary.Facet.WebHome]] is used in conjunction with the isSequence and interval [[facets>>doc:Glossary.Facet.WebHome]] (which must be set in order to use this [[facet>>doc:Glossary.Facet.WebHome]]). This [[facet>>doc:Glossary.Facet.WebHome]] isused for a numeric sequence and indicates the starting point of the sequence. This value is mandatory for a numeric sequence to be expressed.
--|(% style="width:107px" %)endValue|(% style="width:872px" %)The endValue [[facet>>doc:Glossary.Facet.WebHome]] is used in conjunction with the isSequence and interval [[facets>>doc:Glossary.Facet.WebHome]] (which must be set in order to use this [[facet>>doc:Glossary.Facet.WebHome]]). This [[facet>>doc:Glossary.Facet.WebHome]] is used for a numeric sequence and indicates that ending point (if any) of the sequence.
--|(% style="width:107px" %)timeInterval|(% style="width:872px" %)The timeInterval [[facet>>doc:Glossary.Facet.WebHome]] indicates the permitted duration in a time sequence. In order for this to be used, the isSequence [[facet>>doc:Glossary.Facet.WebHome]] must have a value of true.
--|(% style="width:107px" %)startTime|(% style="width:872px" %)The startTime [[facet>>doc:Glossary.Facet.WebHome]] is used in conjunction with the isSequence and timeInterval [[facets>>doc:Glossary.Facet.WebHome]] (which must be set in order to use this [[facet>>doc:Glossary.Facet.WebHome]]). Thisnattribute is used for a time sequence and indicates the start time of thensequence. This value is mandatory for a time sequence to be expressed.
--|(% style="width:107px" %)endTime|(% style="width:872px" %)The endTime [[facet>>doc:Glossary.Facet.WebHome]] is used in conjunction with the isSequence and timeInterval [[facets>>doc:Glossary.Facet.WebHome]] (which must be set in order to use this [[facet>>doc:Glossary.Facet.WebHome]]). This [[facet>>doc:Glossary.Facet.WebHome]] is used for a time sequence and indicates that ending point (if any) ofnthe sequence.
--|(% style="width:107px" %)minLength|(% style="width:872px" %)The minLength [[facet>>doc:Glossary.Facet.WebHome]] specifies the minimum and length of the value in characters.
--|(% style="width:107px" %)maxLength|(% style="width:872px" %)The maxLength [[facet>>doc:Glossary.Facet.WebHome]] specifies the maximum length of the value in characters.
--|(% style="width:107px" %)minValue|(% style="width:872px" %)The minValue [[facet>>doc:Glossary.Facet.WebHome]] is used for inclusive and exclusive ranges, indicating what the lower bound of the range is. If this is used with an inclusive range, a valid value will be greater than or equal to the value specified here. If the inclusive and exclusive data type is not specified (e.g., this [[facet>>doc:Glossary.Facet.WebHome]] is used with an integer data type), the value is assumed to be inclusive.
--|(% style="width:107px" %)maxValue|(% style="width:872px" %)The maxValue [[facet>>doc:Glossary.Facet.WebHome]] is used for inclusive and exclusive ranges, indicating what the upper bound of the range is. If this is used with an inclusive range, a valid value will be less than or equal to the value specified here. If the inclusive and exclusive data type is not specified (e.g., this [[facet>>doc:Glossary.Facet.WebHome]] is used with an integer data type), the value is assumed to be inclusive.
--|(% style="width:107px" %)[[Decimals>>doc:Glossary.Decimals.WebHome]]|(% style="width:872px" %)The [[decimals>>doc:Glossary.Decimals.WebHome]] [[facet>>doc:Glossary.Facet.WebHome]] indicates the number of characters allowed after the [[decimal>>doc:Glossary.Decimals.WebHome]] separator.
--|(% style="width:107px" %)pattern|(% style="width:872px" %)The pattern [[attribute>>doc:Glossary.Attribute.WebHome]] holds any regular expression permitted in the implementation syntax (e.g., W3C XML Schema).
++|(% style="width:107px" %)isSequence|(% style="width:872px" %)The isSequence facet indicates whether the values are intended to be ordered, and it may work in combination with the interval, startValue,and endValue facet or the timeInterval, [[startTime>>doc:IMElements.startTime.WebHome]], and endTime, facets. If this [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] holds a [[value>>doc:IMElements.value.WebHome]] of true, a start [[value>>doc:IMElements.value.WebHome]] or time and a numeric or time interval must be supplied. If an end [[value>>doc:IMElements.value.WebHome]] is not given, then the [[sequence>>doc:IMElements.sequence.WebHome]] continues indefinitely.
++|(% style="width:107px" %)interval|(% style="width:872px" %)The interval [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] specifies the permitted interval (increment) in a [[sequence>>doc:IMElements.sequence.WebHome]]. In order for this to be used, the isSequence [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] must have a [[value>>doc:IMElements.value.WebHome]] of true.
++|(% style="width:107px" %)startValue|(% style="width:872px" %)The startValue facet is used in conjunction with the isSequence and interval facets (which must be set in order to use this facet). This facet isused for a numeric [[sequence>>doc:IMElements.sequence.WebHome]] and indicates the starting point of the [[sequence>>doc:IMElements.sequence.WebHome]]. This [[value>>doc:IMElements.value.WebHome]] is mandatory for a numeric [[sequence>>doc:IMElements.sequence.WebHome]] to be expressed.
++|(% style="width:107px" %)endValue|(% style="width:872px" %)The endValue facet is used in conjunction with the isSequence and interval facets (which must be set in order to use this facet). This facet is used for a numeric [[sequence>>doc:IMElements.sequence.WebHome]] and indicates that ending point (if any) of the [[sequence>>doc:IMElements.sequence.WebHome]].
++|(% style="width:107px" %)timeInterval|(% style="width:872px" %)The timeInterval facet indicates the permitted duration in a time [[sequence>>doc:IMElements.sequence.WebHome]]. In order for this to be used, the isSequence facet must have a [[value>>doc:IMElements.value.WebHome]] of true.
++|(% style="width:107px" %)[[startTime>>doc:IMElements.startTime.WebHome]]|(% style="width:872px" %)The [[startTime>>doc:IMElements.startTime.WebHome]] facet is used in conjunction with the isSequence and timeInterval facets (which must be set in order to use this facet). Thisnattribute is used for a time [[sequence>>doc:IMElements.sequence.WebHome]] and indicates the start time of thensequence. This [[value>>doc:IMElements.value.WebHome]] is mandatory for a time [[sequence>>doc:IMElements.sequence.WebHome]] to be expressed.
++|(% style="width:107px" %)endTime|(% style="width:872px" %)The endTime facet is used in conjunction with the isSequence and timeInterval facets (which must be set in order to use this facet). This facet is used for a time [[sequence>>doc:IMElements.sequence.WebHome]] and indicates that ending point (if any) ofnthe [[sequence>>doc:IMElements.sequence.WebHome]].
++|(% style="width:107px" %)minLength|(% style="width:872px" %)The minLength facet specifies the minimum and length of the [[value>>doc:IMElements.value.WebHome]] in characters.
++|(% style="width:107px" %)maxLength|(% style="width:872px" %)The maxLength facet specifies the maximum length of the [[value>>doc:IMElements.value.WebHome]] in characters.
++|(% style="width:107px" %)minValue|(% style="width:872px" %)The minValue facet is used for inclusive and exclusive ranges, indicating what the lower bound of the range is. If this is used with an inclusive range, a valid [[value>>doc:IMElements.value.WebHome]] will be greater than or equal to the [[value>>doc:IMElements.value.WebHome]] specified here. If the inclusive and exclusive data [[type>>doc:IMElements.type.WebHome]] is not specified (e.g., this facet is used with an integer data [[type>>doc:IMElements.type.WebHome]]), the [[value>>doc:IMElements.value.WebHome]] is assumed to be inclusive.
++|(% style="width:107px" %)maxValue|(% style="width:872px" %)The maxValue facet is used for inclusive and exclusive ranges, indicating what the upper bound of the range is. If this is used with an inclusive range, a valid [[value>>doc:IMElements.value.WebHome]] will be less than or equal to the [[value>>doc:IMElements.value.WebHome]] specified here. If the inclusive and exclusive data [[type>>doc:IMElements.type.WebHome]] is not specified (e.g., this facet is used with an integer data [[type>>doc:IMElements.type.WebHome]]), the [[value>>doc:IMElements.value.WebHome]] is assumed to be inclusive.
++|(% style="width:107px" %)[[Decimals>>doc:sdmx:Glossary 2\.1.Decimals.WebHome]]|(% style="width:872px" %)The [[decimals>>doc:sdmx:Glossary 2\.1.Decimals.WebHome]] facet indicates the number of characters allowed after the [[decimal>>doc:sdmx:Glossary 2\.1.Decimals.WebHome]] separator.
++|(% style="width:107px" %)pattern|(% style="width:872px" %)The pattern [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] holds any regular expression permitted in the implementation syntax (e.g., W3C XML Schema).
  ----

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