Skip to Content

Changes for page 3 SDMX Base Package

Last modified by Helena K. on 2026/06/08 16:18
From version 29.4
edited by Helena K.
on 2026/06/04 18:02
Change comment: There is no comment for this version
To version 29.2
edited by Helena K.
on 2026/06/04 17:58
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -120,24 +120,24 @@
120 120  
121 121  ==== 3.4.2.1 Narrative ====
122 122  
123 -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).
123 +The FacetType and FacetValueType enumerations are used to specify the valid format of the content of a [[non-enumerated>>doc:IMElements.nonEnumerated.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).
124 124  
125 -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:
125 +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>>doc:IMElements.enumerated.WebHome]] as follows:
126 126  
127 -* 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.
128 -* 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.
127 +* 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>>doc:IMElements.version.WebHome]] 1.0 of the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Technical Standards.
128 +* Replace: Data/metadata is to be replaced and may also include additional data/metadata to be appended.
129 129  * Delete: Data/Metadata is to be deleted.
130 -* Information: Data and [[metadata>>doc:IMElements.metadata.WebHome]] are for information purposes.
130 +* Information: Data and metadata are for information purposes.
131 131  
132 -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).
132 +The ToValueType data [[type>>doc:IMElements.type.WebHome]] contains the [[attributes>>doc:Glossary.Attribute.WebHome]] to support transformations defined in the StructureMap (see Section 0).
133 133  
134 -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).
134 +The ConstraintRoleType data [[type>>doc:IMElements.type.WebHome]] contains the [[attributes>>doc:Glossary.Attribute.WebHome]] that identify the purpose of a [[Constraint>>doc:Glossary.Constraint.WebHome]] (allowableContent, actualContent).
135 135  
136 136  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]].
137 137  
138 138  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.
139 139  
140 -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”.
140 +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”.
141 141  
142 142  == 3.5 The Item Scheme Pattern ==
143 143  
... ... @@ -145,7 +145,7 @@
145 145  
146 146  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.
147 147  
148 -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.
148 +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.
149 149  
150 150  === 3.5.2 Class Diagram ===
151 151  
... ... @@ -157,15 +157,15 @@
157 157  
158 158  ==== 3.5.3.1 Narrative ====
159 159  
160 -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.
160 +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 are //[[Item>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.WebHome]]//s.
161 161  
162 -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".
162 +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:Glossary.Attribute.WebHome]] to "true".
163 163  
164 -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]]//.
164 +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 referenced in a DSD) 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]]//.
165 165  
166 -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.
166 +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 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 are relevant. In this case a partial Codelist can be constructed using the [[Constraint>>doc:Glossary.Constraint.WebHome]] mechanism explained later in this document.
167 167  
168 -//[[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]]//).
168 +//[[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]]//).
169 169  
170 170  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]]//.
171 171  
© Semantic R&D Group, 2026