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21 21  
22 22  === 7.2.1 Introduction ===
23 23  
24 -As with the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] [[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]], many of the constructs in this layer of the model inherit from the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base layer. Therefore, it is necessary to study both the inheritance and the relationship diagrams to understand the functionality of individual packages. The diagram below shows the full inheritance tree for the classes concerned with the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]], the [[MetadataProvisionAgreement>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataProvisionAgreement.WebHome]], the [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]] and the [[MetadataSet>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataSet.WebHome]].
24 +As with the [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]] Structure, many of the constructs in this layer of the model inherit from the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base layer. Therefore, it is necessary to study both the inheritance and the relationship diagrams to understand the functionality of individual packages. The diagram below shows the full inheritance tree for the classes concerned with the MetadataStructureDefinition, the MetadataProvisionAgreement, the [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and the MetadataSet.
25 25  
26 -There are very few additional classes in the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] package that do not themselves inherit from classes in the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base. In other words, the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base gives most of the [[structure>>doc:IMElements.structure.WebHome]] of this sub model both in terms of associations and in terms of [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]. The relationship diagrams shown in this section show clearly when these associations are inherited from the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base (see the Appendix “A Short Guide to UML in the [[SDMX Information Model>>doc:sdmx:Glossary 2\.1.SDMX Information Model.WebHome]]” to see the diagrammatic notation used to depict this).
26 +There are very few additional classes in the MetadataStructureDefinition package that do not themselves inherit from classes in the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base. In other words, the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base gives most of the structure of this sub model both in terms of associations and in terms of [[attributes>>doc:Glossary.Attribute.WebHome]]. The relationship diagrams shown in this section show clearly when these associations are inherited from the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base (see the Appendix “A Short Guide to UML in the [[SDMX Information Model>>doc:Glossary.SDMX Information Model.WebHome]]” to see the diagrammatic notation used to depict this).
27 27  
28 28  === 7.2.2 Class Diagram - Inheritance ===
29 29  
... ... @@ -37,15 +37,15 @@
37 37  
38 38  It is important to the understanding of the relationship class diagrams presented in this section to identify the concrete classes that inherit from the abstract classes.
39 39  
40 -The concrete classes in this part of the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metamodel, which require to be maintained by [[Maintenance Agencies>>doc:sdmx:Glossary 2\.1.Maintenance agency.WebHome]], all inherit from [[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]. These are:
40 +The concrete classes in this part of the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] metamodel, which require to be maintained by [[Maintenance Agencies>>doc:Glossary.Maintenance agency.WebHome]], all inherit from MaintainableArtefact. These are:
41 41  
42 -//[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]// (concrete class is [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]])
43 -//[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// (concrete class is [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]])
44 -[[MetadataProvisionAgreement>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataProvisionAgreement.WebHome]]
42 +//StructureUsage// (concrete class is [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]])
43 +//Structure// (concrete class is MetadataStructureDefinition)
44 +MetadataProvisionAgreement
45 45  
46 -These classes also inherit the identity and versioning facets of //[[IdentifiableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.WebHome]]//, //[[NameableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.WebHome]]// and //[[VersionableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.WebHome]]//.
46 +These classes also inherit the identity and versioning [[facets>>doc:Glossary.Facet.WebHome]] of //IdentifiableArtefact//, //NameableArtefact// and //VersionableArtefact//.
47 47  
48 -A //[[Structure>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.WebHome]]// may contain several lists of [[components>>doc:IMElements.components.WebHome]]. In this case the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] acts as a list and contains //Component//s, i.e., MetadataAttributes.
48 +A //Structure// may contain several lists of [[components>>doc:Glossary.Component.WebHome]]. In this case the MetadataStructureDefinition acts as a list and contains //Component//s, i.e., MetadataAttributes.
49 49  
50 50  == 7.3 Metadata Structure Definition ==
51 51  
... ... @@ -55,7 +55,7 @@
55 55  
56 56  === 7.3.2 Structures Already Described ===
57 57  
58 -The [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] only contains MetadataAttributes, since target objects are contained in [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]] and [[MetadataProvisionAgreement>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataProvisionAgreement.WebHome]], since [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 3.0.
58 +The MetadataStructureDefinition only contains MetadataAttributes, since target objects are contained in [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and MetadataProvisionAgreement, since [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] 3.0.
59 59  
60 60  === 7.3.3 Class Diagram – Relationship ===
61 61  
... ... @@ -67,56 +67,56 @@
67 67  
68 68  ==== 7.3.4.1 Narrative ====
69 69  
70 -In brief, a [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] ([[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]]) defines the MetadataAttributes, within an [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]], that can be associated with the objects identified in the Metadataflows and MetadataProvisionAgreements that refer to the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]]. The [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] of the MetadataAttributes is specified within the [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]].
70 +In brief, a MetadataStructureDefinition ([[MSD>>doc:Glossary.Metadata structure definition.WebHome]]) defines the MetadataAttributes, within an MetadataAttributeDescriptor, that can be associated with the objects identified in the [[Metadataflows>>doc:Glossary.Metadataflow.WebHome]] and MetadataProvisionAgreements that refer to the [[MSD>>doc:Glossary.Metadata structure definition.WebHome]]. The [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] of the MetadataAttributes is specified within the MetadataAttributeDescriptor.
71 71  
72 -The [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]] comprises a set of MetadataAttributes – these can be defined as a [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]]. Each [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] identifies a [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] that is reported or disseminated in a [[MetadataSet>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataSet.WebHome]] (/conceptIdentity) that uses this [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]. Different MetadataAttributes in the same [[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]] can use Concepts from different ConceptSchemes. Note that a [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] does not link to a [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] that defines its [[role>>doc:IMElements.role.WebHome]] in this [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] (i.e., the [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] does not play a [[role>>doc:IMElements.role.WebHome]]).
72 +The MetadataAttributeDescriptor comprises a set of MetadataAttributes – these can be defined as a [[hierarchy>>doc:Glossary.Hierarchy.WebHome]]. Each MetadataAttribute identifies a (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) that is reported or disseminated in a MetadataSet (/conceptIdentity) that uses this MetadataStructureDefinition. Different MetadataAttributes in the same MetadataAttributeDescriptor can use (% style="color:#e74c3c" %)[[Concepts>>doc:Glossary.Concept.WebHome]](%%) from different ConceptSchemes. Note that a MetadataAttribute does not link to a (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) that defines its role in this MetadataStructureDefinition (i.e., the MetadataAttribute does not play a role).
73 73  
74 -The [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] can be specified as having multiple occurrences and/or specified as being mandatory (minOccurs=1 or more) or optional (minOccurs=0). A hierarchical [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] can be defined by specifying a [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] for a [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]].
74 +The MetadataAttribute can be specified as having multiple occurrences and/or specified as being mandatory (minOccurs=1 or more) or optional (minOccurs=0). A hierarchical MetadataStructureDefinition can be defined by specifying a [[hierarchy>>doc:Glossary.Hierarchy.WebHome]] for a MetadataAttribute.
75 75  
76 -It can be seen from this, that the specification of the objects to which a [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] can be attached is indirect: the MetadataAttributes are defined in a [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]], but they are attached to one or more IdentifiableArtefacts as defined in the Metadataflows or
76 +It can be seen from this, that the specification of the objects to which a MetadataAttribute can be attached is indirect: the MetadataAttributes are defined in a MetadataStructureDefinition, but they are attached to one or more IdentifiableArtefacts as defined in the [[Metadataflows>>doc:Glossary.Metadataflow.WebHome]] or
77 77  
78 -MetadataProvisionAgreements. This gives a flexible mechanism by which the actual objects need not be defined in concrete terms in the model but are defined dynamically by the [[IdentifiableObjectSelection>>doc:IMElements.IdentifiableObjectSelection.WebHome]]. In this way, the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] can be used to define any set of MetadataAttributes regardless of the objects to which they can be attached.
78 +MetadataProvisionAgreements. This gives a flexible mechanism by which the actual objects need not be defined in concrete terms in the model but are defined dynamically by the IdentifiableObjectSelection. In this way, the MetadataStructureDefinition can be used to define any set of MetadataAttributes regardless of the objects to which they can be attached.
79 79  
80 -Each [[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]] can have a [[Representation>>doc:IMElements.Representation.WebHome]] specified (using the /localRepresentation association). If this is not specified in the [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]] then the [[Representation>>doc:IMElements.Representation.WebHome]] is taken from that defined for the [[Concept>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Concept.WebHome]] (the [[coreRepresentation>>doc:IMElements.coreRepresentation.WebHome]] association).
80 +Each MetadataAttribute can have a [[Representation>>doc:Glossary.Representation.WebHome]] specified (using the /localRepresentation association). If this is not specified in the MetadataStructureDefinition then the [[Representation>>doc:Glossary.Representation.WebHome]] is taken from that defined for the (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) (the coreRepresentation association).
81 81  
82 -The definition of the various types of [[Representation>>doc:IMElements.Representation.WebHome]] can be found in the specification of the Base constructs. Note that if the [[Representation>>doc:IMElements.Representation.WebHome]] is non-[[enumerated>>doc:IMElements.enumerated.WebHome]] then the association is to the [[ExtendedFacet>>doc:IMElements.ExtendedFacet.WebHome]] (which allows for XHTML as a FacetValueType). If the [[Representation>>doc:IMElements.Representation.WebHome]] is [[enumerated>>doc:IMElements.enumerated.WebHome]], then is must use a [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]].
82 +The definition of the various types of [[Representation>>doc:Glossary.Representation.WebHome]] can be found in the specification of the Base constructs. Note that if the [[Representation>>doc:Glossary.Representation.WebHome]] is non-enumerated then the association is to the ExtendedFacet (which allows for XHTML as a FacetValueType). If the [[Representation>>doc:Glossary.Representation.WebHome]] is enumerated, then is must use a Codelist.
83 83  
84 -The [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]] is linked to a [[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]. The [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]], in addition to the [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] inherited from the Base classes, it also has a list of [[IdentifiableObjectSelection>>doc:IMElements.IdentifiableObjectSelection.WebHome]] constructs, which resolve into the IdentifiableArtefacts that the Metadatasets will refer to. The [[IdentifiableObjectSelection>>doc:IMElements.IdentifiableObjectSelection.WebHome]] acts like a reference, but it may also include wildcarding part of the reference terms.
84 +The [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] is linked to a MetadataStructureDefinition. The [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]], in addition to the [[attributes>>doc:Glossary.Attribute.WebHome]] inherited from the Base classes, it also has a list of IdentifiableObjectSelection constructs, which resolve into the IdentifiableArtefacts that the Metadatasets will refer to. The IdentifiableObjectSelection acts like a reference, but it may also include wildcarding part of the reference terms.
85 85  
86 -The [[MetadataProvisionAgreement>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataProvisionAgreement.WebHome]] is linked to a [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]]. The former, like the [[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]], may have [[IdentifiableObjectSelection>>doc:IMElements.IdentifiableObjectSelection.WebHome]] constructs to be used for specifying the proper targets for [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]].
86 +The MetadataProvisionAgreement is linked to a [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]. The former, like the [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]], may have IdentifiableObjectSelection constructs to be used for specifying the proper targets for reference metadata.
87 87  
88 88  ==== 7.3.4.2 Definitions ====
89 89  
90 90  (% style="width:975.835px" %)
91 91  |**Class**|**Feature**|(% style="width:574px" %)**Description**
92 -|//[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]//| |(% style="width:574px" %)See “[[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base”.
93 -|[[Metadataflow>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.Metadataflow.WebHome]]|(((
92 +|//StructureUsage//| |(% style="width:574px" %)See “[[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Base”.
93 +|[[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]|(((
94 94  Inherits from:
95 -//[[StructureUsage>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.StructureUsage.WebHome]]//
96 -)))|(% style="width:574px" %)Abstract concept (i.e., the structure without any metadata) of a flow of metadata that providers will provide for different [[reference periods>>doc:sdmx:Glossary 2\.1.Reference period.WebHome]]. Specifies possible targets for metadata, via the Identifiable Object Selection.
97 -| |/[[structure>>doc:IMElements.structure.WebHome]]|(% style="width:574px" %)Associates a [[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]].
98 -|[[MetadataProvisionAgreement>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.MetadataProvisionAgreement.WebHome]]| |(% style="width:574px" %)Links the Metadata Provider to the relevant Structure Usage (i.e., Metadataflow) for which the provider supplies metadata. The agreement may constrain the scope of the metadata that can be provided, by means of a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]. Specifies possible targets for metadata, via the Identifiable Object Selection.
99 -|[[MetadataProvider>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.Item.Organisation.MetadataProvider.WebHome]]| |(% style="width:574px" %)See Organisation Scheme.
100 -|[[IdentifiableObjectSelection>>doc:IMElements.IdentifiableObjectSelection.WebHome]]| |(% style="width:574px" %)A list or wildcarded expression resolving into Identifiable Objects that metadata will refer to.
101 -|[[MetadataStructureDefinition>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.Structure.MetadataStructureDefinition.WebHome]]|(((
95 +//StructureUsage//
96 +)))|(% style="width:574px" %)Abstract concept (i.e., the structure without any metadata) of a flow of metadata that providers will provide for different [[reference periods>>doc:Glossary.Reference period.WebHome]]. Specifies possible targets for metadata, via the Identifiable Object Selection.
97 +| |/structure|(% style="width:574px" %)Associates a [[Metadata Structure Definition>>doc:Glossary.Metadata structure definition.WebHome]].
98 +|MetadataProvisionAgreement| |(% style="width:574px" %)Links the Metadata Provider to the relevant Structure Usage (i.e., [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]) for which the provider supplies metadata. The agreement may constrain the scope of the metadata that can be provided, by means of a (% style="color:#e74c3c" %)[[Constraint>>doc:Glossary.Constraint.WebHome]](%%). Specifies possible targets for metadata, via the Identifiable Object Selection.
99 +|MetadataProvider| |(% style="width:574px" %)See Organisation Scheme.
100 +|IdentifiableObjectSelection| |(% style="width:574px" %)A list or wildcarded expression resolving into Identifiable Objects that metadata will refer to.
101 +|MetadataStructureDefinition|(((
102 102  Inherits from:
103 -//[[MaintainableArtefact>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.NameableArtefact.VersionableArtefact.MaintainableArtefact.WebHome]]//
104 -)))|(% style="width:574px" %)A collection of metadata concepts and their structure when used to collect or disseminate [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]].
105 -|[[MetadataAttributeDescriptor>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.MetadataAttributeDescriptor.WebHome]]|(((
103 +//MaintainableArtefact//
104 +)))|(% style="width:574px" %)A collection of metadata concepts and their structure when used to collect or disseminate reference metadata.
105 +|MetadataAttributeDescriptor|(((
106 106  Inherits from:
107 107  
108 -//[[ComponentList>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.ComponentList.WebHome]]//
109 -)))|(% style="width:574px" %)Defines a set of concepts that comprises the Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to be reported.
110 -| |/components|(% style="width:574px" %)An association to the Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] relevant to the Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] Descriptor.
111 -|[[MetadataAttribute>>doc:IMElements.AnnotableArtefact.IdentifiableArtefact.Component.AttributeComponent.MetadataAttribute.WebHome]]|// //|(% style="width:574px" %)Identifies a Concept for which a value may be reported in a [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]].
112 -| |/hierarchy|(% style="width:574px" %)Association to one or more child Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
113 -| |/conceptIdentity|(% style="width:574px" %)An association to the concept which defines the semantic of the [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
114 -| |[[isPresentational>>doc:IMElements.isPresentational.WebHome]]|(% style="width:574px" %)Indication that the Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is present for structural purposes (i.e. it has child [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]) and that no value for this [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] is expected to be reported in a [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]].
115 -| |[[minOccurs>>doc:IMElements.minOccurs.WebHome]] [[maxOccurs>>doc:IMElements.maxOccurs.WebHome]]|(% style="width:574px" %)(((
116 -Specifies how many occurrences of the Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] may be reported at this point in the Metadataset.
108 +//ComponentList//
109 +)))|(% style="width:574px" %)Defines a set of concepts that comprises the Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] to be reported.
110 +| |/components|(% style="width:574px" %)An association to the Metadata [[Attributes>>doc:Glossary.Attribute.WebHome]] relevant to the Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]] Descriptor.
111 +|MetadataAttribute|// //|(% style="width:574px" %)Identifies a (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) for which a value may be reported in a [[Metadata Set>>doc:Glossary.Metadata set.WebHome]].
112 +| |/hierarchy|(% style="width:574px" %)Association to one or more child Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]].
113 +| |/conceptIdentity|(% style="width:574px" %)An association to the concept which defines the semantic of the [[attribute>>doc:Glossary.Attribute.WebHome]].
114 +| |isPresentational|(% style="width:574px" %)Indication that the Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]] is present for structural purposes (i.e. it has child [[attributes>>doc:Glossary.Attribute.WebHome]]) and that no value for this [[attribute>>doc:Glossary.Attribute.WebHome]] is expected to be reported in a [[Metadata Set>>doc:Glossary.Metadata set.WebHome]].
115 +| |minOccurs maxOccurs|(% style="width:574px" %)(((
116 +Specifies how many occurrences of the Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]] may be reported at this point in the Metadataset.
117 117  )))
118 -| |/localRepresentation|(% style="width:574px" %)Associates a Representation that overrides any core representation specified for the Concept itself.
119 -|[[Representation>>doc:IMElements.Representation.WebHome]]| |(% style="width:574px" %)The representation of the Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
118 +| |/localRepresentation|(% style="width:574px" %)Associates a [[Representation>>doc:Glossary.Representation.WebHome]] that overrides any core [[representation>>doc:Glossary.Representation.WebHome]] specified for the (% style="color:#e74c3c" %)[[Concept>>doc:Glossary.Concept.WebHome]](%%) itself.
119 +|[[Representation>>doc:Glossary.Representation.WebHome]]| |(% style="width:574px" %)The [[representation>>doc:Glossary.Representation.WebHome]] of the Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]].
120 120  
121 121  == 7.4 Metadata Set ==
122 122  
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