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1 -{{box title="**Contents**"}}
2 -{{toc/}}
3 -{{/box}}
1 +=== 7.1 Context ===
4 4  
5 -== 7.1 Context ==
3 +Besides the possibility to extend the components of Data Structure Definitions by metadata attributes defined in Metadata Structure Definitions, the SDMX metamodel allows metadata to describe any identifiable artefact. These metadata can be:
6 6  
7 -Besides the possibility to extend the [[components>>doc:sdmx:Glossary 2\.1.Component.WebHome]] of [[Data Structure Definitions>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] by metadata [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] defined in [[Metadata Structure Definitions>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]], the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] metamodel allows metadata to describe any [[identifiable artefact>>doc:sdmx:Glossary 2\.1.Identifiable artefact.WebHome]]. These metadata can be:
8 -
9 9  1. Exchanged without the need to embed it within the object that it is describing.
10 -1. Stored separately from the object that it describes, yet be linked to it (for example, an organisation has a [[metadata repository>>doc:sdmx:Glossary 2\.1.Metadata repository.WebHome]] which supports the dissemination of metadata resulting from metadata requests generated by systems or services that have access to the object for which the metadata pertains. This is common in web dissemination where additional metadata is available for viewing (and eventually downloading) by clicking on an “information” icon next to the object to which the metadata is attached).
11 -1. Versioned and maintained like [[structural metadata>>doc:sdmx:Glossary 2\.1.Structural metadata.WebHome]], but from Metadata Providers than Agencies.
6 +1. Stored separately from the object that it describes, yet be linked to it (for example, an organisation has a metadata repository which supports the dissemination of metadata resulting from metadata requests generated by systems or services that have access to the object for which the metadata pertains. This is common in web dissemination where additional metadata is available for viewing (and eventually downloading) by clicking on an “information” icon next to the object to which the metadata is attached).
7 +1. Versioned and maintained like structural metadata, but from Metadata Providers than Agencies.
12 12  1. Reported according to a defined structure.
13 13  
14 14  In order to achieve this, the following structures are modelled:
15 15  
16 -* The [[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] which comprises the metadata [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] that can be attached to the various object types (these [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] can be structured in a [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]]), together with any [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] that may apply (e.g., association to a [[code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] that contains valid values for the [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] when reported in a [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]),
17 -* The [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and/or Metadata [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]], which contains the objects to which the metadata are to be associated (attached),
18 -* The [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]], which contains reported metadata.
12 +* The Metadata Structure Definition which comprises the metadata attributes that can be attached to the various object types (these attributes can be structured in a hierarchy), together with any constraints that may apply (e.g., association to a code list that contains valid values for the attribute when reported in a metadata set),
13 +* The Metadataflow and/or Metadata Provision Agreement, which contains the objects to which the metadata are to be associated (attached),
14 +* The Metadata Set, which contains reported metadata.
19 19  
20 -== 7.2 Inheritance ==
16 +=== 7.2 Inheritance ===
21 21  
22 -=== 7.2.1 Introduction ===
18 +==== 7.2.1 Introduction ====
23 23  
24 -As with the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] Structure, 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
20 +As with the Data Structure Definition Structure, many of the constructs in this layer of the model inherit from the SDMX 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 and the MetadataSet.
25 25  
26 -packages. The diagram below shows the full inheritance tree for the classes concerned with the MetadataStructureDefinition, the MetadataProvisionAgreement, the [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and the MetadataSet.
22 +There are very few additional classes in the MetadataStructureDefinition package that do not themselves inherit from classes in the SDMX Base. In other words, the SDMX Base gives most of the structure of this sub model both in terms of associations and in terms of attributes. The relationship diagrams shown in this section show clearly when these associations are inherited from the SDMX Base (see the Appendix “A Short Guide to UML in the SDMX Information Model” to see the diagrammatic notation used to depict this).
27 27  
28 -There are very few additional classes in the MetadataStructureDefinition 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 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).
24 +==== 7.2.2 Class Diagram - Inheritance ====
29 29  
30 -=== 7.2.2 Class Diagram - Inheritance ===
26 +[[image:1749246462779-763.jpeg]]** **
31 31  
32 -[[image:image58.png]]
33 -
34 34  **Figure 32: Inheritance class diagram of the Metadata Structure Definition**
35 35  
36 -=== 7.2.3 Explanation of the Diagram ===
30 +==== 7.2.3 Explanation of the Diagram ====
37 37  
38 -==== 7.2.3.1 Narrative ====
32 +===== 7.2.3.1 Narrative =====
39 39  
40 40  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.
41 41  
42 -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. These are:
36 +The concrete classes in this part of the SDMX metamodel, which require to be maintained by Maintenance Agencies, all inherit from MaintainableArtefact. These are:
43 43  
44 -//StructureUsage// (concrete class is [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]])
38 +//StructureUsage// (concrete class is Metadataflow)
39 +
45 45  //Structure// (concrete class is MetadataStructureDefinition)
41 +
46 46  MetadataProvisionAgreement
47 47  
48 -These classes also inherit the identity and versioning [[facets>>doc:sdmx:Glossary 2\.1.Facet.WebHome]] of //IdentifiableArtefact//, //NameableArtefact// and //VersionableArtefact//.
44 +These classes also inherit the identity and versioning facets of //IdentifiableArtefact//, //NameableArtefact// and //VersionableArtefact//.
49 49  
50 -A //Structure// may contain several lists of [[components>>doc:sdmx:Glossary 2\.1.Component.WebHome]]. In this case the MetadataStructureDefinition acts as a list and contains //Component//s, i.e., MetadataAttributes.
46 +A //Structure// may contain several lists of components. In this case the MetadataStructureDefinition acts as a list and contains //Component//s, i.e., MetadataAttributes.
51 51  
52 -== 7.3 Metadata Structure Definition ==
48 +=== 7.3 Metadata Structure Definition ===
53 53  
54 -=== 7.3.1 Introduction ===
50 +==== 7.3.1 Introduction ====
55 55  
56 56  The diagrams and explanations in the rest of this section show how these concrete classes are related in order to support the required functionality.
57 57  
58 -=== 7.3.2 Structures Already Described ===
54 +==== 7.3.2 Structures Already Described ====
59 59  
60 -The MetadataStructureDefinition only contains MetadataAttributes, since target objects are contained in [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and MetadataProvisionAgreement, since [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] 3.0.
56 +The MetadataStructureDefinition only contains MetadataAttributes, since target objects are contained in Metadataflow and MetadataProvisionAgreement, since SDMX 3.0.
61 61  
62 -=== 7.3.3 Class Diagram – Relationship ===
58 +==== 7.3.3 Class Diagram – Relationship ====
63 63  
64 -[[image:image59.png]]
60 +[[image:1749246462786-944.jpeg]]
65 65  
66 66  **Figure 33: Relationship class diagram of the Metadata Structure Definition**
67 67  
68 -=== 7.3.4 Explanation of the Diagram ===
64 +==== 7.3.4 Explanation of the Diagram ====
69 69  
70 -==== 7.3.4.1 Narrative ====
66 +===== 7.3.4.1 Narrative =====
71 71  
72 72  In brief, a MetadataStructureDefinition (MSD) defines the MetadataAttributes, within an MetadataAttributeDescriptor, that can be associated with the objects identified in the Metadataflows and MetadataProvisionAgreements that refer to the MSD. The hierarchy of the MetadataAttributes is specified within the MetadataAttributeDescriptor.
73 73  
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83 83  
84 84  The definition of the various types of Representation can be found in the specification of the Base constructs. Note that if the Representation is non-enumerated then the association is to the ExtendedFacet (which allows for XHTML as a FacetValueType). If the Representation is enumerated, then is must use a Codelist.
85 85  
86 -The Metadataflow is linked to a MetadataStructureDefinition. The Metadataflow, in addition to the attributes 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.
82 +The Metadataflow is linked to a MetadataStructureDefinition. The Metadataflow, in addition to the attributes inherited from the Base classes, it also has a list of
87 87  
84 +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 +
88 88  The MetadataProvisionAgreement is linked to a Metadataflow. The former, like the Metadataflow, may have IdentifiableObjectSelection constructs to be used for specifying the proper targets for reference metadata.
89 89  
90 90  ==== 7.3.4.2 Definitions ====
91 91  
92 -(% style="width:975.835px" %)
93 -|**Class**|**Feature**|(% style="width:574px" %)**Description**
94 -|//StructureUsage//| |(% style="width:574px" %)See “SDMX Base”.
90 +|**Class**|**Feature**|**Description**
91 +|//StructureUsage//| |See “SDMX Base”.
95 95  |Metadataflow|(((
96 96  Inherits from:
94 +
97 97  //StructureUsage//
98 -)))|(% 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. Specifies possible targets for metadata, via the Identifiable Object Selection.
99 -| |/structure|(% style="width:574px" %)Associates a Metadata Structure Definition.
100 -|MetadataProvisionAgreement| |(% 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. Specifies possible targets for metadata, via the Identifiable Object Selection.
101 -|MetadataProvider| |(% style="width:574px" %)See Organisation Scheme.
102 -|IdentifiableObjectSelection| |(% style="width:574px" %)A list or wildcarded expression resolving into Identifiable Objects that metadata will refer to.
103 -|MetadataStructureDefinition|(((
96 +)))|Abstract concept (i.e., the structure without any metadata) of a flow of metadata that providers will provide for different reference periods. Specifies possible targets for metadata, via the Identifiable Object Selection.
97 +| |/structure|Associates a Metadata Structure Definition.
98 +|MetadataProvisionAgr eement| |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. Specifies possible targets for metadata, via the Identifiable Object Selection.
99 +|MetadataProvider| |See Organisation Scheme.
100 +|IdentifiableObjectSe lection| |A list or wildcarded expression resolving into Identifiable Objects that metadata will refer to.
101 +|MetadataStructureDef inition|(((
104 104  Inherits from:
103 +
105 105  //MaintainableArtefact//
106 -)))|(% style="width:574px" %)A collection of metadata concepts and their structure when used to collect or disseminate reference metadata.
107 -|MetadataAttributeDescriptor|(((
105 +)))|A collection of metadata concepts and their structure when used to collect or disseminate reference metadata.
106 +|MetadataAttributeDes criptor|(((
108 108  Inherits from:
109 109  
110 110  //ComponentList//
111 -)))|(% style="width:574px" %)Defines a set of concepts that comprises the Metadata Attributes to be reported.
112 -| |/components|(% style="width:574px" %)An association to the Metadata Attributes relevant to the Metadata Attribute Descriptor.
113 -|MetadataAttribute|// //|(% style="width:574px" %)Identifies a Concept for which a value may be reported in a Metadata Set.
114 -| |/hierarchy|(% style="width:574px" %)Association to one or more child Metadata Attribute.
115 -| |/conceptIdentity|(% style="width:574px" %)An association to the concept which defines the semantic of the attribute.
116 -| |isPresentational|(% style="width:574px" %)Indication that the Metadata Attribute is present for structural purposes (i.e. it has child attributes) and that no value for this attribute is expected to be reported in a Metadata Set.
117 -| |minOccurs maxOccurs|(% style="width:574px" %)(((
118 -Specifies how many occurrences of the Metadata Attribute may be reported at this point in the Metadataset.
110 +)))|Defines a set of concepts that comprises the Metadata Attributes to be reported.
111 +| |/components|An association to the Metadata Attributes relevant to the Metadata Attribute Descriptor.
112 +|MetadataAttribute|// //|Identifies a Concept for which a value may be reported in a Metadata Set.
113 +| |/hierarchy|Association to one or more child Metadata Attribute.
114 +| |/conceptIdentity|An association to the concept which defines the semantic of the attribute.
115 +| |isPresentational|Indication that the Metadata Attribute is present for structural purposes (i.e. it has child attributes) and that no value for this attribute is expected to be reported in a Metadata Set.
116 +| |minOccurs maxOccurs|(((
117 +Specifies how many occurrences of the
118 +
119 +Metadata Attribute may be reported at this point in the Metadataset.
119 119  )))
120 -| |/localRepresentation|(% style="width:574px" %)Associates a Representation that overrides any core representation specified for the Concept itself.
121 -|Representation| |(% style="width:574px" %)The representation of the Metadata Attribute.
121 +| |/localRepresentation|Associates a Representation that overrides any core representation specified for the Concept itself.
122 +|Representation| |The representation of the Metadata Attribute.
122 122  
123 -== 7.4 Metadata Set ==
124 124  
125 -=== 7.4.1 Class Diagram ===
126 126  
127 -[[image:image60.png]]
126 +=== 7.4 Metadata Set ===
128 128  
128 +==== 7.4.1 Class Diagram ====
129 +
130 +[[image:1749246462791-735.jpeg]]
131 +
129 129  **Figure 34: Relationship Class Diagram of the Metadata Set**
130 130  
131 -=== 7.4.2 Explanation of the Diagram ===
134 +==== 7.4.2 Explanation of the Diagram ====
132 132  
133 -==== 7.4.2.1 Narrative ====
136 +===== 7.4.2.1 Narrative =====
134 134  
135 135  Note that the MetadataSet must conform to the MetadataStructureDefinition associated to the Metadataflow or MetadataProvisionAgreement for which this MetadataSet is an “instance of metadata”. Whilst the model shows the association to the classes of the MetadataStructureDefinition, this is for conceptual purposes to show the link to the MetadataStructureDefinition. In the actual MetadataSet, as exchanged, there must, of course, be a reference to the MetadataStructureDefinition and optionally a Metadataflow or a MetadataProvisionAgreement, but the MetadataStructureDefinition is not necessarily exchanged with the metadata. Note that the MetadataStructureDefinition classes are shown also but are not a part of the MetadataSet itself.
136 136  
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150 150  
151 151  The CodedMetadataAttributeValue contains a value for a Code specified as the Representation for a MetadataAttribute in the MetadataStructureDefinition.
152 152  
153 -==== 7.4.2.2 Definitions ====
156 +===== 7.4.2.2 Definitions =====
154 154  
155 -(% style="width:980.835px" %)
156 -|**Class**|**Feature**|(% style="width:515px" %)**Description**
157 -|MetadataSet| |(% style="width:515px" %)Any organised collection of metadata.
158 -| |reportingBegin|(% style="width:515px" %)A specific time period in a known system of time periods that identifies the start period of a report.
159 -| |reportingEnd|(% style="width:515px" %)A specific time period in a known system of time periods that identifies the end period of a report.
160 -| |publicationYear|(% style="width:515px" %)Specifies the year of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
161 -| |publicationPeriod|(% style="width:515px" %)Specifies the period of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
162 -| |action|(% style="width:515px" %)Defines the action to be taken by the recipient system (information, append, replace, delete)
163 -| |+describedBy|(% style="width:515px" %)Associates a Metadataflow or a Metadata Provision Agreement to the Metadata Set.
164 -| |+structuredBy|(% style="width:515px" %)Associates the Metadata Attribute Descriptor of the Metadata Structure Definition that defines the structure of the Metadata Set. Note that this dependency explains that the Metadataset is structures according to the Metadata Structure Definition of the linked (by the +describedBy) Metadataflow or the Metadata Provision Agreement.
165 -| |+publishedBy|(% style="width:515px" %)Associates the Data Provider that reports/publishes the metadata.
166 -| |+attachesTo|(% style="width:515px" %)Associates the target identifiable objects to which metadata is to be attached.
167 -| |+metadata|(% style="width:515px" %)Associates the Metadata Attribute values which are to be associated with the object or objects identified by the Target Identifiable Objects(s).
168 -|TargetIdentifiableObject| |(% style="width:515px" %)Specifies the identification of an Identifiable object.
169 -| |+valueFor|(% style="width:515px" %)Associates the Target Identifiable Object being a part of the Identifiable Object Selection specified in the Dataflow or Metadata Provision Agreement.
170 -|StructureRef| |(% style="width:515px" %)Contains the identification of an Identifiable object.
171 -| |structureType|(% style="width:515px" %)The object type of the target object.
172 -|IdentifiableArtefactRef| |(% style="width:515px" %)Identification of the target object.
173 -| |+containedObject|(% style="width:515px" %)Association to a contained object in a hierarchy of Identifiable Objects such as a Transition in a Process Step.
174 -|//MetadataAttributeValue//|(((
158 +|**Class**|**Feature**|**Description**
159 +|MetadataSet| |Any organised collection of metadata.
160 +| |reportingBegin|A specific time period in a known system of time periods that identifies the start period of a report.
161 +| |reportingEnd|A specific time period in a known system of time periods that identifies the end period of a report.
162 +| |publicationYear|Specifies the year of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
163 +| |publicationPeriod|Specifies the period of publication of the data or metadata in terms of whatever provisioning agreements might be in force.
164 +| |action|Defines the action to be taken by the recipient system (information, append, replace, delete)
165 +| |+describedBy|Associates a Metadataflow or a Metadata Provision Agreement to the Metadata Set.
166 +| |+structuredBy|Associates the Metadata Attribute Descriptor of the Metadata Structure Definition that defines the structure of the Metadata Set. Note that this dependency explains that the Metadataset is structures according to the Metadata Structure Definition of the linked (by the +describedBy) Metadataflow or the Metadata Provision Agreement.
167 +| |+publishedBy|Associates the Data Provider that reports/publishes the metadata.
168 +| |+attachesTo|Associates the target identifiable objects to which metadata is to be attached.
169 +| |+metadata|Associates the Metadata Attribute values which are to be associated with the object or objects identified by the Target Identifiable Objects(s).
170 +|TargetIdentifiableO bject| |Specifies the identification of an Identifiable object.
171 +| |+valueFor|Associates the Target Identifiable Object being a part of the Identifiable Object Selection specified in the Dataflow or Metadata Provision Agreement.
172 +|StructureRef| |Contains the identification of an Identifiable object.
173 +| |structureType|The object type of the target object.
174 +|IdentifiableArtefac tRef| |Identification of the target object.
175 +| |+containedObject|Association to a contained object in a hierarchy of Identifiable Objects such as a Transition in a Process Step.
176 +|//MetadataAttributeVa lue//|(((
175 175  Abstract class
178 +
176 176  Sub classes are:
177 -//UncodedMetadataAttributeValue//
178 -CodedMetadataAttributeValue
179 -)))|(% style="width:515px" %)The value for a Metadata Attribute.
180 +
181 +//UncodedMetadataAttrib uteValue//
182 +
183 +CodedMetadataAttribut eValue
184 +)))|The value for a Metadata Attribute.
180 180  | |(((
181 181  +valueFor
187 +
182 182  (inherited from the
189 +
183 183  //AttributeValue//)
184 -)))|(% style="width:515px" %)(((
191 +)))|(((
185 185  Association to the Metadata Attribute in the Metadata Structure Definition that identifies the Concept and allowed Representation for the Metadata Attribute value.
193 +
186 186  Note that this is a conceptual association showing the link to the MSD construct. The syntax for the Metadata Attribute value will state, in some form, the id of the Metadata Attribute.
187 187  )))
188 -| |+child|(% style="width:515px" %)Association to a child Metadata Attribute value consistent with the hierarchy defined in the MSD for the Metadata Attribute for which this child is a Metadata Attribute value.
189 -|//UncodedMetadataAttributeValue//|(((
196 +| |+child|Association to a child Metadata Attribute value consistent with the hierarchy defined in the MSD for the Metadata Attribute for which this child is a Metadata Attribute value.
197 +|//UncodedMetadataAttr ibuteValue//|(((
190 190  Inherits from
191 -//MetadataAttributeValue//
199 +
200 +//MetadataAttributeValu e//
201 +
192 192  Sub class:
203 +
193 193  XHTMLAttributeValue
205 +
194 194  TextAttributeValue
195 -OtherUncodedAttributeValue
196 -)))|(% style="width:515px" %)The content of a Metadata Attribute value where this is textual.
197 -|XHTMLAttributeValue| |(% style="width:515px" %)This contains XHTML
198 -| |value|(% style="width:515px" %)The string value of the XHTML
199 -|TextAttributeValue| |(% style="width:515px" %)This value of a Metadata Attribute value where the content is human-readable text.
200 -| |text|(% style="width:515px" %)The string value is text. This can be present in multiple language versions.
201 -|OtherUncodedAttributeValue| |(% style="width:515px" %)The value of a Metadata Attribute value where the content is not of humanreadable text.
202 -| |value|(% style="width:515px" %)A text string that is consistent in format to that defined in the Representation of the Metadata Attribute for which this is a Metadata Attribute value.
203 -| |startTime|(% style="width:515px" %)This attribute is only used if the textFormat of the Metadata Attribute is of the Timespan type in the Metadata Structure Definition (in which case the value field takes a duration).
204 -|CodedMetadataAttributeValue|(((
207 +
208 +OtherUncodedAttribute
209 +
210 +Value
211 +)))|The content of a Metadata Attribute value where this is textual.
212 +|XHTMLAttributeValue| |This contains XHTML
213 +| |value|The string value of the XHTML
214 +|TextAttributeValue| |This value of a Metadata Attribute value where the content is human-readable text.
215 +| |text|The string value is text. This can be present in multiple language versions.
216 +|OtherUncodedAttribu teValue| |The value of a Metadata Attribute value where the content is not of humanreadable text.
217 +| |value|A text string that is consistent in format to that defined in the Representation of the Metadata Attribute for which this is a Metadata Attribute value.
218 +| |startTime|This attribute is only used if the textFormat of the Metadata Attribute is of the Timespan type in the Metadata Structure Definition (in which case the value field takes a duration).
219 +|CodedMetadataAttrib uteValue|(((
205 205  Inherits from
206 -//MetadataAttributeValue//
207 -)))|(% style="width:515px" %)The content of a Metadata Attribute value that is taken from a Code in a Code list.
208 -| |value|(% style="width:515px" %)The Code value of the Metadata Attribute value.
209 -| |+value|(% style="width:515px" %)(((
221 +
222 +//MetadataAttributeValu e//
223 +)))|The content of a Metadata Attribute value that is taken from a Code in a Code list.
224 +| |value|The Code value of the Metadata Attribute value.
225 +| |+value|(((
210 210  Association to a Code in the Code list specified in the Representation of the Metadata Attribute for which this Metadata Attribute value is the value.
211 211  
212 212  Note that this shows the conceptual link to the Item that is the value. In reality, the value itself will be contained in the Coded Metadata Attribute Value.
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