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Changes for page 12 Constraints

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4 4  
5 5  == 12.1 Scope ==
6 6  
7 -The scope of this section is to describe the support in the metamodel for specifying both the access to and the content of a [[data source>>doc:sdmx:Glossary 2\.1.Data source.WebHome]]. The information may be stored in
7 +The scope of this section is to describe the support in the metamodel for specifying both the access to and the content of a data source. The information may be stored in a resource such as a registry for use by applications wishing to locate data and metadata which are available via the Internet. The //Constraint// is also used to specify a subset of a Codelist which may be used as a partial Codelist, relevant in the context of the artefact to which the //Constraint// is attached e.g., DataStructureDefinition, Dataflow, ProvisionAgreement, MetadataStructureDefinition, Metadataflow, MetadataProvisionAgreement.
8 8  
9 -a resource such as a registry for use by applications wishing to locate data and metadata which are available via the Internet. The //[[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]// is also used to specify a subset of a [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] which may be used as a partial [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]], relevant in the context of the [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] to which the //[[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]// is attached e.g., DataStructureDefinition, [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]], ProvisionAgreement, MetadataStructureDefinition, [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]], MetadataProvisionAgreement.
9 +Note that in this metamodel the term data provider refers to both data and metadata providers.
10 10  
11 -Note that in this metamodel the term [[data provider>>doc:sdmx:Glossary 2\.1.Data provider.WebHome]] refers to both data and metadata providers.
11 +The Dataflow and Metadataflow, themselves may be specified as containing only a subset of all the possible keys that could be derived from a DataStructureDefinition or MetadataStructureDefinition. Respectively, further subsets may be defined within a ProvisionAgreement and MetadataProvisionAgreement.
12 12  
13 -The [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] and [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]], themselves may be specified as containing only a subset of all the possible keys that could be derived from a DataStructureDefinition or MetadataStructureDefinition. Respectively, further subsets may be defined within a ProvisionAgreement and MetadataProvisionAgreement.
13 +These specifications are called //Constraint// in this model.
14 14  
15 -These specifications are called //[[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]// in this model.
16 -
17 17  == 12.2 Inheritance ==
18 18  
19 19  === 12.2.1 Class Diagram of Constrainable Artefacts - Inheritance ===
20 20  
21 -[[image:image67.png]]
19 +[[image:1749246701058-316.jpeg]]** **
22 22  
23 23  **Figure 41: Inheritance class diagram of constrainable and provisioning artefacts**
24 24  
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26 26  
27 27  ==== 12.2.2.1 Narrative ====
28 28  
29 -Any [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] that inherits from the //ConstrainableArtefact// interface can have [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] defined. The [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] that can have [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] metadata attached are:
27 +Any artefact that inherits from the //ConstrainableArtefact// interface can have constraints defined. The artefacts that can have constraint metadata attached are:
30 30  
31 -[[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]
29 +Dataflow
32 32  ProvisionAgreement
33 33  DataProvider
34 34  DataStructureDefinition
35 -[[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]]
33 +Metadataflow
36 36  MetaDataProvider
37 37  MetadataProvisionAgreement
38 38  MetadataStructureDefinition
39 39  
40 -Note that, because the //[[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]// can specify a subset of the [[component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] values implied by a specific //Structure// (such as a specific DataStructureDefinition or specific MetadataStructureDefinition), the //ConstrainableArtefact//s must be associated with a specific //Structure//. Therefore, whilst the //[[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]// itself may not be linked directly to a DataStructureDefinition or MetadataStructureDefinition, the [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] that it is constraining will be linked to a DataStructureDefinition or MetadataStructureDefinition. A DataProvider and MetadataProvider indirectly refernece DSDs and MSDs through their associated Data and Metadata [[Provision Agreements>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] as such these [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] are restricted to Cube Regions and are applicable only to the DSDs / MSDs which contain the Componets being restricted.
38 +Note that, because the //Constraint// can specify a subset of the component values implied by a specific //Structure// (such as a specific DataStructureDefinition or specific MetadataStructureDefinition), the //ConstrainableArtefact//s must be associated with a specific //Structure//. Therefore, whilst the //Constraint// itself may not be linked directly to a DataStructureDefinition or MetadataStructureDefinition, the artefact that it is constraining will be linked to a DataStructureDefinition or MetadataStructureDefinition. A DataProvider and MetadataProvider indirectly refernece DSDs and MSDs through their associated Data and Metadata Provision Agreements as such these Constraints are restricted to Cube Regions and are applicable only to the DSDs / MSDs which contain the Componets being restricted.
41 41  
42 42  == 12.3 Constraints ==
43 43  
44 44  === 12.3.1 Relationship Class Diagram – high level view ===
45 45  
46 -[[image:image68.png]]
44 +[[image:1749246701062-899.jpeg]]
47 47  
48 48  **Figure 42: Relationship class diagram showing constraint metadata**
49 49  
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115 115  Metadataflow
116 116  MetadataProvisionAgreement
117 117  MetadataSet
118 -MetadataStructureDefinition
116 +MetadataStructureDefini tion
119 119  ProvisionAgreement
120 120  //QueryDatasource//
121 121  SimpleDatasource
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164 164  A value of lessThan or lessThanOrEqual indicates that the value is the end or a range (exclusive or inclusive, respectively).
165 165  In the absence of the opposite bound being specified for the range, this bound is to be treated as infinite (e.g., any time period after the beginning of the provided time period for greaterThanOrEqual)
166 166  )))
165 +
166 +(% style="width:978.835px" %)
167 +|(% style="width:172px" %)**Class**|(% style="width:231px" %)**Feature**|(% style="width:572px" %)**Description**
167 167  |(% style="width:172px" %)CubeRegion|(% style="width:231px" %) |(% style="width:572px" %)A set of Components and their values that defines a subset or “slice” of the total range of possible content of a data structure to which the Constrainable Artefact is linked.
168 168  |(% style="width:172px" %) |(% style="width:231px" %)isIncluded|(% style="width:572px" %)Indicates whether the Cube Region is included in the constraint definition or excluded from the constraint definition.
169 169  |(% style="width:172px" %) |(% style="width:231px" %)+member|(% style="width:572px" %)Associates the set of Components that define the subset of values.
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