Changes for page 12 Constraints

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27	27	==== 12.2.2.1 Narrative ====
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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:
	29	+Any artefact that inherits from the //ConstrainableArtefact// interface can have constraints defined. The artefacts that can have constraint metadata attached are:
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31		-[[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]
	31	+Dataflow
32	32	ProvisionAgreement
33	33	DataProvider
34	34	DataStructureDefinition
35		-[[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]]
	35	+Metadataflow
36	36	MetaDataProvider
37	37	MetadataProvisionAgreement
38	38	MetadataStructureDefinition
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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.
	40	+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.
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42	42	== 12.3 Constraints ==
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