Wiki source code of Change History

Last modified by Helena K. on 2026/06/08 15:01

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1.1	2	Revision History
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	5	\|(% style="width:169px" %)Revision\|(% style="width:190px" %)Date\|(% style="width:507px" %)Contents
	6	\|(% style="width:169px" %)DRAFT 1.0\|(% style="width:190px" %)December 2025\|(% style="width:507px" %)Draft release updated for SDMX 3.1 for public consultation
	7	\|(% style="width:169px" %)1.0\|(% style="width:190px" %)May 2025\|(% style="width:507px" %)Public Release for SDMX 3.1
1.1	8
10.3	9	__Version 1.0 – initial release September 2004.__
1.1	10
10.3	11	__Version 2.0 – release November 2005__
1.1	12
	13	Major functional enhancements by addition of new packages:
	14
15.3	15	[[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]]
	16	[[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]
	17	[[Hierarchical Code>>doc:sdmx:Glossary 2\.1.Hierarchical code.WebHome]] Scheme
1.1	18	Data and Metadata Provisioning
15.3	19	[[Structure Set>>doc:sdmx:Glossary 2\.1.Structure set.WebHome]] and Mappings
1.1	20	Transformations and Expressions
	21	Process and Transitions
	22
15.3	23	Re-engineering of some [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base structures to give more functionality:
1.1	24
15.3	25	[[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] and Item can have properties – this gives support for complex [[hierarchical code>>doc:sdmx:Glossary 2\.1.Hierarchical code.WebHome]] schemes (where the property can be used to sequence [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] in scheme), and [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] mapping tables (where the property can give additional information about the [[map>>doc:sdmx:Glossary 2\.1.Map.WebHome]] between the two schemes and the between two Items)
	26	revised Organisation pattern to support maintained schemes of organisations, such as a data providermodified [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] Structure pattern to support identification of roles played by [[components>>doc:sdmx:Glossary 2\.1.Component.WebHome]] and the attachment of [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] change to inheritance to enable more [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] to be identifiable and versionable
	27	Introduction of new types of [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]]:
1.1	28
15.3	29	* Object Type Scheme to specify object types in support of the [[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] (principally the object types (classes) in this Information Model)
15.2	30	* Type Scheme to specify types other than object type
15.3	31	* A generic [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Association to specify the association between Items in two or more [[Item Schemes>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]], where such associations cannot be described in the [[Structure Set>>doc:sdmx:Glossary 2\.1.Structure set.WebHome]] and Transformation.
1.1	32
15.3	33	The [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] is introduced as a synonym for Key Family though the term Key Family is retained and used in this specification.
1.1	34
15.3	35	Modification to [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] ([[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]) to
1.1	36
	37	align the cross sectional structures with the functionality of the schema
15.3	38	support [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] extension (i.e. to derive and extend a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] from another [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]), thus supporting the definition of a related “set” of key families
	39	distinguish between data [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] (which are described in a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]) from metadata [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] (which are described in a [[metadata structure definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]])
	40	attach data [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to specific [[identifiable artefacts>>doc:sdmx:Glossary 2\.1.Identifiable artefact.WebHome]] (formally this was supported by attachable [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]])
1.1	41
15.3	42	Domain [[Category Scheme>>doc:sdmx:Glossary 2\.1.Category scheme.WebHome]] re-named [[Category Scheme>>doc:sdmx:Glossary 2\.1.Category scheme.WebHome]] to better reflect the multiple usage of this type of scheme (e.g. subject matter domain, [[reporting taxonomy>>doc:sdmx:Glossary 2\.1.Reporting taxonomy.WebHome]]).
1.1	43
15.4	44	[[Concept Scheme>>doc:sdmx:Glossary 2\.1.Concept scheme.WebHome]] enhanced to allow specification of the [[representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] of the [[Concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]]. This specification is the default (or core) [[representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] and can be overridden by a construct that uses it (such as a [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] in a [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]).
1.1	45
15.4	46	Revision of cross sectional [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] to reflect the functionality of the version 1.0 schema.
8.5	47
1.1	48	Revision of Actors and Use Cases to reflect better the functionality supported.
	49
10.3	50	__Version 2.1 – release April 2011__
1.1	51
	52	The purpose of this revision is threefold:
	53
	54	* To introduce requested changes to functionality
	55	* To align the model and syntax implementations more closely (note, however, that the model remains syntax neutral)
15.2	56	* To correct errors in version 2.0
1.1	57
15.4	58	//[[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] Base//
1.1	59
14.2	60	//Basic inheritance and patterns//
	61
15.4	62	~1. The following [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] are added to Maintainable:
1.1	63
15.4	64	i) [[isExternalReference>>doc:sdmx:Glossary 2\.1.isExternalReference.WebHome]]
15.2	65	ii) structure URL
	66	iii) serviceURL
1.1	67
15.4	68	1. Added [[Nameable Artefact>>doc:sdmx:Glossary 2\.1.Nameable artefact.WebHome]] and moved the Name and Description associations from [[Identifiable Artefact>>doc:sdmx:Glossary 2\.1.Identifiable artefact.WebHome]] to [[Nameable Artefact>>doc:sdmx:Glossary 2\.1.Nameable artefact.WebHome]]. This allows an [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] to be identified (with id and urn) without the need to specify a Name.
	69	1. Removed any inheritance from [[Versionable Artefact>>doc:sdmx:Glossary 2\.1.Versionable artefact.WebHome]] with the exception of [[Maintainable Artefact>>doc:sdmx:Glossary 2\.1.Maintainable artefact.WebHome]] – this means that only Maintainable objects can be versioned, and objects contained in a maintainable object cannot be independently versioned.
15.2	70	1. Renamed MaintenanceAgency to Agency 0 this is its name in the schema and the URN.
15.4	71	1. Removed abstract class Association as a subclass of Item (as these association types are not maintained in [[Item Schemes>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]]). Specific associations are modelled explicitly (e.g.[[Categorisation>>doc:sdmx:Glossary 2\.1.Categorisation.WebHome]], ItemScheme, Item).
1.1	72	1. Added ActionType to data types.
15.4	73	1. Removed Coded [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] and Uncoded [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] and all subclasses (e.g. Coded Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] and Uncoded Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]) as the “[[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]]” is more complex than just a distinction between coded and uncoded.
	74	1. Added [[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] to the [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]]. Removed association to Type.
	75	1. Removed [[concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]] role association (to Item) as roles are identified by a relationship to a [[Concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]].
	76	1. Removed abstract class [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] as both Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] and Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] have different properties. Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] and Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] inherit directly from [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]].
	77	1. isPartial [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] added to [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] to support partial [[Item Schemes>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] (e.g. partial [[Code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]]).
1.1	78
15.4	79	//[[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]]//
1.1	80
15.4	81	1. Removed interval and enumeration from [[Facet>>doc:sdmx:Glossary 2\.1.Facet.WebHome]].
	82	1. added facetValueType to [[Facet>>doc:sdmx:Glossary 2\.1.Facet.WebHome]].
15.2	83	1. Re-named DataType to facetValueType.
	84	1. Added observationalTimePeriod, inclusiveValueRange and exclusiveValueRange to facetValueType.
15.4	85	1. Added ExtendedFacetType as a sub class of FacetType. This includes Xhtml as a [[facet>>doc:sdmx:Glossary 2\.1.Facet.WebHome]] type to support this as an allowed [[representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] for a Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]
1.1	86
	87	//Organisations//
	88
15.4	89	~1. Organisation Role is removed and replaced with specific Organisation Schemes of Agency, [[Data Provider>>doc:sdmx:Glossary 2\.1.Data provider.WebHome]], [[Data Consumer>>doc:sdmx:Glossary 2\.1.Data consumer.WebHome]], Organisation [[Unit>>doc:sdmx:Glossary 2\.1.Statistical unit.WebHome]].
1.1	90
15.5	91	//Mapping (Structure Maps)//
1.1	92
15.4	93	Updated [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Association as follows:
1.1	94
17.1	95	1. Renamed to [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map to reflect better the sub classes and relate better to the naming in the schema.
	96	1. Removed inheritance of [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map from [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]], and inherited directly from [[Nameable Artefact>>doc:sdmx:Glossary 2\.1.Nameable artefact.WebHome]].
15.4	97	1. Item Association inherits from [[Identifiable Artefact>>doc:sdmx:Glossary 2\.1.Identifiable artefact.WebHome]].
1.1	98	1. Removed Property from the model as this is not supported in the schema.
17.1	99	1. Removed association type between [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map and Item, and Association and Item.
1.1	100	1. Removed Association from the model.
15.2	101	1. Made Item Association a sub class of Identifiable, was a sub class Item.
17.1	102	1. Removed association to Property from both [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map and Item.
15.4	103	1. Added [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] alias to both [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Association and Item Association.
17.1	104	1. Made [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map and Item Association abstract.
	105	1. Added sub-classes to [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map – there is a subclass for each type of [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Association (e.g. [[Code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] Map).
15.5	106	1. Added mapping between [[Reporting Taxonomy>>doc:sdmx:Glossary 2\.1.Reporting taxonomy.WebHome]] as this is an [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] and can be mapped in the same way as other [[Item Schemes>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]].
17.1	107	1. Added Hybrid [[Code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] Map and Hybrid [[Code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] Map to support [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] mappings between a [[Code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] and a [[Hierarchical Code list>>doc:sdmx:Glossary 2\.1.Hierarchical code list.WebHome]].
1.1	108
15.5	109	__Mapping: Structure Map__
1.1	110
15.5	111	1. This is a new diagram. Essentially removed inherited /[[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] association between the various maps, as these no longer inherit from Item, and replaced the associations to the abstract Maintainable and [[Versionable Artefact>>doc:sdmx:Glossary 2\.1.Versionable artefact.WebHome]] classes with the actual concrete classes.
17.1	112	1. Removed associations between [[Code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] Map, [[Category Scheme>>doc:sdmx:Glossary 2\.1.Category scheme.WebHome]] Map, and [[Concept Scheme>>doc:sdmx:Glossary 2\.1.Concept scheme.WebHome]] Map and made this association to [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] Map.
	113	1. Removed [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] of Structure Map.
1.1	114
15.5	115	//Concept//
1.1	116
15.4	117	~1. Added association to [[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]].
1.1	118
15.4	119	//[[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]//
1.1	120
15.4	121	1. Added [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] to support structure-specific renderings of the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. The [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] is associated to a [[Concept Scheme>>doc:sdmx:Glossary 2\.1.Concept scheme.WebHome]] that specifies the individual [[measures>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] that are valid.
	122	1. The three types of “[[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]”, - [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]], [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]], Time [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] – have a super class – [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]]
15.6	123	1. Added association to a [[Concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]] that defines the role that the [[component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] ([[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]], Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]) plays in the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. This replaces the Boolean [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] on the [[components>>doc:sdmx:Glossary 2\.1.Component.WebHome]].
15.4	124	1. Added Primary [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] and removed this as role of [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]].
	125	1. Deleted the derived [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] association from [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] to itself as this is not supported directly in [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
15.6	126	1. Deleted [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] GroupKeyDescriptor.isAttachmentConstraint and replaced with an association to an Attachment Constraint.
15.4	127	1. Replaced association from Data [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to Attachable [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] with association to [[Attribute Relationship>>doc:sdmx:Glossary 2\.1.Attribute relationship.WebHome]].
	128	1. Added a set of classes to support [[Attribute Relationship>>doc:sdmx:Glossary 2\.1.Attribute relationship.WebHome]].
15.2	129	1. Renamed KeyDescriptor to DimensionDescriptor to better reflect its purpose.
	130	1. Renamed GroupKeyDescriptor to GroupDimensionDescriptor to better reflect its purpose.
8.8	131
15.4	132	//[[Code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]]//
8.8	133
15.4	134	1. [[CodeList>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] classname changed to [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]].
	135	1. Removed codevalueLength from [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] as this is supported by [[Facet>>doc:sdmx:Glossary 2\.1.Facet.WebHome]].
	136	1. Removed hierarchyView association between [[Code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] and [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] as this association is not implemented.
1.1	137
15.4	138	__[[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] ([[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]])__
1.1	139
15.4	140	1. Full Target Identifier, Partial Target Identifier, and Identifier [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] are replaced by Metadata Target and Target Object. Essentially this eliminates one (% style="color:#e74c3c" %)level(%%) of specification and reference in the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]], and so makes the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] more intuitive and easier to specify and to understand.
	141	1. Re-named Identifiable Object Type to Identifiable Object Target and moved to the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] package.
	142	1. Added sub classes to Target Object as these are the actual types of object to which metadata can be attached. These are Identifiable Object Target (allows reporting of metadata to any identifiable object), Key Descriptor Values Target (allows reporting of metadata for a data [[series key>>doc:sdmx:Glossary 2\.1.Series key.WebHome]], [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] Target (allows reporting of metadata to a [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]), and Reporting Period Target (allows the [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] to specify a reporting period).
15.6	143	1. Allowed Target Object can have any type of [[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]], this was restricted in version 2.0 to an enumerated [[representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] in the model (but not in the schemas).
1.1	144	1. Removed Object Type Scheme (as users cannot maintain their own list of object types), and replaced with an enumeration of Identifiable Objects.
15.4	145	1. Removed association between Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] and [[Identifiable Artefact>>doc:sdmx:Glossary 2\.1.Identifiable artefact.WebHome]] and replaced this with an association between Report Structure and Metadata Target, and allowed one Report Structure to reference more than on Metadata Target. This allowing a single Report Structure to be defined for many object types.
	146	1. Added the ability to specify that a Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] can be repeated in a [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] and that a Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] can be specified as “presentational” meaning that it is present for structural and presentational purposes, and will not have content in a [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]].
	147	1. The [[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] of a Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] uses Extended [[Facet>>doc:sdmx:Glossary 2\.1.Facet.WebHome]] (to support Xhtml).
1.1	148
15.4	149	//[[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]//
1.1	150
15.4	151	1. Added link to [[Data Provider>>doc:sdmx:Glossary 2\.1.Data provider.WebHome]] - 0..1 but note that for [[metadata set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] registration this will be 1.
	152	1. Removed [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] Property as the underlying Property class has been removed.
	153	1. One [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]] is restricted to reporting metadata for a single [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]].
	154	1. The Metadata Report classes are re-structured and re-named to be consistent with the renaming and restructuring of the [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]].
	155	1. Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] Value is renamed Reported [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to be consistent with the schemas.
15.6	156	1. Deleted XML [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] and [[Contact>>doc:sdmx:Glossary 2\.1.Contact.WebHome]] Details from the inheritance diagram.
1.1	157
15.4	158	//[[Category Scheme>>doc:sdmx:Glossary 2\.1.Category scheme.WebHome]]//
10.10	159
15.4	160	1. Added [[Categorisation>>doc:sdmx:Glossary 2\.1.Categorisation.WebHome]]. [[Category>>doc:sdmx:Glossary 2\.1.Category.WebHome]] no longer has a direct association to [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] and [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]].
	161	1. Changed [[Reporting Taxonomy>>doc:sdmx:Glossary 2\.1.Reporting taxonomy.WebHome]] inheritance from [[Category Scheme>>doc:sdmx:Glossary 2\.1.Category scheme.WebHome]] to Maintainable
1.1	162
15.4	163	[[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]].
1.1	164
15.4	165	1. Added Reporting [[Category>>doc:sdmx:Glossary 2\.1.Category.WebHome]] and associated this to Structure Usage.
1.1	166
15.4	167	//[[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]//
1.1	168
15.4	169	1. Removed the association to [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] from the diagram.
	170	1. Added association to [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]. This association was implied via the [[dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] but this is optional in the implementation whereas the association to the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] is mandatory.
	171	1. Added [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] to [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]].
	172	1. There is a single, unified, model of the [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] which supports four types of [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]]:
	173	1*. Generic [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] – for reporting any type of data [[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]], including [[time series>>doc:sdmx:Glossary 2\.1.Series.WebHome]] and what is sometimes known as “cross sectional data”. In this [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]], the value of any one [[dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] (including the Time [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]) can be reported with the observation (this must be for the same [[dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] for the entire [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]])
	174	1*. Structure-specific [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] – for reporting a data [[series>>doc:sdmx:Glossary 2\.1.Series.WebHome]] that is specific to a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]
	175	1*. Generic [[Time Series>>doc:sdmx:Glossary 2\.1.Series.WebHome]] [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] – this is identical to the Generic [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] except it must contain only [[time series>>doc:sdmx:Glossary 2\.1.Series.WebHome]], which means that a value for the Time [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] is reported with the Observation
	176	1*. Structure-specific [[Time Series>>doc:sdmx:Glossary 2\.1.Series.WebHome]] [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] - this is identical to the Structure-specific [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] except it must contain only [[time series>>doc:sdmx:Glossary 2\.1.Series.WebHome]], which means that a value for the Time [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] is reported with the Observation.
	177	1. Removed [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] as a sub class of Identifiable – but note that [[Data Set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] has a “setId” [[attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
	178	1. Added coded and uncoded variants of Key Value, Observation, and [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] Value in order to show the relationship between the coded values in the [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] and the [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] in the [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
15.6	179	1. Made Key Value abstract with sub classes for coded, uncoded, [[measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] (MeasureKeyValue) ads time (TimeKeyValue) The [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] Key Value is associated to a [[Concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]] as it must take its identify from a [[Concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]].
8.4	180
1.1	181	//XSDataSet//
	182
15.4	183	~1. This is removed and replaced with the single, unified [[data set>>doc:sdmx:Glossary 2\.1.Data set.WebHome]] model.
1.1	184
15.6	185	//[[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]//
8.4	186
15.6	187	1. [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] is made Maintainable (was Identifiable).
	188	1. Added [[artefacts>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] that better support and distinguish (from data) the [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] for metadata.
	189	1. Added [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] Role to specify the purpose of the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]. The values ar
1.1	190
15.6	191	1. e allowable content (for validation of sub set [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] [[code lists>>doc:sdmx:Glossary 2\.1.Code list.WebHome]]), and actual content (to specify the content of a data or metadata source).
	192
1.1	193	//Process//
	194
15.4	195	1. Removed inheritance from [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] and Item: Process inherits directly from Maintainable and Process Step from Identifiable.
1.1	196	1. Removed specialisation association between Transition and Association.
15.4	197	1. Removed Transition Scheme - transitions are explicitly specified and not maintained as Items in a [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]].
1.1	198	1. Removed Expression and replaced with Computation.
	199	1. Transition is associated to Process Step and not Process itself. Therefore the source association to Process Step is removed.
	200	1. Removed Expressions as these are not implemented in the schemas. But note that the Transformations and Expressions model is retained, though it is not implemented in the schemas.
	201
15.4	202	//[[Hierarchical Codelist>>doc:sdmx:Glossary 2\.1.Hierarchical code list.WebHome]]//
1.1	203
	204	1. Renamed HierarchicalCodeList to HierarchicalCodelist.
15.4	205	1. This is re-modelled to reflect more accurately the way this is implemented: this is as an actual [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] rather than a set of relational associations from which the [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] can be derived.
	206	1. [[Code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] Association is re-named [[Hierarchical Code>>doc:sdmx:Glossary 2\.1.Hierarchical code.WebHome]] and the association type association to [[Code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] is removed (as these association types are not maintained in an [[Item Scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]]).
	207	1. [[Hierarchical Code>>doc:sdmx:Glossary 2\.1.Hierarchical code.WebHome]] is made an aggregate of [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]], and not of [[Hierarchical Codelist>>doc:sdmx:Glossary 2\.1.Hierarchical code list.WebHome]].
15.7	208	1. Removed root node in the [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] – there can be many top-level [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] in [[Hierarchical Code>>doc:sdmx:Glossary 2\.1.Hierarchical code.WebHome]].
	209	1. Added reference association between [[Hierarchical Code>>doc:sdmx:Glossary 2\.1.Hierarchical code.WebHome]] and [[Level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] to indicate the [[Level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] if the [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] is a [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] based [[hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]].
14.2	210
1.1	211	//Provisioning and Registration//
14.2	212
15.4	213	1. [[Data Provider>>doc:sdmx:Glossary 2\.1.Data provider.WebHome]] and [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] have an association to Datasource (was Query Datasource), as the association is to any of Query Datasource and Simple Datasource.
	214	1. [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] is made Maintainable and indexing [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] moved to Registration
	215	1. Registration has a registry assigned Id and indexing [[attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]].
1.1	216
15.8	217	__Version 2.1 (Revision 2.0) – release June 2020__
1.1	218
15.4	219	The package 13, previously named “Expressions and Transformations” is completely reformulated, renamed as “[[Validation and Transformation Language>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]]” and implemented also in the other Sections of the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] standards for actual use.
1.1	220
15.8	221	__Version 3.0 – release September 2021__
1.1	222
15.4	223	New [[Maintainable Artefacts>>doc:sdmx:Glossary 2\.1.Maintainable artefact.WebHome]]
1.1	224
15.9	225	* Structure Map
	226	* [[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] Map
	227	* Organisation Scheme Map
17.1	228	* [[Concept Scheme>>doc:sdmx:Glossary 2\.1.Concept scheme.WebHome]] Map
	229	* [[Category Scheme>>doc:sdmx:Glossary 2\.1.Category scheme.WebHome]] Map
	230	* [[Reporting Taxonomy>>doc:sdmx:Glossary 2\.1.Reporting taxonomy.WebHome]] Map
1.1	231	* Value List
15.4	232	* [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]]
	233	* [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] Association
15.9	234	* Metadata Constraint
	235	* Data Constraint
15.4	236	* Metadata [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]]
1.1	237	* Metadata Provider Scheme
	238	* Metadataset
	239
15.4	240	New [[Identifiable Artefacts>>doc:sdmx:Glossary 2\.1.Identifiable artefact.WebHome]]
1.1	241
15.2	242	* GeoFeatureSetCode
	243	* GeoGridCode
1.1	244	* Metadata Provider
	245
15.4	246	Removed [[Maintainable Artefacts>>doc:sdmx:Glossary 2\.1.Maintainable artefact.WebHome]]
1.1	247
15.4	248	* [[Structure Set>>doc:sdmx:Glossary 2\.1.Structure set.WebHome]] – replaced
17.1	249	* by Structure Map and the four [[item scheme>>doc:sdmx:Glossary 2\.1.Item scheme.WebHome]] [[maps>>doc:sdmx:Glossary 2\.1.Map.WebHome]]
15.4	250	* [[Hierarchical Codelist>>doc:sdmx:Glossary 2\.1.Hierarchical code list.WebHome]] – replaced by [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] and [[Hierarchy>>doc:sdmx:Glossary 2\.1.Hierarchy.WebHome]] Association
15.9	251	* [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] – replaced by Data [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] and Metadata [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]]
1.1	252
15.4	253	Changed [[Maintainable Artefacts>>doc:sdmx:Glossary 2\.1.Maintainable artefact.WebHome]]
1.1	254
15.4	255	* [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] – support for microdatasets and [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]] linked to data
	256	* [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] – simplifies exchange of [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]], in particular those linked to structures
	257	* [[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] – simplified model for [[reference metadata>>doc:sdmx:Glossary 2\.1.Reference metadata.WebHome]]
	258	* [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] – support for [[codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] extension and geospatial specialised [[codelists>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] (GeographicCodelist, GeoGridCodelist)
15.10	259	* [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] Mapping Scheme – [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] [[Concept>>doc:sdmx:Glossary 2\.1.Concept.WebHome]] Mapping Scheme removed to align the [[VTL>>doc:sdmx:Glossary 2\.1.Validation and transformation language.WebHome]] / [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] interface with the 3.0 model
15.4	260	* New [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] [[Representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] Types
15.2	261	* GeospatialInformation – a string type where the value is an expression defining a set of geographical features using a purpose-designed syntax
8.7	262
15.9	263	__Version 3.1 – release March 2025__
1.1	264
15.4	265	Changed [[Maintainable Artefacts>>doc:sdmx:Glossary 2\.1.Maintainable artefact.WebHome]]
8.7	266
15.9	267	* Availability Constraint no longer a Maintainable, inherits from Annotatable
	268	* [[Categorisation>>doc:sdmx:Glossary 2\.1.Categorisation.WebHome]] – added a fixed version of 1.0
	269	* Data Constraint o Advanced [[Release Calendar>>doc:sdmx:Glossary 2\.1.Release policy - release calendar.WebHome]]: removed o Attachment: removed [[data source>>doc:sdmx:Glossary 2\.1.Data source.WebHome]] attachments
15.2	270	* Data Structure new property: Evolving Structure
15.9	271	* [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] new property: [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] Constraint