Changes for page Part IV. Data and Reference Metadata Namespaces

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759	759
760	760	For each group defined in the data structure definition, a complex type with its name taken from the group identifier is defined. Its content model will be derived via restriction of the previously defined GroupType. The complex type content model will be as follows:
761	761
762		-1. A sequence consisting of:
763		-1. An element reference to common:Annotations, with a minimum occurrence of 0
764		- 2. If any attributes with complex representation defined in the data structure declares an attribute relationship with the group, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
765		- 3. If any metadata attribute usages defined in the data structure that declares an attribute relationship with the group, a local element named Metadata with the type metadata:MetadataSetType a form of unqualified, and a minimum occurrence of 0
766		-2. An attribute for each dimension referenced by the group. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is required
767		-3. An attribute for each data attribute with simple representation defined in the data structure that declares an attribute relationship with the group or specifies the group as an attachment group. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is optional
	762	+~1. A sequence consisting of:
	763	+
	764	+* i. An element reference to common:Annotations, with a minimum occurrence of 0
	765	+* ii. If any attributes with complex representation defined in the data structure declares an attribute relationship with the group, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
	766	+* iii. If any metadata attribute usages defined in the data structure that declares an attribute relationship with the group, a local element named Metadata with the type metadata:MetadataSetType a form of unqualified, and a minimum occurrence of 0
	767	+
	768	+2. An attribute for each dimension referenced by the group. The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is required
	769	+3. An attribute for each data attribute with simple representation defined in the data structure that declares an attribute relationship with the group or specifies the group as an attachment group. The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is optional
768	768	4. An attribute named type with a type of Group.ID, usage of optional, and a fixed value of the identifier of the group
769	769
770	770	=== 3.4.3 SeriesType ===
...	...	@@ -771,40 +771,46 @@
771	771
772	772	If the dimension at the observation is not AllDimensions, a complex type name SeriesType must be created. Its content model will be derived via restriction of dsd:SeriesType. The complex type content model will be as follows:
773	773
774		-1. A sequence consisting of:
775		-1. An element reference to common:Annotations, with a minimum occurrence of 0
776		- 2. If any attributes with complex representation defined in the data structure declares an attribute relationship with a dimension that is not at the observation level, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
777		- 3. A local element named Obs with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of ObsType (as defined in the ObsType section which follows)
778		- 4. If any metadata attribute usages defined in the data structure that declares an attribute relationship with the series, a local element named Metadata with the type metadata:MetadataSetType a form of unqualified, and a minimum occurrence of 0
	776	+~1. A sequence consisting of:
	777	+
	778	+* i. An element reference to common:Annotations, with a minimum occurrence of 0
	779	+* ii. If any attributes with complex representation defined in the data structure declares an attribute relationship with a dimension that is not at the observation level, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
	780	+* iii. A local element named Obs with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of ObsType (as defined in the ObsType section which follows)
	781	+* iv. If any metadata attribute usages defined in the data structure that declares an attribute relationship with the series, a local element named Metadata with the type metadata:MetadataSetType a form of unqualified, and a minimum occurrence of 0
	782	+
779	779	2. An attribute named TIME\_PERIOD with a type of common:ObservationalTimePeriod. If the dimension at the observation level is the time dimension (TIME\_PERIOD) or there is no time dimension defined by the data structure, a usage of prohibited; otherwise, a usage of required
780		-3. An attribute for each dimension defined by the data structure definition, except for the dimension at the observation level and the time dimension (TIME\_PERIOD). The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is required
781		-4. An attribute for each data attribute defined with simple representation in the data structure that declares an attribute relationship with any dimension outside of the dimension at the observation level (so long as it does not also declare an attachment group). The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is optional
	784	+3. An attribute for each dimension defined by the data structure definition, except for the dimension at the observation level and the time dimension (TIME\_PERIOD). The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is required
	785	+4. An attribute for each data attribute defined with simple representation in the data structure that declares an attribute relationship with any dimension outside of the dimension at the observation level (so long as it does not also declare an attachment group). The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is optional
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783	783	=== 3.4.4 AttsType ===
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785	785	A complex type named AttsType must be created. Its content model will be derived via restriction of dsd:AttsType. The complex type content model will be as follows:
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787		-1. A sequence consisting of:
788		-1. An element reference to common:Annotations, with a minimum occurrence of 0
789		- 2. If any attributes with complex representation are defined in the data structure, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
	791	+~1. A sequence consisting of:
	792	+
	793	+* i. An element reference to common:Annotations, with a minimum occurrence of 0
	794	+* ii. If any attributes with complex representation are defined in the data structure, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
	795	+
790	790	2. If there is no dimension (TIME\_PERIOD) defined by the data structure, an attribute named TIME\_PERIOD with a type of common:ObservationalTimePeriod, and a usage of prohibited
791		-3. An attribute for all dimension defined by the data structure definition. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is optional
792		-4. An attribute for each data attribute defined with simple representation in the data structure. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is optional
	797	+3. An attribute for all dimension defined by the data structure definition. The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is optional
	798	+4. An attribute for each data attribute defined with simple representation in the data structure. The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is optional
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794	794	=== 3.4.5 ObsType ===
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796	796	A complex type name ObsType must be created. Its content model will be derived via restriction of the base type dsd:ObsType. The complex type content model will be as follows:
797	797
798		-1. A sequence consisting of:
799		-1. An element reference to common:Annotations, with a minimum occurrence of 0
800		- 2. If any measures with complex representations are defined in the data structure, any attributes with complex representation that declare an attribute relationship with the observation, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
801		- 3. If any metadata attribute usages defined in the data structure that declares an attribute relationship with the observation, a local element named Metadata with the type metadata:MetadataSetType a form of unqualified, and a minimum occurrence of 0
	804	+~1. A sequence consisting of:
	805	+
	806	+* i. An element reference to common:Annotations, with a minimum occurrence of 0
	807	+* ii. If any measures with complex representations are defined in the data structure, any attributes with complex representation that declare an attribute relationship with the observation, a Comp element with a form of unqualified, a minimum occurrence of 0, a maximum occurrence of unbounded, and a type of dsd:CompType
	808	+* iii. If any metadata attribute usages defined in the data structure that declares an attribute relationship with the observation, a local element named Metadata with the type metadata:MetadataSetType a form of unqualified, and a minimum occurrence of 0
	809	+
802	802	2. An attribute named TIME\_PERIOD with a type of common:
803	803	ObservationalTimePeriodValueType. If the dimension at the observation level is the time dimension (TIME\_PERIOD) or all dimensions and the time dimension is defined by the data structure, a usage of required; otherwise, a usage of prohibited
804		-3. If the dimension at the observation level is not all dimensions or the time dimension (TIME\_PERIOD), an attribute for the dimension at the observation level. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is required
805		-4. If the dimension at the observation level is all dimensions, an attribute for each dimension defined by the data structure definition, except for the time dimension (TIME\_PERIOD). The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is required
806		-5. An attribute for each measure with simple representation defined by the data structure definition. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) is defined according to the general rules defined in the previous section, and the usage is optional
807		-6. An attribute for each data attribute with simple representation defined in the data structure that declares an attribute relationship with the observation. The XML attribute [name](#331-Component-Name-Determination) and [type](#333-Simple--Primitive-Type-Determination) are defined according to the general rules defined in the previous section, and the usage is optional
	812	+3. If the dimension at the observation level is not all dimensions or the time dimension (TIME\_PERIOD), an attribute for the dimension at the observation level. The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is required
	813	+4. If the dimension at the observation level is all dimensions, an attribute for each dimension defined by the data structure definition, except for the time dimension (TIME\_PERIOD). The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is required
	814	+5. An attribute for each measure with simple representation defined by the data structure definition. The XML attribute name and type is defined according to the general rules defined in the previous section, and the usage is optional
	815	+6. An attribute for each data attribute with simple representation defined in the data structure that declares an attribute relationship with the observation. The XML attribute name and type are defined according to the general rules defined in the previous section, and the usage is optional
808	808
809	809	=== 3.4.6 CompType ===
810	810
...	...	@@ -835,7 +835,7 @@
835	835
836	836	=== 4.1.2 Replace Action ===
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838		-Data or data-related reference metadata is to be replaced, through either update, insert or delete depending on already existing information. A full replacement is hereby assumed to take place at specific “replacement levels”: for entire observations and for any specific dimension combination for data-related reference metadata attributes. Within these “replacement levels” the provided values are inserted or updated, and omitted values are deleted. Values provided for the other attributes (those above the observation level) are merged (see *Merge* action).
	846	+Data or data-related reference metadata is to be replaced, through either update, insert or delete depending on already existing information. A full replacement is hereby assumed to take place at specific “//replacement levels//”: for entire observations and for any specific dimension combination for data-related reference metadata attributes. Within these “replacement levels” the provided values are inserted or updated, and omitted values are deleted. Values provided for the other attributes (those above the observation level) are merged (see //Merge// action).
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840	840	Only non-dimensional components (measure, attribute or reference metadata values) can be **omitted** (null or absent). Bulk replacing is thus not supported.
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...	...	@@ -843,9 +843,9 @@
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844	844	Replacing non-existing elements is not resulting in an error.
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846		-All observations as well as the sets of data-related reference metadata attributes at specific dimension combinations impacted by the *Replace* action change their time stamp when used to update an SDMX storage system.
	854	+All observations as well as the sets of data-related reference metadata attributes at specific dimension combinations impacted by the //Replace// action change their time stamp when used to update an SDMX storage system.
847	847
848		-Because the *replace* action always takes place at specific levels, it cannot be used to replace a whole dataset or a whole series. However, a “*replace all*” effect can be achieved by combining a *Delete* dataset containing a completely wildcarded key (where all dimension values are omitted) with a *Merge* or *Replace* dataset within the same data message. Similarly, to replace a whole series, a message can combine a *delete* dataset containing only the partial key of the series (where the not used dimension values are omitted) with a *Merge* or *Replace* dataset for that series.
	856	+Because the //replace// action always takes place at specific levels, it cannot be used to replace a whole dataset or a whole series. However, a //“replace all”// effect can be achieved by combining a //Delete// dataset containing a completely wildcarded key (where all dimension values are omitted) with a //Merge// or //Replace// dataset within the same data message. Similarly, to replace a whole series, a message can combine a //delete// dataset containing only the partial key of the series (where the not used dimension values are omitted) with a //Merge// or //Replace// dataset for that series.
849	849
850	850	=== 4.1.3 Delete Action ===
851	851