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Last modified by Helena on 2025/09/10 11:19
From version 2.2
edited by Helena
on 2025/05/15 15:48
Change comment: Changed document title to [11 Transforming between versions of SDMX].
To version 1.1
edited by Helena
on 2025/05/15 15:48
Change comment: Changed document syntax from [XWiki 2.1] to [xwiki/2.1].

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1 -11 Transforming between versions of SDMX
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1 -= 11 Transforming between versions of SDMX =
2 -
3 -== 11.1 Scope ==
4 -
5 -The scope of this section is to define both best practices and mandatory behaviour for specific aspects of transformation between different versions of SDMX.
6 -
7 -== 11.2 Compatibility and new DSD features ==
8 -
9 -The following table provides an overview of the backwards compatibility between SDMX 3.0 and 2.1.
10 -
11 -|**SDMX 3.0 feature**|**SDMX 2.1 compatibility**|**Comments**
12 -|Multiple Measures|(((
13 -Create a Measure Dimension Or
14 -
15 -Model Measures as Attributes
16 -)))|For a Measure Dimensions, all Concepts must reside in the same Concept Scheme
17 -|Arrays for values|Cannot be supported|Arrays are always reported in a verbose format, even if one value is reported
18 -|Measure Relationship|Can be ignored, as it does not affect dataset format|
19 -|Metadata Attributes|Can be created as Data Attributes|Not for extended facets
20 -|Multilingual Components|Cannot be supported|
21 -|No Measure|Can only be emulated by ignoring the Primary Measure value|
22 -|Use extended Codelist|A new Codelist with all Codes must be created|
23 -|Sentinel values|Cannot be supported in the DSD|Rules may be supported outside the DSD, in bilateral agreements
24 -
25 -The following table illustrates forward compatibility issues from SDMX 2.1 to 3.0.
26 -
27 -|**SDMX 2.1 feature**|**SDMX 3.0 compatibility**|**Comments**
28 -|Measure Dimension|(((
29 -Create a Dimension with role ‘MEASURE’
30 -
31 -Or
32 -
33 -Create multiple Measures from the Measure Dimension Concept Scheme
34 -)))|If the dataset has to resemble that of SDMX 2.1 Structure Specific, then the first option must be used
35 -|Primary Measure|(((
36 -Create one Measure with role
37 -
38 -‘PRIMARY’; use id=”OBS_VALUE”
39 -)))|