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Last modified by Helena on 2025/09/10 11:19
From version 6.10
edited by Helena
on 2025/05/16 12:38
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To version 6.12
edited by Helena
on 2025/05/16 12:41
Change comment: There is no comment for this version

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477 477  
478 478  With reference to the VTL “model for Variables and Value domains”, the following additional mappings have to be considered:
479 479  
480 -(% style="width:1170.29px" %)
481 -|(% style="width:392px" %)**VTL**|(% style="width:776px" %)**SDMX**
482 -|(% style="width:392px" %)**Data Set Component**|(% style="width:776px" %)Although this abstraction exists in SDMX, it does not have an explicit definition and correspond to a Component (either a DimensionComponent or a Measure or a DataAttribute) belonging to one specific Dataflow{{footnote}}Through SDMX Constraints, it is possible to specify the values that a Component of a Dataflow can assume.{{/footnote}}
483 -|(% style="width:392px" %)**Represented Variable**|(% style="width:776px" %)(((
480 +(% style="width:895.294px" %)
481 +|(% style="width:278px" %)**VTL**|(% style="width:613px" %)**SDMX**
482 +|(% style="width:278px" %)**Data Set Component**|(% style="width:613px" %)Although this abstraction exists in SDMX, it does not have an explicit definition and correspond to a Component (either a DimensionComponent or a Measure or a DataAttribute) belonging to one specific Dataflow{{footnote}}Through SDMX Constraints, it is possible to specify the values that a Component of a Dataflow can assume.{{/footnote}}
483 +|(% style="width:278px" %)**Represented Variable**|(% style="width:613px" %)(((
484 484  **Concept** with a definite
485 485  
486 486  Representation
487 487  )))
488 -|(% style="width:392px" %)**Value Domain**|(% style="width:776px" %)(((
488 +|(% style="width:278px" %)**Value Domain**|(% style="width:613px" %)(((
489 489  **Representation** (see the Structure Pattern in the Base Package)
490 490  )))
491 -|(% style="width:392px" %)**Enumerated Value Domain / Code List**|(% style="width:776px" %)**Codelist**
492 -|(% style="width:392px" %)**Code**|(% style="width:776px" %)(((
493 -**Code** (for enumerated
494 -
495 -DimensionComponent, Measure, DataAttribute)
491 +|(% style="width:278px" %)**Enumerated Value Domain /
492 +Code List**|(% style="width:613px" %)**Codelist**
493 +|(% style="width:278px" %)**Code**|(% style="width:613px" %)(((
494 +**Code** (for enumerated DimensionComponent, Measure, DataAttribute)
496 496  )))
497 -|(% style="width:392px" %)**Described Value Domain**|(% style="width:776px" %)(((
496 +|(% style="width:278px" %)**Described Value Domain**|(% style="width:613px" %)(((
498 498  non-enumerated** Representation **(having Facets / ExtendedFacets, see the Structure Pattern in the Base Package)
499 499  )))
500 -|(% style="width:392px" %)**Value**|(% style="width:776px" %)Although this abstraction exists in SDMX, it does not have an explicit definition and correspond to a **Code** of a Codelist (for enumerated Representations) or to a valid **value **(for non-enumerated** **Representations)
501 -|(% style="width:392px" %)**Value Domain Subset / Set**|(% style="width:776px" %)This abstraction does not exist in SDMX
502 -|(% style="width:392px" %)**Enumerated Value Domain Subset / Enumerated Set**|(% style="width:776px" %)This abstraction does not exist in SDMX
503 -|(% style="width:392px" %)**Described Value Domain Subset / Described Set**|(% style="width:776px" %)This abstraction does not exist in SDMX
504 -|(% style="width:392px" %)**Set list**|(% style="width:776px" %)This abstraction does not exist in SDMX
499 +|(% style="width:278px" %)**Value**|(% style="width:613px" %)Although this abstraction exists in SDMX, it does not have an explicit definition and correspond to a **Code** of a Codelist (for enumerated Representations) or to a valid **value **(for non-enumerated** **Representations)
500 +|(% style="width:278px" %)**Value Domain Subset / Set**|(% style="width:613px" %)This abstraction does not exist in SDMX
501 +|(% style="width:278px" %)**Enumerated Value Domain Subset / Enumerated Set**|(% style="width:613px" %)This abstraction does not exist in SDMX
502 +|(% style="width:278px" %)**Described Value Domain Subset / Described Set**|(% style="width:613px" %)This abstraction does not exist in SDMX
503 +|(% style="width:278px" %)**Set list**|(% style="width:613px" %)This abstraction does not exist in SDMX
505 505  
506 506  The main difference between VTL and SDMX relies on the fact that the VTL artefacts for defining subsets of Value Domains do not exist in SDMX, therefore the VTL features for referring to predefined subsets are not available in SDMX. These artefacts are the Value Domain Subset (or Set), either enumerated or described, the Set List (list of values belonging to enumerated subsets) and the Data Set Component (aimed at defining the set of values that the Component of a Data Set can take, possibly a subset of the codes of Value Domain).
507 507  
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527 527  
528 528  The VTL data types are sub-divided in scalar types (like integers, strings, etc.), which are the types of the scalar values, and compound types (like Data Sets, Components, Rulesets, etc.), which are the types of the compound structures. See below the diagram of the VTL data types, taken from the VTL User Manual:
529 529  
530 -[[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_e3df33ae.png||height="543" width="483"]]
529 +[[image:1747388434672-948.png]]
531 531  
532 532  (% class="wikigeneratedid" id="HFigure222013VTLDataTypes" %)
533 533  **Figure 22 – VTL Data Types**
... ... @@ -536,13 +536,10 @@
536 536  
537 537  The VTL basic scalar types are listed below and follow a hierarchical structure in terms of supersets/subsets (e.g. "scalar" is the superset of all the basic scalar types):
538 538  
538 +[[image:1747388465321-274.png]]
539 539  
540 540  **Figure 23 – VTL Basic Scalar Types**
541 541  
542 -(((
543 -
544 -)))
545 -
546 546  === 12.4.2 VTL basic scalar types and SDMX data types ===
547 547  
548 548  The VTL assumes that a basic scalar type has a unique internal representation and can have more external representations.
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