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ESCWA SDMX Workshop

ESCWA SDMX Workshop. Session: Constraints. Constraints – Structure. Supports the specification of sub sets of data or metadata structure definitions or data and metadata sets In terms of allowable key values In terms of the actual content of a data source

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ESCWA SDMX Workshop

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  1. ESCWA SDMX Workshop Session: Constraints

  2. Constraints – Structure • Supports the specification of sub sets of data or metadata structure definitions or data and metadata sets • In terms of allowable key values • In terms of the actual content of a data source • In terms of a filter that might invoke a process (e.g. a specific validation process on a part of a data set) • In terms of allowable dimension or attribute values (usually codes) • Constraints can apply to: • Data sets – so called “cubes” or “cube regions” • Entire databases • Data flows • Metadata sets • Entire metadata repositories • Metadata flows • Provision agreements • Two kinds of Constraint • Content – this is used to define the actual or allowable content • Attachment – this is used to define a sub set of data or metadata set for the purpose of attaching metadata to it

  3. Dataor Metadata Structure Definition Category Scheme Data or Metadata Flow Category Categorisation Data Provider Scheme Content Constraint Provision Agreement Data Provider Register Registered Data Source or Metadata Source Data or Metadata Source references

  4. Constraints – Structure Schematic Sets of keys to be included in or excluded from the scope Constraint AttachmentConstraint ContentConstraint Key Set Sets of values to be included in or excluded from the scope Specification of a key This comprises sets of series keys Cube Region Key Set of values for a concept Identity of the Concept (e.g. Country) Specification of a key value Concept Values Key Value Concept List of values This is a sub set of the code list in the DSD or MSD Values

  5. Example: Cube Region Constraints This is a sub-set of the full Country Code List

  6. Example: Key Set Constraints

  7. Example: Key Set Constraints This is a created from the current selection and a knowledge of all the available series keys

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