Escwa sdmx workshop
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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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Escwa sdmx workshop

ESCWA SDMX Workshop

Session: Constraints


Constraints structure

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


Escwa sdmx workshop

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


Constraints structure schematic

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


Example cube region constraints

Example: Cube Region Constraints

This is a sub-set of the full Country Code List


Example key set constraints

Example: Key Set Constraints


Example key set constraints1

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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