Based on SDMX guidelines, modelling a statistical domain

1. SDMX 5
Modelling a statistical domain
UN/FAO - Erik van Ingen
Abuja, Nigeria, 13-14 May 2015

2. •Agree on exchange needs
•Define the Concept Scheme
•Code the Concept Scheme
•Define a DSD Matrix
•Optimise the DSD Matrix
•Create SDMX Artefacts

3. agree on data exchange needs
list Dataflows to be covered by SDMX
One Dataflow per data exchange need (e.g.
transmission table)

4. define the Concept Scheme
list all Concepts needed in any Dataflow
place all of the Concepts required in a single
Concept Scheme

5. code the Concepts
add default representations to Concepts drawing on
existing:
cross-domain Code Lists
existing shared Code Lists
new Code Lists based on existing classifications
new Code Lists following the SDMX coding guidelines

6. define a DSD Matrix
put the Dataflows in relation to the Concept
Scheme:
which Concept is used in which Dataflow?

7. DSD Matrix

8. optimise the DSD Matrix
One DSD for each Dataflow
with only the Dimensions
needed for the respective
Dataflow
A single DSD covering both
Dataflows, where the code
reported for Dimensions not
needed are fixed to a single
code for use with that specific
Dataflow

9. Option 1

10. option 2

11. optimise the DSD Matrix
fill blanks in the matrix with default codes as far
as possible from statistical perspective
to reduce the number of DSDs, you may fix a
Dimension to a single Code value for use in a
Dataflow

12. generic example

13. create SDMX Artefacts
Derive DSDs from the matrix
1 Concept Scheme
1 DSD for each set of dimensionality
1 Dataflow per exchange need
1 Cube Region Constraint per Dataflow

14. DSD matrix in context

16. architectural scenarios

17. thank you