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Cross-domain concepts Giuseppe Sindoni - Eurostat

Towards Implementation of SDMX 9-11 January 2007. Cross-domain concepts Giuseppe Sindoni - Eurostat. Metadata concepts relevant to several statistical domains Promote: reusability exchange of information and related metadata Dynamic asset:

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Cross-domain concepts Giuseppe Sindoni - Eurostat

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  1. Towards Implementation of SDMX 9-11 January 2007 Cross-domain concepts Giuseppe Sindoni - Eurostat

  2. Metadata concepts relevant to several statistical domains Promote: reusability exchange of information and related metadata Dynamic asset: initial growth, then relative stabilisation expected continous maintenance Draft cross-domain concepts

  3. For each concept: name description proposed reference code list possible roles CDCs are not: a requisite for SDMX conformance an imposition to statistical organisations CDC are a framework to promote interoperability Content and expected use

  4. Known as “key family” in the GESMES era Describes a set of statistical data in terms of: identifying dimensions attributes improving data description Examples of DSDs from the Eurostat’s DSD database Examples of DSD in SDMX-ML format: STS in SODI ESA95 in NAWWE CDCs are concepts almost always used in the same way in existing DSDs Data Structure Definition

  5. Set of structural definitions to describe organisation of a set of metadata Example of a MSD Identifies: concepts to be reported relationships between concepts type of representations of concepts which data-flow element they describe Metadata Structure Definition

  6. Use of cross-domain concepts

  7. Coded Adjustment Collection Decimals Frequency … SDMX cross-domain concepts for Data Structure Definitions Uncoded • Adjustmentdetail • Description • Local name • Observation comment • …

  8. Hierarchical Reference area.country Vis-a-vis area.country Describe subclasses Standard representation only for subclasses SDMX cross-domain concepts for Data Structure Definitions

  9. All uncoded Accuracy Comparability Date of update (of metadata) Release calendar … SDMX cross-domain concepts for Metadata Structure Definitions

  10. Coverage of “non economic” domains Choice of reference code lists Correspondence tables Maintenance of guidelines Feedback from stakeholders Process governance Open issues

  11. “One size fits all” is not possible Proposed CLs to be: directly used for the whole process, when possible used for data and metadata exchange, by means of mappings to local ones Choice of reference code lists

  12. Correspondences between code lists

  13. COICOP-Estat-diss = add-char(“P”, 2, COICOP- Estat-ECB) = concat(“CP”, remove- dots(COICOP-UNSD)) Easier to develop and maintain (if coding patterns don’t change) Sometimes not applicable Mapping functions

  14. Cross-domain concepts to improve quality of exchanged statistics Technical standards provide a framework for efficient use of CDCs Guidelines continuously updated More feedback from national organisations needed Conclusions

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