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Report from the TWG Statistical Units (SU) and Population Distribution – Demography (PD)

Report from the TWG Statistical Units (SU) and Population Distribution – Demography (PD). Edinburgh June 30 th , 2011 by Udo Maack. Theme Statistical Units and Population Distribution - Demography. Bring together the two worlds: The one of Geographers and the one of Statisticians

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Report from the TWG Statistical Units (SU) and Population Distribution – Demography (PD)

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  1. Report from the TWG Statistical Units (SU) and Population Distribution – Demography (PD) Edinburgh June 30th, 2011 by Udo Maack INSPIRE Conference, Edinburgh

  2. Theme Statistical Units andPopulation Distribution - Demography Bring together the two worlds: The one of Geographers and the one of Statisticians • Geographers use maps • Statisticians use numerical values to describe the world or part of them. Two Views: A statistical value is an attribute of a region (SU) A related region is an attribute of a statistical value (PD) INSPIRE Conference, Edinburgh

  3. Theme Statistical Units andPopulation Distribution / Demography Models / concepts behind: • Maps with Statistical Units • Fields of a table or • Multidimensional data cubes Age [0-100] Year of observation Region [NUTS] Sex [male, female] “2025” Popolation count INSPIRE Conference, Edinburgh

  4. Theme Statistical Units andPopulation Distribution / Demography Multidimensional data cubes are the base of the concept of the SDMX Standard (Statistical Data and Metadata eXchange – ISO /TS 17 369) Pittfalls linking statistical and geographical data by InspireID: • Responsibility split between (N)SI and (N) MA • Different licensee policies • Coordination of creation of identifiers • Inspire ID’s are to complex INSPIRE Conference, Edinburgh

  5. Theme Statistical Units andPopulation Distribution / Demography Main achievements SU: INSPIRE Conference, Edinburgh

  6. Theme Statistical Units andPopulation Distribution / Demography SU Grid package: DS of Geographical Grids (Annex I) did not achive the requirements. Main concerns: • Grid size limited to 10n meter (125m, 200m, 250m and 500m required) • Rules for construction of the Grid-ID do not allow coding of intermediate values. New rules for Statistical Grids: • Limitation suspended and more • Rules for coding the ID of each grid size allowing the EPSG-Code for coding the CRS INSPIRE Conference, Edinburgh

  7. Theme Statistical Units andPopulation Distribution / Demography SU Vector package: The feature type VectorStatisticalUnit • Generic model • using the GM_object with some constraints (=> Area, Line and Point SU are allowed) • Allows to define hierarchal dependencies • Allows tessellations as topological constrains • Evolutions of statistical units can be described ! Feature type NUTS defined in AU (Annex I) are not compatible INSPIRE Conference, Edinburgh

  8. Theme Statistical Units andPopulation Distribution / Demography Main achievements PD: Class Population Distribution – Demography (I) <<feature type >> StatisticalDataDistribution +inspireID (???) + domain + universe + measure + classification + measurementUnit + statisticalMeasurementMethod + period of Measurement + period of Reference + period of Validity : + values: StatisticalDataValue Voidable lifecycle INSPIRE Conference, Edinburgh

  9. Theme Statistical Units andPopulation Distribution / Demography Main achievements PD: Class Population Distribution – Demography (II) <<data type >> Statistical Data Value + value +specialValue +flag +comment +dimensions:StatisticalDataDimensions Voidable +periodOfMeasurement <<data type >> Statistical Data Dimensions + classifications [0..n] + geoReference INSPIRE Conference, Edinburgh

  10. Theme Statistical Units andPopulation Distribution / Demography Open issues (general): • Inspire metadata concept not flexible enough to allow the integration of searching in statistical databases to provide user defined statistical data? • SDMX and INSPIRE relation? • Which data have to be provided? INSPIRE Conference, Edinburgh

  11. Theme Statistical Units andPopulation Distribution / Demography Open issues (reviewers and testers): • Is the information of the Evolution class sufficient for updating linked user own data? • Specification Document and provided GML not aligned!! INSPIRE Conference, Edinburgh

  12. ? Thank you INSPIRE Conference, Edinburgh

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