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Variables System the bridge between metadata and dissemination

Variables System the bridge between metadata and dissemination. «. Monica Isfan ( monica.isfan@ine.pt ) Statistics Portugal. 9 –11July 2008. Overview. Variables System Statistical Indicators Register flow Transmission and visualization Benefits. Variables System.

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Variables System the bridge between metadata and dissemination

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  1. Variables System the bridge between metadata and dissemination « Monica Isfan (monica.isfan@ine.pt) Statistics Portugal 9 –11July 2008

  2. Overview • Variables System • Statistical Indicators • Register flow • Transmission and visualization • Benefits

  3. Variables System ISO/ IEC 11179 • Statistical Survey Design • Automatic Questionnaire Generations • Statistical Dissemination • Facilitate Standardization • Identify Duplicates • Facilitate Data Sharing Variables System

  4. Variables System Production System Variables System Dissemination System

  5. Dissemination System • Central data base of statistical indicators • Inputs → aggregate data from Production Departments • Outputs → aggregate data and the associated metadata DDD Dissemination Data Base

  6. Variables System Variables System Statistical indicators Variables defined Property Object class (population or statistical unit) Representation class Value domain

  7. Statistical Indicators - Definition Statistical Indicator Data element that represents statistical data for a specified time, place, and other characteristics. (“Terminology on Statistical Metadata, Conference of European Statisticians – Statistical Standards and Studies – Nº 53”).

  8. Statistical Indicators - Definition In Variables System Statistical indicator defined Variables + Aggregate Variables Dimensions • D1 = Time • D2 = Geography • ……. • Dn = Other characteristics

  9. Aggregate Variables • Property; • Object class = Population; • Representation class = Quantity, Ratio, Value, etc. • Value domain = Non-enumerated + Unit of measure; • Definition and/ or concept; • Formula.

  10. Property = Resident Population Population = Resident Population Representation class = Quantity Value domain = (0, ∞)/ U.M. = No. Concept = Resident population (208/ 24-05-1994) The persons who regardless of the fact that at the moment of observation ' 0:00 a.m. of the reference day ' are present or absent in a given housing unit, this unit being where they live during most of the year with their family, or where they have all or most of their belongings. Formula = No

  11. Statistical Indicators - Definition In Variables System Statistical indicator defined Variables + Aggregate Variables Dimensions • D1 = Time • D2 = Geography • ……. • Dn = Other characteristics

  12. Dimensions • Property; • Object class = Statistical Unit; • Representation class = Code; • Value domain = Classification + Level of classification; • Definition and/ or concept.

  13. Property = Sex Statistical unit = Person Representation class = Code Value domain = V00305 – Sex (Dissemination MF) + Level 2 Definition Biological difference between male and female.

  14. Statistical Indicators - Name Aggregate variable by D2 = Dimension (geography) , … Name definition , Dn-1 = Other dimensions and Dn = Other dimensions

  15. Statistical Indicators - Name Resident population Aggregate variable by Place of residence , Dimension (geography) Sex and Other dimensions Age group

  16. Statistical Indicators – Register flow • Step 1. Analyse of data and metadata • Step 2. Variables and statistical indicators proposal • Step 3. Register and approval of variables

  17. Statistical Indicators – Register flow Select type of source • Analyse/ Search • Proposal • Update • Approve • Associated Systems • Concepts • Sources • Assistant Entities • Property • Object class • Representation class • Value domain • Greatness/ Unit • Administrative sources • Other sources • Files / Version • Conceptual variable • Variable Survey Select Methodological Document Annual estimates of resident population (version 1) Step 4. Source selection Select variables Variables for association All... 3174|2007-04-27 >> Distribution of the resident population (%) 259| 2005-09-05 >>Resident population (No.) Resident population Word Association between variables and the methodological document Observation Derivate Aggregate Dimension User management Step 5. Association of aggregate variables End

  18. Statistical Indicators – Register flow Select variables • Assistant Entities • Property • Object class • Representation class • Value domain • Greatness/ Unit • Administrative sources • Other sources • Files / Version • Conceptual variable • Variable Variables for association All... 190|2005-08-03>> Reference period 235|2005-01-01>> Place of residence 310|2005-01-01>> Sex Word age Association between variables and the methodological document Observation Derivate Aggregate Dimension Select aggregate variable Cross ref. 259|2005-09-05>>Resident population (No.) Step 6. Define the cross reference 190|2005-08-03>> Reference period User management 235|2005-01-01>> Place of residence 310|2005-01-01>> Sex End Generate name Step 7. Associate the dimensions to the selected aggregate variable

  19. Statistical Indicators – Register flow Select aggregate variable Cross reference 259|2005-09-05>>Resident population (No.) 190|2005-08-03>> Reference period 235|2005-01-01>> Place of residence 310|2005-01-01>> Sex 236|2005-08-29>> Age group (by life cycles) Generate statistical indicator Cross reference code: Definition: População residente (N.º)_Período de referência_Local de residência_Sexo_Grupo etário (por ciclos de vida) Name: População residente (N.º) por Local de residência, Sexo e Grupo etário (por ciclos de vida) Resident population (No.) by Place of residence, Sex and Age group ( by life cycle) Registry Step 8. Generate the definition and the name of statistical indicator and execute the registry

  20. Statistical Indicators – Transmission Data Base Data Metadata Statistical Indicators(view) Metadata Variables System Statistical Indicators DB Data Internet DataWarehouse

  21. Statistical Indicators – Visualization

  22. Statistical Indicators – Visualization

  23. Statistical Indicators – Visualization Resident population (No.) by place of residence (NUTS – III) 2007

  24. Benefits “Metadata is the key to ensure that information will survive and continue to be accessible into the future.” “Only used statistical information is useful statistical information.” • Central reference for aggregate data and metadata; • Improving communication and understandability; • Increasing data and metadata sharing.

  25. Variables System the bridge between metadata and dissemination Thank you for your attention!

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