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Determination of the scope and form of census data dissemination

United Nations Regional Seminar on Census Data Dissemination and Spatial Analysis Amman - Jordan 16 – 19 May 2011. Determination of the scope and form of census data dissemination. Presented by: Mounir JELASSI National Statistical Institute of Tunisia. Objective.

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Determination of the scope and form of census data dissemination

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  1. United Nations Regional Seminar on Census Data Dissemination and Spatial AnalysisAmman - Jordan 16 – 19 May 2011 Determination of the scope and form of census data dissemination Presented by: Mounir JELASSI National Statistical Institute of Tunisia

  2. Objective The purpose of this presentation is to expose the Tunisian experience concerning the scope and form of disseminating data of the General Population and Housing Census 2004 (GPHC)

  3. Summary • Few words about the GPHC in Tunisia • The scope and form of data dissemination of the GPHC 2004 • Paper , CDROM • Website • Access Center to the Individual Data (ACID) • Conclusion

  4. Few words about the GPHC in Tunisia • The GPHC is exhaustively and concern the population (individual, household) and housing. • The periodicity of the GPHC in Tunisia is ten (10) years. • Since the independence in 1956, Tunisia has produced five (5) GPHC: • The first GPHC was in 1966. • The last GPHC is carried out in 2004. • The next GPHC is scheduled for 2014.

  5. Few words about the GPHC in Tunisia • Census operations took place in four phases: • The preparatory phase • The Pre-enumeration • The enumeration • The data processing and dissemination of results

  6. Few words about the GPHC in Tunisia • The preparatory phase : • The preparation of the cartographic documentation • The preparation of methodology and technical documents for pre-enumeration phase. • The Pre-enumeration : • Delimit of the municipalities, cities and sectors on the ground and on maps, • Proceed to sweep these units to make a first evaluation of the number of local, housing and households.

  7. Few words about the GPHC in Tunisia • The enumeration : • Collecting detailed statistical information on housing, households and individuals. • The data processing and dissemination of results: • The coding and data entry, data processing, analysis and publication of results. • Several publications have emerged giving details on the characteristics of individuals, households and housing.

  8. The scope and form of data dissemination of the GPHC 2004 • The dissemination of the census data is diversified according to the media of dissemination, the data presentation, the potential users and the data level details. • I will approach this subject basing on the dissemination media as a beginning point to explain the other dissemination elements.

  9. The scope and form of data dissemination of the GPHC 2004Dissemination media • The different dissemination media used in the GPHC 2004 are: • Paper , CDROM • Website • Service responding to specific requests • Access Center to the Individual Data (ACID)

  10. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM Data level details: It varies from the national level to the sector level.

  11. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM Presentation : Tabulation, Graphics, Cartography literal description

  12. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Books, CDROM • Book1: First result This publication is devoted to the exploitation of the principal results at the national level and shows the evolution of different statistical informers through a comparison between these results and those of preceding census of 1994. Data level details: National level, gouvernorat Presentation : Tabulated, Graphics, literal description Potential user: the government.

  13. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Books, CDROM • Book 2: Results by administrative unity This publication presents the statistics about the population, the households and the housing by administrative unity. Data level details: Gouvernorats, Delegations, Towns and Sectors Presentation : Tabulated, cartography, literal description Potential user: the government, universities, economical enterprises.

  14. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Books, CDROM • Book 3: Results by delegation This regional publication (5 sections) contains the principal informers concerning the characteristics of : demography, education, mobility , internal and external migration, economy, the population, the housing and the life conditions of the households. Data level details: Delegation Presentation : Tabulated, cartography, literal description Potential user: the government, universities, economical enterprises.

  15. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Books, CDROM • Book 4: themigration Characteristics This publication is devoted to the treatment of the data on internal and international migration, and analyze the characteristics of the migrant inter-Gouvernorats, foreign population and Tunisian population born abroad. Data level details: National level, Gouvernorat Presentation : Tabulated, literal description Potential user: the government, universities, economical enterprises.

  16. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Books, CDROM • Book 5: Demographic characteristics of the population This publication is dedicated to: - The population detailed structure by age and marital status, - The data on the parity of women in general and parity of married women, widowed and divorced and the family nuclei, - The demographic , educational and economic characteristics of the population with disabilities. Data level details: National level, Gouvernorat Presentation : Tabulated, graphics, literal description Potential user: the government, universities, economical enterprises.

  17. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Books, CDROM • Book 6: Characteristic of housing, household and living conditions This publication is devoted to housing characteristics such as type of housing, number of rooms, floor area, connecting the housing to the electricity, drinking water and sanitation and housing usage. It also includes characteristics of household appliances, leisure, transportation and use of communication technologies. Data level details: National level, Gouvernorat Presentation : Tabulated, literal description Potential user: the government, universities, economical enterprises.

  18. The scope and form of data dissemination of the GPHC 2004Dissemination mediaPaper , CDROM • Notes: Data level details: National level, Gouvernorat Presentation : Tabulated, graphics and literal description Potential user: The government. • Press communication: concerned the first results

  19. The scope and form of data dissemination of the GPHC 2004Dissemination media • Website • Tabulation • Database • PDF

  20. The scope and form of data dissemination of the GPHC 2004Dissemination mediaWebsite • Tabulation: • Generated by predefined SQL query • Can be exported to Excel format • Can be printed

  21. The scope and form of data dissemination of the GPHC 2004Dissemination mediaWebsite • Database: • MySQL database • Contains only information published in books • We hope to expand this database to include more detailed information that allows to have a website more interactive.

  22. The scope and form of data dissemination of the GPHC 2004Dissemination mediaWebsite • PDF: • Free download

  23. The scope and form of data dissemination of the GPHC 2004Dissemination mediaService responding to specific requests • This service is responsible for monitoring specific requests of different users for statistical data and especially the census data. • These requests are received by mail, fax or letter. • The potential users are universities and economical enterprises, international organisations.

  24. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • The reasons for the creation of the center • Researchers have always wanted access to individual information. • The researchers applications are sometimes in conflict with the preservation of the confidentiality of the data. • Setting up a procedure allowing a compromise between the users needs for individual data and the guarantee of statistical confidentiality.

  25. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • The individual data of the center • The center started in late 2005. • The work started with a pilot survey: the national survey of economic activities 2002. • The Generalization of the work to include the General Census of population (GPHC 2004) and other surveys.

  26. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • Technical structure of the center User query Data processing software The centre head Online analysis The center access server Metadata access

  27. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • Technical structure of the center • Data processing software: • SAS, • SPSS, • Stata • …

  28. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • Technical structure of the center • The online analysis: • Allows to make an analysis of anonymous micro-data through the WEB and without having the possibility to download these micro-data. • It provides only tabulation and simple analysis

  29. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • Technical structure of the center • Metadata access:

  30. The scope and form of data dissemination of the GPHC 2004Dissemination mediaAccess Center to the Individual Data (ACID) • Technical structure of the center • Metadata access: • Description of the file contents (calculation methods) • Number of recorders of the file • Number of variables of the file • The type of file structure (relational) • List of Key words • List and description of variables

  31. The scope and form of data dissemination of the GPHC 2004Conclusion Compared to previous censuses, the dissemination of Census 2004 is characterized by: • The detailed level of information on finer geographical units and the individual data. • The cartographic dissemination of certain socio-economic indicators. • The dissemination on the Website.

  32. Thanks

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