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Role of Metadata in Data Dissemination Presented at the

Learn about the importance of metadata in enhancing data understanding and dissemination. Explore different categories of metadata for surveys and understand how metadata development is crucial in statistics. Discover various electronic data sets available for researchers and the general public.

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Role of Metadata in Data Dissemination Presented at the

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  1. Role of Metadata in Data Dissemination Presented at the UN Regional Seminar on Census Data Dissemination and Spatial Analysis Motale Phirwa Statistics South Africa17th September 2010 Nairobi, Kenya

  2. What is metadata? • Data about data. • Information that enhances the understanding of data.

  3. Categories of Metadata for Surveys • Survey Metadata • Concepts and definitions including the way the question is asked in the survey • Classifications (code lists) • Operational metadata including methodology • Data editing instruction

  4. Categories of metadata for Surveys • Survey Instance Metadata – information about a particular occurrence of a survey • Response rates • Imputations rules and results • Any deviations from the survey norm

  5. Metadata Development @ Statistics South Africa

  6. All unit records of sample household surveys. 10% sample of population census unit record. All unit records are confidentialised. Who should use this?Researchers and value-add service providers What is available?Quarterly labour force survey, General household survey. Electronic Data - Unit records on CD

  7. Time series data in ASCII, Excel and PX-web that can be downloaded. PX-web allows a user to subset the data. Who should use this?The general public What is available?Building statistics, Civil cases for debt, Consumer Price Index, Electricity generated and available for distribution, Gross Domestic Product, Food and Beverages, Land Transport survey, Liquidations and insolvencies, Manufacturing Production and Sales, Mining Production and Sales, Motor trade sales, Production Price Index, Retail trade sales, Tourism and migration, Tourist Accommodation, Utilisation of production capacity, Wholesale trade sales, mid year Population Estimates Electronic Data – Time Series

  8. The web-based version of SuperCross for users to tabulate and download tables, charts and maps. Who should use this?The more advanced user looking for more detail What is available?Census 2001, Community Profiles, Community Survey 2007: Community Profiles, Income and Expenditure of Households 2005/2006 Electronic Data -Superweb

  9. View QLFS Electronic Data - Unit Records on CD

  10. Databases in Nesstar

  11. graph # of records description variable name

  12. Appropriate documentation from all involved in the survey value chain Skills to do data preparation Information technology Data management Statisticians Good telecommunication infrastructure Mid to high end stand alone desk/laptop Web servers Bandwidth Critical Success Factors for Metadata

  13. Reduced burden on resources of the NSO in responding to user enquiries promote user self service resulting in increased use of data. Statistician can focus on other work Benefits of Metadata

  14. Thank you

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