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Technical services for data: an overview

Learn about finding, checking, and delivering data to users, including reference interview process, accessing Canadian statistics and microdata, and obtaining data from the Data Liberation Initiative (DLI).

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Technical services for data: an overview

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  1. Technical services for data: an overview DLI orientation Kingston, Ont. April 5, 2004 Laine G.M. Ruus laine.ruus@utoronto.ca University of Toronto. Data Library Service URL for this document: http://www.chass.utoronto.ca/datalib/misc/dli/2004/tech_serv04.ppt

  2. Outline: • Finding the right data • Getting the data from DLI • Checking the data • Getting the data to the user • Saving the data

  3. 1. Finding the right data

  4. The reference interview process: Needs to establish: • Geographic area to be covered • Smallest geographic area to be described • Time period • Population (unit of observation) to be described • Subject matter (variables), in terms that can be expressed in numbers

  5. Reference interview process (cont’d): • Objective: what the user intends/needs to do with the numbers • Does the user need aggregate statistics, microdata, or spatial data (map) files? • What software the user intends to use? • How would the user like the data delivered?

  6. Finding the right statistics (aggregate data): • Statistics Canada daily: http://www.statcan.ca/english/dai-quo/ • STC catalogue of products and services: http://www.statcan.ca/english/search/ips.htm

  7. Finding the right statistics (cont’d): • IDLS (UWO): http://janus.ssc.uwo.ca/idls/ • Sherlock: statistical and geographic data http://ivt.crepuq.qc.ca/english/crepuq-ivt-e.html • Finding Canadian statistics: http://www.chass.utoronto.ca/datalib/other/findcans.htm

  8. Finding the right microdata: • IDLS (UWO): http://janus.ssc.uwo.ca/idls/ • QWIFS http://library.queensu.ca/webdoc/ssdc/index.htm#survey • Sherlock: statistical and geographic data http://ivt.crepuq.qc.ca/english/crepuq-ivt-e.html • TST (Thematic search tool; 1986-1998 only) http://www.statcan.ca/english/Tst/ssint.htm

  9. IDLS

  10. QWIFS

  11. Thematic Search Tool (TST)

  12. What you need to know about the data: • Title of the data set/data file • The appropriate subfile (physical file) • Are aggregate data/anonymized microdata disseminated? • Who disseminates the data; who has a copy? • Under what conditions are they disseminated? • How much do the data cost? • What format are they in? What metadata comes with them?

  13. 2. Getting the data from DLI DLI home page: http://www.statcan.ca/english/Dli/dli.htm

  14. Data from DLI are disseminated: • On cd-rom • Via http • Via ftp

  15. Products disseminated only on cd-rom: • New products received are announced on dlilist: http://www.statcan.ca/english/Dli/sub.htm • Order via dliorder on the DLI web site: http://www.statcan.ca/english/Dli/contacts.htm • Only DLI official contacts have access to this part of the site • Account and password are sent periodically to official contacts via e-mail • The IP address of the workstation you are using must have been registered with <jackie.godfrey@statcan.ca>

  16. To order a copy

  17. (alphabetic order by title)

  18. Files via Web server (http): • DLI collection web page: http://www.statcan.ca/english/Dli/collection.htm • Includes both aggregate data and microdata files (but no census or geography products) • Only DLI contacts can download data • Metadata are public access • Order print codebooks through dliorder

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