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Exploring the SARs and Nesstar: Anonymised Data Interfaces and Metadata Management

Discover the features and benefits of working with SARs and the Nesstar data interface. This resource provides samples of anonymised microdata from the 1991 and 2001 censuses, including access to up to 5 million case files with numerous variables. Learn about Nesstar Publisher's role in metadata management, including its consistency checks and import/export capabilities that enhance data usability. We explore how users can update metadata easily and create various outputs like HTML and PDF codebooks, all from a single DDI master file.

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Exploring the SARs and Nesstar: Anonymised Data Interfaces and Metadata Management

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  1. Is this thing on?

  2. The SARs and Nesstar Sam Smith Data Interface Developer Samples of Anonymised Recordswww.ccsr.ac.uk/sars/

  3. About the data:Samples of Anonymised Records • Microdata from 1991 & 2001 censuses • Currently 5 files of up to 2 million cases and up to 150+ variables (each) • 5 million case file soon (less variables) www.ccsr.ac.uk/sars/

  4. Nesstar Suite as a whole • It’s reliable. • It works. • Enough said.

  5. Nesstar Publisher • Keeper of (most of) our metadata for files. • Checks consistency. • Import and Export facilities Single biggest reason why we use it so much.

  6. Can we do…? Yes • Often get unpredictable bits of information to add, or changes that we need to make. • Ability to import/export the metadata to a text editor/perl script valuable. • As is validation when it comes back again.

  7. Export to DDI • We put our DDI on our website for people using our data to use/reuse. • More people using our metadata makes it better. People find bizarre bugs. • XML is simple and easy to transform • People can find what they’re looking for

  8. Other uses • Generation of HTML codebooks • Generation of PDF codebooks. • All from the same DDI master file: • Webview microdata • Online variable lists + metadata • Codebooks for printing • everything are all created from the same files.

  9. Updating Metadata • The process: • Make a change in Publisher. • Save as DDI • Run a script.

  10. What this gives us • Metadata consistency • Ease of update. • Ease of reuse by anyone • A (relatively) quiet life.

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