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Metadata at ICPSR

Metadata at ICPSR. Sanda Ionescu, ICPSR. Metadata at ICPSR -Catalog Records-. Created by data processors, who fill out a Web-based form: Fixed fields, DDI 2.x and 3.0 compatible. Metadata at ICPSR -Catalog Records-. Metadata at ICPSR -Catalog Records-.

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Metadata at ICPSR

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  1. Metadata at ICPSR Sanda Ionescu, ICPSR

  2. Metadata at ICPSR-Catalog Records- • Created by data processors, who fill out a Web-based form: • Fixed fields, • DDI 2.x and 3.0 compatible

  3. Metadata at ICPSR-Catalog Records-

  4. Metadata at ICPSR-Catalog Records- • Review and approval by metadata specialist • Stored in ORACLE database • Exported from database to DDI 2.1 XML • XML files stored on server (file system) • HTML and PDF presentation created dynamically (through XSLT stylesheets) at user request • HTML presentation for viewing only; PDF is downloadable http://www.icpsr.umich.edu/cocoon/ICPSR/STUDY/08589.xml

  5. Metadata at ICPSR-Catalog Records- • DDI-XML files searched by field from home page to retrieve studies (Inktomisearch)

  6. Metadata at ICPSR-Codebooks- • HERMES – in-house automated process to generate (most of) the study distribution package: • Input: • SPSS system or portable • Optional pre-formatted (question) text file • Output: • Full suite of statistical formats (setups and system) • ASCII data file • DDI 2.1 file with frequencies and question text if available

  7. Metadata at ICPSR-Codebooks- • DDI 2.1 file may be converted to PDF to generate • An “ICPSR” codebook http://www.icpsr.umich.edu/cgi-bin/bob/archive2?study=4699&path=ICPSR&docsonly=yes • Part of the publicly distributed codebook as other non-DDI resources may be incorporated http://www.icpsr.umich.edu/cgi-bin/bob/archive2?study=4512&path=ICPSR&docsonly=yes • In some instances a DDI-based codebook will not be generated http://www.icpsr.umich.edu/cgi-bin/bob/archive2?study=9522&path=ICPSR&docsonly=yes

  8. Metadata at ICPSR-Codebooks- • The DDI 2.1 file with variables description • Is archived • Is downloaded into the Social Science Variables Database (SSVD)

  9. Metadata at ICPSRSocial Science Variables Database • Also built in ORACLE, but currently a separate entity, with links to studies’ and series’ descriptions. • Includes variable-level metadata. • Is DDI 2.x and 3.0 compliant (input and output) • Will enable variable-level searches across studies and series of studies (simple SQL queries - retrieve matches, do not infer relevance)

  10. Integrating DDI 3 into ArchivesSRO-ICPSR collaboration project ICPSR: SRO: SAS/SPSS/Stata files Other… DDI 3.0 Blaise output DDI 2.x Common RELATIONAL DATABASE model for data documentation - Compliant with DDI 3.0 - Client Applications… Web Applications… ICPSR: Variable-level Search ICPSR projects will be able to use documentation generated by SRO projects…

  11. Metadata at ICPSR-Online analysis- • Survey Documentation and Analysis (SDA) • Approx. 475 studies – data and documentation in proprietary format (ddl), DDI 2.x-compatible. • Nesstar - used only as a “test” (currently not in production mode) https://www.icpsr.umich.edu/ICPSR/access/sda.html

  12. Metadata at ICPSR • Other study documentation • Questionnaires • User guides • Data definitions Distributed in machine-readable, but non-searchable formats – PDF, ASCII, Excel, etc. http://www.icpsr.umich.edu/cgi-bin/bob/archive2?study=4512&path=ICPSR&docsonly=yes

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