The Archive has been a driver and implementation of metadata standards.
We actively work with the following three standards:
The Data Documentation Initiative (DDI) is the de facto metadata specification for social science data, and has a large and active international community of users and developers. It was originally created to capture the information found in survey codebooks, and it is used basic study-level catalogue metadata and rich variable description for survey files by many data publishers across the world. Data publishers regularly make it available as DDI XML.and via OAI-PMH for exposing their holdings.
It is maintained by the Data Documentation Initiative Alliance, a membership-driven consortium including universities, data archives, and international organisations.
The Archive's use of the DDI Codebook: We use the DDi 2.5 for our collection-level records in the Data Catalogue and in our Nesstar online data browsing system.
DDI Working Group on Qualitative Data: In 2013, this group produced a detailed and complex model to accommodate the widest range of possibilities and use cases for qualitative data. QuDEx represents a very simple subset of this larger model.
The Text Encoding Initiative (TEI) is a widely used metadata standard for describing textual documents. It is maintained by a consortium which collectively develops and maintains a standard for the representation of texts in digital form.
The Archive's use of the TEI: While the TEI has many profiles, the UK Data Service uses it for:
The Qualitative Data Exchange Schema (QuDEx) allows users to discover, find, retrieve and cite complex qualitative data collections in context.
The schema is complementary to DDI and enables:
The standard is maintained by the UK Data Archive, and the project overview and outputs can be accessed from the DExT site.
The Archive's use of QuDEx: The UK Data Service's QualiBank uses the schema, along with the TEI and DDI Codebook
Schema and documentation