StatDCAT-AP respects the conformance requirements defined for DCAT-AP version 1.1 (https://joinup.ec.europa.eu/release/dcat-ap-v11), which means that it will have, at least, the same mandatory classes and mandatory properties as DCAT-AP 1.1. StatDCAT-AP may extend DCAT-AP by specifying additional properties, as long as they are reused from existing RDF vocabularies. StatDCAT-AP may also provide usage notes for properties that already exist in DCAT-AP with specific recommendations for their use for statistical data.
During discussion with stakeholders, the following recommendation was proposed for the property keyword of Dataset.
It is proposed that the property ‘keyword’ is used to expose the ‘dimensions’ of the observations contained in the Dataset.
The expected value for this property is a text string with the name of a SKOS concept scheme or code list (see https://www.w3.org/TR/vocab-data-cube/#schemes).
Participants in this activity are asked to respond to the following questions:
- Is the information for this property available in existing statistical systems and applications?
- How will exposing this information to general data portals enhance the discoverability of statistical datasets?
Please note that there is also a proposal (https://joinup.ec.europa.eu/discussion/dimensions-property) to expose these dimensions in a separate property for Dataset where they would be identified with URIs.
Comments
The WG decided in the meeting of 13 May 2016 not to express dimensions as keywords. This issue is now closed.
The proposal to express dimensions using a separate property is still open, see https://joinup.ec.europa.eu/discussion/dimensions-property.