Definitions, descriptions and guiding texts to be shown in the VCR front-end application

extensional

Type of virtual collection that explicitly enumerates the references to resources or metadata documents that make up the collection

intensional

Type of virtual collection that defines a query by which the items of the collection can be retrieved from a secondary service

purpose

An indication of the intended usage of the present virtual collection

reproducibility

An indication of the degree to which results obtained from processing of the present collection can be expected to be stable

intended reproducibility

Processing results can be expected to remain stable

fluctuating reproducibility

Processing results may vary

untended reproducibility

No claims with respect to the stability of the processing results are made

reproducability note

Optional notes describing the expected reproducibility of processing results in more detail

keyword

a word or short phrase signifying a salient facet of the present virtual collection