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 ad-hoc from a secondary service (experimental, use at own risk!)

purpose

An indication of the intended usage of the present virtual collection

research

The virtual collection bundles resources that are relevant to a specific research (question).

reference

The virtual collection bundles resources, that are to be cited in a publication.

sample

This virtual collection bundles is intended to serve as an sample for research data

future-use

The purpose of this virtual collection is not specified yet. Used in published collection is advised against.

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

reproducibility 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

creators

One or more persons, who created this virtual collection.
[Guidance note] Add a creator for each person involved in the creation of this virtual collection

resources

A persistent reference to the members that make up this virtual collection. These members may be of type metadata for referencing metadata or resource for directly referencing a resource.
[Guidance note] Click 'add' to add an individual reference of the type 'Metadata' or 'Resource' and optionally add a label and/or description. Click 'add more' to add multiple references (one per line) of one type without labels or resources. Individual resources can be edited at any stage.

The following are only relevant for intensional virtual collections

[query] description

A prose description of the procedure by which the collection items can be retrieved from the external service.

[query] URI

The location of the service from which the items should be retrieved. This value may be a persistent identifier, but could also be a plain URI although this is advised against for published collections.

query profile

Identifier of the mechanism, i.e. the protocol to be used, by which the members of the virtual collection should be retrieved. A application exploiting the query can use this to use a proper driver to talk to the service. Example: In case of CLARIN-FCS access the endpoint by FCS-compatible means.

query value

The query that should be passed on to the service by which it can look up the items that are part of this collection. This value should be in the query language supported by the service. Example: In case of CLARIN-FCS, this value is the CQL query to be send to the endpoint.