FAIR Metric - F3 - Metadata - includes its own identifier

This metric evaluates whether the metadata record explicitly includes the
identifier of the research object(s) it describes.

F3 requires that metadata include the identifier(s) of the research object(s) it describes.
To align with FAIR, if a metadata record is separated from its associated research object
(which is common in harvesting and indexing), the connection between them must be
explicitly preserved. This metric is concerned with the explicit linkage aspect
of FAIR; F3 ensures that a machine-actionable relationship exists, allowing
harvesters to unambiguously navigate from a descriptive metadata record
back to the research object itself. Because many research objects cannot be
arbitrarily extended to include references to their metadata, in many cases the
only means to discover the metadata related to a research object will be
to search based on the identifier of the research object itself.

While Principle F1 focuses on the qualities of the identifier schema
being used (globally unique, persistent and resolvable), Principle F3
relates to the linkage aspects of the research object identifier. It does not
mandate that the identifier of the research object within the metadata record
be immediately resolvable; rather, it requires that the identifier is present,
and formally structured so that the relationship can be maintained and
indexed by automated services.

The discovery of a research object should be possible
from its metadata. For this to happen, the metadata must explicitly
contain the identifier for the digital resource it describes, and this
should be present in the form of a qualified reference. This metric
evaluates whether the identifier provided as input resolves to
metadata that contains a research object identifier. Further,
that research object identifier must be distinguished
from the numerous other fields and values that will be present in the metadata.