Guidelines
for Usage |
The
RELATION.TYPE element identifies 12 ways in which the primary
resource is related to a secondary resource. Once the type of
relationship is identified, then the element RELATION.IDENTIFIER
is used to provide a locator, accession, or identification for
the related resource to be found.
The various types of relations are defined as
follows:
- Has Format: The described resource pre-existed
the referenced resource, which is essentially the same intellectual
content presented in another
format.
- Is Format Of: The described resource is the
same intellectual content of the referenced resource, but presented
in another
format.
- Has Part: The described resource includes the
referenced resource either physically or logically.
- Is Part
Of: The described
resource
is a physical or logical part of the referenced
resource
- Has Version: The described resource has a version,
edition,
or adaptation,
namely, the referenced resource.
- Is Version
Of: The described resource is a version, edition, or adaptation
of the referenced
resource. Changes in version imply substantive
changes
in content rather than differences in format.
- References: The described resource references,
cites, or otherwise points to the referenced resource.
- Is
Referenced
By:
The described resource is referenced, cited, or
otherwise pointed to by
the
referenced resource.
- Replaces: The described resource supplants,
displaces, or
supersedes the referenced resource.
- Is Replaced
By: The described
resource is supplanted, displaced, or
superseded by the referenced resource.
- Requires: The described resource requires the
referenced resource to support its function, delivery,
or coherence of content.
- Is Required By: The described resource is
required by the referenced resource, either physically or
logically.
If an alternative representation of the primary
audio presentation for a resource exists (see Language.Usage
and
Description.ProgramRelatedText), then the actual instantiation
of
that
alternative
representation may use the RELATION.TYPE
and RELATION.IDENTIFIER elements to identify
itself. |