C: Relation
- Within this section:
- What is this element?
- Relation and other elements
- Qualifiers
- Examples
Definition: A reference to a related resource.
Obligation: Optional.
What is this element?
Relation identifies a relationship between the resource being described and another resource. Refinements specify the type of relationship between the two resources.
This provides a way to identify information (documents) necessary for using a service (including prerequisites) and supports the linking or integration of a number of services.
Users can then follow through trails of interrelated resources, including the various steps in a service. It is also useful for:
- linking items in multiple parts;
- different versions of the same resource; and
- items available in multiple formats.
So that the nature of the relationship may be understood it is recommended that you use the appropriate "refinement". Reference the related resource by its Identifier and/or Title, as appropriate.
When describing an Agency, use Relation.replaces to reference previous agencies that have been (in at least significant part) incorporated into the current agency.
Use this element to describe relationships that are significant from the searcher's point of view - not all relationships.
When you note a relationship, as good practice, please take the time to make sure that the other resource also has the relationship recorded.
Relation and other elements
Use Relation with the appropriate refinement such as: isBasedOn, isVersionOf, or replaces instead of Source.
Qualifiers
Refinements
To give the context of the relationship, use one of the refinements. There are seven pairs of relationship terms - a 'to' and a 'from'. Choose one or other of the pair - otherwise it won't make sense. Reference the related resource by its Identifier and/or Title.
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isVersionOf |
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. |
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hasVersion |
The described resource has a version, edition, or adaptation, namely, the referenced resource. |
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isReplacedBy |
The described resource is supplanted, displaced, or superseded by the referenced resource. |
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replaces |
The described resource supplants, displaces, or supersedes the referenced resource. |
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isRequiredBy |
The described resource is required by the referenced resource, either physically or logically. |
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requires |
The described resource requires the referenced resource to support its function, delivery, or coherence of content. |
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isPartOf |
The described resource is a physical or logical part of the referenced resource. Used to describe the relationship between a service and relevant documents (e.g. web pages and forms). |
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hasPart |
The described resource includes the referenced resource either physically or logically. |
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isReferencedBy |
The described resource is referenced, cited, or otherwise pointed to by the referenced resource. |
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references |
The described resource references, cites, or otherwise points to the referenced resource. |
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isFormatOf |
The described resource is the same intellectual content of the referenced resource, but presented in another format. |
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hasFormat |
The described resource pre-existed the referenced resource, which is essentially the same intellectual content presented in another format. |
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isBasisFor |
The described resource pre-existed the referenced resource, which is a performance, production, derivation, translation, or interpretation of the described resource. |
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isBasedOn |
The described resource is a performance, production, derivation, translation, or interpretation of the referenced resource. |
Encoding Schemes
URI - Uniform Resource Identifier for online or electronic resources. This includes the other schemes "Uniform Resource Locator" (URL) and "Uniform Resource Names" (URN).
Enter a URI in full, i.e. you must include the part before the colon as it identifies the scheme being used, e.g. http://.
See: RFC2396: Uniform Resource Identifiers (URI): Generic Syntax, August 1998 http://www.ietf.org/rfc/rfc2396.txt
Examples
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(references) Ministry of Education strategic plan |
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(references) [URI] http://www.minedu.govt.nz/web/document/document_page.cfm?id=3522 |
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(isBasisFor) [URI] http://www.winz.govt.nz/student/maori_alt.html |
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(isPartOf) [URI] http://student.winz.govt.nz/apply.html |
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(requires) Please note that you will be asked for your IRD number, bank account number, Student ID and study details. You may wish to read through the form to make sure you have the appropriate information at hand before you start filling in the form |
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(hasPart) [URI] http://www.winz.govt.nz/student/maori_alt.html |
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