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Fedora 4 is a Linked Data Platform server as defined by the Linked Data Platform 1.0 specification. As such, many of the terms in this glossary are drawn directly from this specification. |
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Access Role
A named role, such as "writer", that is assigned to a user, group or some other identifying principal within part of the repository. Roles may be used by the policy enforcement point (PEP) to authorize actions taken in the repository.
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See: NonRdfSourceDescription
Dissemination
An approach previously available in Fedora 3 that allowed for binding a service to a content model. Note: disseminators, as such, do not exist in Fedora 4.
Federation (aka Projection)
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Resources are the primary organizational structure in the repository. A resource is any web-addressable entity, such as a container, a nonRdfSourceDescription, or a binary. Every resource has a name and a unique identifier, and can also be identified by a path. They are comprised of zero or more properties / child resources.
Tombstone
A tombstone is a repository resource indicating that a container, binary, or nonRdfSourceDescription used to exist at a given URL. A tombstone is created when a resource is deleted or moved.
Transactions
A transaction represents a series of changes to the repository that must execute successfully and completely or not at all. Transactions should be used to ensure consistency. Each transaction succeeds or fails as a complete unit; it cannot remain in an intermediate state.
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