Page History

...

Collection objects are Fedora objects that have "child" objects that are gathered into a collection in the Islandora display. If you want to make a collection of PDFs in Islandora, you would start by creating a collection object that has the PDF Content Model. Because of Fedora's ability to automatically create relationships between objects, every data object you add to (ingest into) this collection would become becomes a member of that collection , and would have with a content model of PDF.

Every instance of Islandora starts with a root collection object. This collection object has the Collection Content Model, enabling more collections to be created as children (sub-collections) of the root collection. These sub-collections can have their own sub-collections, or can contain any type of data object as defined in the collection policy datastream of each collection.

Data Object

Data Objects objects are the files ingested into the repository and any associated metadata, derivatives, or related files that should be managed as a single digital asset in the repository. For example, one image (such as a TIFF file) and its associated datastreams (such as descriptive and technical metadata, thumbnails, and access derivatives in other formats) make up a “data object.” Fedora also stores relationship metadata in datastreams that connect objects to parent collections, content models, and other related objects.

...