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Any Fedora object is represented by a complete FOXML document. For more information, please see Managing access control with permissions and user roles.
To ingest an object is to add an entry for it in the Fedora Repository. This is done primarily through the Islandora Repository interface in an Islandora site's Drupal front-end. Upon ingest, an object is created in Fedora, and its associated PID and datastreams are attached to it.
The word 'ingest' is used in repository language because repository software, rather than having an object and associated components forced upon it, takes in and processes the object itself. Often, when referring to the process of ingesting objects, Islandora and its associated documentation use other terms such as 'import' or 'add object'. In such contexts, these terms generally refer to the ingest process.
The namespace is a component of the persistent identifier (namespace:ID). The namespace is defined in the collection policy, and will then be used to generate PIDs for the objects ingested into that collection.
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A Parent-Type Object is an object that has a relationship with the CollectionCModel islandora:collectionCModel declared in the policy datastream, making it possible for additional objects to have a relationship with (or be "children" of) that object.
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