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The FOXML metadata for a digital object is the metadata that must be recorded with every digital object to facilitate the management of that object. FOXML metadata is distinct from other metadata that is stored in the digital object as content. This type of metadata is the metadata that is required by the Fedora repository architecture. All other metadata (e.g., descriptive metadata, technical metadata) is considered optional from the repository standpoint, and is treated as a Datastream in a digital object.
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