1. Output from time-based media digitization workflow is uploaded out-of-band to HPSS-based HSM system via PFTP, GridFTP, or Globus Online:

• Master (as large as 100-200GB), mezzanine, and derivative video files in .mov, .mxf, and/or .mp4 wrappers
• Master and derivative audio files in Broadcast WAV (.bwf) and .mp4
• Technical, process history, and descriptive metadata in XML files
• File checksums (MD5)

2. Fedora projects over content and metadata stored in HPSS and on filesystem in order to manage fixity and mediate access.

Collection manager finds identifier for audio/video object for which he/she wants to download master or mezzanine file and makes request for file through locally-developed web application. Fedora is able to authorize download of file based on user's identity, user/group permissions on object, and group membership information obtained via LDAP from Active Directory. File (may be as large as 200GB) is downloaded from HPSS to user-designated location.

a. bottom up: Given an object, list all the parents of all levels

b. top down: For a collection, we would like to know hierarchical structure of the object, even the relationship stored on its children. would like to know how many children of the object and how many grandchildren for each of its children...

c. statistical information for the objects with particular datastream on repository level: for example, we need to know how many items have a PDF file for a particular collection.

A great many example queries that have proved useful in the past are documented here.

Easily insert/delete one layer of the existing object hierarchy.