Indiana University Use Cases

Fedora Use Cases:

Title (goal)	Ingest of large audio and video files
Primary Actor	Audio/video digitization workflow scripts
Scope
Level
Story	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 and/or .mp4 wrappers Master and derivative audio files in Broadcast WAV and .mp4 Technical, process history, and descriptive metadata in XML files File checksums (MD5) 2. Fedora ingests / takes on management of content and metadata already stored in HPSS.

Title (goal)	Dissemination of large audio/video files
Primary Actor	Collection manager/curator
Scope
Level
Story	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, permissions on object, and group membership information obtained via LDAP. File (may be as large as 200GB) is downloaded from HPSS to user-designated location.

Fedora Triplestore Use Cases:

Title (goal)	Easy traversal against the triplestore
Primary Actor
Scope
Level
Story	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, event the relationship stored on it's 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.

Title (goal)	Support Flexible data model change
Primary Actor
Scope
Level
Story	Easily insert/delete one layer of the existing object hierarchy.

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