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Time-Based Media Preservation Repository
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- 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.
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Fedora Triplestore Use Cases:
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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.
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