Customer needs:
- create a digital copy because the source item is a high risk for loss of information (usually due to deterioration or obsolescence), and/or
- exhibit or other researcher purposes require a high quality copy
Product solution: The final product should be at high-to-maximum information capture standards that satisfy long term preservation needs.
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- This file is placed in a managed storage environment and retained for the long term.
- This file satisfies both long term preservation needs and researcher requests for high quality files.
- Because of the high capture specifications, this file could confidently take the place of the original record if the original record is no longer viable.
- This file can make other files including exhibition/broadcast quality files, reproduction masters and distribution copies.
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Customer needs:
- create a digital copy to minimize risk due to frequent handling or high use (but not address high risk of information loss due to deterioration or obsolescence), and/or
- improve access options.
Product solution: The final product should range from minimum-acceptable to less than high-to-maximum information capture levels to satisfy limited risk and access needs when maximum quality levels are not needed.
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- This file is placed in a managed storage environment and retained for the long term it represents a significant time and resource investment and/or is part of a coherent set. If the file can be regenerated from a preservation master with minimum effort, it is usually not managed and retained.
- This file satisfies most researcher requests as well as limited preservation risks including loss, theft, and mishandling.
- Because the capture/transfer specifications are closer to or at the minimum recommended level, this file would not be an optimal substitute for the original record if the original record is no longer viable.
- This file can be generated from a preservation master or be the highest quality file created in a project.
- This file can make other files including distribution copies.
Definition of coherent set
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Customer needs:
- create digital files for specific distribution and access systems, and/or
- there is no reason to retain the files after the distribution or access goal is met.
Product solution: The final product should meet the file requirements of the specific delivery systems. In general, these products emphasize small file sizes and faster transfer rates over high quality levels.
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- This file is retained only as long as needed to satisfy a specific distribution need. It is not actively managed over a long term.
- Other files would not be generated from this file.
- This file is not intended to substitute for the original record if the original record is no longer viable.
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