...
also Access copy, Access derivative; see FADGI glossary page: http://www.digitizationguidelines.gov/term.php?term=derivativefile
Any Derived from the Production file, any file that results from further editing, transformation, or content analysis and extraction. Examples are lower-resolution, compressed representations of content (JPEG images, MP3 audio files), OCR-extracted text (e.g. hOCR, ALTO files), XML documents describing the structure and content (e.g., METS, TEI), PDF documents. Also includes transcripts/cations (e.g. as text documents or WebVTT files).
Derivative files are vaulted to UTL's tape archive if the derivative process cannot be automatically or deterministically reproduced: lower-resolution derivative image files can be easily recreated from a production copy, and do not need to be vaulted to tape. Uncorrected OCR results can be recreated from images (at better quality) as time passes. Manually corrected OCR text is the result of intellectual labor, and should be preserved, similarly METS and TEI representations of documents typically involve manual intervention and should be kept. PDF documents can be regenerated, if they are created through an automatic process from images, METS XML and OCR results.
Some of the Derivative files are generated automatically upon ingest into the DAMS, e.g., lower-resolution JPEG images, thumbnail images and MP3 audio files. Other derivatives can be created outside of the DAMS and added to the digital representation of an asset as an additional datastream.
Ancillary files
Includes for instance carrier photographs or other documentation about the analog carrier(s) necessary/useful for using the material.
| Attachments | ||
|---|---|---|
|