Hello all-
I'm in the final stages of preparing a set of MODS records for a
digitized slide collection
<http://www.dlib.indiana.edu/collections/cushman/> for exposure via the
Open Archives Initiative (OAI), and I need to make a final decision
about how to represent the digitized item (or any of the 4 [sometimes 5]
versions of it!), as opposed to the original analog item. The MODS
records are not being converted from MARC - I'm converting them from a
local metadata format.
What seems to me to be the right thing to do is to have the MODS record
describe a specific digitized version of the image that the <identifier
type="uri"> in the MODS record points to. I'd then include a
<relatedItem> area with a <physicalDescription> referencing the analog
original. So the relevant parts of a record would look something like
this:
<!-- DRAFT!!! -->
<physicalDescription>
<internetMediaType>image/jpeg</internetMediaType>
<digitalOrigin>reformatted digital</digitalOrigin>
<note>Original 35mm slide was digitized in 2003 as a TIFF image.
Display versions in JPEG format in three sizes are available.</note>
</physicalDescription>
<identifier
type="uri">http://purl.dlib.indiana.edu/iudl/archives/cushman/P10010</id
entifier>
<relatedItem type="otherFormat">
<physicalDescription>
<form authority="gmd">graphic</form>
<extent>1 slide : col. ; 35mm</extent>
<note>Original 35mm slide was digitized in 2003 as a TIFF image.
Display versions in JPEG format in three sizes are available.</note>
</physicalDescription>
</relatedItem>
But most of the MODS records I see out there (mostly LC records exposed
via OAI) don't take this approach. They generally have
<physicalDescription> of the analog item, and contain an <identifier
type="uri"> pointing to an online digitized version. I'm assuming this
is because they're being created from source MARC records originally
created for the analog original, then an 856 field was added when a
digital version was created. But I could be wrong about that.
So what is everyone else out there doing? If you had infinite time to
tweak mappings to make MODS records look their "best," how would you
represent an original analog vs. a digitized item?
Thanks!
Jenn
========================
Jenn Riley
Metadata Librarian
Digital Library Program
Indiana University - Bloomington
Main Library E170
(812) 856-5759
www.dlib.indiana.edu
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