mdl digital image preservation prototype
DESCRIPTION
MDL Digital Image Preservation Prototype. Minnesota Digital Library & HathiTrust. 17 March 2011 Library Technology Conference 2011. Eric Celeste [email protected]. MDL wants to keep the masters safe... and so do other organizations around Minnesota. What do we need?. - PowerPoint PPT PresentationTRANSCRIPT
MDL Digital Image Preservation Prototype
MDL Digital Image Preservation Prototype
Minnesota Digital Library & HathiTrustMinnesota Digital Library & HathiTrust
17 March 201117 March 2011Library Technology Conference 2011Library Technology Conference 2011
MDL wants to keep the masters safe... and so do other
organizations around Minnesota.
MDL wants to keep the masters safe... and so do other
organizations around Minnesota.
What do we need?What do we need?
•Capability to handle multiple formats.
•Workflow for partners beyond Reflections.
•Bit preservation plus some option for metadata and migration.
•Of two minds about access... dark? light? dim?
•Clear governance model, well defined roles.
•Capability to handle multiple formats.
•Workflow for partners beyond Reflections.
•Bit preservation plus some option for metadata and migration.
•Of two minds about access... dark? light? dim?
•Clear governance model, well defined roles.
MDL embarked on a prototype digital
preservation project with HathiTrust
MDL embarked on a prototype digital
preservation project with HathiTrust
What we sent to HathiTrust
What we sent to HathiTrust
Packages
Reflections Simple Reflections Simple ContoneContone
22,186
Reflections Compound Reflections Compound ObjectsObjects
888
Minnesota Historical Minnesota Historical SocietySociety
6,860
Total 29,934
What we sent to HathiTrust
What we sent to HathiTrust
Items GB
Simple JP2Simple JP2 22,186 429
Compound JP2Compound JP2 13,844 407
Compound Bitonal TIFFCompound Bitonal TIFF 13,272 1
JPEGJPEG 9,575 12
Total 49,302 849
What we sent to HathiTrust
What we sent to HathiTrust
Number of items transferredNumber of items transferred Amount of data transferredAmount of data transferred
ObjectsObjects
What we sent to HathiTrust
What we sent to HathiTrust
An “object” sent to An “object” sent to HathiTrust is a HathiTrust is a “Submission “Submission Information Information Package” and Package” and consists of many consists of many parts: a METS file parts: a METS file with a variety of with a variety of metadata, a set of metadata, a set of image files, and a image files, and a set of set of corresponding text corresponding text files. The image files. The image files are the files are the “items” sent.“items” sent.
What did we learn from working with
HathiTrust?
What did we learn from working with
HathiTrust?
Get the full report at...http://mndigital.org/projects/preservation/
Get the full report at...http://mndigital.org/projects/preservation/
What is a master?What is a master?
Where is the identifier?Where is the identifier?
Metadata madness!Metadata madness!
Do you trust us?Do you trust us?
Who’s looking?Who’s looking?
No free lunch.No free lunch.
No free lunch.No free lunch.Time as
ProducerCost as
ProducerTime as
Aggregator
Cost as Aggregat
or
Programmer 672h 0m 0s
$8,000 2352h 0m 0s
$28,000
Metadata Assistant
100h 0m 0s
$2,000
Manager 40h 0m 0s $2,800 30h 0m 0s $2,100
Totals $12,800 $30,100
Next Steps?Next Steps?
•Trials with MetaArchive and OCLC Digital Archive.
•Paper and phone evaluations of a few others.
•Decisions in May about how to proceed.
•Talk to someone on the MDL Management Team if you have input you would like to share.
•Trials with MetaArchive and OCLC Digital Archive.
•Paper and phone evaluations of a few others.
•Decisions in May about how to proceed.
•Talk to someone on the MDL Management Team if you have input you would like to share.
Questions?Questions?