Museum Data Exchange

Museum Data Exchange: Making hay with harvestable data G ünter Waibel Program Officer OCLC Research 12 November 2009 MCN Portland

Museum Data Exchange
Harvard University Art Museums
Metropolitan Museum of Art
National Gallery of Art
Princeton University Art Museum
Yale University Art Gallery
Cleveland Museum of Art
Victoria & Albert Museum (UK)
National Gallery of Canada (CA)
Minneapolis Institute of Art
funded by Andrew W. Mellon Foundation
Create Tools Extract CDWA Lite XML Publish via OAI-PMH Harvest Data Test tools Create Research Aggregation Analyze Data Standards compliance? Interoperability? What now?

Open Archives Initiative (OAI) Protocol for Metadata Harvesting Museums OCLC Research TMS COBOAT OAICatMuseum Research Aggregation Museums Basic Interface

Extracting data and harvesting Data extraction 6 out of 9 museums used COBOAT 3 used alternative means: XSLT, Custom, Vendor support (MIMSY XG) Data harvest 6 out of 9 museums used OAI-PMH add’l 2 wanted to use OAI-PMH 3 used alternative means: SQL dumps, FTP Data validation 2 out of 9 harvests completely validated (Mostly) minor errors for the rest

Research Aggregation 9 Museums 887,572 Records

Analyzing the Research Aggregation
My data
Are CDWA Lite required fields present?
What is the state of CCO compliance of the data?
Who uses which controlled vocabularies, and does their use demonstrably aid retrieval?
Suggest strategies to work around the inevitable inconsistencies in institutional data
Aggregate data
Which CDWA Lite fields are used by all institutions?
Do queries across the aggregate return meaningful results?
How is my cataloging different from other institution’s cataloging?
Suggest strategies to work around the inevitable inconsistencies in aggregate data

Available at: http://hangingtogether.org/wp-content/uploads/2009/04/methodology_03-30-2009.pdf

Use of CDWA Lite 131 CDWA Lite units of information Museums 54% not used 8% used by all

Conformance to CDWA Lite Required/Highly recommended elements Records 90% consistency for 7 of 17 elements

Impact of COBOAT mapping
based on museum mapping documents
uses 32 units of information of the 131 CDWA Lite defined
all required/recommended elements and attributes are in the default mapping, except for <subjectTerm>
4 out of 6 COBOAT contributors used, in various combinations, 11 additional elements and attributes

Controlled Vocabularies match rates < 42%

Data Values correlated to records Top 100 <objectWorkType> All the Institution’s 100K+ Records AAT Match 27 No AAT Match 73 73% 99%

Data Values correlated to records Top 100 <nameCreator> All the Institution’s 200K+ records ULAN Match 49 No ULAN Match 51 25% 50%

What now?
“We must create a single information system which embraces all museum holdings in the United States”
- MCN/IBM 1969
“ Universal access to cultural heritage will likely soon become a reality, but museums may be losing their role as key players.” - Nicholas Crofts 2008

publishing your collections

reaching educators

reaching higher education

sharing infrastructure

projecting authority

national collaboration

Thank you!
Thanks also to my colleagues and collaborators Bruce Washburn and Ralph LeVan.
Museum Data Exchange
http://www.oclc.org/research/activities/museumdata/default.htm
- report forthcoming -
OAICatMuseum 1.0
http://www.oclc.org/research/activities/oaicatmuseum/default.htm
COBOAT
http://www.oclc.org/research/activities/coboat/default.htm
G ünter Waibel
waibelg @oclc.org
twitter: guWa
blog: hangingtogether.org

Museum Data Exchange

by OCLC Research

Accessibility

Categories

Upload Details

Usage Rights

1 Embed 2

Statistics

Museum Data Exchange Presentation Transcript