Cold, Dark, and LonelyAn Archive Moves OnlineBryan BeecherIT DirectorICPSR

What’s ICPSR?

• Inter-university Consortium for Political and Social Research

• Clients– Higher education– US Government– Our “hot, flat, and crowded” world

• In business since 1962

What do we do?

• Acquire, curate, and deliver social science data to researchers, students, policy-makers, etc.– JSTOR of data

• Cover many different fields– Political Science, Economics,

Sociology, Demography, Criminal Justice, and many more

What content do we curate?

• Primarily survey data– Also aggregate government data

(such as Census data)

• Tabular– Rows = respondents– Columns = variables

• SAS, SPSS, Stata, even Excel

ICPSR and OAIS

• Clients deposit data (ingest)• ICPSR normalizes content into plain

text data (ASCII, Unicode) and “setups” for stat pkgs + adds metadata (ingest + data mgmt)

• Preserves content (archival storage)• Makes it available to others (access)

Access

• Mechanisms have evolved over time• Tapes + USPS• FTP• Gopher• Web

Archival Storage

• Historically kept two copies on tape– Off-line, local (Ann Arbor, MI)

• Worked, but– Expensive– Cannot browse– Are the bits OK?

• “The Warehouse”…

But then in 2006…

• Created Chief Preservation Officer role– Nancy McGovern

• Assigned Archival Storage engineering and operations to the IT shop– Bryan Beecher

2006 - 2008

• Digital Preservation Management program begins

• Warehouse cleared, closed• Tapes read, checked, destroyed• 6TB of content over 600k unique files• Lots of files

– Not so “cold” and “dark” any more…

Fedora, Part 1

• Lots of files, not so much metadata• Always know the aggregate object

(“study” number)• Use simple Fedora Content Model

(the data “keepsake”) to store the content

• Small step from “files” to “objects”

Fedora, Part 2

• Would really like “smarter” objects– Strongly typed– Well defined relationships– Rich services

• Definitely possible, particularly for more modern content (post 2002)

• If only we had the time and money…

NSF EAGER grant

• EArly-concept Grants for Exploratory Research– Eighteen months for 1.5 people

• Deliverables– CMA for social science data and docs– Packaging tools to create FOXML– Nifty SDeps and SDefs

Thank you!

Bryan Beechertechaticpsr.blogspot.com