The Stanford Digital Repository in the Digital Library Ecosystem

Katherine Kott, Stanford University

RDAP Institutional Repository Panel

Denver, CO

March 31, 2011

Framing the IR Discussion

• Ed Summers (LoC) adapted Ranganathan’s five laws– Repository objects are for use– Every reader his/her repository object– Every repository object its reader– Save the time of the reader [service?]– The repository is a growing organism

First Generation Repository Development

• Violated several laws– Heavyweight requirements for depositors did

not scale (time intensive)– Difficult to return objects to depositors in

“native” state (difficult to enable use, reuse)– Monolithic design prohibited adjustment

without total redesign (no capacity for organic growth)

SDR 2.0 Infrastructure

• Support a “growing organism” (scalable)• Lower barrier to deposit

– Save the time of the [depositor]

• Base development path/priorities on use cases– Repository objects are for use– Every reader his or her repository object– Every repository object its reader

The IR within the Digital Library Ecosystem

Microservices in the Ecosystem

Actual Use Cases/Diverse Content

• IR content– ETDs– Science data– Conference proceedings– Archival collections (including digital forensics lab

output)

• Library content (curated collections)– Google books– EEMs

ETDs

Technical Environment

• Fedora for DOR and SDR• Microservices robots performing workflow

tasks• “Hydra” user interface development

– Blacklight– Solr

What about Standards?

• Compliant with OAIS reference model• JHOVE• BagIt• Premis (lite)

THANK YOU!

Katherine Kott

Stanford University Libraries

kkott@stanford.edu