Repository Architecture

DIDO -- Digital Images Delivered Online DLC -- Digital Library of the Commons Hohenberger Photographs Lilly Sheet Music U.S. Steel Cushman Victorian Women Writers Project Variations2 Wright American Fiction Project Hoagy Carmichael Collection
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Digital Library Infrastructure

General background information:

Infrastructure process overview


  1. All objects go through the Ingest Tool Workflow.
  2. Most content is ingested through a variant of the Object Ingest Tool, although the old Ingest Tool is still useful for some content.
  3. After data is ingested, it must be indexed for searching.
  4. Eventually, a Validation System will ensure that data entering the repository is consistent.


  • Cataloging is currently performed outside the repository on a per-collection basis.
  • A new Image Cataloging Application is under development.

Discovery and access

Basic object access:

Most objects in the repository can be rendered in an appropriate web application. Depending on the type of content, this may be:


Historical information

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