Special Collections @ DU Overview
Statement of Purpose
Within the larger context of the missions of the University of Denver and the University Libraries, the mission of Special Collections @ DU is to provide services for the preservation of and access to digital assets inherent to the research, information, and educational mission of the University of Denver.
Digital DU serves as a standards-based repository and infrastructure supporting a diverse set of applications, services, and discovery tools that offer long-term management, secure storage, preservation solutions, and, generally, open access to digital assets of enduring value.
The University Libraries are committed to managing and maintaining the digital assets in Special Collections @ DU for the use and benefit of current and future generations.
I. Access Policy
Active content should be discoverable by all. Some content may have restricted access based on group membership, embargo periods, copyright, licensing, or other issues.
II. Collection / Content Policy
The University Libraries oversee the collections and content of Digital DU. Digital DU projects are under the oversight either of the University Libraries directly (Class A), by agreement with a University of Denver unit (Class B), or agreement with a faculty member (Class C).
*Class A: The University Libraries directly oversee the collection and content of these projects. This could be content owned by the Library, or developed in agreement with an outside entity.
*Class B: An agreement is in force between the University Libraries and a University of Denver unit. A project manager affiliated with the unit has oversight of the project and is responsible for ensuring that the project meets DU Digital standards. The level of involvement of the University Libraries with a partner is negotiated on a case-by-case basis.
*Class C: Similar to Class B, except the agreement is with an individual University of Denver faculty member or administrator.
B. Scope of Content Allowed
Content must be related to the educational mission of the University of Denver. Distribution rights or copyright must be held by the contributor. Examples of acceptable content include faculty publications for which copyright is held by the contributor (preprints, postprints, technical reports, statistical data, etc.), University of Denver films, conference proceedings hosted at or by the University of Denver, and departmental research projects. Examples of unacceptable material include personal music or video collections used for entertainment or recreation, or personal storage of copyrighted content (ex. JSTOR articles).
The unit or individual submitting the content vouches for the accuracy of the content and that there are no intellectual property violations. Material discovered to be out of scope, especially in cases of copyright infringement, will be subject to post-submission review by the University Libraries.
Contributed content must be complete and ready for distribution and preservation.
As far as University records are concerned, only permanent records will be managed in the LDR.
C. Permanence of Content
It is expected that all content deposited is for permanent retention. Under rare circumstances content may be withdrawn. Items withdrawn will be removed from view, but to avoid loss of the historical record, all such transactions will be traced in the form of a note in the record:
“Removed at the University of Denver’s discretion”
“Removed at the University Libraries' discretion”
“Removed by legal order”
When content is removed the metadata will remain in the system, but will not be searchable in public mode.
III. Format Policy
Any digital format may be submitted to the repository. However, some formats are supported, meaning that the repository takes responsibility for preserving and migrating as appropriate. Unsupported formats can be preserved, but not migrated. A list of supported formats will be maintained and distributed by the Library.
IV. Storage Allocation Policy
The Alliance storage array may include both centrally-managed Alliance storage and decentralized member-contributed storage.
Storage allocation will be governed by the Alliance policies. The University Libraries will manage the University of Denver allocation on a case-by-case basis.
Technical Overview and Specifications for Digital DU
The digital repository service offers digital content for faculty, staff, and students as well as the broader community. Most of the content in the repository is unique (not published anywhere else) and represents the local emphasis of each repository site. The repository helps to protect, preserve, and organize digital content so it will be available for use in years to come. In 2011-2012 the Alliance Digital Repository (ADR), the digital consortium function of the Colorado Alliance of Research Libraries, changed its platform to a Drupal based content management system called Islandora. Digital DU is a member of the ADR.
Islandora is an open source framework developed by the University of Prince Edward Island's Robertson Library in 2006. It leverages both the expertise of PHP/Java/Python developers and of librarians and other information professionals. Islandora makes it possible to create, edit, discover, view, and manage repository assets based upon an open source philosophy. The Islandora project combines and harnesses the power of the Drupal content management system and the FedoraCommons Repository software to create a robust digital asset management system that can be used to meet the short and long-term collaborative requirements of digital data stewardship.
FedoraCommons Repository Software lends itself to data stewardship via a unique content and relationship modeling framework that preserves the integrity of collections and can be modified to manage any digital asset. This means that Fedora collections are uniquely persistent, no matter what new software lurks around the corner.
In the Islandora system, Drupal acts as an interaction layer atop Fedora, enabling users to discover, view, and manage Fedora objects. Drupal is a very popular, module-based content management system that understands Islandora as a suite of modules.
Some of the main component features of Islandora are:
Solr: Written primarily in Java, Solr is an open source search function which features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, rich document handling, and geospatial search.
FlexPaper: Flexpaper is an open source web based document viewer that allows the user to access most text documents (e.g., Word, PDF) regardless of proprietary domains.
djatoka: djatoka is a Java-based open source image server which provides compression and region extraction of JPEG 2000 images, URI-addressability of regions, and support for a rich set of input/output image formats (e.g., BMP, GIF, JPG, PNG, PNM, TIF, JPEG 2000).