This wiki space is archived.

The active wiki for the Samvera Community can be found here:

Child pages
  • Draft Wikipedia entry

This wiki space is archived. The active wiki for the Samvera Community can be found here:

Skip to end of metadata
Go to start of metadata
Relevant Wikipedia Policies

Markup of actual submission returned by Wikipedia in this attachment>> wikipedia_markup.txt .  Later version than the draft below.

Refused citing conflict of interest and plagiarism of



Hydra repository project

*** Text struck through is not backed up by the three general references: we need independent verification of it still.  ***

Founded in 2008, the Hydra Project is a large, multi-institutional collaboration which has produced a digital repository solution that is being used by institutions around the world to provide access to their digital content.  The Project gives these like-minded institutions a mechanism to combine their individual repository development efforts into a collective solution with breadth and depth that exceeds the capacity of any individual institution to create, maintain or enhance on its own.  The motto of the project is "if you want to go fast, go alone.  If you want to go far, go together.”  Hydra software is open source, released under the Apache 2 license; it uses a combination of Ruby on Rails, Blacklight, Apache Solr and the Fedora Commons repository software.

The Hydra collaboration supports an active community spanning universities, museums, libraries and public broadcast organisations: there are users, who are deploying the software to meet their own institutional needs, and partners in the Project who not only use the software but have formally committed to help further the collaboration and its aims. Many members of the community contribute to developing Hydra's code base.

Hydra has a public website and a wiki used for more detailed information.  The Project holds a number of meetings each year for users and Partners, and Partners hold a monthly conference call.  Between meetings and calls, members of the community make wide use of several mailing lists and an IRC channel.  In addition, the Project arranges workshops and training camps each year spanning Europe, North America and, in 2014, South America.

Hydra has been used to create and manage small and large, searchable collections of digital objects.  The system is content agnostic, which is to say that any type of digital content can be managed.  The software employs flexible access controls: thus, for instance, some material in a repository may be available to the public with no login required, whilst other content may be available only with appropriate credentials.  In a single repository it is possible to have publicly available content, content available only to faculty, content available only to faculty and students, content available only to students on particular courses, and so on. 

A list of Hydra's current Ruby gems is maintained on one of its wiki pages and the project's code and documentation is in a Github repository.



Awre, C. and Duke, M. (2013). Storing and sharing data in an institutional repository - Hydra@Hull. DCC RDM Services case studies. Digital Curation Centre, Edinburgh

Committee on Coherence at Scale for Higher Education (2013). Hydra Project. Council on Library and Information Resources, Washington DC

Cramer, T. & Awre, C. (2012): Hydra.  COAR Project Briefings (Confederation of Open Access Repositories), Göttingen, Germany




The following bibliography contains references for material that mentions or discusses the Hydra repository project

Journal Articles and Published Conference Proceedings

Awre, C. (2012).  Hydra UK: Flexible Repository Solutions to Meet Varied Needs. November 2012, Ariadne (70)

Awre, C. & Cramer, T. (2012). Building the Hydra Together: Enhancing Repository Provision through Multi-Institution Collaboration. Journal of Digital Information 13(1), Texas Digital Library.

Cramer, T. & Kott, K. (2010). Designing and Implementing Second Generation Digital Preservation Services: A Scalable Model for the Stanford Digital Repository. D-Lib Magazine, 16(9/10).

Dunn, J. W. & Baker, S. L. (2013). The Avalon media system: a platform for access-controlled delivery of time-based media. In: Proceedings of the 13th ACM/IEEE-CS joint conference on Digital libraries. 455-456, Association for Computing Machinery, New York, NY , USA

Giarlo, M. and Hswe, P. (2013). Community Spotlight: ScholarSphere.  DLF Community Spotlight Series, Digital Library Foundation, Washington DC.

Green, R. & Awre, C. (2009). Towards a Repository-enabled Scholar's Workbench.  D-Lib Magazine, 15(5/6).

Rimkus, K. & Habing, T. (2013). Medusa at the university of Illinois at Urbana-Champaign: a digital preservation service based on PREMIS.  In: Proceedings of the 13th ACM/IEEE-CS joint conference on Digital libraries. 49-52, Association for Computing Machinery, New York, NY , USA

Stuart, D., Aitken, B., Abbott, D., Chassanoff, A., Hedges, M., &McHugh A. (2011). Content Models for Enhancement and Sustainability: Creating a Generic Framework for Digital Resources in the Arts and Humanities. Communications in Computer and Information Science Volume (240), 234-244, Springer, Berlin & Heidelberg

Valls, A. & Guasch, R. (2013). Escena digital 2.0, repositorio del Museo de las Artes Escénicas (MAE).  El profesional de la información 22(3) 244-249, Barcelona, Spain.

Waddington, S., Zhang, J., Knight, G., Hedges, M., Jensen, J., & Downing, R. (2012). Kindura: Repository services for researchers based on hybrid clouds.  Journal of Digital Information 13(1), Texas Digital Library.



Awre, C., Cramer, T., Green, R., McRae, L., Sadler, E. (Bess), Sigmon, T., Staples, T., & Wayland, R. (2009). Project Hydra: Designing & Building a Reusable Framework for Multipurpose, Multifunction, Multi-institutional Repository-Powered Solutions. A presentation given at the international Open Repositories 2009 conference in Austin, Texas

Awre, C., Green, R. & Lamb, S. (2012). Towards a mature, multi-purpose repository for the institution.  A presentation given at the international Open Repositories 2012 conference in Edinburgh

Conrad, A. (2013).  From content silos to an integrated digital repository.  eBooks on Demand 2013 conference, Prague, Czech Republic

Coughlin, D. and Giarlo, M. (2013). Architecting ScholarSphere: How We Built a Repository App That Doesn't Feel Like Yet Another Janky Old Repository App. A presentation given at the 2013 code4lib conference in Chicago, IL, USA

Cramer, T. (2013). Hydra: State of the Project. A presentation given at the international Open Repositories 2013 conference in Charlottetown, Prince Edward Island, Canada.

Cramer, T., Green, R., McRae, L., Sigmon, T., & Wayland, R. (2009). Case Studies in Repository Workflows: Three Approaches.  A presentation given at the international Open Repositories 2009 conference in Austin, Texas

Green, R. (2011).  Hydra in Hull.  A presentation given at the international Open Repositories 2011 conference in Austin, Texas.

Johnson, R., Giarlo, M. and Ruggaber, R. A Hydra Community Story: Breadth vs. Depth? What Makes a Successful Digital Library? A presentation given at the 2013 DLF Forum in Austin, Texas.  Digital Library Foundation, Washington DC, USA.

Wang, Z. & Johndon R (2013) Collaborating to Manage Research Data.  Coalinition for Networked Information (CNI) fall meeting, Washington DC



Catsagné, M. (2013). Institutional repository software comparison: DSpace, EPrints, Digital Commons, Islandora and Hydra, University of British Columbia

Digital Commonwealth News Blog (2013). BPL (Boston Public Library) Announces Beta Release of the New Digital Commonwealth Repository, Digital Commonwealth (Massachusets Collections Online)

Food and Drug Administration (2013). Fedora/Hydra Developer, FDA Digital Library of Modeling & Simulation, $90k, Food and Drug Administration, Silver Spring, Maryland (in

Awre, C. & Green, R. (2011).  Hydra in Hull Final Report.  JISC (Joint information Systems Committee), London

Northwestern University Library (2011). IU and NUL Receive an IMLS Grant to Build an Open Source Video Managment System. Northwestern University, Evanston, IL

ORCID (2013).  Adoption and Integration Program.  ORCID, Bethesda, Maryland

Owens, T. & Kariani, K (2013). Hydra’s Open Source Approach: An Interview with Tom Cramer. Library of Congress, Washington DC

Penn State University Libraries (2013). ArchiveSphere FAQs. Penn State University

Yale University Library (2013).  Hydra.  Yale University


Developers:  The Hydra Project community

Stable release:  The latest release information can be found at:  Gems and documentation

Operating system:  Cross-platform, but in production generally Linux

Type:  Digital libraries

License:  Apache 2



Hydra Project official website

Hydra Project wiki




  • No labels