<p>Fedora (Flexible Extensible Digital Object Repository Architecture) was originally developed by researchers at Cornell University as an architecture to store, manage, and access digital content in the form of digital objects. Fedora defines a set of abstractions for expressing digital objects, asserting relationships among digital objects, and linking behaviors to digital objects. Developed by the community and stewarded by Duraspace —  a nonprofit involved with open source technology projects including VIVO and DSpace — Fedora Commons implements the Fedora abstractions in an open source, modular repository system for managing and disseminating digital content. </p><p>Fedora Commons is widely used in the academic sector as a basis for digital libraries, archives, or repository systems. Its worldwide installed user base includes academic and cultural heritage organizations, universities, research institutions, university libraries, national libraries, government agencies, and more.</p><p>Management and maintenance of any digital content type and of metadata about content in any format</p><p>Scale to millions of objects</p><p>Access data via APIs (REST/SOAP)</p><p>Provide RDF search (SPARQL)</p><p>Rebuilder utility (for disaster recovery and data migration)</p><p>Entire repository can be rebuilt from the digital object and content files</p><p>Content model architecture (define "types" of objects by their content)</p><p>Many storage options (database and file systems)</p><p>JMS messaging (your apps can "listen" to repository events)</p><p>Web-based administrator GUI (low-level object editing)</p><p>OAI-PMH provider service</p><p>GSearch (fulltext) search service</p><p>Multiple, customer driven front-ends</p>