1 / 33

The Fedora Project DLF Forum Albuquerque, NM November 17, 2003

The Fedora Project DLF Forum Albuquerque, NM November 17, 2003. Sandy Payette Cornell Information Science. The Fedora Project. Fedora Digital Object Repository System Extensible digital object model Repository System exposed via Web service APIs

more
Télécharger la présentation

The Fedora Project DLF Forum Albuquerque, NM November 17, 2003

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Fedora Project DLF ForumAlbuquerque, NMNovember 17, 2003 Sandy Payette Cornell Information Science

  2. The Fedora Project • Fedora Digital Object Repository System • Extensible digital object model • Repository System exposed via Web service APIs • Scalable, persistent storage for content and metadata • Local and remote content • Associate services with objects • Content versioning • Fedora Use cases • Content Management (CMS) • Digital Library architecture • Digital Asset Management • Institutional Repository • Scholarly publishing • Preservation • Open source software

  3. Fedora History • Research (1997-present) : • DARPA and NSF-funded research project at Cornell • Reference implementation developed at Cornell • First Application (1999-2001) : • University of Virginia digital library prototype • Scale/stress testing for 10,000,000 objects • Open Source Software (2002-present): • Andrew W. Mellon Foundation granted Virginia and Cornell $1 million to develop a production-quality Fedora system • Fedora 1.0 released in May 2003

  4. Fedora Motivations • Generic model to manage/access heterogeneous content • Operations via the digital object abstraction; default disseminator • Extensibility • Add new functionality to objects via service associations • Object Lifecycle and preservation • Content versioning and event history • Content repurposing • Same content in different objects; dynamic transformations • Easy integration with other applications and systems • Web services with open APIs • Clear separation of server from clients/web user interfaces • Does not assume any one workflow or end-user application

  5. Digital Object Model

  6. Digital Object Model Architectural View System Metadata Digital object identifier Persistent ID ( PID ) Default Disseminator Service view: methods for disseminating content Extension Extension Datastream (item) Content view: Set of data and metadata items Datastream (item) Datastream (item) Internal view: key metadata necessary to manage the object

  7. Digital Object Model Simple Example System Metadata Get Profile List Items Get Item List Methods Get DC Record PID = uva-lib:100 Default Disseminator Image Disseminator Get Thumbnail Get Medium Get High Get Very High Image (mrsid) DC (xml) Thumbnail (jpeg)

  8. Some Common Use Cases [Simple Image] Image Manip + DC graph [Scholarly Publication] Document Transformation

  9. Content Versioning [Demo]

  10. Repository Systemsoftware distribution

  11. Fedora 1.2 Software Feature Set • Open Fedora APIs • Repository as web services (REST and SOAP bindings); WSDL interface defs • Flexible Digital Object Model • Content View: objects as bundle of items (content and metadata) • Service View: objects as a set of service methods (“behaviors”) • Extensible functionality by associating services with objects • Repository System • Core Services: Management, Access/Search, OAI-PMH • Storage: XML object store; relational db object cache; relational db object registry • Mediation - auto-dispatching to distributed web services for content transformation • Auto-Indexing – system metadata and DC record of each object • HTTP Basic Authentication and Access Control • Built-in disseminator services: XSLT x-form, image manipulation, xml-to-PDF • Content Versioning • Automatic version control (saves version of content/metadata when modified) • Enables date-time stampedAPI requests (see object as it looked at a point in time) • Clients • Fedora Administrator: GUI client to create/maintain objects • Default Web browser interface: search; access objects via default disseminator • Command line utilities (batch load, ingest, purge, others) • Migration Utility – mass export/ingest

  12. Management Service (API-M) Ingest - XML-encoded object submission Create - interactive object creation via API requests Maintain - interactive object modification via API requests Validate – application of integrity rules to objects Identify - generate unique object identifiers Security - authentication and access control Preserve - automatic content versioning and audit trail Export - XML-encoded object formats Access Service (API-A and API-A-LITE) Search - search repository for objects Object Reflection - what disseminations can the object provide? Object Dissemination - request a view of the object’s content OAI-PMH Provider Service OAI-DC records Fedora Repository Service Interfaces

  13. Client and Web Service Interactions user user user Client application web browser Server application Client application Fedora Service APIs Fedora Repository System Content Transform Service Content Transform Service External Service Dispatch API API

  14. Fedora Mapping to OAIS Ingest Formats (SIPs) Export Formats (DIPs) Fedora Repository System METS1.2/FO FOXML METS 1.3 DIDL METS 1.2/FO FOXML METS 1.3 DIDL R1.3 R1.3 R2.0 R2.0 Archival Format (AIP) FOXML = Fedora Object XML DIDL = Digital Item Description Language (MPEG21)

  15. Fedora Software Distribution Package • Open Source (Mozilla Public License) • 100% Java (Sun Java J2SDK1.4) • Supporting Technologies • Apache Tomcat 4.1 and Apache Axis (SOAP) • Xerces 2-2.0.2 for XML parsing and validation • Saxon 6.5 for XSLT transformation • Schematron 1.5 for validation • MySQL and Mckoi relational database • Oracle 9i support • Deployment Platforms • Windows 2000, NT, XP • Solaris • Linux

  16. Fedora in Use

  17. Projects using Fedora • University of Virginia:digital library (images, EAD, e-texts) • VTLS:basis for new commercial product (library system) • Indiana University:EVIA Digital Archive (video) • Northwestern:academic technologies (images, art, video, e-texts) • Rutgers University:digital library (e-journals, numeric data) • Tufts University:educational (VUE/concept maps); digital library • Yale University:Electronic Records Archive • New York University:Humanities Computing Group

  18. Sampling of sites using/evaluating Fedora: • JSTOR • American Geophysical Union  • NSDL at Cornell • Cornell Information Technologies • British Library • National Library of Portugal • Society of Biblical Literature • National Archives of Australia • Office of Defense Resources, Thailand • Monash University, Australia • Oxford Digital Library

  19. Fedora Downloads since May 2003 • Total downloads: 1427 • Average downloads per day: 9 • # Countries: 32 • Types of orgs: • Universities: libraries, IT, departments • Software and technology companies • Defense/military • Banks • National libraries and archives • Publishers • Research labs • Library automation vendors • Scholarly societies

  20. Fedora @ Tufts designsolution FEDORA is proving to be a flexible application development platform. Developers may dedicate more time toward building audience specific DL and educational applications. Content tools and digital resources are more easily shared among DL applications. Slide courtesy of DavidKahle

  21. Fedora @ Tufts designchallenge Create a visual tool to assist students and faculty in organizing and creating pathways through local files, digital library resources and WWW content. Slide courtesy of DavidKahle

  22. Fedora @ Tufts content maps container node Faculty may sketch out their course content, relationships and pathways through this content using a simple set of moveable objects or nodes. web resource file node relationship notes Slide courtesy of DavidKahle

  23. Fedora @ Tufts OKI & FEDORA Leveraging OKI technical standards will facilitate the sharing, distribution and integration of this new educational tool in educational systems beyond Tufts. Slide courtesy of DavidKahle

  24. [images] [art] Fedora @ Northwestern Slide courtesy of Bill Parod

  25. Fedora @ Northwestern Slide courtesy of Bill Parod

  26. Fedora @ Northwestern Image dissemination with Flash zoom viewer Slide courtesy of Bill Parod

  27. Fedora @ Northwestern Slide courtesy of Bill Parod

  28. Fedora @ NorthwesternBehaviors by Type Slide courtesy of Bill Parod

  29. [Search] [Angelica] UVa EAD Collections

  30. UVa Images [image]

  31. Fedora Object XML (FOXML) Internal storage format; direct expression of Fedora object model Better support for relationships (“kinship” metadata) Better support for audit trail (event history) Format identifiers for dynamic service binding Shibboleth authentication Policy Enforcement XACML expression language Fedora policy enforcement module Web interface for easy content submission Batch object modification utility Administrative Reporting Object Event History (ABC/RDF disseminations) Better support for “collections” New ingest and export formats (METS1.3, DIDL) Future Software Releases December 2003 – December 2004

  32. Digital Library in a Box Full-featured DL application with “Fedora inside” Optimized for common set of content types Fedora Power Server Integrity Management Tools Service and link liveness checker Fault Tolerance Mirroring and Replication Peer-to-peer interoperability features Repository clustering Load balancing Object Creation Tools Workflow applications based on content models Web interface for document/content submission Future Development Proposals

  33. Questions www.fedora.info Release 1.2 on December 10, 2003

More Related