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DIGITAL PRESERVATION: Communicating Across C yber s pace t ime

1 st International Symposium: Digital Preservation Interoperability Framework 21 April 2010 Dresden, Germany Kenneth Thibodeau, Director Center for Advanced Systems and Technology National Archives and Records Administration, U.S.A.

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DIGITAL PRESERVATION: Communicating Across C yber s pace t ime

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  1. 1st International Symposium: Digital Preservation Interoperability Framework 21 April 2010 Dresden, Germany Kenneth Thibodeau, Director Center for Advanced Systems and Technology National Archives and Records Administration, U.S.A. DIGITAL PRESERVATION: Communicating Across Cyberspacetime

  2. Developing a Roadmap for theDigital Preservation Interoperability Framework in terra incognita

  3. Developing a Roadmap for theDigital Preservation Interoperability Framework in the face of continuing technological obsolescence

  4. CYBERTERRA INCOGNITA

  5. What can we assume about ICT in the future ? Everything we use will be obsolete

  6. What will the future think about our ICT? It will seem puny

  7. What do we know about future ICT? ? ? ? ? ? ? ?

  8. A Roadmap to the DPIF? What Do We Know? What DON’T We Know? • Some data we want to preserve • Current demands • Current information technology • Technology obsolescence • Growing variety and complexity of formats • Format Obsolesence • How to be sure we pick the right data to preserve • How to preserve and sustain access to data in most formats being produced • Future technology • Input capabilities • Processing Capabilities • Output Capabilities • Interface specifications • Future Demands

  9. The only wisdom we can hope to acquire is the wisdom of humility: Humility is endless. T. S. Eliot

  10. Envisioning a Digital Preservation Interoperability Framework

  11. Exterior View: Digital Preservation Interoperability Framework • The boundary between what will and will not be possible for using preserved digital data regardless of • Source • Location • Representation • Materialization • Inteterval between data production and use

  12. Interior View: Digital Preservation Interoperability Framework • The principles, concepts, standards and methods for buidling and sustaining • A multi-channel, multi-media, multi-purpose network for asynchronous communication over cyber space and time • Where we don’t know requirements at the receiving ends, • Other than that they change

  13. Mapping the Infrastructure for Digital Preservation Interoperability A Cybergraphic Information System Model

  14. Mapping the Infrastructure for Digital Preservation Interoperability Cyberspace is the locational reference base for a Cybergraphic Information System Model of the DPIF

  15. Cyberspace • The Internet • Systems & Applications that are connected directly or indirectly to the Internet • The rules, policies and standards that govern and enable production, persistence, communication & consumption of digital data • The 5th dimension • Connected to physical spacetime • Enabling things to exist and happen that are impossible in 4-D • Chris Greer , Office of Science and Technology Policy Executive Office of the President, USA.

  16. Cybergraphic Information System Model for Digital Preservation • Re-use and Re-purposing • Information Object Set • Information Object • Data Object • Data • Cyberspacetime

  17. Preservation Objects in the DPIF • An Information Object Set • And its subsets and elements • Information Object • And the Data Objects it comprises • Data Object • And the Data it comprises

  18. Cybertime • Enables communications that are: • Instantaneous • Asynchronous • Polychronic • Elastic

  19. Architecting the Digital Preservation Interoperability Framework

  20. OAIS Structure for a Digital Preservation System SIP • Designated Community AIP AIP AIP AIP Designated Community Designated Community DIP DIP DIP DIP The Open Archival Information System (OAIS) Reference Model

  21. An Interoperable Infrastructure? A Facet of the DPIF • Producer • OAIS • Designated Community

  22. OAIS Interoperability Limits SIP Other Uses Repur-posing Other Users • Designated Community AIP AIP AIP AIP Designated Community Orphan Users • Designated Community Orphan Users DIP Other Users Other Users DpIP DIP X DIP Other Uses DIP The Open Archival Information System (OAIS) Reference Model

  23. DPIF: Enabling Multi-faceted Interoperation • Producer • OAIS Other Users • Designated Community

  24. User Centric Preservation Services Services R. Wilensky. Personal Libraries: Collection Management as a Tool for Lightweight Personal and Group Document Management . 2000

  25. User Centric Preservation Services Services R. Wilensky. Personal Libraries: Collection Management as a Tool for Lightweight Personal and Group Document Management. 2000

  26. User Centric Preservation Services Services

  27. Examples of User Purposed Collections User Collection • Doctoral Candidate • Professor & students in a course • Government Bureau • Multi-disciplinary International Research Project • Data and publications relevent to dissertation • Syllabus, primary and secondary sources, and student work products,…. • Reports , public comments, and external data related to impact of policy ,…. • Research protocol, observed data, derived data, publications, administrative records ,….

  28. User Centric Preservation Services Services R. Wilensky. Personal Libraries: Collection Management as a Tool for Lightweight Personal and Group Document Management . 2000

  29. User Centric Preservation Interoperability over Time Service Provider Service Provider Service Provider

  30. A Framework for Digital Preservation Interoperability Users Data Ser-vices

  31. DPIF Capabilities, Characteristics and Services

  32. User-Centric DPIF Capabilities • Allow users to define collections drawing content from various repositories • Persist user-defined collections • Enable users to invoke services on collections from arbitrary providers • Support dynamic links between user-defined collections and repositories • Support appropriate use of data

  33. Loci of Preservation Services • Within Individual Collection • Within Individual Repository • Over the DPIF • Synergistic • Standard across cyberspace • Operating between and among collections and repositories; • Internal • Implemented within repositories or collections • Can be adapted or extended locally • Across Cybertime

  34. Locus: Collection Services • Collection Management • Collection Services • Document Services • Repository Services • R. Wilensky. Personal Libraries

  35. Locus: Repository Services • Ingest • Data management • Preservation Planning • Dissemination • Administration • Open Archival Information System Reference Model

  36. Locus: Over the DPIF • Repository/Collection/Provider Focus • Data Type • Data Provenance • Data Processing • Presentation

  37. DPIFRepository/Collection/ProviderFocus • Synergistic Services • Identification of repositories, collections, service providers • Characterization of content and services • Certification of identity and trusworthiness • Assessment of performance • Interface specification for interoperation • Negotiation of interoperation contracts • InternalServices • Management Tools

  38. DPIF Data Type Services • Synergistic • Data type taxonomy • Data type/format registration • Data processing service taxonomy • Internal • Format identification & verification tools • Format conversion tools

  39. DPIF Data Provenance Services • Synergistic • Characterization of Data Provenance Tools • Provenance tracking across cyberspace • Provenance enforcement • Version Control • Internal • Provenancetools for preservation processes

  40. DPIF Data Processing Services • Synergistic • SIP/DIP Transmission • AIP Translation & Transmission • Internal • Packaging tools • Ingest tools • Transformation tools • Analytic tools • Presentation tools

  41. Cybertime Services • Contemporary Interoperation • Enable operation of synergistic and internal preservation services given that multiple generations of data sets, data types, technologies and implementations exist in cyberspace at any given time. • Persistence • Support continued operation of preservation services in the face of changes in technology at different velocities • Graceful Evolution • Facilitate transition when changes in services are necessitated by changes in technology • Facilitate introduction of new services enabled by advances in technology.

  42. Building the DPIF

  43. Fundamental Characteristics of the DPIF Users • Independent of Implementation • i.e., effective across • Heterogeneous platforms • Independent administration • Generations of technology • Semiotic domains • Evolvable • Extensible • Agile • Interstitial Data Ser-vices

  44. Development of the DPIF: Exterior View • The Periphery of the DPIF needs to • Facilitate transmission of data into and out of the presevation environment • Allow local irregularities to enable optimization for particular producers, repositories, collections, services and for re-use and re-purposing • Expand gradually

  45. Tiered Approach toPreservation Interoperability Stefan Gradmann, INTEROPERABILITY. A key concept for large scale, persistent digital libraries. Digital Preservation Europe. September 2008. Abstract Concrete

  46. Open Interoperability forPreservation & Use creative enabling the generation of new, trustworthy information from heterogeneous sources, applying novel methods Abstract Concrete

  47. Incremental Development of the DPIF • Address Users, Data and Services in each increment • Facilitate the emergence and persistence of Networks of Preservation within specialized data domains or areas of activity • Including various repositories, collections and service providers • Sharing common standards, data, services, contracts • Develop Use Cases • Enable superposition of Networks of Practice • Identify and address barriers to interoperation

  48. For more information:www.nara.gov/ncast

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