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VidArch

This project explores the challenges of preserving video objects and their context, aiming to make videos not only accessible, but also understandable in the future. It focuses on developing a preservation framework, capturing contextual information, and creating video-enhanced finding aids.

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VidArch

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  1. VidArch Preserving Video Objects and Context: A Demonstration Project Helen R. Tibbo School of Information and Library Science University of North Carolina at Chapel Hill tibbo@ils.unc.edu

  2. Funding for this Project This work was supported by a grant from the National Science Foundation #IIS 0455970 DigArch Program JCDL 2006 Chapel Hill, NC June 13, 2006

  3. Sanghee Oh Yaxiao Song VidArch Team • Gary Marchionini • Helen Tibbo • Christopher Lee • Paul Jones Special Thanks to SILS Students: • Dawne Howard • Terrell Russell JCDL 2006 Chapel Hill, NC June 13, 2006

  4. VidArch Partners • National Aeronautics and Space Administration (NASA) • Association of Computing Machinery (ACM) • Open Video (OV) • ibiblio JCDL 2006 Chapel Hill, NC June 13, 2006

  5. Challenges of Video Preservation • Temporal medium with multiple information representation channels • Multiple visual and audio • Human-readable or machine-readable content. • Video object’s meaning is greater than the sum of its parts; • Preservation must attend to the whole as well as the parts. JCDL 2006 Chapel Hill, NC June 13, 2006

  6. Goals of Project • Make videos not only accessible, but also understandable in the future; • Develop a preservation framework for digital video context that includes preservation of persistent context; • Develop a workflow model that focuses on the capture of contextual information; • Explore the design and feasibility of a video or multimedia-enhanced finding aid; • Develop decision support tools for the acquisition, ingest, and preservation of context. JCDL 2006 Chapel Hill, NC June 13, 2006

  7. Theoretical Foundation • Builds from OAIS Reference Model; • Blends conceptualizing power of archival finding aids with complexity and information-rich nature of video; • Based in the vision that long-term provision of contextualized access • Makes digital objects understandable over time; • Is essential to long-term preservation; • Is dependent on metadata. JCDL 2006 Chapel Hill, NC June 13, 2006

  8. Metadata • Several schemes and standards – METS, NLNZ, etc.; • Preservation metadata – PREMIS; • What is needed for long-term access and understandability? • Object-specific annotations; • Collection-level descriptions and integration/ links among objects; • State of the world information. JCDL 2006 Chapel Hill, NC June 13, 2006

  9. Context… • Can make materials useful and comprehendible across time and space; • Is a hallmark of a well-written finding aid; • Is often expensive to capture. JCDL 2006 Chapel Hill, NC June 13, 2006

  10. Open Video • Housed within SILS; • Collects and makes available digitized video content for a wide audience; • Significantly, Open Video began as a project to provide researchers with access to video to facilitate the study of video problems; • It now finds itself a repository with preservation as well as access needs. JCDL 2006 Chapel Hill, NC June 13, 2006

  11. JCDL 2006 Chapel Hill, NC June 13, 2006

  12. NASA Collection • 2003, partnered with NASA Langley’s Center for Distance Learning; • OV provides digital video file version of four educational programs; • Video comes from NASA and passes through the OV workflow. JCDL 2006 Chapel Hill, NC June 13, 2006

  13. NASA Collection on OV JCDL 2006 Chapel Hill, NC June 13, 2006

  14. ACM Collection • Videos presented at research conference sponsored by the Association of Computing Machinery; • SIGCHI has accepted juried videos since 1983; • 427 videos in OV’s ACM collection; • Videos of widely varying quality with a range of metadata. JCDL 2006 Chapel Hill, NC June 13, 2006

  15. VidArch Methodology • Explore Open Video workflow; • Identify sources of context from OV workflow process; • Build framework to articulate sources of context in OAIS model and OV workflow; • Create media-enhanced finding aids that capture context. JCDL 2006 Chapel Hill, NC June 13, 2006

  16. Digital Archiving & OAIS Model • OAIS indicates the importance of contextual information but does not describe how to specify it; • We seek to develop a further articulation of how context can best be preserved within the OAIS framework. JCDL 2006 Chapel Hill, NC June 13, 2006

  17. Finding Aids & Context • Traditional tools of archivists but have not often been exploited in digital library settings; • FAs provide context for access and understandability over time; • FAs involve substantial intellectual work and professional judgment on the part of archivists. JCDL 2006 Chapel Hill, NC June 13, 2006

  18. NASA Collection Finding Aid JCDL 2006 Chapel Hill, NC June 13, 2006

  19. Finding Aids • FAs can contain several levels of hierarchy: • the entire collection; • series and subseries; and • listing of individual materials. • Encoded Archival Description FAs can take advantage of multiple media, hyperlinks, and interactive behaviors. JCDL 2006 Chapel Hill, NC June 13, 2006

  20. VidArch View of Finding Aids • Traditionally, context in finding aids relates to the entities involved in the creation of the records • individuals, • organizations and functions, and • the nature of the records themselves. • VidArch is identifying a typology of elements (Object, Agent, Event, Time, Place, Related Concepts), to be documented within video collections. JCDL 2006 Chapel Hill, NC June 13, 2006

  21. VidArch View of Finding Aids • FAs should be considered not just access devices but also digital objects; • FAs should be ingested into the OAIS and preserved along with the target videos; JCDL 2006 Chapel Hill, NC June 13, 2006

  22. Life Cycle of Digital Videos from NASA in Open Video JCDL 2006 Chapel Hill, NC June 13, 2006

  23. Workflow and Sources of Context • The solid arrows in the figure show current information flows; • Dashed arrows indicate potential for capturing further contextual information; • 1st Stage: Functional provenance within NASA; • 2nd Stage: Video production activities NASA; • 3rd Stage: Distribution of the video. JCDL 2006 Chapel Hill, NC June 13, 2006

  24. NASA Video Context Analysis Sheet • Target Video Object • Name • Program • Episode • URL • Entity within Video to be Contextualized • Name • Category (Object, Agent, Event, Time, Place, Related Concepts) • Relation (What role the entity is playing) JCDL 2006 Chapel Hill, NC June 13, 2006

  25. Name URL of Item Providing Context Relation Resource Type Location Type of File/Object Time to Find Size of File Openly Accessible Annotations/Comments NASA Video Context Analysis Sheet • Item Providing Context JCDL 2006 Chapel Hill, NC June 13, 2006

  26. NASA Video Context Analysis Sheet JCDL 2006 Chapel Hill, NC June 13, 2006

  27. Curator’s OAIS Responsibilities • Curators of digital video collections must decide what subset of the total potential documentation (existing or created by the curator) related to the digital videos should be • reflected in the descriptive and access tools of the archive and • submitted to the archive as SIPs in order to be ingested for long-term preservation. JCDL 2006 Chapel Hill, NC June 13, 2006

  28. Ongoing & Emerging Collaborations • SILS, ibiblio, & Open Video • The Internet Archive & Prelinger Archive • San Diego Supercomputer Center • Renaissance Computing Center and UNC Institutional Repository efforts. JCDL 2006 Chapel Hill, NC June 13, 2006

  29. Thank You! Slides from this presentation will be found at: http://ils.unc.edu/vidarch tibbo@ils.unc.edu JCDL 2006 Chapel Hill, NC June 13, 2006

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