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PBCore, METS, PREMIS, MODS, METSRights...oh my!

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Presentation given at the Association of Moving Image Archivists Conference, November 14, 2009 in Savannah, GA. Part of the panel PBCore: What is it good for?

Presentation given at the Association of Moving Image Archivists Conference, November 14, 2009 in Savannah, GA. Part of the panel PBCore: What is it good for?

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  • 1. PBCore, METS, PREMIS, MODS, METSRights... oh my! Kara van Malssen Senior Research Fellow, NYU Preserving Digital Public Television AMIA 2008
  • 2. Preserving Digital A little bit about the Public Television Project • Identify at-risk born digital public television content • Build an OAIS-compliant prototype GOALS: repository • Explore and apply standards • Create selection guidelines • Research sustainability models, copyright encumbrances
  • 3. Project Partners SIP site Repository WNET WGBH NYU PBS Library of Congress
  • 4. Producing Stations Satellite Station Transmitting A Stations Station B WNET WGBH Station Station Station C A B Station Station C D PBS Station Station WNET E F Station Station G H Station Station I J WGBH NYU PDPTV Prototype Repository Submission Workflow
  • 5. NYU Goals: • Create a prototype repository for long term retention • Aggregate content from partner stations + PBS for sample programs • Populate records with metadata that already exists (in station databases, files, scheduling systems, etc) • Transform data and package content, while preserving relationships between items
  • 6. Important Vocabulary •The Repository: NYU prototype preservation repository • OAIS : Open Archival Information System OAIS • SIP: Submission Information Package Terms! • AIP : Archival Information Package
  • 7. Applying standards • Normalize disparate metadata • XML based • One uniform scheme • Easier to manage over the long term • Rules, vocabularies, schemas help maintain consistency
  • 8. SD HD SD Broadcast Production Production Broadcast Broadcast Master Master Master Master Master (mov/aiff/ (mov) (mxf) (mov/data) (mpeg) m2v) DATABASE EXPORTS PODS TEAMS PRO INMAGIC TRACK ADDITIONAL ITEMS Scripts, etc Challenge of managing SIP Class 1: WNET National SIP Class 3: WNET Local Broadcast diverse Broadcast (Nature) (New York Voices) SD Production HD SD Broadcast Production SIPs: Broadcast Broadcast Master Master Master (mxf) Master Master (mov/aiff/ (mxf) (mov/data) (mpeg) m2v) PODS PRO INMAGIC INMAGIC TRACK SIP Class 2: WGBH National SIP Class 4: Religion and Ethics Broadcasts SD SD Broadcast Production Broadcast Production Master Master Master Master (mov/aiff/ (mov) (mov/aiff/ (mov) m2v) m2v) TEAMS Scripts, PODS PODS PRO etc TRACK
  • 9. PDPTV metadata model METS: Metadata Encoding and Transmission Standard Structural and administrative PBCore: Public Broadcasting Metadata Dictionary Descriptive and technical PREMIS: Preservation Metadata Implementation Strategy Technical preservation metadata
  • 10. METS : Metadata Encoding and Transmission Standard • Provides a structure to bundle all content (essence + metadata) in one AIP • Identifies types of metadata, but not the terms to define them (with a few exceptions) METS fileSec amdSec dmdSec structMap techMD rightsMD sourceMD digiprovMD behaviorSec
  • 11. PBCore : What is it good for? • Descriptive metadata elements that are specific to public broadcasting • Controlled vocabularies with broadcast terms • Easy to map to from legacy station databases • Granular technical metadata (PBCore 1.2) ➡ Accurately represents the file specific metadata ➡ Can be auto populated using technical metadata extraction tools & sytlesheets
  • 12. PREMIS : Preservation Metadata Implementation Strategy Intellectual Object Entity: Entity •Creating Rights application info •Playback environment Object Agents (hardware and software Events
  • 13. Issue of Redundancy between standards METS PBCore Title Structure Creator Description Relationships Agents Rights File Format Checksums File Size Hardware Software PREMIS
  • 14. Putting it all together METS PBCore Title Structure Creator MODS Description Relationships Agents Rights File Format Checksums File Size Descriptive elements only map to MODS Hardware Software METSRights! PREMIS
  • 15. METS fileSec amdSec dmdSec structMap techMD rightsMD sourceMD digiprovMD behaviorSec
  • 16. METS amdSec dmdSec techMD rightsMD fileSec structMap
  • 17. AIP creation simplified 1. Content submitted, verified 2. METS automatically generated (checksums into METS attributes) 3. Source database exports automatically converted to PBCore 4. Technical metadata extracted from files using MediaInfo, converted to PBCore 5. MODS created from completed PBCore 6. Rights metadata (METSRights), preservation metadata (PREMIS) created 7. AIP complete
  • 18. SD HD SD Broadcast Production Production ESSENCE FILE Broadcast Master Master Master Master Broadcast (mov/aiff/ (mov) (mxf) Master TYPES (mov/data) m2v) (mpeg) METS METADATA METS PBCore PREMIS Rights MODS Original ADDITIONAL ITEMS Scripts, database etc exports AIP Class 1: Nationally distributed content (Nature) SD AIPs: HD Broadcast Production Broadcast METS Master Master Master (mov/aiff/ (mxf) (mov/data) m2v) Original METS database PBCore PREMIS MODS Rights exports AIP Class 4: Religion and Ethics SD Broadcast Production Original METS Master Master database (mov/aiff/ (mov) exports m2v) METS Scripts, PBCore PREMIS MODS Rights etc
  • 19. SD HD SD Broadcast Production Production Broadcast Broadcast Master Master Master Master Master (mov/aiff/ (mov) (mxf) (mov/data) (mpeg) m2v) DATABASE EXPORTS PODS TEAMS PRO INMAGIC TRACK ADDITIONAL ITEMS Scripts, etc Challenge of managing SIP Class 1: WNET National SIP Class 3: WNET Local Broadcast diverse Broadcast (Nature) (New York Voices) SD Production HD SD Broadcast Production SIPs: Broadcast Broadcast Master Master Master (mxf) Master Master (mov/aiff/ (mxf) (mov/data) (mpeg) m2v) PODS PRO INMAGIC INMAGIC TRACK SIP Class 2: WGBH National SIP Class 4: Religion and Ethics Broadcasts SD SD Broadcast Production Broadcast Production Master Master Master Master (mov/aiff/ (mov) (mov/aiff/ (mov) m2v) m2v) TEAMS Scripts, PODS PODS PRO etc TRACK
  • 20. Thank You! kara.vanmalssen@nyu.edu www.ptvdigitalarchive.org