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PBCore, METS,
PREMIS, MODS,                    METSRights...

oh my!
Kara van Malssen
Senior Research Fellow, NYU
Preserving Digital Public Television

AMIA 2008
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
Project Partners
     SIP site

     Repository

                               WNET         WGBH



                                      NYU



                         PBS




                  Library of
                  Congress
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
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
Important   Vocabulary
              •The Repository: NYU
               prototype preservation repository

              • OAIS   : Open Archival
               Information System


  OAIS
              • SIP: Submission Information
               Package
 Terms!

              • AIP : Archival Information
               Package
Applying   standards
 • Normalize disparate metadata
 • XML based
 • One uniform scheme
 • Easier to manage over the long term
 • Rules, vocabularies, schemas help
    maintain consistency
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
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
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
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
PREMIS             : Preservation Metadata Implementation Strategy



                       Intellectual
Object Entity:            Entity

•Creating                                   Rights
application info

•Playback
environment              Object                               Agents
(hardware and
software
                                            Events
Issue of   Redundancy between standards
                METS             PBCore
                                        Title
             Structure                Creator
                                     Description
                       Relationships
                Agents
                         Rights File Format
             Checksums             File Size

                       Hardware
                       Software
                       PREMIS
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
METS                       fileSec
                        amdSec
dmdSec                                           structMap
         techMD   rightsMD sourceMD digiprovMD
                                                 behaviorSec
METS
              amdSec
dmdSec   techMD        rightsMD    fileSec


                                  structMap
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
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
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
Thank You!
kara.vanmalssen@nyu.edu
www.ptvdigitalarchive.org

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

  • 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