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Archivematica and Local Authority Archive Services

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Presentation accompanying demonstration of Archivematica to EERAC (East of England Regional Archives Council) members introducing OAIS (Open Archival Information System) methodology. Identifies common operations for both: transfer and ingest of digitally born archives into digital repository and accessioning paper-based archives. How digital preservation relates to and fits within traditional archival processing.

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Archivematica and Local Authority Archive Services

  1. 1. What is Archivematica? • Web-based application accessible through a browser (Chrome) • Built out of many open source tools (micro processes) that together provide a comprehensive digital preservation platform • Commonly referred to as Pipeline – processing transfers and ingesting digital material into the storage system • Runs on Linux and can be deployed to multiple server clients containing Archivematica’s software components
  2. 2. What it is not? •It’s not a storage system •It’s not an access system However it is a Pipeline connecting them and can optimise digital objects for access
  3. 3. “Ingest accounts for 90% of digital repository activity” Adrian Brown, Director, Parliamentary Archives
  4. 4. Why Archivematica? • It’s Open Source • Compliance with OAIS (Open Archival Information System) • Uses METS, PREMIS and Dublin Core metadata • Library of Congress BagIt specification for archival package • Uses The National Archives PRONOM file formats registry • Under active development and with strong user community https://groups.google.com/forum/#!forum/archivematica
  5. 5. Digital Object Paper-based Refers to OAIS model function Transfer Accession Delivery of the deposit, entry in accessioning register, does it need to be quarantined? Ingest Appraisal Appraisal Arrangement and establishing intellectual control Data Management Preservation Does it need to be sent to Conservation? Assessing physical condition. Preservation Planning Ingest Finalising the accession, Boxing Up and transferring the material into the store Administration (Ingest) Archival Storage Assigning Catalogue Reference and Location Archival Storage Access Cataloguing and creating finding aids Access
  6. 6. 6 Main Functions of OAIS Ingest, Archival Storage, Data Management, Preservation Planning, Access, Administration
  7. 7. Are reflected in Archivematica dashboard Transfer Ingest Archival Storage Preservation Planning Access Administration DataManagement function is moved to the front of the processing – It is an appraisal/arrangement stage before Ingest.
  8. 8. DEPOSIT WHAT’S IN THE WHAT’S ON THE ACCESSION STRONG ROOM WEBSITE/SEARCH ROOM PRESERVATION COPY ACCESS COPY SIP Submission Information Package AIP Archival Information Package DIP Dissemination Information Package PRESERVATION COPY DIGITAL SURROGATE MASTER FILE ACCESS COPY DIGITAL DERIVATIVE ACCESS FILE
  9. 9. Archivematica (AIP) Archival Information Package with BagIt structure Dublin Core and PREMIS metadata embedded within METS.xml Checksums Content Data Object: thedigital object/s to bepreserved; Representation Information: informs rendering and understanding of thedigital object/s (text encoding standard ASCII, UTF8, Unicode; softwareneeded to open it etc.) Reference:any referencesystemapplied (ISBN, DOI); Provenance: historyof thecustody, storage, handling and migrationthroughout thedigitalobject/s lifecycle; Context:the purposefor thecreation of therecord (why in this particular format and in what environment/OS); Fixity: checksum, digitaldigest/fingerprint
  10. 10. Format Policy Registry Tools Some tools used by Archivematicafor Identification, Characterisation, Event Detail, Extraction, Normalisation, Transcription, Validation and Verification of packages: - ClamAV http://www.clamav.net/ Virus scan for quarantine - ImageMagick® http://www.imagemagick.org/ Raster Image Files normalisation/conversion - FITS (File Information ToolSet) http://projects.iq.harvard.edu/fits Metadata extraction - GNU Operating System http://www.gnu.org/software/coreutils/coreutils.html - FFmpeg http://ffmpeg.org/ Audio and Video normalisation/encoding - Ghostscript http://www.ghostscript.com/ Text to PDF normalisation - Inkscapehttps://inkscape.org/en/Vector Graphics normalisation - ps2pdf https://www.ps2pdf.com/ PostScript to PDF converter - 7zip http://www.7-zip.org/ File compression - Unrar-freehttps://launchpad.net/ubuntu/+source/unrar-freeFile compression - JHOVE http://jhove.openpreservation.org/ File Identification - FFprobe https://www.ffmpeg.org/ffprobe.htmlTechnical metadata extraction - ExifTool http://www.sno.phy.queensu.ca/~phil/exiftool/ Technicalmetadata extraction - Mediainfo http://mediaarea.net/en/MediaInfo Technicalmetadata extraction - Tesseract https://github.com/tesseract-ocrOptical character recognition/transcript - The Sleuth Kit® http://www.sleuthkit.org/ Diskimages analysis - Bulk Extractor http://digitalcorpora.org/archives/324 Data redaction

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