Difference between revisions of "Metadata elements"

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[[Main Page]] > [[Development]] > [[:Category:Development documentation|Development documentation]] > Metadata elements
 
[[Main Page]] > [[Development]] > [[:Category:Development documentation|Development documentation]] > Metadata elements
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<div style="padding: 10px 10px; border: 1px solid black; background-color: #F79086;">This page is no longer being maintained and may contain inaccurate information. Please see the [https://www.archivematica.org/docs/latest/ Archivematica documentation] for up-to-date information. </div> <p>
  
 
This page identifies a minimum set of metadata elements designed to ensure authenticity and interoperability of preserved objects and to facilitate their retrieval.
 
This page identifies a minimum set of metadata elements designed to ensure authenticity and interoperability of preserved objects and to facilitate their retrieval.
  
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This process involves:
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*[[METS]]
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*[[PREMIS]]
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# Using the InterPARES Chain of Preservation (COP) model and the CoP/PREMIS crosswalk to identify required elements for objects preserved by Archivematica
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*[[PREMIS metadata: original files]]
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# Analyzing existing metadata in the Archivematica AIP log files and METS.xml file in order to map them to METS and PREMIS elements
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*[[PREMIS metadata: normalized files]]
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# Comparing 1) to 2) in order to determine what gaps exist in Archivematica
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*[[PREMIS metadata: events]]
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# Filling in the gaps - eg by modifying workflow to produce and/or capture missing elements
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*[[PREMIS metadata: rights - 0.10]]
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# Structuring the required elements into the [http://wiki.fcla.edu:8000/TIPR/21 Repository eXchange Package (RXP) specification]
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*[[PREMIS/METS for scalability]]
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# Determining what metadata belongs in the DIP(s)
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*[[RDF/OWL]]
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==Map of Archivematica 0.6 metadata to PREMIS elements==
 
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{| border="1" cellpadding="10" cellspacing="0" width=90%
 
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| colspan="6" style="background-color:silver;"|'''Source: /data/logs/MD5checksum.txt'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced when quarantine period expires. Provides checksums for each object in the SIP. Note that if zipped files are present, a checksum is generated for the zipped file and not for each object within it.'''
 
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|-
 
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!style="width:20%"|Description
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
−
|-
 
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|Checksum
 
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|Object
 
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|1.5.2 Fixity
 
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|1.5.2.2 messageDigest
 
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|326e0206ae83f815e4be5f28464f6ac6
 
−
|-
 
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| colspan="6" style="background-color:silver;"|'''Source: /data/logs/filenameCleanup.log'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced when quarantine period expires, prior to unpacking of any zipped files. If prohibited characters were present in filenames, provides crosswalk between original and "cleaned up" filenames.'''
 
−
|-
 
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!style="width:20%"|Description
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
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|-
 
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|Original filename
 
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|Object
 
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|1.6 originalName
 
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|none
 
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|Syllabus final.doc
 
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|-
 
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|Cleaned-up filename
 
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|Event
 
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|2.5.2 eventOutcomeDetail
 
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|2.5.2.1 eventOutcomeDetailNote
 
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|Syllabus_final.doc
 
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|-
 
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|colspan="6" style="background-color:silver;"|'''Source: /data/logs/fileUUIDs.log'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced after prohibited characters are removed from filenames and any zipped files have been unpacked. Provides a crosswalk between cleaned-up filenames and UUIDs.'''
 
−
|-
 
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!style="width:20%"|Description
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
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|-
 
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|Universal unique identifier (UUID)
 
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|Object
 
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|1.1 objectIdentifier
 
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|1.1.2 objectIdentifierValue
 
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|270bd067-0483-4c5f-bdec-f2cbd6e651aa
 
−
|-
 
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| colspan="6" style="background-color:silver;"|'''Source: /data/logs/FITS-[UUID]-[SIP].xml (FITS output reports)'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced when FITS tool identifies and validates formats and extracts technical metadata
 
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|-
 
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!style="width:20%"|FITS element
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
−
|-
 
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|format
 
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|Object
 
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|1.5.4.1 formatDesignation
 
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|1.5.4.1.1 formatName
 
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|
 
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*Tagged Image File Format
 
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*Waveform Audio
 
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*Microsoft Powerpoint Presentation
 
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|-
 
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|version
 
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|Object
 
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|1.5.4.1 formatDesignation
 
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|1.5.4.1.2 formatVersion
 
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|6.0
 
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|-
 
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|externalIdentifier
 
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|Object
 
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|1.5.4.2 formatRegistry
 
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|1.5.4.2.2 formatRegistryKey
 
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|fmt/10
 
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|-
 
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|Size
 
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|Object
 
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|1.5 objectCharacteristics
 
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|1.5.3 size
 
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|125968
 
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|-
 
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|ImageWidth
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|2464
 
−
|-
 
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|ImageHeight
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|3248
 
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|-
 
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|SamplesPerPixel
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|3
 
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|-
 
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|XResolution
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|300
 
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|-
 
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|YResolution
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|300
 
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|-
 
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|duration
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|0:2:26:16
 
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|-
 
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|bitDepth/bitsPerSample
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|16
 
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|-
 
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|sampleRate
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|48000.0
 
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|-
 
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|channels
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|2
 
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|-
 
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|aes:channelAssignment
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|
 
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*channelNum="0" mapLocation="LEFT"
 
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*channelNum="1" mapLocation="RIGHT"
 
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|-
 
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|VideoFrameRate
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|
 
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*30.0
 
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*29.97 fps
 
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|-
 
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|AspectRatio
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|1:1
 
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|-
 
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|PageCount
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|16
 
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|-
 
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|WordCount
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|876
 
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|-
 
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|Paragraphs
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|19
 
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|-
 
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|Slides
 
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|Object
 
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|1.4 significantProperties
 
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|1.4.2 significantPropertiesValue
 
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|27
 
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|-
 
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| colspan="6" style="background-color:silver;"|'''Source: /data/logs/normalization.log'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced during normalization to preservation and access formats'''
 
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|-
 
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!style="width:20%"|Description
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
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|-
 
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|Name of normalization tool
 
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|Agent
 
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|3.2 agentName
 
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|none
 
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|FFmpeg version SVN-r19352-4:0.5+svn20090706-2ubuntu2.2
 
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|-
 
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|Event description
 
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|Event
 
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|2.2 eventType
 
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|none
 
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|Normalizing
 
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|-
 
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|Processing status
 
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|Event
 
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|2.5 eventOutcomeInformation
 
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|2.5.1 eventOutcome
 
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|Processing completed
 
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|-
 
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|Normalization result
 
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|Event
 
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|2.5.2 eventOutcomeDetail
 
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|2.5.2.1 eventOutcomeDetailNote
 
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|
 
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*Already in preservation format. No need to normalize.
 
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*No default normalization tool defined.
 
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*Output #0, wav, to '/tmp/MultimediaSIP-9ece5881-640e-4bdc-9863-4ff50046a0bd/objects/sample.wav': Stream #0.0: Audio: pcm_s16le, 8000 Hz, stereo, s16, 256 kb/s
 
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|-
 
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|colspan="6" style="background-color:silver;"|'''Source: /data/logs/MD5checksum.txtprepareAIP_check.log'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced after file normalization process. Checks that checksums for files in the SIP have not changed during normalization.'''
 
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|-
 
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!style="width:20%"|Description
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
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|-
 
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|Pass/fail notification
 
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|Event
 
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|2.5 eventOutcomeInformation
 
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|2.5.1 eventOutcome
 
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|
 
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*PASSED
 
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*FAILED
 
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|-
 
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| colspan="6" style="background-color:silver;"|'''Source: /data/logs/AIP.MD5checksum.txt'''
 
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|-
 
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|colspan="6" style="background-color:#E0FFFF;"|'''Process: Produced during BagIt process. Provides checksums for the AIP and for each original and normalized file in the AIP.'''
 
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|-
 
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!style="width:20%"|Description
 
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!style="width:15%"|PREMIS entity
 
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!style="width:15%"|PREMIS semantic unit
 
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!style="width:15%"|PREMIS semantic component
 
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!style="width:35%"|Sample value(s)
 
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|-
 
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|AIP checksum
 
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|Object
 
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|1.5.2 Fixity
 
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|1.5.2.2 messageDigest
 
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|12b86e038bf0bddd5aba110c35f288b8
 
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|-
 
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|File checksum
 
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|Object
 
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|1.5.2 Fixity
 
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|1.5.2.2 messageDigest
 
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|326e0206ae83f815e4be5f28464f6ac6
 
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|-
 
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|}
 
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<br>
 
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==Mandatory PREMIS elements (mandatory semantic units + components)==
 
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{| border="1" cellpadding="10" cellspacing="0" width=90%
 
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|-
 
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|- style="background-color:#cccccc;"
 
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!style="width:10%"|'''Entity'''
 
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!style="width:20%"|'''Semantic unit'''
 
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!style="width:20%"|'''Semantic component'''
 
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!style="width:20%"|'''Present in Archivematica?'''
 
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|-
 
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|Object
 
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|1.1 objectIdentifier
 
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|1.1.1 objectIdentifierType
 
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|No
 
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|-
 
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|Object
 
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|1.1 objectIdentifier
 
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|1.1.2 objectIdentifierValue
 
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|Yes
 
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|-
 
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|Object
 
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|1.2 objectCategory
 
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|none
 
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|No
 
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|-
 
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|Object
 
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|1.5 objectCharacteristics
 
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|1.5.1 Composition level
 
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|No
 
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|-
 
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|Object
 
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|1.5.4 objectCharacteristics/format
 
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|Either 1.5.4.1 formatDesignation or 1.5.4.2 formatRegistry must be used
 
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|
 
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*1.5.4.1.1 formatName Yes
 
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*1.5.4.2.1 formatRegistryName No
 
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*1.5.4.2.2 formatRegistryKey Yes
 
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|-
 
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|Object
 
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|1.7 Storage
 
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|Either 1.7.1 contentLocation or 1.7.2 storageMedium must be used. However, "if the preservation repository uses the objectIdentifier as a handle for retrieving data, contentLocation is implicit and does not need to be recorded."
 
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|No, but retrieval may be managed through UUIDs.
 
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|-
 
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||Event
 
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|2.1 eventIdentifer
 
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|2.1.1 eventIdentifierType
 
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|No
 
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|-
 
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|Event
 
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|2.1 eventIdentifer
 
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|2.1.2 eventIdentifierValue
 
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|No
 
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|-
 
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|Event
 
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|2.2 eventType
 
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|none
 
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|Partial
 
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|-
 
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|Event
 
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|2.3 eventDateTime
 
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|none
 
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|Partial
 
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|-
 
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|}
 
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<br>
 
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==Mandatory PREMIS elements (optional semantic units + mandatory components)==
 
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Some semantic units in PREMIS are optional, but if they are included they have mandatory elements. This table lists optional semantic units that are present in Archivematica in order to determine whether the mandatory elements are included.
 
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{| border="1" cellpadding="10" cellspacing="0" width=90%
 
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|-
 
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|- style="background-color:#cccccc;"
 
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!style="width:10%"|'''Entity'''
 
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!style="width:20%"|'''Semantic unit'''
 
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!style="width:20%"|'''Semantic component'''
 
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!style="width:20%"|'''Present in Archivematica?'''
 
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|-
 
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|Object
 
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|1.5.2 ObjectCharacteristics/fixity
 
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|1.5.2.1 messageDigestAlgorithm
 
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|No
 
−
|-
 
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|Object
 
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|1.5.2 ObjectCharacteristics/fixity
 
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|1.5.2.2 messageDigest
 
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|Yes
 
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|-
 
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|
 
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|
 
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|
 
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|
 
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|-
 
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|
 
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[[Category:Development documentation]]
 
[[Category:Development documentation]]

Latest revision as of 15:34, 11 February 2020

Main Page > Development > Development documentation > Metadata elements

This page is no longer being maintained and may contain inaccurate information. Please see the Archivematica documentation for up-to-date information.

This page identifies a minimum set of metadata elements designed to ensure authenticity and interoperability of preserved objects and to facilitate their retrieval.

Retrieved from "https://wiki.archivematica.org/index.php?title=Metadata_elements&oldid=13315"