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METS_Validation.md

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BAroQUe METS File Validation

Validate METS XML

This step validates the METS XML for each item. This includes validating that various sections of the METS XML exist, including the metsHdr, amdSec, dmdSec, fileSec, structMap. Various conditions are also checked within each section, including confirming that descriptive metadata matches what was supplied in the metadata export and that files listed in the file section and structural map match what is found in the item's directory.

Module used: mets_validation.py

BAroQUe performs the following checks on each METS XML file:

  • XML must be valid.
  • XML tag must have "mets:mets" tag.
  • "mets:mets" tag must have "xmlns:mets" attribute and value must be "http://www.loc.gov/METS/."
  • "mets:mets" tag must have "xmlns:aes" attribute and value must be "http://www.aes.org/audioObject."
  • "mets:mets" tag must have "xmlns:ph" attribute and value must be "http://www.aes.org/processhistory."
  • "mets:mets" tag must have "xmlns:dc" attribute and value must be "http://purl.org/dc/elements/1.1/."
  • "mets:mets" tag must have "xmlns:mods" attribute and value must be "http://www.loc.gov/mods/v3."
  • "mets:mets" tag must have "OBJID" attribute.
  • "OBJID" attribute value must follow Collection Number-(SR-)Item Number convention.
  • "mets:mets" tag must have "TYPE" attribute.
  • "TYPE" attribute must have "AUDIO RECORDING," "VIDEO RECORDING" or "FILM RECORDING" value as appropriate..
  • "mets:mets" tag must have "mets:metsHdr" tag.
  • "mets:mets" tag must have "mets:dmdSec" tag.
  • "mets:mets" tag must have "mets:amdSec" tag.
  • "mets:mets" tag must have "mets:fileSec" tag.
  • "mets:mets" tag must have "mets:structMap" tag.
  • "mets:metsHdr" tag must have "CREATEDATE" attribute.
  • "mets:metsHdr" tag must have three "mets:agent" tags.
  • This "mets:agent" tag must have "mets:name" tag.
  • One "mets:agent" tag must have "ROLE" attribute with "PRESERVATION" value and "TYPE" attribute with "ORGANIZATION" value.
  • This "mets:agent" tag must have "mets:name" tag with "University of Michigan, Bentley Historical Library" value.
  • One "mets:agent" tag must have "ROLE" attribute with "DISSEMINATOR" value and "TYPE" attribute with "ORGANIZATION" value.
  • This "mets:agent" tag must have "mets:name" tag with "University of Michigan, Bentley Historical Library" value.
  • "mets:dmdSec" tag must have "mets:mdWrap" tag.
  • "mets:mdWrap" tag must have "MDTYPE" attribute with "DC" value and "LABEL" attribute with "Dublin Core Metadata" value.
  • "mets:mdWrap" tag must "mets:xmlData" tag.
  • "mets:xmlData" tag must have "dc:title" tag.
  • "dc:title" tag value must match CSV "title" value. -- 2nd pass
  • "dc:date": At least check if it's there (do additional analysis to see what it would take to see if it matches) Essentially three types of errors discovered and accounted for): undated/Undated, MM/DD/YYYY to YYYY Month DD, MM/DD/YYYY to Month DD, YYYY
  • "dc.format" should be present
  • There should be at least one "dc.format.extent"
  • For each version of each audio, film or video intellectual unit, "mets:amdSec" tag must have "mets:techMD" tag.
  • "mets:amdSec" tag must have "mets:sourceMD" tag.
  • "mets:amdSec" tag must have "mets:digiprovMD" tag.
  • "mets:fileSec" tag must have two "mets:fileGrp" tags.
  • One "mets:fileGrp" tag must have an "ID" attribute with "audio-files," "video-files" or "film-files" value, as appropriate.
  • One "mets:fileGrp" tag must have an "ID" attribute with "media_images" value.
  • "mets:fileGrp" tag with an "ID" attribute and an "audio-files" value must have three "mets:fileGrp" tags.
  • "mets:structMap" tag must have "mets:div" tag.
  • "mets:div" tag must have one, but may have more than one "mets:div" tag, as appropriate.
  • "mets:div" tag must have more than one "mets:fptr" tags (three for audio, two for film and video)