Noark 5 validator

Summary

Noark 5 extraction format

Noark 5 extraction validator

Demo

Issues with the Noark 5 extraction format

Future steps

N5 extraction

N5 extraction – contd.

N5 extraction – arkivstruktur.xml

N5 extraction – arkivstruktur.xml

N5 extraction – endringslogg.xml

N5 extraction – arkivuttrekk.xml

N5 extraction – arkivuttrekk.xml

Validating N5 extractions

Verify vs Validate

Does validation depend on the system?

Validation tool• Noark 5 v3• 10 validations currently• Plug-in oriented• Extend with new features

Jhove

Pdfinfo

LibTIFF

What to do if there are validation errors?

Validation 1

Validate all XML files against their XSD schemas

Validation 2

Validate checksums and file format of all documents referenced in arkivstruktur.xml

Validation 3

Validate the number of documents referenced in arkivstruktur.xml against the «antallDokumentfiler» value in arkivuttrekk.xml

Validation 4

Validate that the number of documents referenced in arkivstruktur.xml is GTEQ to the actual number of files in the «dokumenter» directory

Validation 5

Validate the number of «mappe» elements in arkivstruktur.xml against the «mappe numberOfOccurrences» value in arkivuttrekk.xml

Validation 6

Validate the number of «registrering» elements in arkivstruktur.xml against the «registrering numberOfOccurrences» value in arkivuttrekk.xml

Validation 7

Validate the checksums of all files (XML and XSD) referenced in arkivuttrekk.xml

Validation 8

Validate the entries in endringslogg.xml against the objects in arkivstruktur.xml

Validation 9

Validate the checksum of arkivuttrekk.xml

Validation 10

Validate the custom metadata in arkivstruktur.xml against a schema (custom_metadata.xsd)

N5 extraction format – issues and possibilities

References to documents

Initial object revisions

DocumentObject does not have a systemID

Can all objects have custom metadata?

Export user registry

Import a Noark 5 extraction

Data quality