PREMIS in METS in Archivematica

Sarah Romkey, Artefactual SystemsPREMIS Implementation FairiPRES 2016

Archivematica in brief● Archivematica is a digital preservation system which

bundles together many open-source tools, and handshakes with others

● Archivematica is not a repository or a place to store digital objects

● But it is a place to process and package digital objects and collect technical/rights metadata (in PREMIS, of course!)

● Archivematica creates AIPs and DIPs and stores metadata in a PREMIS in METS file in the AIP and DIP.

● Archivematica is free and open-source.

“The METS file is the AIP.”- Marco Klindt, Zuse Institute Berlin, speaking at the recent Archivematica Camp

PREMIS events in Archivematica

● Ingestion● Message digest calculation● Fixity check● Name cleanup● Unpacking● Virus scan● Format identification● Validation● Normalization● Compression

PREMIS agents in Archivematica

● Institution

● Logged-in user

● Digital preservation system

● Soon: external agents (more later)

PREMIS in METS<dmdSec> (descriptive metadata)<amdSec> (administrative metadata) <techMD> PREMIS: object <digiProvMD> PREMIS: events PREMIS: agents <rightsMD> PREMIS:rights<fileSec> (a list of the files and their roles and relationships)<structMap> (a representation of the physical structure of the objects)

Development in Archivematica

● Institutions propose development projects (usually to Artefactual Systems)

● New features are rolled into the software when released.● Most new features include at least a consideration of

how it will impact the PREMIS and/or METS

Example 1: AIP re-ingest

● To be released in Archivematica 1.6 (some implementation in 1.5)

● Ability to take an AIP in archival storage and send it back to Archivematica to re-do preservation tasks

● PREMIS and METS is versioned to reflect the re-ingestion event as well as any updated tool output.

Example 2: New tool integration

● In an upcoming version of Archivematica, we’ll be integrating MediaConch as a validation tool.

● New tools mean new tool output, which means new PREMIS!

● MediaConch will facilitate two kinds of validation events:○ Validation of the files against the file specification

○ Validation against a local policy

Example 3: Dataverse as an agent

● We developed a proof of concept integration with the research data tool Dataverse

● Dataverse creates derivative files out of certain file types for purposes of analysis and display. The study can then be exported as a zipped package, which can be ingested into Archivematica

● We wanted to reflect the fact that some of the files were created by Dataverse as a software agent.

Example 4: Improving A/V handling

● Currently, Archivematica models objects down to the level of the file.

● With the introduction of MediaConch, we’re interested in modeling down to bitstreams to show the different tracks/stream within an a/v file.