Scope of submission

What is a SIP?

“An Information Package that is delivered by the Producer to the OAIS for use in the construction or update of one or more AIPs and/or the associated Descriptive Information.” — OAIS, 1-15

Shape of SIPs to come

• File
• Folder(-structure)
• ZIP, TAR, etc.
• BagIt Bag
• Digital objects + database entry
• A video tape, film, image, tape, …
• …anything! :D

Mom… Where do SIPs come from?

• Creators
• Digitization vendors
• Staff
• Passionate collectors
• All of the above!
• and more…

How to decide…

what is accepted/required?

• Source (e.g., film, video)
• Agreements with producers
• Internal capabilities
• Metadata only available from producer
• Policies: collection, format
• etc…

What is…?

Ingest activities

Typical ones

• Prepare & record (analogue) source
• Generate unique ID
• Validate or generate fixity/hash data
• Format policy checks
• Format normalization
• Create derivatives
• Create metadata
• Logging
• Virus check
• etc…

The “unique” Identifer

A must-have !

Also known as:

• ID
• Object ID
• Item ID
• Archive signature
• UID, UUID
• …

The “unique” Identifer

Examples

• V-00815
• W/S #00034
• FBW002984
• 38AF2EC1A13494B9DF6FD6E75960307
• 111-ADC-4319
• VHS-0317
• adBDwKf_aSE
• Q83697636
• …

Identifier: Considerations

• Distinguish which type of object/media?
• How many objects to expect (per time/year)?
• Human readable/handleable? (vs as unique as possible)
• Print on stickers on physical objects?
• Print as bar codes?
• How to “ingest” external collections into that schema?
• Does it scale enough?
• Valid for which duration?

Format Normalization

• Popular SIP to AIP use case
• Improve preservation properties
• By switching to a “better” format
• Cleaning/normalizing data (dialects)

Format Normalization

Examples

• Rewrap container (eg MKV, MOV, MXF)
• Audio to PCM
• Convert video to FFV1, V210, H.264, etc

Format Policy Checks

• Define conditions for tech-MD properties
• “whitelist” formats
• Spot irregularities

MediaConch

MediaConch

MediaConch

Possible Bottleneck

“Ingest can be a dangerous bottleneck. Don’t let the perfect be the enemy of the good”

Comments?

Questions?