Adam Retter

adam@evolvedbinary.com
 

Project OMEGA
The National Archives @ Online
2021-04-07

@adamretter

• Levels

• The Record vs. Records's Arrangement

• Inheritance

• Tree vs. Graph

• Denormalisation

  • Versioning / Provenance

• TNA-CS13 / ISAD(G) has "Levels"

  • ... of Arrangement???

• 7 Levels in Use at TNA (for physical records)

  1. Department

  2. Division (optional)

  3. Series

  4. Sub-series (optional)

  5. Sub-sub-series (optional)

  6. Piece

  7. Item (optional*)

• What is a Record?

• Is an Item a Record?

• Is a Piece a Record?

  • Is a Piece a Record when it has Item(s), or is it then a unit of Arrangement?

• What about:

  • Sub-sub-series?

  • Sub-series?

  • Series?

  • Division?

  • Department?

• ICA RiC says: RecordSet, Record, and RecordPart

• Some (Meta)Data Elements are inherited downwards

  • Specification - in TNA-CS13

  • Implementation - Normalisation in ILDB

• e.g. Immediate Source of Acquisition (ISoA)

  • May be expressed at levels: Department, Division, Series, Sub-series, Sub-subseries, Piece

  • Presentation: Start at level n, work upwards (n-1) until an entry for a level is found.

  • Example, Item: AIR 28 2904/1

    • Department ISoA: "from 1960"

    • Series ISoA: ", from 1974"

    • NOTE: for presentation/understanding, Series level is used as it is the lowest-level
      (i.e. closest to the Item)

• Are these properties about the Record or the Record Set?