NDSA Levels of Preservation Flashcards Preview

Digital Preservation > NDSA Levels of Preservation > Flashcards

Flashcards in NDSA Levels of Preservation Deck (26)
Loading flashcards...
1
What is...

NDSA

National Digital Stewardship Alliance is a consortium of organizations (212, including, Digital Public Library of America, Yale University Library, and New York Public Library (NYPL)) committed to the long-term preservation of digital information.

2
What are...

Levels of Preservation

NDSA Levels of Preservation (LOP), a rubric that can provide guidance for institutions that want to do digital preservation, or are doing digital preservation. The rubric sets out a minimal set of standards an insitution can aim for and progressions that they can then seek to achieve. Levels of Preservaiton is an understandable and pragmatic guide for folks in the industry.

3
What is...

Levels of Preservation, Level 1

Protect your data

4
What is...

Levels of Preservation, Level 2

Know your data

5
What is...

Levels of Preservation, Level 3

Monitor your data

6
What is...

Levels of Preservation, Level 4

Repair your data

7
What is...

Level 1: Storage and Geographic Location

  • Two complete copies that are not collocated.

  • For data on heterogeneous media (optical disks, hard drives, etc.) get the content off the medium and into your storage system.

8
What is...

Level 2: Storage and Geographic Location

  • At least three complete copies.

  • At least one copy in a different geographic location

  • Document your storage system(s) and storage media and what you need to use them.

9
What is...

Level 3: Storage and Geographic Location

  • A least one copy in a geographic location with a different disaster threat.

  • Obsolescence monitoring process for your storage system(s) and media.

10
What is...

Level 4: Storage and Geographic Location

  • At least three copies in geographic locations with different disaster threats.

  • Have a comprehensive plan in place that will keep files and metadata on currently accessible media or systems.

11
What is...

Level 1: File Fixity and Data Integrity

  • Check file fixity on ingest if it has been provided with the content.

  • Create fixity info if it wasn't provided with the content.

12
What is...

Level 2: File Fixity and Data Integrity

  • Check fixity on all ingests.

  • Use write blockers when working with original media.

  • Virus-check high risk content.

13
What is...

Level 3: File Fixity and Data Integrity

  • Check fixity of content at fixed intervals.

  • Maintain logs of fixity info; supply audit on demand.

  • Ability to detect corrupt data.

  • Virus-check all content.

14
What is...

Level 4: File Fixity and Data Integrity

  • Check fixity of all content in response to specific events or activities.

  • Ability to replace/repair corrupted data.

  • Ensure no one person has write access to all copies.

15
What is...

Level 1: Information Security

  • Identify who has read, write, move, and delete authorization to individual files.

  • Restrict who has those authorizations to individual files.

16
What is...

Level 2: Information Security

Document access restrictions for content.

17
What is...

Level 3: Information Security

Maintain logs of who performed what actions on files, including deletions and preservation actions.

18
What is...

Level 4: Information Security

Perform audit logs.

19
What is...

Level 1: Metadata

  • Inventory of content and its storage locations.

  • Ensure backup and non-collocation of inventory.

20
What is...

Level 2: Metadata

  • Store administrative metadata.

  • Store transformative metadata and log events.

21
What is...

Level 3: Metadata

Store standard technical and descriptive metadata.

22
What is...

Level 4: Metadata

Store standard preservation metadata.

23
What is...

Level 1: File Formats

When you can give input into the creation of digital files encourage use of a limited set of known open formats and codecs.

24
What is...

Level 2: File Formats

Inventory of file formats in use.

25
What is...

Level 3: File Formats

Monitor file format obsolescence issues.

26
What is...

Level 4: File Formats

Perform format migrations, emulation and similar activities as needed.