2018.09.12 Community Meeting - OCFL/spec GitHub Wiki

Call-in Details

Community updates / points of discussion?
Review Face-to-Face meeting
- Outcomes
- Dispositioning of Use Cases
- Walkthrough of the specification (Andrew H.)
Review Roadmap (Simeon)
- Alpha
  - October community call we will release (OCFL Editors and PASIG Discuss)
  - Review feedback in the November community call
  - Then determine release date based on the amount of feedback
- Beta
  - Experimental validation tool
  - Determine who else to push this out to
- Release 1.0
  - One production ready validator
  - Test suite and fixture objects
  - Two institutions committed to backing the initiative (should define that)
Review upcoming meetings/presentation proposals (Rosy)
- CNI Fall 2018
- JISC
- PASIG
- Publication
- Others?

Univ of Maryland has implemented fixity checking process
- Interested in whether OCFL represents an opportunity for more efficient/performant processing
- Noted that OCFL is specifically designed to support independent process to act against OCFL content
Notre Dame is particularly interested in:
- Immutable versions
- Permanently remove content - purge
  - OCFL editors' recommendation to delete object, then create a new one
NLM interested in scale and application-independence
- Application code will be required... can the OCFL model be implemented in a scalable way?

Have split out outputs into two documents:
- Specification
- Implementation notes
Will be publishing versioned releases of both documents
- In-progress drafts published under /draft/ version
Basic structure of specification has been defined
- Terminology
- OCFL Object
  - Have established versioning approach to OCFL Objects
  - Noting that digests are primarily used for content addressability
  - OCFL specifically does not require renaming of persisted files
  - Inventory
    - Inventory is a JSON-LD document describing structure and state of an OCFL Object
    - OCFL inventory identifies files via their digest
    - Inventory includes Manifest and Versions blocks
  - Inventory digest: ensures integrity of inventory file
  - Logs directory: location for administrative information related to the OCFL Object
- OCFL Storage Root
Comments on the specfication can be submitted via github issues
- Additionally, there is and OCFL slack channel #ocfl

Goal: have "alpha" version of specification by Oct community call
- Will be looking for community feedback
What is criteria for release 1.0?
- Validator
- Test suite/fixtures
- Two or more committed institutions

CNI
JISC
PASIG
Samvera connect
..also, we plan on publishing an OCFL article
- Noting that one of the reasons Moab has been successful is that it was published