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ACTION ITEMS:
From Last Meeting
- Lynette - Update activity streams document to more closely follow the standard.
This Week
- TBD
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Agenda
Meeting Materials
- Activity Streams - Extensions for Authoritative Data Change Management (minimal extensions)
- Mock SPARQL Update Queries for Common Changes (working document)
- Existing Change Management Approaches (working document)
- Types of Changes (working document)
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Recording
Recording: Activity Streams - Activity Types: Moving closer to the standard (2021-08-16)
Notes
Notes were taken directly in the Activity Streams document as comments with general discussions captured here.
Audience
From audience perspective…
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Is there an audience that would prefer a notification only?
Include rdf_patch?
For LC, Stream has just URI and that that entity was updated.
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Doesn’t seem like it would be a big deal to have to do two steps to get each change… 1) read the notification in the activity stream, 2) follow relationship URL to get the rdf_patch
Complete History vs. Recent Notifications
Complete history =
- baseline download + all changes since baseline as they happen
- multiple changes to an entity means the entity appears in the activity stream multiple times
- changes are dated to indicate when the change occurred
- includes patch if available
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- maybe baseline download
- may include all entities that have changed since the baseline was created
- if an entity has changed more than once, it is collapsed into a single notification with the latest change date
- no patch data
Processing…
Need to provide the authoritative patch sequence. If I modified on July 1, and then take a patch on Aug 1, how can I refer to the changes if the changes in the later patch if they were adjusted in a way in the July patch.
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Providing RDF patch could be optional. For authorities that can provide a patch, then we provide a spec for what that would look like. For authorities that do not track low level information, this would be no worse than what they currently have.
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Future Topics
- Notification to a single institution when a requested entity that was missing becomes available. This will likely be outside the main change management stream.
- Value of diagraming to express changes as a means of conveying information around where data is being produced, where it goes, etc.
- Partial splits and partial merges.
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