On creation or modification of an epoch, the related contents must be identified and updated
When a new epoch is created or its borders modified, the data contents that concern this epoch must be updated:
- content without an epoch id can be connected to the new (or modified) epoch
- content already related to the epoch may be disconnected due to start/end modification
With the actual data schema, this is not possible, because there is no way to know what is the NSCL of a data content.
Suggestion: add a source identifier as an attribute of the content. It first seemed redundant, but in this scenario, it could help out identify the contents related to a new epoch.