## Delta Changes design

### Current

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#### Example data package


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#### Bagit-Tree representation


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### Differential Versioning

- Instead of creating entirely new data packages for each version, implement a differential versioning system. This system would only store the changes made between versions, rather than duplicating all files.
- Each version would be a set of "deltas" or changes from the previous version. This approach significantly reduces storage requirements and indexing complexity.

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### Use Cases

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#### UC01: Replacing file in a data package


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##### Compare


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#### UC02: Editing metadata


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##### Compare


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##### Observations

- First version ORE
- Metadata changes - reindex all documents relations
- two way pointers
- Inefficient for n/2 replacements

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