When is the implementation of a Product Backlog item considered complete?

The implementation of a Product Backlog item is considered complete when the item has no work remaining to be released. This reflects the Scrum principle that a Product Backlog item is not only about writing code but involves a complete process. The completion of a Product Backlog item includes ensuring that it meets the Definition of Done, which encompasses all necessary criteria such as coding, testing, documentation, and potentially deployment tasks.

This understanding emphasizes that merely writing code or completing certain phases does not qualify an item as complete. The item must be ready for release and integrated into the product. This concept highlights the importance of delivering potentially releasable increments at the end of each Sprint, ensuring that all aspects of quality and functionality are addressed before it can be claimed as complete.