Final answer:
A backlog item is considered done if it meets the team's and product owner's negotiated definition of done.
Step-by-step explanation:
In a Scrum team, a backlog item is considered done when it meets the team's and product owner's negotiated definition of done.
The definition of done is a set of criteria or standards that the team agrees upon at the beginning of the project. It specifies the conditions that must be met for a backlog item to be considered done.
For example, the definition of done might include criteria such as code review, automated testing, documentation, and user acceptance testing.