The items selected from the Product Backlog are frozen in the Sprint Backlog we dont change
them. However, we also have the tasks created by breaking down the items, and the tasks are
always changing. Only the Developers can make changes to the Sprint Backlog (that is, changes
to the tasks, rather than the items).
Only tasks required for the first few days of the Sprint are created in the Sprint Planning meeting
the rest will be created during the Sprint, whenever developers identify new work, or when its time
to work on a new item and they need to understand its scope.
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