Sharing changes by a deliver operation
If you integrate changes in a sibling stream (rather than in a parent stream, you can use an alternate target deliver operation to share changes between sibling streams. For example, if you deliver activities b1, b2, and b3 in stream D2 to stream D1, you must also deliver activities in baselines in PA.BL1 and merge the changes with the versions in activities a1, a2, and a3. This complex deliver operation can be simplified by using a rebase operation before the alternate target deliver operation.
All of the integrated changes are migrated to the parent stream (the project integration stream) when you deliver your work from stream D1.