Alternate target streams
All streams in the same project can deliver activities to streams other than the default target. Such alternate target streams are restricted by the foundation baselines in the source stream and the target stream.
A policy in the project controls whether streams can control access. Policies in the streams control stream access. A stream cannot be the target of a deliver operation if the project or stream policy prohibits access. One policy determines whether a stream can accept activities in a deliver operation from a stream in a different project.