Ensure that you are familiar with project areas, configuration spaces, baselines, streams, and change sets, which are described in Management of shared resources.
In a serial development environment, you share one stream with other team members.
In a parallel development environment, you and your team members might have individual streams whose contents are derived from a common stream. To make changes in your stream visible to other team members, you deliver your changes to the common stream, which is also called a flow target. Then, from the common stream, your team members can accept those changes into their own streams to ensure that they have the most recent versions of artifacts.