A development stream isolates your development activities from the rest of the team. (When you are ready to make activities available to the project team, you deliver them to the parent stream of the development stream.) Usually, in a multiple stream project, each developer creates a single development stream.
The wizard gives your development stream a default name based on your user ID and the project name and uses the following convention: userID_project. If you already created development streams for this project, the wizard appends a number after the stream name: userID_project_number.
You can enter your own name for the stream. If you change the name, make sure it reflects the stream owner, purpose, and associated project.
If you have any streams defined in the selected project, the wizard lists the stream names in an information window. To use an existing stream, note the stream name and click OK. In the window, click Advanced Options.