Can a stream in DOORS-NG be made read-only
Accepted answer
You can't set permissions on a stream-by-stream basis; they apply to all streams.
You can create a baseline of the stream, which of course would be read-only. That wouldn't affect the stream itself.
Assuming you are using configuration management, you could mandate that the stream requires change sets linked to an approved work item for delivery. That would minimize users changing artifacts in the stream accidentally. You can restrict users' ability to create and deliver change sets as well, but that applies to all streams, so might not be appropriate.
Hope that helps.