When you create your reports in Visual Studio, you have multiple solution configurations available.
-- Debug Local -- Allows for debugging against your local machine
-- Debug -- Allows for debugging and deploying into a test environment.
-- Production -- Allows for deploying to a production environment.
This configuration allows for youi to use multiple staging areas for your reports.
For more Information: http://msdn.microsoft.com/library/en-us/rshowto/htm/hrs_designer_v1_91gz.asp?frame=true