the side that advocates change through the adoption of the resolution. The Affirmative must present a reasonable interpretation of the resolution through an adequate definition of terms and/or operationally define the resolution in the Aff. plan. The affirmative must overcome the presumption for the status quo with a prima facie case.
The team that is trying to support or prove the resolution true is the affirmative. The affirmative usually supports the resolution through a case that includes a plan of action.
In policy debate, the affirmative (AFF) is the team which affirms the resolution.