Another form allows participants to drink but uses a medicine which induces unpleasant effects from alcohol. Thus participants self train an avoidance pattern and break the positive feedback loop.
These should not be seen as contrary to the AA abstinance approach. For some people that appears to be the most effective means. For many other people, AA is not.
I suspect as we advance our understanding we'll come to find distinct subdiagnoses in alcoholism and alcohol abuse that suggest different treatment strategies. Right now our understanding feels very rudimentary.