The process of having two people or groups play opposing roles in a debate to better understand a proposal is called The dialectic method.
The dialectic method is a conversation or discuss between two or more people having different opinion about a point with a view to establishing the truth.
Dialectic method involves reasoning that compares and contrasts opposing points of view in order to arrive at a new agreed point of view.
Hence, the process of having two people or groups play opposing roles in a debate to better understand a proposal is known as the dialectic method.
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