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German philosopher Viehweg argues that decision-making in law is not based on deducing conclusions from a predetermined system, but rather on a rational argumentative process. This process involves both primary and secondary argumentation: primary argumentation sets the premises for the decision, while secondary argumentation logically infers the conclusion. The focus should be on the process of reasoning, not just the conclusion itself. Viehweg also emphasizes the importance of dialogue and reciprocity in argumentation, drawing parallels with retoric. He suggests that retoric can provide a framework for understanding the rules and obligations that participants in an argument must follow to ensure that their discussion and results are rational and recognized as such.