Toulmin model of argumentation

Stephen Toulmin was a British philosopher and professor, born in 1922 and died in 2009.

He is known for his model of argumentation, which he originally described in The Uses of Argument from 1958.

Toulmin's model is about how the good argument is structured. With the model, you can examine an argumentation and identify point of views and reasons for point of views - and see how the argumentation is structured.

The function of the argumentative element is thus to present various reasons for the claim made.