Approches to Argument
Aristotelian Rhetoric
Aristotle's syllogism uses logic (Logos), appeal of emotion (Pathos), and writer's credibility (Ethos) to make two ways of proof--Inductive reasoning and deductive reasoning (Page 10).
Rogerian Argument
Emphasis on understanding of the other's situation and locating a common ground between the writer and the audience, and the result of an argument is usually compromised (page 18).
The Toulmin Model
The Toulmin Model connects three parts of the communication triangle--subject, writer, and audience, to make an argument by creating a movement from support to claim by way of warrant, which acts as a bridge (page 28).