Dramaturgy and Rhetorics

Dramaturgy is used in many text types. What I am comparing at the moment is how according to ancient and modern Rhetoric a set of similar structuring premises and their balanced use are the conditions for a good public speech. It usually follows (in Latin) a very clear and deliniated pattern:
1. Exordium
2. Narratio
3. Propositio
4. Argumentatio
5. Conclusio