1. Schema

The word schema is used to refer to any kind of diagram used to represent and clarify the structure of an argumentative phenomenon: Toulmin’s schema, Convergent argumentation schema, etc.
Toulmin “layout of argument” is also known as “Toulmin Schema” or “Toulmin Argument Pattern” (TAP).

2. Argumentation scheme

An argumentation scheme is an abstract or generic representation of a series of concrete argumentations sharing the same structure (scheme).

3. Schematization

Natural Logic uses the term “schematization” to designate the succession of linguistic and cognitive operations through which a reality is given a linguistic expression by a speaker, S. Schematization.