Or a tool used in various different kinds of arguments?
Or an equivalence class of arguments that use comparisons and similarities?
I refer to :
Bartha, P. (2013). Analogy and Analogical Reasoning. Stanford Encyclopedia of Philosophy. E. N. Zalta. Stanford, Stanford University: 1 - 69. URL = http://plato.stanford.edu/archives/fall2013/entries/reasoning-analogy