The Eleatic Stranger pursues a different definition than features in Plato's other dialogues by using a model, comparing the model with the target kind, collection, and division ("diairesis") of the collected kinds. At first, he starts using a mundane model (a fisherman), which shares some qualities in common with the target kind (the sophist). This common quality is the certain expertise ("techne") in one subject. Then through the method of collection of different kinds (farming, caring for mortal bodies, for things that are put together or fabricated and imitation), he tries to bring them together into one kind, which he calls "productive art". The same is true with the collection of learning, recognition, commerce, combat and hunting, which can be grouped into the kind of "acquisitive art".