喺範疇論入面，交換圖係用嚟表示唔同嘅物件、態射同埋佢哋嘅性質（例如萬有性質）嘅工具，通常用頂點嚟代表物件，箭嘴代表態射。
In category theory, an exchange image is a tool used to represent different objects, morphisms, and their properties (e.g., the properties of everything), usually with vertices for objects and arrows for morphism.