Albert Korzybski wrote about the ideas of maps and territories in mathematical semantics in his early 20th century paper. There have since been many versions of ideas like this. Similarly, this principle a loose interpretation of the idea that a system could be represented as a Category in Category Theory. In Category Theory, a functor is the morphism of one category to another, and thus leads to the idea that a well-structured architecture should behave like a category and be “functorizable”.