This post is a continuation of Unclean architecture. Clean architecture From what I understand of Clean architecture it’s an iteration of Hexagonal architecture also known as Ports and Adapters (see the Wikipedia page). Clean architecture use of OO and code dependency OO is the ability, through the use of polymorphism, to gain absolute control over every source code dependency in the system. It allows the architect to create a plugin architecture, in which modules that contain high-level policies ar[...]