Sometimes given the technology or interface, its necessary to tell the next poor soul what is going on. Anyone who has wrote code to interface with an external

Sometimes given the technology or interface, its necessary to tell the next poor soul what is going on. Anyone who has wrote code to interface with an external system knows the story of odd interaction requirements that need to be document for the person who is maintaining the code at the point of use. Also, sometimes given teams and other requirements, a bit of an unusual use of the programming language can be explained away by a bit of ASCII art. Giving a programmer a mental model of the upcoming code can help with on-boarding new people.