Communication is the basic element and operation of social systems. It consists of the unity of the difference among three selections: utterance (*Mitteilung*), information, and understanding (*Verstehen*) of the difference between utterance and information.
* a diagram of the data on a Blackboard, then one can also store that data in a Graph Database.
DOT FROM lambda-browsing
A boundary separates a system from its environment or from its sub and supra systems.
The algorithm for drawing the Outline of a Shape is as follows:
By traversing Up_to_Down, from two ConnexioNs in a defined order, the existence or non-existence of the ordered relation between the two is verified.