Noun
A diagram that illustrates distilled structure of information boundaries/containers, separations, flows, actions, and interactions between locations, such as memory locations in a computer, radiation, or entropic wear and tear.
An informational precursor to the scopes of linguistic definitions.
A diagram that illustrates distilled structure of possible nodes and lines and arrows which can involve absence/openings, like answers to an unanswered questions, or references to unknown possibilities.
Source: en.wiktionary.org