This is an example of a TCL Conceptual Map. Tcl, or Tool Command Language, is a free and open-source C library with a sophisticated dynamic scripting language. A concept map is a diagram that depicts the links between concepts and ideas graphically. Most concept maps display concepts as boxes or circles (also known as nodes) that are organized hierarchically and linked by lines or arrows (also called arcs). To assist illustrate the links between concepts, these lines are labeled with connecting words and phrases. It is utilized as a knowledge representation tool, which means that it represents the knowledge structure that we store in our thoughts about a certain issue.
Use a concept map creator like EdrawMax to assist people in better understanding and visualizing various ideas and concepts.