Schematic diagram are used to describe a high level functioning system .
They simplify and facilitate communication by visualising the relationship between system objects and making them more obvious . If you are designing to understand a system,diagramming it will certainly help.
I think you understand
kasi hangin lang po yon
o be a good referee, you must continue to learn and improve with every game.
experience is the best teacher and confidence builder.
the more games you do the more comfortable and confident you'll be.
if something occurs in a game and you aren't sure if you made the correct decision, go back to the laws of the game and double check.
talk to more experienced referees about the decision you made and whether or not you should have done something differently, or email an experienced referee with the question.
watch experienced referees and notice how they deal with specific situations that cause you trouble in a game.