4) Graphic Shorthand
Structure of Graphic Shorthand system has fundamentally two features.
Graphic Shorthand system is composed of
First,
Setting up a method, which is arbitrary, selected the units among possible materials for Shorthand letters.
According to Ferdinand de Saussure, the relation between the visual image and the meaning is "arbitrary". there is no direct connection between the shape and the concept.
This idea can be applied in Graphic Shorthand too. There is no special relation among meaning, pronunciation and letter,so that many Graphic Shorthand systems were born and still exist.