INTRODUCTION“Virtual humans are artificial agents that include both a visual body with a human-like body and intelligent cognition that guides the body's action” ( Traum, D., 2007). It can have many roles, such as acting as a role player in a training system, acting as a tutor, and even having a role in a game. These virtual humans can be used in many different fields of work. Nowadays, people even use virtual humans as a medical application. The precedent was for PTSD and ADHD using virtual reality systems. Besides that, virtual humans can also identify ethnicities and cultures. There are different conversational behaviors of virtual agents. In this clever way, they also use many techniques to make the virtual agent look real. They can create virtual humans with natural gesture and facial expression. He can also perform emotionally expressive head and body movement. Through these things, we can begin to recognize the functions of the virtual human model. THE SIGNIFICANT CONTRIBUTION of the VIRTUAL HUMAN MODEL to the BODY OF KNOWLEDGE Mr...