Being a cowgirl at heart, I know that in some areas of the country ranchers can run their cattle herds anywhere they want unless a property owner fences them out, otherwise known as ‘Open Range.’ So you may be thinking to yourself… what in the heck does this have to do with NPC’s or better known as Non-Player Characters? Well… in a virtual world one can have free roaming (otherwise referred to as ‘open range’) NPC’s wandering around. The approach of a controlled or intelligent virtual world environment offers the use of Non-Player Characters to guide the trainee through the simulation exercises while NOT allowing these NPC’s to wander around in the ‘open range’ if you will. Rather these NPC’s have specific purposes to their actions and interactions with the trainees. Virtual world training inside a smart fence, so to speak.