The Atschedar Scale was a system of measurement designed in 1987 by the sociologist Hans Atschedar to classify sapient entities by their compatibility with other entities.
Atschedar Class 1: Fully civilized (can fit inside a culture and society by instinct), capable of cooperating with other races. Examples include Humans and Trolls.
Atschedar Class 2: Dubviously civilized (prone to animalistic behavior), often has trouble cooperating with other species. Examples include Vampires and Rougas.
Atcschedar Class 3: Instinctively hostile towards other species. Examples include Rakshasha and Akkitori. This class is the most controversial because of the fact that many creatures which may rank a Class 3 lack major signs of intelligence associated with sapience.