Black belt (martial arts) of ability when using these tactics and are sometimes referred to as McDojos or belt factories. In some Japanese schools, after obtaining a black belt the student also begins to instruct, and may be referred to as a senpai (senior student) or sensei (teacher). In others, a black belt student should not be called sensei until they are sandan (third degree black belt), or the titles kyosa or sabom in Korean martial arts as second degree or higher, as this denotes a greater degree of experience and a sensei must have this and grasp of what is involved in teaching
Styles of Chinese martial arts further identify the particular style. Other classification schemes include the concept of "external" () and "internal" (). This criterion concerns the training focus of a particular style. Religious affiliation of the group that found the style can also be used as a classification. The three great religions of Taoism, Buddhism and Confucianism have associated martial arts styles. There are also many other criteria used to group Chinese martial arts; for example, imitative-styles () and legendary styles; historical styles and family styles. Another more recent approach is to describe a style according to their combat focus. The traditional dividing line between