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
Japanese martial arts treat their seniors with respect, and plays an important role in giving the senior students the opportunity to learn leadership skills. Senior students may or may not teach formal classes, but in every respect their role is as a teacher to the junior students, by example and by providing encouragement. There are ultimately two ranking systems in the Japanese martial arts, although some schools have been known to blend these two together. The older system, usual prior to 1868, was based a series of licenses or "menkyo". There were generally very few levels culminating in the license of total transmission