While the study of samurai had two schools of theory, the 'local lord' and 'function,' it was apparent from the continuous characteristics seen from the military system under the Ritsuryo system to medieval bushi by examining the function and especially techniques (cavalry and archery).
武士論研究には「在地領主論」と「職能論」という2つの流れがあることは述べたが、職能、特にその技能（弓馬）に着目すれば、律令制下の軍制から中世武士までの連続性がかなり明らかになってきている。