Feudalism: As mentioned before, this is a social system where landowners granted people land or other benefits in return for military service or labor. In our fast-food analogy, it's like when franchise owners provide jobs and wages to employees in exchange for their work.
Samurai: These were warriors who served under daimyos during this period. They're akin to managers at each individual fast-food location in our analogy.
Fiefdom: This term refers to an estate of land, especially one held on condition of feudal service. It's similar to how each individual fast-food location operates within its own territory.