chain of command; command structure
Refers to the hierarchical system through which orders are passed in an organization, especially military or corporate.
In the military, the chain of command is strictly defined.
We need to review the command structure for the new project.
指揮系統 also means chain of command but emphasizes the act of leading or directing, while 命令系統 focuses on the flow of orders.
chain of command
Compound of 命令 (order, command) and 系統 (system, lineage).