1, the core idea is different: queuing system is a mathematical model to study queuing phenomenon, which mainly considers factors such as customer arrival time, waiting time, service time and the number of service desks, and how to allocate service resources effectively, so as to optimize service quality and efficiency. Inventory system is a management model to study inventory, mainly considering how to control the quantity and time of inventory optimally, so as to reduce inventory cost and improve the efficiency of supply chain.

2. Different application scenarios: Queuing systems are often used in hospitals, banks, supermarkets and other places that need to wait for services to improve service efficiency and satisfaction. Inventory system is usually used in manufacturing, retail and other enterprises that need to manage inventory to balance the relationship between capital, production and sales.

Inventory system generally refers to inventory control system, which is an important subsystem of logistics system and an important field of logistics research.