APICS Certified in Planning and Inventory Management (CPIM) Exam 1 Practice

Throughput is the rate at which a system produces finished units or moves items through a process. It answers how fast the process can turn inputs into completed outputs. This differs from lead time (how long a unit takes from start to finish), capacity (the maximum possible output rate under ideal conditions), and productivity (output per unit of input, like labor hours). For example, if a line reliably finishes 100 units per day, that’s the throughput. Bottlenecks or inefficiencies can keep throughput lower than the theoretical capacity, and improving throughput typically involves speeding up the slowest part of the process or removing delays. Therefore, the term that best fits the idea of the production or processing rate is throughput.