Which term sets the pace of production to match the rate of customer demand and is the heartbeat of lean production systems?

• A. Cycle time
• B. Lead time
• C. Takt time
• D. Throughput

Answer: (C)

Takt time is the pace at which production must run to meet customer demand, and it serves as the heartbeat of lean systems. It is calculated by dividing the available production time by the rate of customer demand, which sets the target rhythm for production activities. For example, if you have eight hours of production time in a shift and the customer requires 100 units, takt time would be 480 minutes divided by 100, or 4.8 minutes per unit. This means you should aim to complete a unit every 4.8 minutes to stay aligned with demand.

Cycle time, by contrast, is the actual time it takes to produce one unit, and should be compared to takt time to ensure flow; if cycle time exceeds takt time, you fall behind, while a cycle time shorter than takt time means you have slack but still need to pace to demand. Lead time is the total time from receiving an order to delivering it, not the daily production rhythm, and throughput is the overall rate of output over time, which is influenced by how well you synchronize to takt time. So the term that sets the pace to match customer demand is takt time.