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Reducing Batch Size

B1: The Batch Size Queueing Principle: Reducing batch size reduces cycle time.​

B2: The Batch Size Variability Principle: Reducing batch sizes reduces variability in flow.​

B3: The Batch Size Feedback Principle: Reducing batch sizes accelerates feedback.​

B4: The Batch Size Risk Principle: Reducing batch size reduces risk.​

B5: The Batch Size Overhead Principle: Reducing batch size reduces overhead.​

B6: The Batch Size Efficiency Principle: Large batches reduce efficiency.​

B7: The Psychology Principle of Batch Size: Large batches inherently lower motivation and urgency.​

B8: The Batch Size Slippage Principle: Large batches cause exponential cost and schedule growth.​

B9: The Batch Size Death Spiral Principle: Large batches lead to even larger batches.​

B10: The Least Common Denominator Principle of Batch Size: The entire batch is limited by its worst element.​

B11: The Principle of Batch Size Economics: Economic batch size is a U-curve optimization.​

B12: The Principle of Low Transaction Cost: Reducing transaction cost per batch lowers overall costs.​

B13: The Principle of Batch Size Diseconomies: Batch size reduction saves much more than you think.​

B14: The Batch Size Packing Principle: Small batches allow finer tuning of capacity utilization.​

B15: The Fluidity Principle: Loose coupling between product subsystems enables small batches.​

B16: The Principle of Transport Batches: The most important batch is the transport batch.​

B17: The Proximity Principle: Proximity enables small batch sizes.​

Proximity reduces the cost of transporting or communicating in small batches, making processes faster and more efficient. In manufacturing, close distances enable one-piece flow and greater flexibility, while in product development, colocated teams benefit from real-time, face-to-face communication. This eliminates delays inherent to asynchronous communication, unlocking the full advantages of small batch sizes and enhancing responsiveness to emerging needs.

B18: The Run Length Principle: Short run lengths reduce queues.​

B19: The Infrastructure Principle: Good infrastructure enables small batches.​

B20: The Principle of Batch Content: Sequence first that which adds value most cheaply.​

B21: The Batch Size First Principle: Reduce batch size before you attack bottlenecks.​

B22: The Principle of Dynamic Batch Size: Adjust batch size dynamically to respond to changing economics.​