
Continuous Flow
Every Lean expert will tell you that continuous flow of value is the goal of a Lean process. Batching work is the opposite of continuous flow, yet most people batch jobs because they feel it is more efficient. For example, if we are baking a cake we may as well bake a second cake while the recipe book is open, all the ingredients are out, and the oven is on. The time for baking two cakes in a batch will be only slightly more than baking a single cake. The average time per cake is, therefore, lower when batching - this is more efficient! So if batching is more efficient, are the Lean experts wrong? Why we batch work All people, even lean practitioners, batch some of their work.…