What is a major benefit of reducing batch size?

Reducing batch size is primarily beneficial because it leads to an increase in throughput. Throughput refers to the rate at which the system produces completed work items. Smaller batch sizes allow for more frequent releases and faster feedback cycles, which means that work items can be completed and delivered to customers more efficiently. This incremental approach helps teams identify and resolve issues sooner, minimizes delays in delivery, and allows for a more adaptable response to changing requirements or conditions.

In contrast, decreasing batch size does not inherently increase velocity in the same way; velocity measures the amount of work done over a specific time, while throughput focuses on the work being completed and delivered. Reducing batch size may help decrease stress on the system, but the primary concern is not just system stress but improving flow and efficiency. Moreover, decreasing batch size does not imply an increase in work in process, as reducing batch sizes usually leads to a more streamlined workflow with lower inventory of unfinished work items. Therefore, the increase in throughput stemming from reduced batch sizes is a major advantage within the context of Agile and Lean practices.