What is Poka Yoke?
Poka Yoke means mistake-proofing. It is a concept based on the idea that all mistakes are preventable, and in order to eliminate those mistakes, designs and processes must be modified to make it impossible to make those mistakes. To accomplish this, processes that are designed around operators who are tasked with remembering specific steps are instead redesigned so that these steps are built into the process. ‘Underutilized people’ is considered waste and mistake proofing a process will allow an operator to focus his or her time on the more creative elements potentially leading to more value-added activities. Poka Yoke devices could be limit switches, proximity sensors, vision systems, counters, etc.