Quality Assurance

209Poka-Yoke

• Reduces cost of all materials used, including those used for rework

• Reduces cost of time spent in rework

• Reduces cost of time spent inspecting defective parts

• Reduces lost production time spent on defective parts or rework

• Increases customer satisfaction

• Increases worker morale

All these benets are actually materialized because mistake proof-

ing focuses on increasing value-added activities of products/processes

as opposed to non-value-added activities. Value-added is dened as any

operation that changes, converts, or transforms material into the prod-

uct that is sold to the customer and for which the customer is willing to

pay. Satisfaction is achieved! On the other hand, non-value-added activity

is dened as any o ...