Which of the following statements are correct regarding 'Poka-Yoke' ?

(A) The term poka-yoke originated with the Japanese Baka-yoke.

(B) The contact method of poka-yoke identifies defects through physical attributes.

(C) The fixed value method of poka-yoke is used in a process with non-recurring activity.

(D) The motion-step method of poka-yoke determines whether prescribed steps are completed in order.

Choose the correct answer from the options given below:

The correct answer is - (A), (B) and (D) Only

Key Points

• Poka-Yoke Origin
  • The term poka-yoke originated with the Japanese term Baka-yoke, which means "fool-proofing" or "mistake-proofing."
• Contact Method
  • The contact method of poka-yoke identifies defects through physical attributes such as shape, size, or color.
• Motion-Step Method
  • The motion-step method of poka-yoke determines whether prescribed steps are completed in the correct order.

Additional Information

• Fixed Value Method
  • The fixed value method of poka-yoke is used in processes where certain values must be maintained consistently.
    • This method is not typically used for non-recurring activities but rather for repetitive tasks to ensure consistency.
• Examples of Poka-Yoke
  • Examples include mechanisms that prevent incorrect parts from being used in assembly or systems that alert operators if a step is missed.
• Importance in Manufacturing
  • Poka-yoke techniques are crucial for reducing errors, improving quality, and ensuring safety in manufacturing processes.