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:

  1. (A), (B) and (C) Only
  2. (B), (C) and (D) Only
  3. (C), (D) and (A) Only
  4. (A), (B) and (D) Only

Answer (Detailed Solution Below)

Option 4 : (A), (B) and (D) Only

Detailed Solution

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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.

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