Delete - quality pokayoke

8 important questions on Delete - quality pokayoke

What is the definition of Poka-Yoke / Mistake-Proofing Systems?

A mistake-proofing technique designed to prevent errors in manufacturing or setup activities.

"Poka" means error, and "Yoke" means avoid

Cultural Approach to Error Proofing

  • Conventional Thinking: Identifies human errors as the cause of mistakes.
  • Toyota Way: Considers errors as failures of the system and methods.
  • Benefit: Shifting focus from blaming individuals allows for the creation of more effective systems and problem-solving.

Why Use Poka Yoke?

  1. Respect for People:
    • People are not required to be perfect.
    • Shields individuals from errors.
  2. Improves Quality:
    • Reduces Cost of Poor Quality (COPQ).
  3. Frees Up Time:
    • Faster processes and reduced rework.
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

Topic: Error vs Defect

  • Error: Deviation from a specified process.
  • Defect: A part, product, or service that does not meet customer expectations.
  • Relationship: Defects are caused by errors.

Topic: Types of Human Errors

  • Common:
    • Forgetfulness, misunderstanding, inexperience, etc.
  • Uncommon:
    • Laziness, disregarding instructions, lack of motivation.
  • Topic: Types of Human Errors

  • Common:
    • Forgetfulness, misunderstanding, inexperience, etc.
  • Uncommon:
    • Laziness, disregarding instructions, lack of motivation.
  • Topic: Approach to Error-Proofing Devices

    1. Control:
      • Stops a line or process to take immediate corrective action.
    2. Warning:
      • Signals deviations through buzzers, lights, or other warning devices without shutting down the process on every occurrence.

    Topic: Types of Poka Yoke Methods

  • Contact Methods:
    • Rely on sensing devices detecting contact with a device.
  • Fixed-Value Methods:
    • Used when a process must be done a certain number of times.
  • Motion-Step Methods:
    • Used when a process requires several activities in sequence.
  • The question on the page originate from the summary of the following study material:

    • A unique study and practice tool
    • Never study anything twice again
    • Get the grades you hope for
    • 100% sure, 100% understanding
    Remember faster, study better. Scientifically proven.
    Trustpilot Logo