2. Why do people make inadvertent mistakes? How
does poka-yoke help prevent such mistakes
• Inadvertent mistakes are the ones we didn’t know about until it was
too late.
• We didn’t follow a procedure because we didn’t know about it. We
daydreamed while we should have been completing a task and got
things wrong.
• We didn’t mean to make a mistake, it just happened.

3. Poka Yoke Technique
• One of the most potent strategies for standardizing work, it may be
used in any industrial or service business.
• Poka-Yoke is any mechanism in a Lean manufacturing process that
helps to avoid mistakes.
• To avoid faults from developing, Poka-Yoke checks that the
appropriate circumstances exist before a process step is completed.
• Instead, Poka-Yoke serves a detective role, identifying flaws in the
process as early as feasible.

4. List and explain the three levels of mistake-
proofing
• Level 1:
1. At Level 1, the goal is to prevent the faulty product from reaching
the next process, or even to reach its intended consumer.
2. Cannot pass or accept.
3. Checklists or inspection sheets testing at the end of a product
lifecycle can be the examples

5. Level 2
• Cannot process
• Commonly referred to as the "warning" level.

6. Level 3:
• Cannot produce.
• All measures applied to prevent the fault from happening are
included in Mistake Proofing Level 3.
• Parts that do not comply with the law cannot be produced.

7. Why is brainstorming an important tool in
the Improvement phase of DMAIC
• In the DMAIC process, the fourth phase is the Improve phase.
• Brainstorming:
• Generating Many Radical, Creative Ideas
• Using brainstorming, you may solve problems in a casual, informal
manner while also using lateral thinking.
• When individuals are "jolted" out of their regular patterns of thinking,
it helps them to become unstuck.

8. Brainstorming Method
1. You can use this tool to find solutions to difficulties that are
interfering with your present workflow.
2. All viable options should be considered in order to motivate team
members to participate.