5 Y is a simple but very powerful root cause analysis technique
You can use the 5 Whys in troubleshooting, quality improvement and problem solving, but it is best for simple or moderately difficult problems.
The 5 Y strategy is an easy to use, effective tool for finding the root of a problem.
Start with a problem and ask "why" it is occurring. Make sure that your answer is grounded in fact, then ask "why" again. Continue the process until you reach the root cause of the problem, and you can identify a counter-measure that prevents it recurring.
- The vehicle will not start. (the problem)
- Why? - The battery is dead. (first why)
- Why? - The alternator is not functioning. (second why)
- Why? - The alternator belt has broken. (third why)
- Why? - The alternator belt was well beyond its useful service life and not replaced. (fourth why)
- Why? - The vehicle was not maintained according to the recommended service schedule. (fifth why, a root cause)
Asking a question gets the brain working to find an answer. Instead of worrying about the problem, always start by asking why.
Ref:Wiki
No comments:
Post a Comment