The “Five Whys” method is a problem-solving technique that aims to find the root cause of a problem. The method was originally developed by Sakichi Toyoda, founder of Toyota Industries. They continue to use this method to this day. Taiichi Ohno, creator of the Toyota Production System (TPS), describes the “Five Whys” as “the foundation of Toyota’s scientific approach.”
Along with other philosophies, the Five Whys method is used alongside other well-known methods, such as kaizen, poka-yoke, and jidoka .
The Five Whys is a particularly popular method in various business sectors, but especially in manufacturing companies. This is because their main concern is productivity , efficiency , maximizing production rate , and minimizing downtime .
The benefits of the Five Whys method
Toyota’s innovative method is an extremely simple process, but it can be very effective. The main advantage of the “Five Whys” is that it is one of the most powerful evaluation methods of all non-statistical analyses. It can reveal and identify problems that were not very clear or obvious. The basic idea is to solve problems that arise by continuing to ask at least five times “Why?” until you get to the root cause. This way, you can determine the relationship between different causes of a problem. However, before you start, check if this tool can help your own business.
How to complete a Five Why analysis?
- Gather your team and start with a specific problem. How do you address the problem?
- Questions. Why did this problem arise? Then write your answer under the specific problem you noted in the first step.
- We ask “why” to each of the successive answers you noted until you get to the root cause of the problem.
- The process may last for more or less than five “whys”.
These questions help you think and get to the core of your own decision-making and beliefs.
In conclusion, the “Five Whys” method is easy to implement and widely used in any department or business venture. It helps team members ask for additional information and provide more accurate information about the problem. The solution to restore prosperity to your business exists. Specifically, reexamining recurring problem areas. There, finding a deeper cause can reveal a larger issue or a different approach to improving a business area.
