How to use the 5 Whys technique?

The "5 Whys" technique is a method of analyzing the root cause of a problem by repeatedly asking the question "Why?" until the fundamental cause is identified. Usually, the question "Why?" is asked five times, but the number can vary.

Example of usage:

1. Problem: Users cannot place an order.
2. Why? — The "Place Order" button does not work.
3. Why? — The script responsible for the button does not load.
4. Why? — The server where the script is stored is unavailable.
5. Why? — The server crashed due to overload.

Thus, the root cause is server overload. This helps focus on solving this specific problem rather than its symptoms.