For example, when you find that your sales

[robiulhasan]

5WHY analysis is an analytical method in which you ask yourself "why does something happen?" five times. In order to analyze an event, you need to find the root cause of the event. 5WHY analysis is a framework for thinking about "why something is happening in the first place" by repeating the process of asking questions.

have decreased by 20% in a year, you ask "Why?". Then you come to the conclusion engineering directors email leads that the number of customers is decreasing. Then you ask "Why is the number of customers decreasing?" a second time, and keep asking "Why" until you have asked five times.

Logic Tree Analysis
Logic tree analysis is a framework for listing multiple factors that are thought to be the cause of a problem and exploring the causes of each of them. The problems are arranged in a tree-like structure, from which you can find measures to solve the problem.

For example, let's say that "sales have decreased by 10%" and there are two possible causes: "a decrease in store visit rate" and "a decrease in advertising costs." Next, we will look more deeply into each cause and find the root cause of the issue.

3C Analysis
The C in 3C analysis stands for "Customer (market/customers)," "Competitor (competitor)," and "Company (your own company)." This is a method to analyze these three elements and explore the success factors. These success factors are called KSFs (Key Success Factors).