For example. If we want to do business with a restaurant, we must find a location. When we have a good location, we need to select a group of consumers. Choose food that is popular. When we have good information, research, and planning. Targeting success step by step. And after our business successful by placing target then we should expand the restaurant into the growing business so that makes it more profitable, sustainable. In investing about stocks, as well. When to buy a stock It must also have an understanding of the business of the shareholders that the business about? Operating result goes in the right direction? There is an opportunity to grow again? Or how saturated point.