There is a Chinese saying that "business is like a battlefield". Since it is a battlefield, we need a complete battle map. There will be three different levels of enterprises on the map: start-ups, medium-sized enterprises and large enterprises. What are the advantages and disadvantages of these three levels of enterprises, what are the typical battle modes, and how they attack the weak links of competitors. Through this battle map, you can see very clearly and think about what level your company is at, how to attack, and how to defend.