For example, the market is a big birthday cake.

the first segmentation: cut the cake into pieces, some with fruit, some without fruit, some with more cream, and some with less cream. Piece by piece, the cake (market) segmentation is completed.

Part II targeting: You choose the cake piece according to your hobby. You like to eat fruit, so you choose the piece with more fruit. In marketing, that is to say, you choose a targetmarket that is suitable for the enterprise and profitable.

Part III: You like fruit cakes, so tell people around you how delicious cakes with fruits are to prove that your choice is the best. In marketing, advertising and other means are used to tell your company's image, proct and so on to attract consumers.