To put it simply, it is to analyze the consumption of credit cards, for example, the consumption of amounts ranging from 5,000 to 10,000, or 10,000 to 20,000, the frequency of consumption, the use of credit cards by credit card merchants, and the cardholders of the credit cards. There is a lot of analysis on gender, age, salary level, etc. After the analysis, report statistics are made. Here is just a brief introduction. The specific requirements of each bank and each place are different