The concept of customer relationship management (CRM) was first put forward by GartnerGroup. 1980 at first, there was the so-called "ContactManagement", which was dedicated to collecting all relevant information of customers and companies. 1985, Barbara? Bender? Jackson put forward the concept of relationship marketing, which made people's research on marketing theory take a new step. By 1990, it has developed into Customercare, including a telephone service center that supports data analysis.