The study of customer relationship management method

In recent years, customer relationship management has become a serious and prevailing phenomenon, so that companies are more concern about that. The increasing companies' competition in attracting customers to sell out their productions and services and also the increase of customer power in today's competitive world cause the companies not only to search new customers but also to try to keep their previous customers. During last decade, many different organizations become aware of the importance of providing customers' needs and have known that maintenance of existing customers in much cheaper than attracting new customers.