In the present article, authors consider a customer-oriented system on the example of CRM-systems. It describes the basic types of CRM-systems, and provides a brief description of each. Here the basic functionality of the main types of CRM-systems are given. Author investigates features of CRM-systems, their purpose and use. In conclusion, the authors infer, that the use of CRM-technologies allows companies to go in the forefront of their competitors, taking in account, that the implemented CRM-system has a versatility, which allows solving a wide range of tasks from the reference of customers` information to the analysis and management of business processes of the company.