COSTUMER RELATIONSHIP MANAGEMENT[CRM][SYSTEM]
CRM is Customer Relationship Management. That mean customer can do this for any system. CRM made because of the unstable circle by software management. CRM build for a big scale of the relationship between 1 system with the technology environment and another circle different from the system as we call real. CRM concept is easy. To make a bridge and breaking wall of between technology adaption and real. CRM make assure validation of used on any ecosystem and system of technology produces. The sample is bitcoin technology they do not have CRM. That why need break wall to it. This document from 2016-now.