Customer relationship management顧客關係管理 (CRM) is a customer-centric business strategy with the goal of maximizing profitability, revenue, and customer satisfaction. Technologies that support this business purpose include the capture, storage and analysis of customer, vendor, partner, and internal process information. Functions that support this business purpose include sales, marketing, customer service, training, professional development, performance management, human resource development, and compensation. Technology to support CRM initiatives must be integrated as part of an overall customer-centric strategy. Many CRM initiatives have failed because implementation was limited to software installation without alignment to a customer-centric strategy.

Quoted from http://en.wikipedia.org/wiki/Customer_relationship_management