This document discusses customer relationship management (CRM) systems. It defines CRM as integrating corporate strategy, business processes, and technology to accomplish customer-focused goals. The document outlines the evolution of CRM from automating discrete customer processes in the 1980s-1990s to integrated systems today. It describes the components of CRM systems including marketing, sales, customer service, and data analytics. It also discusses CRM architecture, vendors, and emphasizes that successful CRM requires changes to business processes and company culture, not just technology.