This document discusses market segmentation, targeting, and positioning for customer relationship management (CRM). It defines market segmentation as dividing broad markets into subgroups based on shared characteristics to identify the most profitable segments. Business may segment based on industry, geography, demographics, behaviors, or other factors. The goals of segmentation are to understand customer differences and customize marketing approaches. Targeting involves selecting the most attractive segments identified in segmentation. Positioning assesses a business's competitive advantages to position itself attractively relative to competitors in consumers' minds. The document provides examples of segmentation variables and discusses how segmentation connects different marketing and technology disciplines in CRM.