This document outlines 7 steps to effectively design and implement customer segmentation in a CRM system. The steps are: 1) Identify business needs, 2) Rank needs by impact, 3) Design segments based on highest priority needs, 4) Test segment usability with salespeople, 5) Implement segments in the CRM, 6) Educate sales teams, and 7) Ensure data consistency. Following these steps helps create a customer segmentation that provides valuable information to marketing and sales teams.