The biggest difficulty the small and small business currently face is not to have the effective cusomer management system that is the computerization of management, And, CRM has mary problems that make companies confused. As the result, projects are being suspended and budgets cut, plans for introducing CRM suspended or cancelled and many CRM software vendors and technical consulting firms are facing serious management crisis. Yet, this phenomenon can be regarded as an interim one. In fact, some cases that successfully introduced CRM show that CRM is migrating from small scale which is typical when introduced to larger scale through various tests. Therefore, this study tries to segment customer for the sieving the problem. And it make efficient customer management.

Abstract
 1. 서론
 2. 고객 DB 세분화
 3. 고객 DB Scoring
 4. 고객 집단 차별화 관리
 5. 결론 및 향후 연구과제
 6. 참고문헌

• 양광모
• 김영준
• 강경식