This research will introduce the characteristic of the current E-Sales system, the concept of CTP(Capable to Promise), the process analysis of CTP, the modeling of algorithm and the development of algorithm. This research considers the environment of using Job-Shop method. The CTP algorithm models specially through using LPST(Latest Possible Start Time) and EPST(Earlist Possible Start Time) method. It is important part of executing CTP. This research develops the system which can be implemented in the various business environment through additional and continuous research.

Abstract
 1. 서론
 2. CTP의 이론적 고찰
 3. CTP 주문처리 프로세스
 4. CTP 알고리즘
  4.1 LPST를 통한 CTP 알고리즘
  4.2 EPST를 통한 CTP 알고리즘
 5. CTP 시스템 구현
 6. 결론 및 향후 과제
 참 고 문 헌

• 박상민(인천대학교)
• 남호기(인천대학교)
• 김용주(한림대학교)