Systems are often operated by not integration but blocking, i.e., non-standardization. The system blocking is mainly caused by non-standardization or incompatibility. The integrated system is effective, but researches for quantification of effectiveness from integrating system are few. System blocking causes additional cost which is almost intangible and potential. In this paper we proposed a model to quantify the effectiveness of system integration. To verify the validity of proposed model, we applied the model for Korean information and communication industry and forecasted the cost of integration for South and North Korean telecommunication industry in the way of three scenarios.

Abstract
 1. 서 론
 2. 시스템 블록화 비용과 가시성 분석
 3. 정보통신 분야의 잠재적 비용모형
 4.수치예제: 남북한 통신시스템 단일화의 효과
 5. 결 론
 참고문헌

• 김용필(한양대학교 산업공학과)
• 조장운(한양대학교 산업공학과)
• 윤덕균(한양대학교 산업공학과)