Up-to-date manufacturing companies have faced a market-driven environment of pull production order. There should be a difference in operating manufacturing resources according to the type, quantity, and delivery time of manufactured products, because the process situation in pull production is changed by customer orders. And it should be taken into account from the stage of preparing for production such as process design and the placement and utilization of manufacturing resources. However, the feasibility of production plans is limited because most of small manufacturing businesses make production/supply plan of the parts and products assuming that equipment abilities in scheduling is sufficient without managing process standard information systemically. In this study, a discrete event simulation system based on BOM (bill of material), that is F-OPIS (online productivity innovation system), is introduced and a case study on application of the system leading to improving productivities is presented. F-OPIS deals with a decision-problem on production management and it is specialized for small-and- medium sized manufacturing companies. The target company of this case study is a typical small-and-medium sized manufacturing company in Korea, that produces various machined parts. The target company adopts make-to-stock production management to prevent tardy delivery because of fluctuations in demand. Therefore, it is required to apply an efficient inventory control solution for improving productivities. In this paper, based on the constraints of working capacity of manufacturing resources, the bottleneck process is analyzed as production conditions are changed. Consequently, an improvement plan is proposed, that eventually enhances overall utilization rates of resources in the bottleneck process and reduces overall production lead-time and inventory level.

1. 서 론
 2. 관련 문헌연구
 3. F-OPIS
  3.1 시스템 개요
  3.2 시스템 특징
  3.3 시스템 활용
 4. 사례 연구
  4.1 사례기업 현황
  4.2 입력 데이터 수집
  4.3 AS-IS 모형 수립 및 분석
  4.4 TO-BE 모형 수립 및 분석
 5. 결 론
 Acknowledgement
 References

• 김상태(한밭대학교 산업경영공학과) | Sangtae Kim
• 신문수(한밭대학교 산업경영공학과) | Moonsoo Shin Corresponding Author
• 류광열(부산대학교 산업공학과) | Kwangyeol Ryu
• 조용주(한국생산기술연구원) | Yongju Cho