Companies are making design changes by improving product quality and function to succeed while meeting customer requirements continuously. Design changes are changing the product BOM's amount, item, specification, and shape while causing a change in the product's structure. At this time, the problem of inventory exhaustion of parts before design change is a big topic. If the inventory exhaustion fails, the pieces before the design change become unused and are discarded, resulting in a decrease in asset value, and the quality cost of the design change affects the company's profits. Therefore, it is necessary to decide to minimize quality costs while minimizing waste inventory costs at the time of application of design changes. According to the analysis, priorities should be prioritized according to urgency because the quantity of items before the design change affects the applied lead time.

1. 서 론
2. 기존 연구 및 문헌 조사
    2.1 설계변경
    2.2 재고 소진
3. 아우트리거 설계변경 및 재고 소진 대상 선정
    3.1 아우트리거 체크 밸브 및 제관물 구조설계변경
    3.2 재고 소진 대상 선정
4. 재고 소진 Case 분석 및 평가
    4.1 부족 부품 발주 없이 재고 소진 Case 분석
    4.2 부족 부품발주 후 전체 재고 소진 Case 분석
    4.3 재고 소진 없이 전부 폐기 후 적용 Case 분석
    4.4 실패비용 분석 및 설계변경 긴급성 평가
    4.5 재고 소진 제품의 수량과 설계변경 적용리드타임 분석
5. 결과 비교 및 고찰
References

• Chan-Woong Park(가천대학교 기계 스마트 산업공학부) | 박찬웅 Corresponding Author