• 품질경영학회지
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• 제41권3호
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• pp.443-456
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• 2013

Purpose: Recently, many quality issues are aroused in military forces, such as failures in K-series weapons, combat boots defects and 40mm ammunition explosion accident. To address these problems, this paper suggests to use so called, Defense Quality Score, which is based on Taguchi loss function and developed in this research. Methods: Current defense specification states only the minimum requirement to produce the military supplies. Therefore, it is not easy to indue the continuous quality improvement of the supplies. This research suggests to use the defense quality score which measures the current status of defense supplies'quality characteristics. Results: We applied the defense quality score concept into the hot pepper sauce and long time stockpiled ammunition. We first categorize the quality characteristics into three categories, then assign the certain amount of score based on the importance of the characteristics. Lastly, we applied the modified Taguchi loss function to calculate the achieved score of the characteristics. The perfect score is 100 and the closer to the score, the better product it indicates. Conclusions: In this research, we developed the modified Taguchi loss function to apply into the korean defense supplies. The loss function is utilized to calculate the achieved level of satisfaction of the supplies based on the defense specifications. The application of defense quality score may help to stimulate the continuous quality improvement and encourage the good will quality competition among the military providers.

• 품질경영학회지
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• 제41권3호
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• pp.465-474
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• 2013

Purpose: To provide a variety of stable military supplies, risk should be avoided or removed. This paper aims to provide an objective method of risk assesment for risk matrix to evaluate risk level. Methods: According to previous results of risk assesment through risk matrix, some parameters and probability density functions, which include characteristics of military supplies, are selected and Risk matrix is modelled based on that. Results: Results show that a proposed method can evaluate objectively risk level through the stochastic modelling and provide well-balanced risk assessments by categorizing into 3 levels such as high, middle and low level risk. Conclusion: A current risk assessment method includes substantial subjectivity of risk assessment and as a problem about military supplies comes up, we can not show any appropriate evidences for decision of risk assessment. We propose an objective scheme employing stochastic modelling with parameters and probability density functions.

• 품질경영학회지
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• 제47권1호
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• pp.151-162
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• 2019

Purpose: This study is in order to secure high quality of military supplies, it is important to secure design quality in the development phase. I will review how to establish a quality assurance system in the development phase based on the author's seminar presentation contents and application example of Hanwha Systems Co., Ltd. Methods: To guarantee design quality in the development phase, in 2002, quality assurance system that is adequate for SQA(Software Quality Assurance)'s requirements of CMM(Capability Maturity Model) was conduct. In 2009, based on the CMMI(Capability Maturity Model Integration) Level 5, there has been continuous and reenforced quality assurance activities. Results: By suggesting the construction and a case study on application of R&D quality assurance, it would be helpful for companies aiming to construct or enhance quality assurance system. Conclusion: To secure high quality for military supplies, a development QA system should be established to secure quality in the development phase. In addition, Total life cycle QA system for development, mass production and operation phase should be reestablished.

• 한국군사과학기술학회지
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• 제16권3호
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• pp.250-254
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• 2013

Faster and cheaper transportation of the war supplies to the frontlines is essential for winning a war. This paper proposes a method to select the optimal location of the strategic military base, e.g., the Quartermaster Corps, that minimally connects three frontlines using the optimization technique. The results are also compared to the Steiner Tree theoty.

• 한국산학기술학회논문지
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• 제17권3호
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• pp.231-240
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• 2016

최근 발생한 원전부품 시험성적서 위변조 사건은 국민들에게 많은 충격을 가져왔다. 또한 케이블 제조회사들은 부당한 이득을 취득할 목적으로 시험 데이터를 위조했으며 군수분야에서도 시험성적서를 위조하여 불량부품을 납품한 사례도 발견되었다. 성적이 위조된 부품은 무기체계 운용에 심각한 영향을 미칠 수 있으며, 이는 국가안보에 직결된다는 점에서 매우 중요한 사안이다. 본 연구에서는 군수업체의 시험데이터 위조 가능성을 검출할 수 있는 통계적 이론 기반의 방법론을 확립하고 이를 엑셀 툴을 활용하여 유효성 검증 툴을 개발하였다. 또한 군수업체 시험시스템의 전반적인 개선을 목적으로 기존의 시험시스템 요구사항들을 반영한 체크리스트 기반의 검증 도구 역시 개발하였다. 본 유효성 검증 툴을 활용하여 위조된 시험 성적서의 검출 및 검증을 통해 불량부품 사용을 사전에 차단함으로써 군수품 품질보증에 중요한 역할을 할 것으로 기대된다.

• 한국산학기술학회논문지
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• 제20권10호
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• pp.107-116
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• 2019

방위산업은 최근 방산수출과 연계하여 국가의 주력사업으로 대두되고 있다. 이를 위해 군수업체의 품질수준 조사는 방위산업 육성정책을 수립하는데 필수적이다. 군수품 생산업체 품질수준 조사는 군수품 생산 업체의 내부 품질관리 및 품질경영 시스템에 대한 조사 및 분석을 통해, 향후 군수품의 전반적인 품질 수준 제고를 위한 품질 정책 수립에 기여하기 위해 매 년 수행하고 있다. 과거에 사용 하였던 품질수준 측정 지표가 현재의 실태를 반영하는데 한계가 있었다. 따라서 품질 수준의 진단 모형과 측정 지표를 개선할 필요성이 제기 되었다. 본 논문은 타 기관 및 기업의 품질 수준 측정 지표의 사례를 조사하고, 기존에 국방 분야에서 실시되고 있는 다양한 평가지표 등을 분석하였다. 또한 과정 지표와 성과 지표의 연계성을 강화하여 군수품 생산업체의 품질수준을 객관적이고 직관적으로 표시될 수 있도록 개선하였다. 본 논문을 통해 제시된 측정 지표 및 모형은 향후 군수품 품질수준 조사에 활용될 것이다. 또한 군수품 품질수준 조사결과는 정부의 국방품질관리 정책을 보다 효과적으로 수립하는데 활용될 수 있을 것이다.

• 품질경영학회지
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• 제51권2호
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• pp.155-170
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• 2023

Purpose: Nowadays, the risk assessment system is widely used in many industrial and public areas to reduce the possible risks. The system is used to determine the priorities of the government quality assurance works in Defense Agency for Technology and Quality. However, as the risk assessment system is used for other purposes, there are some items that need improvement, and in this study, we propose improvement plans by benchmarking the risk assessment systems of other institutions. Methods: In this paper, first, the procedures of risk assessment system used in many industrial sites were reviewed, and how each institution specialized and applied the system. Afterwards, by benchmarking various risk assessment systems, an improvement plan on how to operate the risk assessment system in the case of government quality assurance for centrally procured military supplies was presented, and practical application cases were presented to prove the usefulness of the improvement plan. Results: The proposed risk assessment system differs from the existing system in five major aspects. First, inputs, outputs, and key performance indicators were specified from the systematic point of view. Second, risk analysis was analyzed in four dimensions: probability of occurrence, impact, detection difficulty. Third, risk mitigation measures were classified, control, transfer, and sharing. Fourth, the risk mitigation measures were realized through document verification, product verification, process verification, and quality system evaluation. Finally, risk mitigation measures were implemented and the effectiveness of the risk mitigation measures was evaluated through effectiveness evaluation. Conclusions: In order for the risk assessment procedure proposed in this study to be applied to actual work, it is necessary to obtain the consent of the person involved in the work due to the increased time for risk identification and preparation of the government quality assurance log, and a change in the information system that performs the actual work is required. Therefore, the authors of this study plan to actively perform internal seminar presentations and work improvement suggestions to apply these research outputs to actual work.

• 한국데이터정보과학회:학술대회논문집
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• 한국데이터정보과학회 2004년도 추계학술대회
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• pp.97-104
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• 2004

Continuous efforts have been made to transform industrial technologies possessed by private sector for national defense purposes over decades. Among these efforts, the unification programs between military and commercial specifications resulted in cost reduction and high efficiency of military supplies. In this paper, we study the unification of reliability specifications, which seems to have been widely used for military and commercial fields. We also propose a method of developing an unified reliability specification for electro-mechanical relays.

• 품질경영학회지
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• 제43권3호
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• pp.327-340
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• 2015

Purpose : Recently, many quality issues are aroused in military forces, such as failures in K-series weapons, combat uniforms' defects and 40mm ammunition explosion accident. To address these problems, Defense Agency for Technology and Quality(DTaQ) introduced new systems such as Manufacturing Readiness Assessment(MRA), Test Report Information System(TRIS) and so on. However, these activities require the human and time resources which cannot be increased in short period. In this paper, we suggest more practical and efficient product examination method. Methods : The most popular and widely used government's quality assurance technique is a sampling method to examine the product. In this research, we first reviewed the DTaQ's quality assurance regulation, then identified several possible problems and finally suggested more efficient and effective sampling plans. Results : We have suggested new sampling framework and evaluated its performance on two military supplies by comparing with other sampling method, and observed that the number of tested samples can be substantially reduced. Therefore, required quality assurance time can be saved. Conclusion : In this paper, we first reviewed the product examination frameworks of DTaQ, PPQMS and DCMA. Then we identified several possible problems which can cause the loss of objectivity and time. To handle these problems, we suggested the new product examination framework and tested the framework to verify the performance.

• 산업공학
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• 제22권3호
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• pp.287-301
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• 2009

The purpose of this study is to develop a mid and long-term roadmap for "Commercial and Military Collaboration Standardization(CMCS) program." We developed three layer's roadmap through systematical process. The roadmap is composed of four targets, eight projects and forty-six tasks. To evaluate the quality of the roadmap, we applied checklist method and statistical analysis. Consequently, the quality is positive and it shows that the roadmap could apply for CMCS program. In addition, it is expected to contribute to the standardization between military supplies and commercial products.