• The KIPS Transactions:PartD
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• v.15D no.4
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• pp.523-530
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• 2008

There are many defects that cause the process improvement of lifecycle problems during software development. This paper propose the management method of risk items that removes and manages the lifecycle problems as well. For the similar projects, we can estimate defects and prepare to solve them by using domain expert knowledge and the state analysis of defect items, which can greatly improve the software process. This research provides solution of management of risk items problem and detection of defect transition and its prevention and causes that happen on software development. Also, In this paper propose to making quantity of degree and transition phase.

• Korean Journal of Construction Engineering and Management
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• v.23 no.4
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• pp.15-25
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• 2022

As the incidence and mortality of serious disasters in the construction industry are the highest, various efforts are being made in Korea to reduce them. Among them, risk assessment is used as data for disaster reduction measures and evaluation of risk factors at the construction stage. However, the existing risk assessment involves the subjectivity of the performer and is vulnerable to the domestic construction site. This study established a DB classification system for risk assessment with the aim of early identification and pre-removal of risks by quantitatively deriving risk factors using BIM in the risk assessment field and presents a methodology for risk assessment using BIM. Through this, prior removal of risks increases the safety of construction workers and reduces additional costs in the field of safety management. In addition, since it can be applied to new construction methods, it improves the understanding of project participants and becomes a tool for communication. This study proposes a framework for deriving quantitative risks based on BIM, and will be used as a base technology in the field of risk assessment using BIM in the future.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.801-801
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• 2012

최근 과학 IT 패러다임은 기존 하드웨어, 소프트웨어 중심에서 폭발적으로 증가하는 데이터를 활용하여 정치 사회 경제 등 제반 이슈와 연계된 분석 예측으로 진화하고 있으며, 모바일 인터넷과 소셜 미디어 등장으로 데이터가 경제적 자산이 되는 빅데이터 시대가 도래하였다. 급속히 변화하고 복잡해진 사회구조와 재난환경으로 인해 인력에만 의존한 재난관리의 사각지대가 대형재난으로 이어질 우려가 크므로 다양한 재난전조(前兆)를 체계적으로 관리하여 선제적으로 예방하는 체계가 필요하다. 본 연구는 인터넷에 존재하는 재난관련 언론보도, 민원, 제보, 소셜 미디어 등의 비정형 데이터와 재난관련 정형 데이터(DB)를 융합 분석하여 재난전조를 사전에 감지하고 위험요소를 신속히 제거하는 빅데이터 기반 재난전조감지 체계를 제안한다. 최근 피해가 급증하고 있는 도시내수침수 피해 위험 예방을 위해 제안한 재난전조감지 체계를 적용하여 피해발생 위험요소 및 전조, 긴급 이슈 등을 감지하는데 활용하는 방안을 제안한다. 이는 전조를 감지하고 사전 침수 피해를 예측하여 피해 최소화 및 복구비용 절감, 저감능력 강화의 효과뿐만 아니라 위험요인 사전 차단 및 확산방지가 가능할 것으로 기대된다.

• Tunnel and Underground Space
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• v.27 no.6
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• pp.351-356
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• 2017

This study introduces the current status of the design for safety(DfS) introduced as one of the owner - centered construction site safety management plan, and presents the problems and the improvement plan. The design for safety has been shifting from the construction management-oriented safety management to the owner-centered safety management system, The owner has to make the design considering the safety from the design stage centered on the owner. The owner has to review and approve the adequacy of the safety-conscious design and The risk factors that can not be eliminated during design are the system to prevent the disaster at the construction site by planning to eliminate the risk factor when writing the safety management plan that is made at the construction stage. The design for safety system implemented from May 2016 will be further developed to prevent the risk of safety accidents that may occur in construction sites, contributing greatly to the reduction of construction accident. In addition, it suggests ways to develop more efficient and convenient system through continuous hazard finding and system improvement.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.1
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• pp.31-36
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• 2015

There are many uncertainty items when we're working on a software. Especially, if we don't have experience in similar field, ambiguity items have a strong influence on the system entirely. Management of ambiguity items such like uncertainty things is important the factor for reliability of software. Therefore, this research is processing the evaluation criteria for remove of uncertainty items by identify of ambiguity items. Also, this research provides criteria of uncertainty identify and processing of uncertainty items, quantitative evaluation criteria to the remove of ambiguity on software development.

• Journal of the Society of Disaster Information
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• v.14 no.3
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• pp.334-342
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• 2018

Purpose: The purpose of this study is to examine and improve the issues related to National Safety Inspection currently operation and reform the system for response to various disasters. Method: For the completion, this study established theoretical background using materials related to National Safety Inspection and identified the issues using the open statistical data for National Safety Inspection to suggest the improvement plans. Results: National Safety Inspection has been operating a complete large-scale inspection on risk factors in cooperation with the central government, local governments, and citizens since 2015 to remove various disaster factors neglected in people's daily lives. Operation of National Safety Inspection had positive influence in preventing major disasters. However, inefficient activity is pointed out due to issues related to cooperation with other institutes, limitation for citizen's positional role, and superficial inspection. Conclution: To solve this issue, this study proposed strengthening of communication activity with disaster institutes, strengthening of efficiency through citizen participation by type, and actualization of checklist used in National Safety Inspection.

• Journal of the Korea Institute of Building Construction
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• v.13 no.6
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• pp.557-564
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• 2013

Unsafe and dangerous factors or environments on building construction sites often cause safety accidents. Sometimes, accidents happen despite the existence of warning and caution signs. Such warning signs are likely to be hidden by stacked materials or temporary facilities on site. If workers cannot see the signs when moving or working, they could be injured, sometimes fatally. Many studies have focused on each worker's position, and various systems have been developed using GPS signals and sensors. This paper suggests a method for identifying the problem of worker inability to see the unsafe factors, to manage the problem in the construction planning phase by considering things from the worker's perspective. The method uses CAD software to investigate the relation between the height of stacked materials and the visible ratio of the unsafe factor. The results of a sample project show that the changes in the height and location of stacked materials make the site safer.

• Proceedings of the Safety Management and Science Conference
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• 2009.11a
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• pp.441-459
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• 2009

교량공사는 지상작업과 고소작업이 혼재하고 작업공종이 복잡하여 위험성이 높은 공사로 추락, 협착, 붕괴, 낙하 비래 재해의 발생빈도가 높다. 또한, 중량 부재의 운반, 조립, 양중 등의 작업과정에서 유해 위험 기계기구와 건설장비 사용에 따른 유해 위험 요인이 산재하여, 유해 위험의 정도와 재해 발생빈도 및 재해의 강도에 차이가 있어 위험성평가를 통한 정량화된 위험지수의 제시가 필요하다. 위험성 평가는 교량공사의 특성을 고려하여 교량 건설현장의 공종별 유해 위험요인을 세부공종별 요소작업에 따라 분류하고, 재해 발생정도와 피해정도에 따른 위험도가 평가되어야 한다. 이러한 교량 건설공사의 재해를 줄이는데 기여할 수 있도록 정량화된 교량공사 위험지수를 제시함으로써 체계적이고 효율적인 재해예방 활동에 필요한 기초자료를 제공할 것이다. 특히 교량공사 시공 상의 제반 위험요인을 사전에 점검하여 변경 보완 제거할 수 있는 재해 예방대책을 수립하여 재해를 최소화하는 연구가 필요하게 되었다. 건설현장에서 위험지수의 고저에 따라 자원을 적정하게 배분한다면 안전관리의 효율성이 제고되고, 궁극적으로 건설재해 감소에 기여하게 될 것으로 기대된다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.251-253
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• 2015

선박에 의한 위험물 운송의 증가로 제정된 IMDG Code를 제정하고, 선원들은 그 규정에 따라 업무를 수행하고 있으며 몇 차례 개정이 되면서 위험물 안전운송 전문교육을 의무화하고 있다. 하지만 해마다 위험물에 의한 선박화재 및 폭발사고는 계속 일어나고 있으며, 이것은 위험물에 대한 기본 정보와 규정만 있으나 위험화물에 대한 자체 반응경로나 왜 규정대로 해야 하는지에 대한 정보가 선원들에게는 부족하다는 것을 알 수 있었다. 그리하여 최근에 발생한 선박화재 및 폭발사고 사례를 조사해보고, 적재된 화학물질 에 대한 기본정보를 분석하고 화재가 일어날 수 있는 가능성에 대해 화학적으로 접근 해석해 보았다. 화재의 원인은 다양하지만 기상 실험을 할 수 없는 어려움이 있어, 적재된 위험물의 정보와 대표적인 반응을 알아보고 화재원인을 가정해 보았다. 선원들은 IMDG Code에 대한 규정 이외에도 이러한 기본정보와 반응경로에 이해를 한다면 위험화물의 운송에 있어 위험한 환경요소를 제거할 수 있어 화재 및 폭발사고를 예방 할 수 있다.

• Korean Chemical Engineering Research
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• v.56 no.3
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• pp.335-342
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• 2018

Various technologies to cope with the energy and environmental issues related to the chemical and electric power industry are in development and demonstration stage. Especially, the absorption process of carbon dioxide ($CO_2$) using amine solution is a key technology of the $CO_2$ capture and storage (CCS). In this study, we identify the major risk factors and suggest strategies for safety improvement by analyzing and assessing commercial the amine-based $CO_2$ separation process. HAZOP method was used to assess the risk for the process. We provide facilities and operational strategies to mitigate or eliminate major risk factors by assessing the relative ranks of identified risk factors using a risk matrix.