• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.901-904
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• 2008

The purpose of this study is to identify the risk factors, analyze the risk factors and make a risk check list of survey in road construction. Generally. the risk management is consisted of 3 steps: risk identification, Risk analysis, Risk hedge. This study is focused on the identification of risk and analysis of risk. To identify the risk factors of survey, we used the specifications of road construction, law of survey, and check list of road construction. This study provides the risk check list of survey for road construction. This research was undertaken to analyze risk factors being determine by the FGI(Focus Group Interview) method with survey specialists.

• Korean Journal of Construction Engineering and Management
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• v.16 no.1
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• pp.15-23
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• 2015

In the construction industry, risk management has gained constant attention as the factor not only to evaluate global competitiveness of the country but also to secure competitiveness of public institutions and private companies. For effective construction risk management, the specific work process improvement that can be employed in the field in terms of risk management of the entire corporation such as financial, insurance and safety management is necessary. To manage construction risks, what is important is the step to identifying inherent risks in the construction project. The identification of risks will be followed by the step to seeking ways to establish and manage strategies responding to the risks. This study suggests ways and processes to make a checkslit to identify risks through case studies. To that end, the focus will be placed on working process improvement of risk identification among stages to manage construction risks such as risk identification and analyses, planning to respond to risks, risk monitoring and management. The case study checklists show that setting up the system to classify risks by stage is helpful to figure out causes of risks to reduce or eliminate risk factors. The checklist making process that considers features of the project is expected to contribute to successful completion of the project by enabling effective risk identification and systematic risk management.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.1027-1030
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• 2010

소프트웨어 테스팅에서 리스크 기반 테스팅은 리스크 식별, 리스크 분석, 리스크 계획, 리스크 추적의 4 단계로 전개되며, 특히 마지막 단계인 리스크 추적 단계에서는 식별된 리스크가 테스팅 진행과정을 거치면서 어느 정도 완화되었는지를 확인하고 현재의 리스크 완화 정도에 따라 적절하게 대응하는지를 모니터링 해야 하는 중요한 단계이다. 하지만 리스크 추적 단계에서 필요한 리스크 완화 수치가 정의되지 않아 사용자들은 테스트 실행율 또는 결함 해결율 등을 리스크 완화 수치의 대안으로 사용하고 있다. 본 논문에서는 리스크 추적 단계에서 사용할 수 있는, 리스크의 완화 정도를 수치화한 "리스크 해결 지수"의 산출 과정을 수식과 함께 제시하고 그 의미를 설명하였다. 그리고 예시를 통해 리스크 수치화에 대한 이해를 돕고, 리스크 수치화 관련 차트를 몇 가지 제시하여 실무에의 응용 통찰력을 제공한다. 리스크를 수치화한 "리스크 지수"는 테스팅 조직의 의사결정에 활용할 수 있는 객관적이고 설득력있는 정보로서 프로젝트 전반에 걸쳐 그 활용 가치가 높다.

• Korean Journal of Construction Engineering and Management
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• v.5 no.2 s.18
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• pp.115-122
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• 2004

This study identifies various risk factors associated with activities of early construction stage, then establishes the Risk Breakdown Structure(RBS) by classifying the risks into the three groups; Common risks, risks for Earth works, and risks for Foundation works. The Common risks are identified and classified by considering various aspects of the early construction stage such as financial, political, constructional aspects, etc. The risks for Earth works and Foundation works are identified in detail by surveying technical specifications, relevant claim cases and interviewing with experts. These risks are classified based on the Wok Breakdown Structure(WBS) of the early construction stage. The WBS presented in this study classifies the works of early construction stage into four categories; excavation, sheeting works, foundation works, footing works. This study suggests a risk analysis method using fuzzy theory for construction projects. Construction risks are generally evaluated as vague linguistic value by subjective decision making. Fuzzy theory is a proper method to quantify vague conditions of construction activities. Therefore, this study utilizes fuzzy theory to analyse construction risks. The weight of risks is estimated by reflecting the interrelationship among risk factors from absolute weights obtained by fuzzy measure into the relative weights by Analytical Hierarchy Process(AHP). The interrelationship is estimated by Sugeno-fuzzy measure.

• Journal of Korean Society of societal Security
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• v.1 no.4
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• pp.33-40
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• 2008

Personal information security has been as risk ever since the development of information technology increased its internet use. As personal information security is compromised there will be a rise in personal privacy conflicts and this will become an important social issue. The following research is a presentation of the warning map for risk monitoring on personal information security. First, the personal information security process is identified then defined. Second, in order to achieve the personal information security's objective, a survey was taken and the data was collected. Third, factor in the Fishbone Diagram's analysis and figure out the key indicators that include metric and threshold. Last, develop the warning map which has the matrix table composed of the process and the risk. It displays the warning based on the threshold and the value of key indicators related to risks.

• Korean Journal of Construction Engineering and Management
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• v.25 no.1
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• pp.32-41
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• 2024

In the construction industry, not only safety accidents, but also various complex risks such as construction delays, cost increases, and environmental pollution occur, and management technologies are needed to solve them. Among them, process risk management, which directly affects the project, lacks related information compared to its importance. This study tried to develop a MATM tunnel process risk classification system to solve the difficulty of risk information retrieval due to the use of different classification systems for each project. Risk collection used existing literature review and experience mining techniques, and DB construction utilized the concept of natural language processing. For the structure of the classification system, the existing WBS structure was adopted in consideration of compatibility of data, and an RBS linked to the work species of the WBS was established. As a result of the research, a risk classification system was completed that easily identifies risks by work type and intuitively reveals risk characteristics and risk factors linked to risks. As a result of verifying the usability of the established classification system, it was found that the classification system was effective as risks and risk factors for each work type were easily identified by user input of keywords. Through this study, it is expected to contribute to preventing an increase in cost and construction period by identifying risks according to work types in advance when planning and designing NATM tunnels and establishing countermeasures suitable for those factors.

• Korean Journal of Construction Engineering and Management
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• v.5 no.2 s.18
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• pp.136-143
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• 2004

This study presents a risk management methodology using fuzzy theory for early construction stage and is focused on risk identification and risk analysis. This study identifies various risk factors associated with activities clearly construction stage, then establishes the Risk Breakdown Structure(RBS) by classifying the risks into the three groups; Common risks, risks for Earth works, and risks for Foundation works. The risk analysis method presented in this study is based on the RBS that has two levels such as upper level and lower level. The risk exposure of lower level risk factors is assessed by fuzzy inference. The weight of risks is estimated by fuzzy measure. Then, the estimated risk exposures and weights are aggregated to assess the risk exposure of upper level risks by Choquet fuzzy integral. The risk exposure of upper level risks determine the priority of risk factors in view of risk management. This study performs case study to validate the proposed method. The result of case study shows that the methodology suggested in this thesis would be utilized well in evaluating risk exposure.

• Korean Journal of Construction Engineering and Management
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• v.12 no.4
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• pp.139-148
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• 2011

u-City projects are different with the existing urban development projects progress via convergence with IT technology. Therefore, it inheres many risk factors more than the existing development projects as including more complexity and variety. The risk management system to systematically manage those risks which get identified and quantified is required. Especially, the planning phase that is appeared the various forms has a large effect on the success of the business. However, the management of risk factors remains in the passive form. So the problems on u-City project in the planning phase and risk factors of existing development business were analyzed for the continuous growth and the successful performance of u-City project, and those risk factors was identified and quantified by using statistical technique. In the results of it, the core risk factors were obtained through which way and the basis for the effective risk management in u-City business is provided.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.392-393
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• 2022

선박에 IT/OT가 도입되면서 사이버 위협이 증가하고 있습니다. 선박에서의 사이버 리스크 관리를 위해 현존하는 선박 내 사이버자산을 식별하고, 노출된 사이버 위협을 인지하고, 사이버 리스크 평가를 통한 대응방안을 이론적, 사례적으로 분석한 내용을 공유합니다.

• Journal of Korean Tunnelling and Underground Space Association
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• v.22 no.2
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• pp.155-170
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• 2020

In this paper, a risk management system applicable to NATM tunneling projects is proposed. After investigating case histories in NATM tunnel collapse, this paper analyzes the potential risk factors and their corresponding risk events during NATM tunnel construction. The risk factors are categorized into three groups: geological, design and construction risk factors. The risk events are also categorized into four types: excessive deformation, excessive deformation with subsidence, collapse inside tunnels, and collapse inside tunnels with subsidence. The paper identifies risk scenarios in consideration of the risk factors and proposes a risk analysis/evaluation method for the NATM tunnel risk scenarios. Based on the evaluation results, the optimal mitigation measure to handle the risk events is suggested. In order to effectively facilitate a series of risk management processes, it is necessary to develop a risk register and a management ledger for risk mitigation measures that are customized to NATM tunnels. Lastly, the risk management for an actual NATM tunnel construction site is performed to verify the validity of the proposed system.