• Title/Summary/Keyword: uncertainty management

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Application of Indicator Geostatistics for Probabilistic Uncertainty and Risk Analyses of Geochemical Data (지화학 자료의 확률론적 불확실성 및 위험성 분석을 위한 지시자 지구통계학의 응용)

  • Park, No-Wook
    • Journal of the Korean earth science society
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    • v.31 no.4
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    • pp.301-312
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    • 2010
  • Geochemical data have been regarded as one of the important environmental variables in the environmental management. Since they are often sampled at sparse locations, it is important not only to predict attribute values at unsampled locations, but also to assess the uncertainty attached to the prediction for further analysis. The main objective of this paper is to exemplify how indicator geostatistics can be effectively applied to geochemical data processing for providing decision-supporting information as well as spatial distribution of the geochemical data. A whole geostatistical analysis framework, which includes probabilistic uncertainty modeling, classification and risk analysis, was illustrated through a case study of cadmium mapping. A conditional cumulative distribution function (ccdf) was first modeled by indicator kriging, and then e-type estimates and conditional variance were computed for spatial distribution of cadmium and quantitative uncertainty measures, respectively. Two different classification criteria such as a probability thresholding and an attribute thresholding were applied to delineate contaminated and safe areas. Finally, additional sampling locations were extracted from the coefficient of variation that accounts for both the conditional variance and the difference between attribute values and thresholding values. It is suggested that the indicator geostatistical framework illustrated in this study be a useful tool for analyzing any environmental variables including geochemical data for decision-making in the presence of uncertainty.

The Effects of Perceived Uncertainty on Service Satisfaction in the Chinese Commercial Banking Industry -Focus on Service Quality and Relationship Quality (중국의 상업은행산업에서 지각된 불확실성이 서비스만족에 미치는 영향: 서비스품질 및 관계품질을 중심으로)

  • Zhao, Na;Shim, Jong Seop
    • Asia-Pacific Journal of Business
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    • v.1 no.2
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    • pp.83-106
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    • 2010
  • The purpose of this study is to examine how perceived service quality influences perceived uncertainty, customer satisfaction, relation quality and loyalty, and in turn, provides insight for Korean banks when they penetrate into the Chinese marketplace. The findings are as followed. First, Perceived uncertainty has an important mediating role in the relation between perceived service quality and customer satisfaction. Second, perceived service quality has a direct effect on customer satisfaction, customer satisfaction has an important mediating role in the relationship between perceived service quality and relationship quality. Third, perceived uncertainty has a direct effect on customer satisfaction, but is significantly negative. Customer satisfaction has an important mediating role in the relationship between perceived uncertainty and relationship quality. Fourth, relationship quality has a direct effect on attitudinal loyalty and behavioral loyalty.

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The Cultural Impacts on Establishing Potential Entrepreneurship: A Comparative Study on Cases of University Students in Cambodia, Mongolia, Nepal, Peru and Rwanda (잠재적 기업가정신에 대한 문화의 영향: 캄보디아, 몽골, 네팔, 페루 및 르완다 대학생 사례 비교 연구)

  • Ahn, Jinwon;Yoo, Daehyun
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.12 no.4
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    • pp.97-108
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    • 2017
  • The main purpose of this comparative study is to analyze the impact of uncertainty avoidance on the potential entrepreneurship of five developing countries through results of survey implemented to under- and postgraduate students of five developing countries such as Cambodia, Mongolia, Nepal, Peru and Rwanda. Futhermore, it is another purpose to compare the results of respondents by gender and scrutinize what impacts of the uncertainty avoidance have on male and female students' entrepreneurial orientation. First of all, the survey was conducted to under- and postgraduate students of five countries. Questions of the survey were composed of three parts: Locus of Control and Innovativeness for the individual entrepreneurial orientation and Uncertainty Avoidance for the cultural variable. The result of this study shows that the variable of entrepreneurial orientation is getting higher when Uncertainty Avoidance variable is becoming higher. On top of that, this is shown even in the gender comparison. It is the totally different result from precedent studies that shows correlation of entrepreneurship and culture. On the other hand, men's entrepreneurial orientation of five countries higher than women's according to the gender comparison.

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A Quality Management Model Contingent to R&D Characteristics (연구개발 특성을 고려한 품질경영 모형)

  • Yoon, JaeWook
    • Journal of Korean Institute of Industrial Engineers
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    • v.43 no.2
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    • pp.90-99
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    • 2017
  • As the importance of R&D has increased, there have been various efforts to apply the quality management principles and tools to R&D activities in order to manage them effectively. The R&D sector differs from other value chains, so it may be difficult to apply quality management without proper considerations of R&D characteristics. This study describes the characteristics of R&D as high uncertainty and risk, diversity of R&D types, project-based activities, importance of strategic goals and business models, and importance of intangible assets. Three well accepted R&D quality management models are reviewed and implications for quality management and R&D characteristics are summarized. Based on these findings, the management targets of R&D quality management are classified into management level (organization, project) and management focus (process, output), and the contexts of R&D quality management are classified into R&D type (research, development) and market/customer requirement clarity (fluid, specific), and appropriate R&D quality management activities in each situations have been suggested.

Risk Management Software Utilization in the Singapore Construction Industry: Evaluation and Improvement

  • Hwang, Bon-Gang;Chua, Pee Mee
    • Journal of Construction Engineering and Project Management
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    • v.1 no.2
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    • pp.28-36
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    • 2011
  • Risk management is popularly and widely used in various industries to handle uncertainty that can negatively affect their businesses. While in the current Information-Technology oriented age, software packages are designed to assist in carrying out risk management processes, the construction industry does not seem to have software that is tuned to its specific characteristics and processes. Therefore, this study first explores the types of software that are commonly used for risk management in the Singapore construction industry. Also, using one-sample t-test, it is tested if the software programs used in the construction industry have effectively catered the needs of the users. For the analysis, a survey questionnaire was developed and the representatives from 34 companies participated in the survey. Furthermore, this study also makes use of the current risk management framework defined in ISO31000 to design a risk management software algorithm that can suit the needs for the Singapore construction industry. The results from this study will contribute to identifying strategic areas, in terms of use of risk management software, on which the industry needs to focus, ultimately enhancing their performance of risk management.

Crisis Management System in Hospitals (병원의 위기관리 시스템)

  • Kim, Hyeongjin
    • Korea Journal of Hospital Management
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    • no.spc
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    • pp.85-95
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    • 2016
  • This study is to introduce a comprehensive framework of a crisis management system developed at a prominent hospital in South Korea. Throughout recent decades, especially in the recent years, the way in which to cope with both internal and external challenges has been one of the most critical issues. Since the incident management system in the U.S. is acknowledged as the most advanced crisis management model in the world, a portion of this study refers to the Hospital Incident Command System(HICS) provided by the California Emergency Medical Services Authority(EMSA). Nevertheless, the framework suggested in this article was designed based on a distinctive Korean hospital setting. The main contents of this study are as follows; categorization of each type of crisis, organization of a crisis management team in a non-crisis or crisis state, crisis assessment by life cycle stage, and establishment of crisis management protocol. Even though many types of crises are unspecified, those can be categorized into external crisis, medical crisis, and utility & activity failure. A crisis management organization should be operated and consisted differently- depending on a crisis or non-crisis situation. From a life-cycle perspective, the range by which the crisis should be managed extends from pre-stage to post-stage of the crisis. It is important to set proper scenarios and manuals by crisis type to develop a crisis management framework of high quality. With continuous efforts, hospitals can prepare for the uncertainty to better concentrate on core business operations.

A study on the difference in management performance according to the quality management system introduction level of small and medium-sized manufacturing companies (중소제조기업의 품질경영시스템 도입 수준에 따른 경영성과 차이 연구)

  • Lee, JuYong;Joo, HyungKun
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.18 no.2
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    • pp.61-75
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    • 2022
  • The purpose of this study is to analyze the impact of quality management system requirements, a management innovation technique, on business performance to secure the competitiveness of SMEs in an environment of increasing uncertainty in the global economy and intensifying competition. To this end, a survey was conducted on small and medium-sized enterprises (SMEs) operating a quality management system, and statistical analysis was performed through validity and reliability analysis, regression analysis, and group analysis using IBM SPSS 26.0. As a result of the study, it was found that planning, operation, support, and improvement, which are the core requirements of a quality management system, have a positive effect on business performance. In addition, through group analysis, it was found that the effect of quality management system requirements on business performance varies according to the level of the company. This means that the importance of quality management requirements required for strategy establishment varies according to the quality management introduction level of small and medium-sized manufacturers, and it can be used for small and medium-sized manufacturers to set strategic directions.

A Study on Standard Process of Risk Management for Defense Systems Test Works (무기체계 시험업무에 대한 리스크 관리 표준 프로세스 연구)

  • Taeheum Na;Dongeun Heo;Youngmin Kim;Jooyeoun Lee
    • Journal of the Korea Institute of Military Science and Technology
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    • v.27 no.3
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    • pp.364-374
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    • 2024
  • Today, risks created by uncertainty must be managed for successful project execution. From this perspective, applying a risk management process is very important for successful defense systems test works. This paper describes 'the implentation of risk management process for test work' carried out by DTERI's process improvement activities. In this study, the concept of risk management process, and details of the risk management process are examined through PMBOK and ISO/IEC/IEEE 15288, CMMI. After that, we defined 'Standard Process for Risk Management' of defence systems test works. And, we describe 'Risk Management Function' of DTERI's Project Management System(PMS) and the risk management process of DTERI. Finally, the effectiveness of the risk management standard process is verified through quantitative analysis.

A Study on Risk Management of Bill of Lading in International Trade Transaction (국제무역거래에서 선하증권의 위험관리에 관한연구)

  • Han, Nak-Hyun
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.37
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    • pp.187-216
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    • 2008
  • Risk regarding the possibility of loss can be especially problematic. If a loss is certain to occur, it may be planned for in advance and treated as a definite, known expense. It is when there is uncertainty about the occurrence of a loss that risk becomes an important problem. The word risk is often used in connection with insurance. No one generally accepted definition of risk exists, however. Of the many definitions, two distinctive ones are commonly used. One defines risk as the variation in possible outcomes of an event based on chance. That is, the greater the number of different outcomes that may occur, the greater the risk. Another way of expressing this concept is to state: The greater the variation around an average expected loss, the greater the risk. The second definition of risk is the uncertainty concerning a possible loss. The definition of risk as a useful one because it focuses attention on the degree of risk in given situations. The degree of risk is a measure of the accuracy with which the outcome of an event based on chance can be predicted. For now, it will serve our purpose to note the more accurate the prediction of the outcome of an event based on chance, the lower the degree of risk. After sources of risks are identified and measured, a decision can be made as to how the risk should be handled. A pure risk that is not identified does not disappear, the business merely loses the opportunity to consciously decide on the best technique for dealing with that risk. The process used to systematically manage risk exposures is known as risk management. Some persons use the term risk management only in connection with businesses, and often the term refers only to the management of pure risks. In this sense, the traditional risk management goal has been to minimize the cost of pure risk to the company. But as firms broaden the ways that they view and manage many different types of risk, the need for new terminology has become apparent. The terms integrated risk management and enterprise risk management reflect the intent to manage all forms of risk, regardless of type. International trade transaction is called between countries has features of globalism, cultural gap, long distance and long terms for the transaction. It is riskier than domestic transaction has its specific risks, such as foreign exchange risk and political risk, and requires various active risk management skills. Risks in relation to the international trade transaction are the contract risk, transit risk and payment risk, etc. The risk management in relation to the international trade transaction is to identify and measure these risks. The purpose of this study is to analyse the practical problems and its solution plan by analyzing various cases related to the risk management of bill of lading in the international trade transaction.

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Improvements in the Business Process Model for the Aged Apartment Remodeling Project - In Case of the Number of Units Increased - (노후 공동주택 세대수 증가형 리모델링의 사업프로세스 개선)

  • Kim, Kyungrai;Yoon, Youngho;Kim, Chunhag
    • Korean Journal of Construction Engineering and Management
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    • v.17 no.5
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    • pp.45-53
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    • 2016
  • As the number of units increased by vertical extension is recently allowed according to the Housing Law, the aged apartment remodeling projects using the same allowed method are pursued in several apartment complex located in Bundang and Pyungchon. However, progress of the projects is not advanced due to uncertainty of the process. Therefore, the purpose of this study is to improve a business process model for the aged apartment remodeling in case of the number of units are increased for the remodeling union to pursue the remodeling project easily. In order to improve the process model, requirements for the Housing Act are analyzed, the existing process model is developed based upon the requirements, uncertainty of the existing process is examined and a to be process model is proposed to eliminate the uncertainty. Many architects and engineers are consulted to discuss the uncertainty and process model. This model will help the Government to reform the Housing Act and remodeling unions to pursue the aged apartment remodeling.