• Title/Summary/Keyword: Factors of failure

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Various Perspectives on the Concept of Failure and its Implication in Engineering Education (실패에 관한 다양한 관점과 공학교육에서의 함의)

  • Han, Kyonghee;Yun, Ilgu;Lee, Kangtaek;Kim, Taeyeon
    • Journal of Engineering Education Research
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    • v.17 no.6
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    • pp.12-19
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    • 2014
  • Failure is an important part of engineering practice. Engineers utilize all of their competences and resources in order for their products or processes to meet the initial intention and purpose, and not to fail. However, the technological products sometimes end up with failure. The failure, in many cases, is related to non-technological factors or systems, not just limited to technological factors. Moreover, the evaluation of failure is performed by a variety of agents, including consumers, civic groups, government as well as professional groups. Thus, this study raises an issue that the existing concept of failure, which focuses on the operation of function, is not sufficient enough to properly cover the success or failure of technology required by the modern society. In the recent trends of engineering, new concepts and methods have been developed by expanding the traditional concept or introducing a new perspective of failure, so that engineering failure can be better understood in the mutual relationship between technology and society. This research attempts to suggest a methodology of how the failure of engineering can be utilized and properly combined in the major education, design education and engineering ethics education. Also, it aims to contribute to the quality improvement of engineering education to train engineers who can lead the society with responsibility as well as professional competence.

The Effects of Fear of Failure Factors Affecting Entrepreneurial Intentions of Startup Business Candidate (예비창업자의 실패에 대한 두려움이 창업의도에 미치는 영향)

  • Kim, Soojin;Han, Jungwha;Lee, Sangmyung
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.11 no.3
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    • pp.49-61
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    • 2016
  • This study investigates the relationship between fear of failure of potential entrepreneur's psychological characteristics and entrepreneurial intentions using the mediation variables of planned behavior model. There are many existing prior research related to the entrepreneurial intentions, but they were mostly focused only entrepreneurial success factors. So in this study we focused on fear of failure of potential entrepreneur. To know the influence of the fear of failure related to entrepreneurial intention, we using the scale of PFAI (Performances Failure Appraisal Inventory). The purpose of this study is to examine an impact of fear of failure on entrepreneurial intention and add to mediating factors - attitude toward the acts, subjective norm, perceived behavior control - on the relationship between fear of failure and entrepreneurial intention. Also we examined entrepreneurial education as moderating effect in order to offset the fear of failure. In order to test research model, we collected data from 321 undergraduate students. To test the research questions and hypotheses, we employed SPSS 21.0 anf AMOS 18.0 for validity, reliability, confirmatory factor analysis, and structural model analysis. The results were as follows. First, the fear of failure negatively related to attitude toward the behavior and subjective norm. Second, attitude toward the behavior and subjective norm positively related to entrepreneurial intention in consistent with previous studies. Third, attitude toward the acts and subjective norm in TPB variables have full-mediation effects between fear of failure and intrepreneurial intention. Fourth, The moderating effects of entrepreneurial effect was not significant. The negative relationship between fear of failure and attitude toward the acts and subjective norm was even slightly stronger who have taken the entrepreneurial class group. We discuss the theoretical and managerial implications, and provide suggestions for future research.

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SENSITIVITY ANALYSIS IN FUZZY RELIABILITY ANALYSISA

  • Onisawa, Takehisa
    • 제어로봇시스템학회:학술대회논문집
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    • 1988.10b
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    • pp.764-769
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    • 1988
  • In this paper the failure possibility and the error possibility are used to represent reliability of a technical component and that of a human operator, respectively. The failure possibility and the error possibility are fuzzy sets on the interval [0,1]. In a man-machine system, reliability of the technical component and that of the human operator are usually affected by many factors, e.g., the environment in which a machine is operated, psychological stress of the human operator, etc. The possibility is derived from not only the failure or the error rate but also estimates of these factors. The fuzzy reasoning plays an important role in the derivation. The reliability analysis is performed by the use of the possibility obtained by the present method. Moreover this paper discusses the sensitivity analysis which evaluates what extent the change of the estimation of each factor has an influence on reliability of a man-machine system. The important factors to be ameliorated are shown through the sensitivity analysis.

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Reliability Equivalence Factors of Non-identical Components Series System with Mixture Failure Rates

  • Mustafa, A.;El-Desouky, B.S.;El-Dawoody, M.
    • International Journal of Reliability and Applications
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    • v.10 no.1
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    • pp.17-32
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    • 2009
  • The aim of this work is to generalize reliability equivalence technique to apply it to a system consists of n independent and non-identical components connected in series system, that have mixing constant failure rates. We shall improve the system by using some reliability techniques: (i) reducing some failure rates; (ii) add hot reduncy components; (iii) add cold reduncy components; (iv) add cold reduncy components with imperfect switches. We start by establishing two different types of reliability equivalence factors, the survival equivalence (SRE), and mean reliability equivalence (MRE) factors. Also, we introduced some numerical results.

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The Role of Human Factors in Expert System (전문가시스템 개발에 있어서의 인간공학의 역할)

  • 서창교
    • The Journal of Information Systems
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    • v.1
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    • pp.95-109
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    • 1992
  • A number of success story about various application areas including manufacturing, accounting, finance, education, and engineering are reported. MIS professionals predicted that expert systems would improve the productivity enormously. However, the expert system revolution has not happened yet. Although not reported in the open society widely, there are failure stories of expert systems. Most of problems concerning expert system failure stem from the non-technical issues such as cognitive and psychological problems rather than the technical issues. We hypothesize that human factor principle enables designers to handle most of these non-technical problems elegantly and to improve the performance and acceptance of the expert systems. Major reasons for expert system failure and needs of human factors are discussed. Human factor guidelines to expert system make the prospects of the expert systems with human factors clear and understandable.

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Development of Measurement Tools for Success and Failure Factors of Education and Training of Korean Bodyguard

  • Kim, Sang-Jin
    • Journal of the Korea Society of Computer and Information
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    • v.25 no.6
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    • pp.199-206
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    • 2020
  • This study was conducted for the purpose of developing a measurement tool for success and failure factors of education and training of Korean bodyguards. conducted a meeting from the fully open questionnaire at first, and then formed the semi-structured questionnaire, finally carried out the survey from the closed questionnaire and analyzed data from SPSS 21.0, AMOS 21.0 and developed the measurements. It was conducted from May, 2019 to December, 2019. This survey was conducted of 150 security guards after the verification of the content validity though the pilot survey and presented the success attribution factors and standards on the basis of the result form this survey. As a result, the success factors of the training of the bodyguards were accidental education (5 item), vocational mental education (2 item), vocational mental education (2 item), work ability enhancement education (2 item), realistic practical education (2 item) ), Including 4 items, 11 items, The failure factors consisted of 12 item of three factors: formal education and training (5 item), lack of leadership qualities (4 item), and lack of education (3 item).

Assessment of Factors affecting Rock-Slope Failure using Artificial Neural Network (인공신경망을 활용한 암반사면 붕괴유발인자 평가)

  • Song, Young-Karb;Park, Dug-Keun;Son, Young-Jin
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.759-763
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    • 2010
  • Currently available evaluation checklists are developed for specific purposed using different parameters and items determined by different weighting factors. Those items with different weighting are sometimes said that they are based on the engineering judgement and leap of faith and, therefore, there is a limitation to adapt those checklists for slope-stability evaluation in the field. This study reviews factors affecting Rock-slope stability, analyze the relationship between those factors and slope failures using artificial neural network, and proposed a slope-stability evaluation model for adequate weighting for the factors.

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Assessment of Factors affecting Steep-slope Failure using Artificial Neural Network (인공신경망을 활용한 급경사지 붕괴유발인자 평가)

  • Song, Young-Karb;Oh, Jeong-Rim;Park, Dug-Keun;Son, Young-Jin
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.03a
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    • pp.1342-1348
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    • 2010
  • Currently available evaluation checklists are developed for specific purposed using different parameters and items determined by different weighting factors. Those items with different weighting are sometimes said that they are based on the engineering judgement and leap of faith and, therefore, there is a limitation to adapt those checklists for slope-stability evaluation in the field. This study reviews factors affecting slope stability, analyze the relationship between those factors and slope failures using artificial neural network, and proposed a slope-stability evaluation model for adequate weighting for the factors.

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THE CAUSES OF BAD PROFIT IN OVERSEAS CONSTRUCTION PROJECTS

  • Seung Heon Han;Du Yon Kim;Sang Hyuk Park
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.1237-1243
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    • 2005
  • International construction projects are exposed to various and complicated risk factors stemming from different political, economical, social, and cultural backgrounds, which make contractors entering into international construction to experience severe losses. It implies that overseas markets do not necessarily secure the high return, which is typically expected to in the high risky attempts. Accordingly, contractors need to evaluate various risk factors faced with overseas construction projects that can possibly aggravate the profitability. This paper aims at establishing a valid groundwork for further research on developing the integrated risk management model. For this end, it analyzes the long-term trend of profitability on total of 3,487 projects performed by Korean global contractors in world-wide construction markets during the last four decades. Then, it investigates the possible factors/causes of bad profit that have affected the profitability significantly through the structured surveys of 90 real overseas projects based on the project-specific information and experiences of Korean contractors in overseas markets. Furthermore, it analyzes relative importance of these factors/causes and identifies the important features expected for the risk management of international construction projects. Finally, vital distinctions between success and failure projects and lessons learned to improve profitability are then distilled.

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A Study on the Influence of Delivery App Service Failure Factors on Consumer Conflict and Consumer Complaint Behavior (배달앱 서비스 실패요인이 소비자 갈등과 소비자의 불평행동에 미치는 영향에 관한 연구)

  • Lee, Jae-Hak
    • Journal of Arbitration Studies
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    • v.31 no.1
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    • pp.173-194
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    • 2021
  • This study was conducted to investigate the effect of the factors of delivery app service failure on consumption well conflict emotion and complaining behavior targeting consumers with experience using delivery apps, and the results of the study are summarized as follows. First, when looking at the demographic analysis, the proportion of men was 58.1% and women were 41.9%, and the age group was the highest with 91.9% in their 20s. Second, as a result of testing hypothesis 1 that the factor of delivery app service failure will have a significant influence on consumer conflict emotions, failure to provide app information and failure to deliver/food service showed a significant positive (+) relationship. Third, as a result of the verification of Hypothesis 2, that consumer conflict emotions will have a significant effect on the consumer's continued use intention, it was found to be insignificant and rejected. Lastly, hypothesis 3 that consumer conflict emotions will have a significant effect on consumer complaints behavior is that negative word of mouth behavior, complaint behavior from service providers, and complaint behavior from service managers were adopted, but the complaint behavior was rejected by third parties.