• Industrial Engineering and Management Systems
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• 제4권2호
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• pp.176-183
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• 2005

The theory of signal detection has been applied to a wide range of practical situation for a long time, including sonar detection, air traffic control and so on. In general, in this theory, sensitivity parametric index d' and bias parametric index $\beta$ are used to evaluated the performance of vigilance. These indices use observer's response "hit" and "false alarm" to explain and evaluate vigilance, but not considering reaction time. However, the reaction time of detecting should be considered in measuring vigilance in some supervisory tasks such as unlimited monitoring tasks (e.g., supervisors in nuclear plant). There are some researchers have used the segments of reaction time to generate a pair of probabilities of hit and false alarm probabilities and plot the receiver operating characteristic curve. The purpose of this study was to develop a quantitative vigilance-measuring model by fuzzy sets, which combined the concepts of hit, false alarm and reaction time. The model extends two-values logic to multi-values logic by membership functions of fuzzy sets. A simulated experiment of monitoring task in nuclear plant was carried out. Results indicated that the new vigilance-measuring model is more efficient than traditional indices; the characteristics of vigilance would be realized more clearly in unlimited monitoring task.

• 한국IT서비스학회지
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• 제14권4호
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• pp.137-157
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• 2015

The development of Social Network Service (SNS) has brought many positive changes to the ways people communicate, interact and share information. However, using the SNS does not always leads to in a positive results, particularly when it is addictively used. In fact, the addictive use of SNS results in many negative effects in our society. Recently, SNS users feel negative emotions such as expecially stress and fatigue while using SNS. Thus, the purpose of this study is to empirically examine antecedents of user fatigue on SNS, which can be explained by the degree of Individual, environment and SNS characteristics. This study also examines consequences of user fatigue on SNS. Lastly, we examine the moderating effects of Habit among SNS fatigue, barrier of living and task performance decline. The data for empirical analysis were collected 401 responses on SNS users in Korea. The results of this study are as follows; First, reputation perception, loneliness, unwanted relation, privacy concern, information overload, social presence and interaction are significantly related to SNS fatigue. Second, SNS fatigue, barrier of living and Task performance decline are significantly related to discontinuous usage intention. Third, the moderating effect of Habit of SNS using is found in the relationship among SNS fatigue, barrier of living and task performance decline. Based on the results of this study, Theoretical and practical suggestions were discussed.

• International Journal of Advanced Culture Technology
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• 제10권4호
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• pp.383-388
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• 2022

This thesis explores the principle of a performer's organic action by means of his/her bodily responses on stage. This research has been developed to define the nature of a performer's central task in order to constitute empirical understanding of acting and the purpose of training in addressing the question of what sort of qualitative bodily training is necessary to be in a state of the full body involvement. This study investigates to articulate a performer's fundamental task at the most rudimentary level by utilizing those theatre artists' concepts with practical assumptions. In particular, the key terms, happen and change signifies the quality of a performer's body that has to fit into the given environment in which the performer's body can be subordinated through the moment on stage. Here, we argue that a performer's essential task parallel to make the following moment to happen and change by means of progressing a set of the next moment. In this manner, we also argue that a moment of displaying the performer's conscious effort, forceful and externalizing the visible elements under the use of erroneous language leads his/her body not to function on stage, a state of disengagement from his/her body. Finally, we provide a way to facilitate a performer's organic action by focused on his/her lived experience to create the functional moment which is opposite to the predominance of a representation, maintaining the performer's intellectual sense.

• 아태비즈니스연구
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• 제15권1호
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• pp.113-129
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• 2024

Purpose - This study aims to empirically identify the quantitative effects of work from home (WFH) on employee productivity using field data. Design/methodology/approach - Based on large-scale field data from a South Korean company which introduced the WFH arrangement in 2020, we conducted fixed effect and moderating effect analyses using individual-level panel data over sixty-three weeks. Findings - The empirical analysis generated several findings. It was found that overall, WFH has a positive effect on productivity. However, the productivity impact of WFH was found to vary depending on task characteristics. Specifically, WFH led to over 20% increase in productivity for simple and repetitive tasks. On the other hand, no significant productivity impact was observed for professional and knowledge-based tasks. Research implications or Originality - As the first study based on field data from South Korea, this study offers convincing causal evidence of the moderating impact of task characteristics on the relationship between WFH and productivity. Further, the above findings provide managers with practical insights concerning their work arrangement decisions.

• 경영정보학연구
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• 제13권3호
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• pp.165-183
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• 2011

IT 조직은 비즈니스 및 기술의 변화에 대응하기 위해 끊임없이 변화를 요구받고 있으나, 이러한 변화 수용을 위한 IT 조직 재설계에 관한 현실적인 방법론이나 가이드라인은 부족한 실정이다. 이에 본 연구에서는 최근 IT 조직을 근본적으로 재설계한 K공사 사례를 중심으로 하여 IT 조직의 재설계 방법 및 절차에 대해 살펴보았다. 본 연구의 사례 대상기업인 K공사에서는 IT 조직 재설계를 위해 직무분석을 통한 IT 조직의 To-Be 모형을 설계하였으며, 이를 바탕으로 직무 재설계를 실시하여, K공사의 IT 조직 및 인원을 산정하였다. 1) 직무분석에서는 핵심업무를 도출하여 96개의 표준 업무(Task)를 도출하였고 2) To-Be 조직 설계를 통해 IT 지원팀, IT 개발팀, IT 운영팀 등 3개 팀과 부경 및 제주발매팀 등 지역 2개팀으로 구분하였다. 3) 직무 재설계를 통해 기존의 직무체계를 재구성하였으며, IT 조직 인원을 FTE를 활용하여 산정한 후 내부 검토를 걸쳐 최종적으로 확정하였다. 이를 통해 IT공사는 운영중심의 IT 업무를 축소하고 대신 IT 기획업무를 강화하였으며, 타사 대비 낮은 수준의 IT 관리 프로세스를 개선하였고, IT 아웃소싱 관리체계 향상과 함께 IT 사용자의 만족도를 개선시켰다. 본 연구는 IT 조직을 어떠한 방식과 과정을 통해 재설계해야하는지에 대해 고민하는 많은 기업들에게 현실적인 시사점을 줄 수 있을 것이다.

• 간호행정학회지
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• 제3권1호
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• pp.83-92
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• 1997

This study was designed to evaluate the current orientation and further to develop an effective orientation curriculum of new nurses by analyzing questionraire taken from 45 numbers of all nurses who have worked for 18 months below at one hospital located in C city on July, 1995. The results obtained are summarized as follows. 1. The subjects showed the high necessity of "emergency nursing", "cardiopulmunary resuscitation", "disinfection and infection" and "interpersonal relationship" in order, but relatively low necessity of "doctor supports" and "medical insurance affair" for the practical orientation. Therefore, the orientation should provide prepondently an education Which they really need, on the basis of their education experiences and/or requirements. 2. Practical training, individual teaching and performance will be an effective orientation more than theorical education. The educator should be selected from unit based persons being capable of providing technical education to trainee. Also, in order to develop the teaching method and to improve the corresponding ability, a special program is required for educators. 3. It will be desirable that task training is given at least one month before working at their unit. In addition, orientation schedule should be made to concentrate trainee on their task training fully. 4. The subjects showed that half of them had spent four to six months for work adaptation. A meeting of new nurses may be helpful not only to acclimate themselves to new circumstances. but also to provide an exchange of views and an emotional relationship. Furthermore, unit based staffs should exerts efforts to maintain the educational circumstances and warm concern for new nurse's adaptation.

• International Journal of Advanced Culture Technology
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• 제9권4호
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• pp.169-179
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• 2021

This study was conducted to develop and apply clinical nursing practice training simulation program using Standardized Patient for Nursing Students focused on infectious respiratory disease. This study is descriptive methodological study. Through prior consideration of documents and educational task of infectious respiratory disease was conducted with interview of clinical specialists of infection control managers. Development of educational task for infectious respiratory disease for Nursing Students went through the content validity. Finally, 10 educational tasks are developed 'knowledge of respiratory infections disease', 'hand washing', 'put on mask', 'lead to put on mask to patients and caregiver', 'intravenous injection via 3way', 'surgical aseptic technique', 'sterilization medical instrument', 'management of contaminated linen', 'infected personnel management manual'. The infectious respiratory disease simulation program was developed based on the ADDIE model and proceeded to 4 steps of analysis, design, development, implementation. The infection control education program included lectures (20 min), skill training (20 min), simulation using standardized patient (20 min), and debriefing (40 min), The collected data were analyzed by descriptive statistics with SPSS program for version 23.0. The results of this study confirmed that the clinical nursing practice training simulation program using standardized patients was effective in infectious respiratory disease of the nursing college students in knowledge of infectious respiratory disease and clinical nursing performance. we found this practical training program for nursing college students to improve knowledge and clinical competency of infection control. we expected that this developed program could be applied to practical training for various infectious control.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.265-266
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• 2021

Recently, the importance of disaster prevention has emerged as serious accidents have occurred frequently, in which workers died or seriously injured at industrial sites. In response, the government enacted the 'Act on the Punishment of Major Disasters' to strengthen the responsibility, punishment intensity, and regulation of business owners for accidents at the site. In particular, the construction industry accounts for a large proportion of serious accidents, so safety levels need to be raised through on-site management. This study aims to reduce the occurrence of disasters at construction sites and to improve the work efficiency of safety managers. To derive detailed elements of the safety manager's work, domestic and overseas cases were investigated. The derived items were analyzed for the difficulty and preventive effects of the work through a survey of experts, and they will contribute to disaster prevention by presenting tasks to be focused and suggesting ways to improve inefficient tasks.

• 디지털융복합연구
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• 제18권3호
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• pp.123-131
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• 2020

본 연구는 과업갈등이 관계갈등으로 전이되고 또한 관계갈등이 팀 만족 감소로 전이되는 과정에서 팀 구성원간 신뢰수준이 높을수록, 팀 지향성이 높을수록 과업갈등과 관계갈등의 관계가 약화되는지, 그리고 관계갈등과 팀 만족 감소의 관계가 약화되는지 확인하는 것이었다. 경북지역 내 기업 구성원 350명을 대상으로 설문조사를 실시하였고, 274부가 실증분석에 활용되었다. 가설검증을 위해 확인적 요인분석, 위계적 회귀분석을 실시하였고, 실증분석 결과 과업갈등은 관계갈등을 증가시키는 것으로 나타났다. 또한 과업갈등으로 야기된 관계갈등은 팀 구성원의 만족도 또한 감소시키는 것으로 나타났다. 하지만 과업갈등의 부정적 효과는 팀원 간의 신뢰수준과 팀 지향성 수준에 따라 조절될 수 있음을 확인하였다. 그리고 팀 지향성은 관계갈등과 팀 만족간의 부(-)적 영향관계를 조절하는 것으로 나타났다. 기업은 과업갈등과 관계갈등의 영향관계에서 신뢰의 중요성과 관계갈등과 팀 만족도 간의 부정적 관계에서 팀 지향성의 중요성을 기억해야 할 것이며, 연구과정에서 나타난 횡단적 연구의 한계 등을 보완할 연구방법이 추후에는 보완되어야 할 것이다.

• 한국의류산업학회지
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• 제23권1호
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• pp.70-83
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• 2021

Live-streaming commerce is attracting attention as a noticeable trend in the retail industry. It is a new mobile shopping service platform developed by combining live streaming with e-commerce technologies. This study examined the impact of para-social interactions on consumer impulse buying behavior and investigated the impact through task complexity as well as perceived amount of information. To achieve this goal, 203 women using a mobile commerce participated in an online survey after experiencing beauty live-streaming commerce. The collected data were analyzed using SPSS 25.0, AMOS 23.0, and SPSS PROCESS Macro program. The results of the study revealed that para-social interactions negatively influenced task complexity, positively influenced perceived amounts of information, and positively influenced impulse buying behavior. In addition, impulse buying behavior was negatively influenced by task complexity versus positively that was influenced by perceived amounts of information. The impact of para-social interactions on impulse buying behavior is mediated by task complexity and perceived information. The findings of this study contribute to the theoretical extension of para-social interaction on impulse buying behavior in the context of live-streaming commerce. The implications of the findings suggest practical marketing strategies for digital media commerce retailers.