• Journal of Information Technology Applications and Management
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• 제14권4호
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• pp.121-138
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• 2007

This study proposes a method to improve network security systems based on critical success factors for systems development. To accomplish the research objective, the study analyzes required functions of network security systems and reviews existing methods to improve network security systems. Based on the analyses and literature review, critical success factors for development of network security systems are identified and a new method to improve network security systems based on the critical success factors is proposed. The proposed method to improve network security systems is based on utilizing multi-core processors. A prototype is developed and validated. This study will provide a good case in the network security area where research incorporating both engineering and management disciplines lacks.

• 품질경영학회지
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• 제32권3호
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• pp.216-233
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• 2004

The real estate management includes not only the brokerage, property management, development, investment and consulting which are related to real estate handling, but also the human resources who deal with the real estate business. The level of management quality of Korean real estate business is rather poor. This paper deals with management innovation of real estate management using Six Sigma methodology The main focus of this Paper is to develop strategy Planning, and is to select critical success factors for each strategy to make an advanced management system for real estate business. This paper is a case study, and the target company for this innovation is ERA-Korea Company. Seven strategies are proposed, and for each strategy several critical success factors are suggested. Through this case study, the authors hope that a management quality model for real estate business is proposed, and an improved management method can be adopted in the other real estate companies.

• 동아시아경상학회지
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• 제7권4호
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• pp.27-40
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• 2019

Purpose - This study aims to analyze PASECO's environment and strategies during its advance into the Middle East to find out the success factors of the kerosene heater market and provide strategic implications for small and medium enterprises' growth based on these factors. Research design and methodology - This study analyzes the success factors of companies operating in the Middle East. As a case analysis study, the method of research analyzes case enterprises through existing literature, newspaper articles, and corporate interview materials. Results - PASECO's success was shown by its high technological power in kerosene heater products, understanding customers' needs, understanding the Middle East market and localization strategy. Conclusions - PASECO has been constantly developing R&D capability to secure competitive products and has released localized products to enhance the satisfaction of its customers in the Middle East and has also been successful by constantly creating new opportunities. The firm's success strategies provide implications for small and medium-sized businesses for greater growth.

• 디지털융복합연구
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• 제15권8호
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• pp.455-463
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• 2017

이 연구의 목표는 사례관리자들의 사례관리 성공경험을 탐색하여 현장에서 활용 가능한 목표를 도출하는 것이다. 이 연구의 방법은 자료 수집을 위해 전문 사례관리 사회복지사 20명에 대한 각 2회의 초점집단 인터뷰(Focus group interview)와 자료 분석을 위해 Glaser의 근거이론 방법(Grounded theory method)중 사건코딩을 사용하였다. 분석결과 4개 범주, 10가지 하위범주, 25가지 요소가 도출되었다. 성공경험의 내용은 다음과 같다. [1범주] 클라이언트의 만족과 능력, 하위범주는 (1)역량강화의 시작, (2) 변화의 목표 찾기,(3) 변화의 달성, (4) 클라이언트 주도의 성공, [2범주] 사례관리자의 능력, 하위범주는 (5) 균형있는 인간관 형성, (6) 기술과 능력 향상, [3범주] 조직과 환경, 하위범주 (7) 실천 지원체계확립, [4범주] 신뢰관계 (8) 사례관리자와 클라이언트의 신뢰향상, (9) 지역사회와 클라이언트의 신뢰향상, (10) 사례관리자와 지역사회의 신뢰향상. 이 연구의 결과는 현장의 사례관리 실천 목표를 분명히 하도록 하였고, 향후 기관평가, 사례관리영역에 반영하는 대안으로 제시했다.

• 한국건설관리학회논문집
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• 제23권3호
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• pp.56-65
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• 2022

본 연구는 활동기반 재무관리기법인 ABC의 성공요인과 관련한 사례연구를 통해 건설프로젝트에 적용 가능한 요인을 추출한 다음 ABC의 성공요인이 프로젝트성과에 미치는 영향력을 파악하고, 커뮤니케이션의 조절효과를 분석하여 ABC의 핵심 성공요인을 밝혀내고자 하였다. 설문조사 방법은 델파이 기법을 활용하여 온라인 설문방식으로 진행하였다. 통계 분석방법은 SPSS Statistic 20으로 빈도분석과 요인분석을 수행하고 SmartPLS 2.0으로 가설검증을 수행하였다. 분석결과, 품질 이니셔티브와의 연계가 프로젝트성과에 미치는 ABC의 성공요인뿐 아니라 커뮤니케이션 조절효과에도 영향을 미치는 것으로 나타났다. ABC 성공을 위해서는 품질 이니셔티브와의 연계와 커뮤니케이션이 가장 중요한 핵심 성공요인임을 확인할 수 있었다. 본 연구의 결과를 바탕으로 ABC와 품질경영을 잘 연계시킨다면 프로젝트의 성과를 향상하는데 효과를 볼 수 있을 것으로 기대한다.

• 한국멀티미디어학회논문지
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• 제25권6호
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• pp.878-885
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• 2022

Research in the field of computer vision based on deep learning is being actively conducted. However, deep learning-based models have vulnerabilities in adversarial attacks that increase the model's misclassification rate by applying adversarial perturbation. In particular, in the case of FGSM, it is recognized as one of the effective attack methods because it is simple, fast and has a considerable attack success rate. Meanwhile, as one of the efforts to visualize deep learning models, Grad-CAM enables visual explanation of convolutional neural networks. In this paper, I propose a method to generate adversarial examples with high attack success rate by applying Grad-CAM to FGSM. The method chooses fixels, which are closely related to labels, by using Grad-CAM and add perturbations to the fixels intensively. The proposed method has a higher success rate than the FGSM model in the same perturbation for both targeted and untargeted examples. In addition, unlike FGSM, it has the advantage that the distribution of noise is not uniform, and when the success rate is increased by repeatedly applying noise, the attack is successful with fewer iterations.

• 대한치과기공학회지
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• 제19권1호
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• pp.5-12
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• 1997

To examine the difference of castability of non -precious porcelain metal according to 2 type of investing method, experiments were carried out using the method of both existing investing method and the investment with spaces to the upper & lower parts of the ring. The following conclusion were obtained from the result. 1. Seperataly using the existing investment and with spaces to the upper & lower parts of the ring, 44 samples resulted in success with the former method and 52 with the latter out of 84 samples. 2. Under the existing investing method, 44 samples out of 56 total resulted in success when the temperature of the ring was $870^{\circ}C$, and all samples failed when the temperature was $800^{\circ}C$. 3. Under the investment that gives space to the ring, when casted with the temperature of the ring fixed at $870^{\circ}C$, 40 samples out of 56 and 17 samples with the temperature fixed at $800^{\circ}C$ resulted in success. 4. Under the existing investing method with the temperaure of the ring fixed at $870^{\circ}C$ and heat soaking time given an hour, 26 out of 28 samples resulted in success and 18 resulted the same with half an hour heat soaking time. 5. Using the investment that gives space to the ring, at ring temperature $870^{\circ}C$ with heat soaking time 1 hour, all of total 28 rusulted insuccess however only 12 smaples succeeded with 30 minutes heat soaking time. 6. Under the existing investing method, samples with heat soaking time 1 hour equally given at ring temperature $870^{\circ}C$, 26 samples out of 28 succeed however at $800^{\circ}C$ all samples failed. 7. In the case of ring's upper and lower parts opened ring temperature is $870^{\circ}C$ and $800^{\circ}C$ and the heat soaking time was fixed at 1 hour, all 28 samples resulted in success and at $800^{\circ}C$ 17 succeed.

• 대한전기학회논문지
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• 제41권9호
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• pp.1051-1059
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• 1992

In this paper, two general methods using time-series analysis in the functional separation of the myoelectric signal of human arm movements are developed. Autocorrelation, covariance method and sequential least squares algorithm were used to determine the model parameters and the order of signal model to describe six arm movement patterns` the forearm flexion and extension, the wrist pronation and supination, rotation-in and rotation-out. The confidence interval to classify the functions of arm movement was defined by the mean and standard deviation of total squared error. With the error signals of autoregressive(AR) model, the result showed that the highest success rate was obtained in the case of 4th order, and success rate was decreased with increase of order. Autocorrelation was the method of choice for better success rate. This technique might be applied to biomedical and rehabilitation engineering.

• 한국정밀공학회지
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• 제22권6호
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• pp.183-191
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• 2005

Axiomatic design offers a scientific base for design in an efficient way. It is well known that it has two axioms: the Independence Axiom and the Information Axiom. Many applications of the Independence Axiom have been published, however, the Information Axiom has been mainly applied to IFR (functional requirement) - 1DP (design parameter) problems except fer a few case studies. This research presents various methods for calculation of information content. Generally, the information content is evaluated by the probability of success. The probability of success is calculated in two ranges: the FR range and the DP range. In the FR range, the graphical method is utilized with uniform distribution of the DP. In the FP range, the integration method is employed. It is noted that any distribution function of the DP can be accommodated in the integration method. The developed method can be applied to a decoupled design with multiple FRs and DPs. The developed method is extended to a coupled design and a design with a hierarchical structure of axiomatic design.

• 유통과학연구
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• 제14권2호
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• pp.65-72
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• 2016

Purpose - Recently on-the-job training (OJT) has become the most preferred training and development method with the emergence of the concept that workplace is the best place where learning take place. But many researchers argue that OJT is not helpful for the performance of organization because OJT is not systematic and mostly depend on quality of trainer. Since Jacobs & McGriffin introduced S-OJT (structured OJT), there has been plenty of researches. But most of the researches have focused mainly on employee's attitude and organizational performance caused by S-OJT and neglected a holistic approach of S-OJT as a system. S-OJT need to be analyzed comprehensively to understand training performance because S-OJT is operated as a system consist of input, process, and organizational context. Although S-OJT may create unintended consequences, there were few researches to explore them. Thus, the purpose of this study is to identify the critical success factors for S-OJT and to find unintended consequences of it. Research design, data and methodology - We conducted a case study on M business unit of A company which developed and has been implementing S-OJT program for years. We designed and prepared the process, collected and analyzed data for the study. We set the theoretical framework to analyze the case after reviewing theories and previous studies on S-OJT. We collected and analyzed internal reports and interview results of the employees of the M business unit. We tried to collect as many information as possible to secure the validity of the research results. Results - The critical success factors identified in the study are as follow. First, it is important to select and train proper trainers for S-OJT. Second, it is needed to develop structured training module. Third, organization have to use effective communication system like on-line community. Forth, trainer should have proper skills for training such as facilitating skill, coaching skill, and delivering skill etc. Fifth, proper learning place is needed. Sixth, organizational support is important especially, immediate supervisor support and concern is critical. Eleventh, it is needed to consider situational contexts. Among them, overload to the trainer will affect the effectiveness of S-OJT. In this study, we found an additional unintended consequence. "To teach is the best way to learn." Experience as a trainer give employee an opportunity to organize one's knowledge and skill and to attain facilitation skill, coaching skill, and relation skill. Thus, organization may use S-OJT to train the potential talent. Conclusions - Many organizations introduced S-OJT to train the newcomers because S-OJT drew attention as an important tool to develop employees. Following this trend, there has been increasing number of researches to find the results of S-OJT and identify the determinants of S-OJT success. However, most of the researches concentrated on finding effects of some factors neglecting holistic approach. This study tried to identify critical success factors affecting effectiveness of S-OJT by using case study and find additional unintended consequence. The results of the study will be useful for organizations which have a plan to adopt S-OJT.