• 정보보호학회논문지
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• 제32권6호
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• pp.1183-1192
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• 2022

정보 및 정보를 생산, 처리, 폐기하는 시스템은 정보의 총수명주기에 걸쳐 일정수준의 보안이 유지되어야 한다. 일정수준의 보안을 유지하기 위해 소프트웨어 및 자동차 개발, 미국 연방정부 정보체계 등 시스템 수명주기의 보안관리 프로세스를 적용하고 있으나, 우리나라에는 이와 유사한 보안관리 프로세스가 전무한 실정이다. 본 논문에서는 국방 분야 정보 및 정보 처리시스템의 총수명주기에 걸쳐 일정수준의 보안을 유지하기 위한 한국형 보안위험관리 프레임워크를 제안한다. 국방 분야에 적용할 수 있는 한국형 보안위험관리 프레임워크의 개발 목적과 적용방안을 소개함으로써 향후 국방 보안업무가 나가야 할 방향을 제시하고 보안 패러다임의 전환을 유도하고자 한다

• 대한인간공학회지
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• 제30권2호
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• pp.303-310
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• 2011

In this study, we employ CPM-GOMS analysis for explaining physical and cognitive processes and for quantitatively predicting when users are typing Korean text messages on mobile phones using both hands. First, we observe the behaviors of 10 subjects, when the subjects enter keypads with both hands. Then, basing upon MHP, we categorize the behaviors into perceptual, cognitive, motor operators, and then we analyze those operators. After that, we use the critical paths to model two task sentences. Also, we used Fitts' law method which was applied many times to predict text entering time on mobile phone to compare with the results of our CPM-GOMS model. We followed Lee's (2008) method that is well suited for text entry task using both hands and calculate total task time for each task sentences. For the sake of comparison between the actual data and the results predicted from our CPM-GOMS model, we empirically tested 10 subjects and concluded that there were no significant differences between the predicted values and the actual data. With the CPM-GOMS model, we can observe the human information processes composed on the physical and cognitive processes. Also we verified that the CPM-GOMS model can be well applied to predict the users' performance when they input text messages on mobile phones using both hands by comparing the predicted total task time with the real execution time.

• 대한인간공학회지
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• 제29권4호
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• pp.605-610
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• 2010

In order to design a touch interface for the elderly, human performance of input tasks on the touch screen was investigated by the laboratory experiment. Input times and input errors were measured in the experimental conditions that were changed according to age, key size, interkey space and input tool(finger or stylus pen). In the most of all experimental conditions, the task performance of the elderly was lower than that of the young. However, there were significantly different performance patterns between both groups. As the difficulty of task was getting higher, the task performance of the elderly was sharply decreased; pressing small key button by finger sharply increased input time and error rate, compared to that of the young. Therefore, the square key size suitable to the elderly may be over $8.0{\times}8.0mm$. While the interkey space did not influence to the input task performance of the young, the task performance of the elderly was influenced. The elderly showed big difference of task performance according to input tool. However, the young were less influenced by input tool.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.96-102
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• 2020

The construction industry remains serious accidents, injuries, and fatalities due to it's unique, dynamic, and temporary nature. On workplace sites, Safety pre-task planning is one of the efforts to minimize injuries and help construction personnel to identify potential hazards. However, the working conditions are complicated. Many activities, including tasks or job steps, are executing at the same time and place. It may lead to an increase in the risks from simultaneous tasks. This paper contributes to addressing this issue by introducing a safety risk interaction analyzing framework. To accomplish this objective, accident reports of the Occupational Safety and Health Administration (OSHA) are investigated. The pairs of task incompatibility, which have time-space conflicts and lead to incidents, are found. Ontology technology is applied to build the risk database, in which the information is acquired, structuralized. The proposed system is expected to improve pre-task planning efficiency and relieve the burdens encountered by safety managers. A user scenario is also discussed to demonstrate how the ontology supports pre-task planning in practice.

• 지식경영연구
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• 제6권2호
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• pp.47-68
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• 2005

The Purpose of this study is to identify relationships between knowledge management performances and such Influence factors of knowledge Management as information technology, knowledge management process, culture & people, strategy & Leadership in Small and Medium-sized Enterprises. In order to test hypotheses, we collected data from 498 SME's employees, then analysed them by SPSSWIN. This results showed as follows; 1. All Influence factors of knowledge Management( information technology, knowledge management process, culture & people, strategy & Leadership) are to advance individual task effectiveness and organization effectiveness significantly. 2. Such Influence factors of knowledge Management as information technology, knowledge management process, culture & people are to improve business efficiency between the company. But strategy & leadership factor is not significant. 3. Influence factors of knowledge Management are different between knowledge performace factors such ac individual task effectiveness, organization effectiveness, and business efficiency between company.

• 디자인학연구
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• 제12권3호
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• pp.227-234
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• 1999

본 논문은 디자인 프로젝트 관리의 리엔지니어링으로서 프로젝트의 기획, 조직, 일정, 그리고 제어하는 통합적인 어플리케이션 소프트웨어 개발의 기초모델을 설정하고, 이를 토대로 프로젝트 관리 시스템의 연구/개발을 목표로 삼고 있다. 프로젝트의 성과, 소요기간, 소요예산, 그리고 소요자원 등을 관리하는 과정이 프로젝트 매니지먼트 기술의 근간을 이루는 것으로, 디자인 프로젝트 상의 수많은 정보를 적시에 효율적으로 처리함으로써 프로젝트를 성공으로 이끌 수 있게 된다. 한편, 디자인프로젝트의 관리를 집단의사결정에 의해 처리함으로써 신뢰도와 합리성의 제고는 물론, 이를 통한 사기앙양이 기대된다. 따라서, 여기에서 야기되는 의사집합의 곤란, 시간손실, 구성원의 갈등 등의 프로젝트 관리에서 비롯되는 부수적인 문제도 전자의 기본적인 관리요소와 함께 통합하여 디자인 프로젝트 관리 시스템(DPMS)을 연구/개발하였다. DPMS 시스템은 디자인 프로젝트의 선정과 디자인 프로젝트의 기획/실행관리/ 평가로 주요 모듈을 설정함으로써 프로젝트 매니저는 해당 프로젝트 과업(Task)과 활동(Activity)에 대한 팀의 운용을 융통성 있게 관리할 수 있게 된다. 이와 더불어 프로젝트 관리를 On-Line DBMS 시스템 환경 상에 운용되도록 하여 정보의 재생산성, 운용의 동시성, 그리고 보안성 등을 도모하였다.

• 동아시아식생활학회지
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• 제5권1호
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• pp.29-39
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• 1995

The purpose of this study was to evaluate job performance of dietitians. The survey also examined differences in job performance of dietitians by institutional classicification, types of task, levels of education and job experience. Data was collected form national samples. Results are summarized as follows. 1. By institutional classification, dietitians working in industry showed lowest score(3.0465${\pm}$.4151), which those working in hospital showed highest score(3.2883${\pm}$.4124) in job performance. 2. By types of task, the score of job performance is in order of hygience management(3.3933${\pm}$.4236), business management(3.3183${\pm}$.5435) and education management(2.3132${\pm}$.7551). 3. By educational level, dietitians who graduated universities scored higher than who graduated junior colleges in general. Specifically, the former had high scores in business management(3.4796${\pm}$.4692) and hygiene management, while the latter had high scores in hygiene management(3.3615${\pm}$.440) and business management, as in order. 4. By job experience, job performance increases after-3 year-experience and peaks in over-10 year-experience. 5. For reasons of negligence in specified taskes, 109 of respondents(22.7%) answered "don't know how to perform" and 108 of them(22.5%) answered "lack of human resources." Also, the lower in job experience the more answered "don't know how to perform" as a reason of negligence a their task(34.5% of below-2 year-experience and 24.2% of junior colleges answered to this reason).

• Journal of Information Technology Applications and Management
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• 제21권2호
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• pp.99-126
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• 2014

Tourism industry increasingly rely on information technology (IT) to improve the task performance. Many studies suggested that the evidence of IT showed not only task performance improvement but also organizational performance. Drawing from the resource-based view, technology and task fitness, and marketing orientation theories, this study proposes that IT use influences directly the task performance and proved the effectiveness of IT in the organizations of tourism industry. Further, the innovativeness, resources, and marketing orientation are identified as main determinants of IT use. The use of IT can serve as a catalyst in improving task performance for organizations in tourism industry. Based on data collected from surveying people who work in the tourism industry, the present study shed light on these issues. The findings provide a new perspective of IT effectiveness in the tourism industry. Then, we discussed the theoretical and practical implications.

• 문화기술의 융합
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• 제8권1호
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• pp.59-66
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• 2022

본 연구는 청소년 축구선수를 대상으로 하여 성취목표성향(과제, 자아지향성)과 자기관리(몸, 대인, 훈련, 정신관리) 검사로 우수선수(연령대별 대표선수)와 비우수선수(일반선수)를 판별할 수 있는가를 알아보기 위하여 수행되었다. 대한축구협회에 등록된 중,고등학교 선수를 모집단으로 하여 연령대별 대표선수 131명, 일반선수 168명 등 총 299명(중학생 144명, 고등학생 155명)을 연구대상으로 하였다. 자료수집을 위한 검사지로는 Duda와 Nicholls(1989)가 개발한 스포츠 성취목표지향성에 관한 검사지(TEOSQ: Task & Ego Orientation in Sport Questionnaire)와 허정훈(2003)이 개발한 운동선수 자기관리 검사지(ASMQ; Athletes' Self-Management Questionnaire)를 사용하였다. 자료분석은 SPSS 23버전을 이용해서 빈도분석, 요인분석, 신뢰도분석, 판별분석을 실시하였다. 자료를 분석한 결과, 성취목표성향의 하위 요인인 과제지향성과 자아지향성은 둘 다 우수 선수와 비우수 선수를 판별하지 못하는 검사로 확인되었다. 반면에 자기관리 검사는 하위 요인중 대인관리를 제외한 몸관리, 훈련관리, 정신관리가 우수선수와 비우수선수를 판별할 수 있는 검사로 확인되었다. 특히, 자기관리 중 정신관리가 우수선수와 비우수선수를 판별하는데 있어서 가장 중요한 요인으로 확인되었다.

• Journal of Computing Science and Engineering
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• 제4권3호
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• pp.189-206
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• 2010

It is generally accepted that dynamic voltage scaling (DVS) is one of the most effective techniques of energy minimization for real-time applications in embedded system design. The effectiveness comes from the fact that the amount of energy consumption is quadractically proportional to the voltage applied to the processor. The penalty is the execution delay, which is linearly and inversely proportional to the voltage. According to the granularity of tasks to which voltage scaling is applied, the DVS problem is divided into two subproblems: inter-task DVS problem, in which the determination of the voltage is carried out on a task-by-task basis and the voltage assigned to the task is unchanged during the whole execution of the task, and intra-task DVS problem, in which the operating voltage of a task is dynamically adjusted according to the execution behavior to reflect the changes of the required number of cycles to finish the task before the deadline. Frequent voltage transitions may cause an adverse effect on energy minimization due to the increase of the overhead of transition time and energy. In addition, DVS needs to be carefully applied so that the dynamically varying chip temperature should not exceed a certain threshold because a drastic increase of chip temperature is highly likely to cause system function failure. This paper reviews representative works on the theoretical solutions to DVS problems regarding inter-task DVS, intra-task DVS, voltage transition, and thermal-aware DVS.