• 한국건설관리학회논문집
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• 제9권5호
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• pp.159-167
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• 2008

건설산업관리는 건설사업의 초기부터 완성에 이르기까지 범위, 시간, 비용, 품질 등 관련 요소에 대한 통합 관리를 통해 프로젝트를 성공적으로 완수하기 위한 조직적 활동이며, 이의 궁극적 목표는 전사적 경영효율을 극대화하는 것이다. 이를 위해 관리자는 작업의 범위와 방법과 순서 및 비용과 일정을 계획, 실행, 감시 및 통제하며 그들에 수반되는 자원을 할당하고 조정한다. 자원배분은 공기 및 비용과 밀접하게 연관되고, 따라서 이들 관계에 근거한 효과적 자원배당은 하나의 의사결정문제로 모형화될 수 있다. 여기서 문제를 구성하는 의사결정기준과 대안의 성과뿐만 아니라 가중치 또한 중요한 기능을 하므로, 이들의 산정에는 일관성과 객관성이 담보되어야 한다. 본 논문은 다수의 의사결정기준하에 동시에 계획된 단일(복수) 프로젝트(현장)에 속한 활동들간에 한정된 동일 자원의 효과적 투입을 위한 우선순위를 결정하는 개념과 방법을 제시하였다. 기반 도구로 다기준 의사결정기법의 하나인 계층분석법을 활용하였으며, 세 가지 유형의 사례에 적용하여 그에 대한 타당성과 유용성을 보였다. 사례 1은 각 활동이 주공정상에 위치하며 선택기준으로 조기종료시간, 잔여후속공기, 후속활동수, 자원요구량 등을 선정하였으며, 사례 2는 경쟁 활동이 상이한 여유시간과 조기종료시간, 자원일수, 후속잔여공기, 후속활동수 등을 의사결정속성으로 선정하였다. 사례 3은 이미 수행된 4개의 농사에 대해 본 연구의 방법을 피드백하여 유용성을 검토하였다.

• 디지털융복합연구
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• 제19권10호
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• pp.411-418
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• 2021

본 연구에서는 Statista와 National Retail Federation가 선정한 100대 이커머스 서비스들을 대상으로 실제 사용자에게 제공하고 있는 정보 탐색 방식 및 사용자 인터페이스의 유형을 조사하고, 인터페이스를 구성하는 시각화 요소 및 조작에 대한 상호작용 방식을 분석한 후 각 유형이 가지는 특성을 도출하였다. 연구결과, 첫째, 정보의 수와 위계단계가 많을수록 스프레드 형태를, 적을수록 드롭다운과 메가 메뉴 방식을 사용하는 경우가 많았다. 둘째, 정보 위계에 따른 시각적 구분 방식은 배경색상, 서체의 변화, 선을 가장 많이 사용하며 변화에 대한 인지가 가장 빠른 배경 색상과 영역간 구분을 명확하게 할 수 있도록 돕는 선을 사용하는 경우가 많았다. 셋째, 사용자 조작에 대한 상호작용 방식은 배경 컬러, 텍스트 컬러, 선 등 다양한 요소들을 두 가지 이상 동시에 적용하는 경우가 가장 많았다. 본 연구는 이커머스의 정보 탐색을 위한 인터페이스의 유형과 세부 요소들의 선택 기준이 될 수 있는 항목들의 분석을 통해 유형별 특성을 정의하였다는 점에서 의미가 있다.

• 한국품질경영학회:학술대회논문집
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• 한국품질경영학회 2006년도 추계 학술대회
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• pp.31-37
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• 2006

The objective of this research is to select the most effective technique from task related techniques(motion & time study, job redesign, physical environment improvement) for improving work efficiency in shipbuilding enterprise. This study consists of several principal steps. The first step is to design critical criteria in evaluating work efficiency in shipbuilding enterprises. The second step is to develop sub-criteria of the critical criteria. The third step is to develop a four level AHP(Analytic Hierarchy Process)structure using the critical criteria, sub-criteria and techniques from task related techniques. The fourth step is to develop the pairwise comparison matrix by each level of AHP structure, which was based on survey data collected at the H heavy industry. And the last step is to select the most effective technique from task related techniques using AHP analysis. The result of AHP analysis has shown clear difference in priority among task related techniques in terms of work efficiency of the shipbuilding enterprise: The reduction of normal time has more importance than the reduction of allowance time, motion & time study techniques are most important for the reduction of normal time, physical environment improvement is most important for the reduction of allowance time as well.

• 산업경영시스템학회지
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• 제30권2호
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• pp.67-74
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• 2007

The objective of this research is to select the most effective technique among task related techniques(motion & time study, job redesign, physical environment improvement) for improving work efficiency in shipbuilding enterprise. This study consists of several principal steps. The first step is to design critical criteria in evaluating work efficiency in ship-building enterprises. The second step is to develop sub-criteria of the critical criteria. The third step is to develop a four level AHP(Analytic Hierarchy Process) structure using the critical criteria, sub-criteria and techniques among task related techniques. The fourth step is to develop the pairwise comparison matrix at each level of AHP structure, which was based on survey data collected at the H heavy industry. And the last step is to select the most effective technique among task related techniques using AHP analysis. The result of AHP analysis has shown clear difference in priority among task related techniques in terms of work efficiency of the shipbuilding enterprise: The reduction of normal time is more important than the reduction of allowance time in improving of the work efficiency. Motion & time study is the most important technique for the reduction of normal time, and physical environment improvement is the most important technique for the reduction of allowance time as well.

• 한국기계가공학회지
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• 제20권4호
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• pp.119-126
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• 2021

During the development of a weapon system, the concept of maintainability is used for quantitatively predicting and analyzing the maintenance time. However, owing to the complexity of a weapon system, the standard maintenance time predicted during the system's development differs significantly from the measured time during the operation of the equipment after the system's development. According to the analysis presented in this paper, the maintenance time can be predicted by considering the system's complexity on the basis of the military specifications, and the procedure can be Part B of Procedure II and Method B of Procedure V. The maintenance work elements affected by the system complexity were identified by the analytic hierarchy process technique, and the system-complexity-reflecting weights of the maintenance work elements were calculated by the Delphi method, which involves expert surveys. Based on MIL-HDBK-470A and MIL-HDBK-472, it is going to present a Korean-style maintainability prediction method that reflects system complexity of weapons systems.

• 대한인간공학회지
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• 제31권2호
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• pp.353-362
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• 2012

Objective: The aim of this study is developing the navigation radar display of navy ship with ecological interface design (EID) framework. Background: Navy ship radar operator must perform navigation support tasks by monitoring the complex and diverse information presented on the radar display. Current radar display is limited in effective navigation aid and response to an unusual state immediately. It is necessary to develop an effective radar display. Method: Ten navy radar operators performed a series of trials in a low-fidelity radar simulation in which they attempted to solve the problems of current navigation situation. Results: The result demonstrated that the ecological interface's performance was better than the existing radar display on performance time and subjective mental workload. Conclusion: This study expand EID study field to navy ship radar display and confirm ecological display is better than existing radar display in performance time, subjective mental work load. Application: The result of this study may help to improve navy ship navigation radar display currently in use.

• 한국항해항만학회지
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• 제39권5호
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• pp.409-415
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• 2015

According to the globalization of world economy on distribution and sales, logistics and transportation parts are playing an important role. Especially, they have to decide what is the key factor of route choice model and how to choose the right transport route in multimodal transport system. By considering the key factors in rote choice model for freight forwarders between Mongolia and Korea, this paper propose 4 main factors: Cost, Delivery time, Freight and Logistics service with 13 sub factors. The importance of factors is surveyed base on AHP through interview with freight forwarders. In results, the empirical insights about current status of Mongolian forwarders are provided with different factors between transportation modes. Expecially, the Time factor is a role factor to choose transport route for air transportation forwarders.

• 대한가정학회지
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• 제33권4호
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• pp.189-198
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• 1995

This study discusses the traditional main life culture of Korea and the relations with the traditional manners of Korean culture. According to studies of literature and an analysis, it shows the traditional courtesy can be linked to the housing structure of the Cho-sun dynasty which can be termed as a representation of traditional Korean society. Housing culture of Cho-sun dynasty led to a most characteristic living culture. To be specific sit-down culture use norms, hierarchy and fittings can be sited. The sit-down culture in turn led to the main courtesies of greeting, table manners, etiquette for entrance and exit, the carefulness shown to elders, the self-restraint of speech and action and the manners between men and women, But in today's world there are realistic difficulties that make the application of these norms in everyday life difficult. But at the same time we must realize that there are traditional norms which overcome time and which affect today's norms.

• 전자공학회논문지A
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• 제33A권11호
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• pp.128-139
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• 1996

In this paper, we propose an algorithm to solve the problem of placement of rectangular blocks whose sizes and shpaes are pre-determined. The proposed method solves the placement of many retangular blocks of different sizes and shapes in a hierarchical manner, so as to minimize the chip area. The placement problem is divided into several sub-problems: hierarchical partioning, hierarchical area/shape estimation, hierarchical pattern pacement, overlap removal, and module rotation. After the circuit is recursively partitioned to build a hierarchy tree, the necessary wiring area and module shpaes are estimated using the resutls of the partitioning and the pin information before the placement is performed. The placement templaes are defined to represent the relative positions of the modules. The area and the connectivity are optimized separately at each level of hierachy using the placement templates, so the minimization of chip area and wire length can be achieved in a short execution time. Experiments are made on the MCNC building block benchmark circuits and the results are compared with those of other published methods. The proposed technique is shown to produce good figures in tems of execution time and chip area.

• 한국공작기계학회논문집
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• 제18권2호
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• pp.178-186
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• 2009

Most of automotive plastic parts are injection molding products. Inspection of total product is impossible, because number of product to inspect is too many and various. Condition-based Monitoring was proposed to decrease cost and time for inspecting. In this research, a system that predicts quality of part at fabrication point of time, and confirms informations through the internet was developed. Cavity sensors were installed inside of mold, and gathered signals as measuring, and through this process Sensor-based Monitoring system can be observed manufacturing of a part. Monitoring system transmits signals to client through the internet, and finally developed system provides manufacturing informations and predictions of quality as web-based monitoring.