• Korean Journal of Construction Engineering and Management
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• v.20 no.4
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• pp.3-12
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• 2019

VE analysis is a method to secure definite functions and performance by defining user's various requirements clearly and propose alternatives to reduce cost. However, the present domestic VE project has difficulty in defining design function analysis clearly due to time constraints as well as difficulty in effective and efficient communication between project stakeholder. Domestic results of VE were largely focused on reducing cost while maintaining the functions of the existing facility. Therefore, this study aims to secure the optimal functions for users according to the original intent of user requirements through QFD-VE model which project VE participants can make collective and cooperative decision making. QFD-VE is a technique that first, it can make collaborative decision making in defining and modifying of design function and setting the importance of requirement function. Second, it allow project VE participants to check design interference and conflict between neighbor systems. This study also provided a mathematical model for implementing the computer system using QFD-VE in the future.

• Journal of Korea Society of Industrial Information Systems
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• v.6 no.1
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• pp.48-55
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• 2001

The survey was carried out for the student sin colleges of SangJi University for analyzing the parameters affecting the selection of ones cultural studies and major subjects. The number of respondents was 204, and the responses were computer-processed utilizing Excel and statistical software SPSS. The attributes of main factors were composed of House of Quality(HOQ) that is basic matrix of Quality Function Development. From the survey analysis, selection criteria for ones cultural studies and major subjects are as follows. In selecting ones cultural studies, teaching methodology is the most important factor than assignment, the percentage of attendance and academic credit. And in case of major subjects, no other factors than the recommendation by seniors were significantly affected ones subject selection.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2012.11a
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• pp.31-34
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• 2012

The construction industry is hard to apply to the statistical methodology of 6-sigma. For example, it is hard to verification of fraction defective through quantity production. So, in this research the proposed approach for effective process of technology development through establish of innovative methodology reflecting constructional characteristics. Few studies have progressed in construction industry, but there are so many examples using 6-sigma for applying to customer needs at the product development or process improvement in manufacturing business. So this research proposed the design methodology using QFD of 6-sigma and TRIZ.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.06a
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• pp.123-126
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• 2005

We develop the evaluation method of functional requirements for excavator design. The functional requirement of the product can be deduced from voice of customer. QFD method is used in order to convert customer requirement to functional requirement. The measure of information index is used to evaluate quantitatively the product quality characteristics. The correlation score between customer requirements and functional requirements and benchmarking score of competitors are basic data for the measure of information.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1033-1034
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• 2011

공작기계에 유압동력을 공급하는 유압동력발생장치의 신뢰성은 공작기계 전체의 신뢰성과 밀접한 관계를 가진다. 전기모터에 의해 유량을 직접제어하는 유압펌프의 시제품에 대한 신뢰성을 평가하기 위해서 성능시험, 내환경시험, 그리고 수명내구시험을 실시할 필요가 있다. 본 연구에서는 2단계 품질기능 전개를 통해 전기모터에 의한 직접유량 제어방식 유압펌프의 신뢰성평가 시험항목을 결정하였다. 시험항목에는 전기모터에 대한 항목, 유압펌프에 대한 항목, 하우징 및 냉각시스템에 대한 항목이 포함되어 있다. 신뢰성평가 시험 항목 중, 가장 큰 비중을 차지하는 수명내구시험에 대해 무고장수명시험을 산출하고, 시험소요시간 단축을 위한 가속모델을 제안하고, 실제 구동 조건을 적용하여 가속수명시험시간을 산출하였다.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1035-1036
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• 2011

직구동방식 고속 솔레노이드 액추에이터는 자동차, 항공산업 등의 고정밀을 요구하는 산업시스템에 주요부품으로 사용되기 때문에 고신뢰성이 요구된다. 본 연구에서는 직구동방식 고속 솔레노이드 액추에이터의 신뢰성 평가를 위하여 2단계 품질기능전개를 통해 신뢰성시험항목을 결정하였다. 신뢰성평가 시험 중에서 가장 큰 우선도를 차지하는 수명시험에 대해 문헌, 연구계 및 현장실무자를 통한 무고장 수명시험 시간을 산출하였다. 또한 장기간 소요되는 무고장 수명시험 시간의 시간을 단축하기 위해 가속모델을 제안하고 실제 조건을 충족하는 가속수명 시험시간을 산출하였다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.05a
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• pp.483-486
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• 2004

Although it is not easy to generate EC's (Engineering Characteristics), there have been few studies so far. In this paper, a systematic method for generating EC candidates is proposed. This method use the concept of 'attribute listing'. In the proposed method, customer attributes are divided into their objects and issues. And attributes from their objects and issues are generated by help of guidelines proposed, respectively. Then, measurable metrics are attained from those attributes. Finally, the metrics result in EC candidates by consistency and redundancy check. This paper gives an illustrative example for easy comprehension of the proposed method.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.566-573
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• 2005

Quality function deployment (QFD) is a useful tool for ensuring quality throughout each stage of the product development and production process. Since the focus of QFD is placed on the early stage, the uncertainty in the input information of QFD is inevitable. If the uncertainty is neglected, the QFD analysis results are likely to be misleading. This paper classifies the sources of uncertainty in QFD, and proposes a new approach to model and analyze the effects of uncertainty in QFD.

• Journal of the Korea Safety Management & Science
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• v.2 no.4
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• pp.125-138
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• 2000

The purpose of this paper is to describe a new analytic method of capital budgeting projects that takes into account both customer wants and competitor's status and to give decision makers a tool for goal setting and planning for technology. This model, which is based on quality function deployment(QFD), has used the analytic hierarchy process(AHP) to determine the intensity of the relationship between the variables involved in each matrix of the model and the 0-1 integer programming to determine the allocation of funds to various technological projects. This paper also proposes how to calculate the new weight of columns to consider various strength levels of roof matrix, representing the correlation among the quality characteristics, using Lyman's normalization procedure. To compare this model with Partovi's model, I adapt the same example which is suggested by Partovi and I show that the value of object function, has maximization problem, in this model is larger than that in Partovi's model.

• Journal of the Korea Institute of Military Science and Technology
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• v.10 no.4
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• pp.105-115
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• 2007

This study identifies technical barriers and trends on Radio Frequency Identification(RFID) applications for military force, and investigates technical requirements for the RFID implementation on military information systems, based on the preliminary research results from the introductory RFID applications on Ammunition Information System(AIS). We first obtain technical requirements using the Quality Function Deployment(QFD) methods, and identify the areas for research and developments. Furthermore, based on the survey results from military experts and users, we provide the potential application areas for military RFID implementation. Conversely, a technology and research roadmap for RFID in the military system is developed.