• 시스템엔지니어링학술지
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• 제17권2호
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• pp.61-68
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• 2021

A decrease in the fertility rate leads to a reduction of troops, so the need to efficiently operate the troops is growing. Therefore, it is necessary to develop a system for estimating warship manpower. In this study, system development was performed according to the CBD methodology. The user requirements were defined and the system function that satisfies the requirements was derived. And through the development process, the CBD methodology and the systems engineering process were compared. As a result, similarities were confirmed in the analysis and concept design stages, so the possibility of merging the two processes was suggested.

• 대한안전경영과학회지
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• 제20권2호
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• pp.65-76
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• 2018

Recently, most of the information system use environment is changing to GUI environment based on windows and web. Most of the development tools for building such a GUI-based information system support object-oriented and event-driven programming concepts. However, there is still a lack of a development methodology that systematically supports event-based information system construction. From a business perspective, an information system is one that supports business processes efficiently and effectively to improve business performance. These business processes are composed of business activities which involve a series of business events. A business event is executed according to a business scenario. Therefore, it is necessary to grasp these events in the requirements analysis stage and to apply it on the system development methodology. However, information systems development methodology which systematically reflect the event processing concept still is insufficient. From this viewpoint, this paper proposes an event-driven scenario-based development methodology that can meet the recent development environment of information systems, and applies the proposed methodology to a small scale information system development case.

• 한국CDE학회논문집
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• 제6권1호
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• pp.59-68
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• 2001

This paper investigates the structural analysis and design of mechanical heart valve through the numerical analysis methodology. In a numerical analysis methodology application to the thickness minimization structural design of mechanical heart valve, fluid analysis is performed for the blood flow through a bileaflet mechanical heart valve. Simultaneously the kinetodynamic analysis is carried out to obtain the appropriate structural condition for the structural analysis. Thereafter the structural static analysis is also carried out to confirm the thickness minimization structural condition(minimum thickness shape of leaflet).

• 전자공학회논문지CI
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• 제41권6호
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• pp.13-22
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• 2004

본 연구는 기존의 위험분석 방법론들이 갖는 절차상의 복잡성을 최소한으로 줄이기 위하여, 정보시스템보안관리를 위한 위험분석방법론을 제안한다. 제안한 위험분석방법론은 사전처리단계, 대응책설정단계, 사후처리단계의 3단계로 구성된다. 사전처리단계에서는 기본위험분석단계와 상세위험분석 단계로 나누어 실행하도록 하였다. 기본위험분석단계에서는 정보보안 체계가 구축되지 않았거나 단기간에 최소한의 보안 제어를 위한 수단이 필요한 경우 설정된 항목들을 점검하도록 하는 기본적인 보안 관리 단계이다. 상세위험분석단계에서는 자산, 취약성, 위협의 요소들을 분석하고 이를 기반으로 작성된 위험정도 산출표를 이용하여 위험의 정도를 13가지의 경우로 분류한다. 대응책설정단계에서는 위험의 정도에 따라 13가지의 위험정도를 수용, 무시, 감소 또는 이양 등으로 대응방법을 설정한 후, 물리적, 관리적, 기술적으로 대응책을 실행하도록 하였다. 마지막으로 사후관리 단계에서는 침투 테스트로 잔류위험을 평가하고, 보안정책수립과 감사 및 사고대응을 위한 대책이 이루어지도록 하였다.

• 산업공학
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• 제13권1호
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• pp.44-53
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• 2000

While knowledge management (KM) needs to be introduced in order to enhance the competitiveness of Korean firms, most of the current literature focuses on defining the concept of KM and developing its framework. This research attempts to develop an introduction methodology of KM, based on four dimensions such as organization, information technology, process, and culture. The methodology was applied to firm L, which recently adopted KM. A result from the analysis of this case study shows that firm L performed well in the dimensions of organization, information technology, and culture.

• 에너지공학
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• 제8권2호
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• pp.317-324
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• 1999

This study suggests the effectiveness of an "extended" power system evaluation methodology based on LCA and energy input-output analysis techniques. This "extended" evaluation methodology is designed to incorporate total energy system costs through fuel cycle and external costs, including CO$_2$abatement cost. As an empirical test, we applied the methodology to orimulsion-fired power generation technology and found that orimulsion could be considered as in attractive base-load power generation fuel in terms of economic and environmental aspects, compared to conventional coal-fired power plant.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2001년도 추계학술대회 논문집
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• pp.87-90
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• 2001

One of the most important challenges facing companies in the age of internet business is the proper alignment customers needs with internet business system that allaws them to react rapidly and continuously. This paper proposes a methodo1ogy to align analyzing customer's requirements with implementing Internet business system The methodology consists of five Phases. It covers from customer analysis to Internet business system implementation, and each of the five phases has its own activities and outputs. A real- world case is proposed to illustrate the application of the methodology.

• 반도체디스플레이기술학회지
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• 제10권3호
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• pp.89-94
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• 2011

The image identification methodology associates an image with a unique identifiable representation. Whenever the methodology regenerates an identifier for the same image, moreover, the newly created identifier needs to be consistent in terms of representation value. In this paper, we discuss a methodology for image identifier generation utilizing luminance correlation. We furthermore propose a method for performance enhancement of the image identifier generation. We also demonstrate the experimental evaluations for uniqueness and similarity analysis and performance improvement that have shown favorable results.

• 성인간호학회지
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• 제23권6호
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• pp.633-641
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• 2011

Purpose: This study was to examine the trend of qualitative study published by Korean Journal of Adult Nursing from 1989 to 2011, and to suggest future directions through identifying its strength and weakness. Methods: Ninety one published qualitative studies were analyzed focusing on research methodology and research themes using descriptive statistics. Results: During the last 22 years, the number of qualitative studies has rapidly increased and the methodology used to analyze qualitative data has been diversified. The most frequently used analytic method was a phenomenology (48.4%) and the frequency of conducting a content analysis has increased. The prevailing data collection settings were community (61.5%), followed by hospital (35.2%). Especially, many researches showed specific description on researcher's efforts to get validity and reliability of studies in individual studies presented within recent 10 years. However, it was noted that meta study using mixed methodology and secondary analysis of qualitative studies are rarely used and need to be facilitated. Conclusion: Nursing Researchers utilizing qualitative research should continuously make efforts to increase the validity and reliability of their studies and to find knowledges or strategies applicable to practice through using mixed methods or secondary analysis of individual studies.

• 대한기계학회논문집A
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• 제29권10호
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• pp.1377-1383
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• 2005

A general and efficient methodology has been developed to analyze dimensional variations of an assembly, taking into account of weld distortion. Weld distortion is generally probabilistic because of the random nature of welding parameters such as the welding speed, maximum welding temperature, ambient temperature, etc. The methodology is illustrated through a very simple example of two perpendicular plates fillet-welded to each other. Two steps comprise the methodology: establishment of a weld-distortion database, and tolerance analysis using the database. To establish the database, thermo-elasto-plastic finite element analyses are conducted to compute the weld distortion for all combinations of discrete values of major welding parameters. In the second step of tolerance analysis, the weld distortion retrieved from the database is used in addition to the dimensional tolerances of the parts. As a result of such an analysis, sensitivities of the assembly's dimensional variations to the part tolerances and weld distortion are obtained, which can be help improve the dimensional quality of the assembly.