• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 춘계학술대회 논문집
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• pp.151-156
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• 2005

The objective of this study is to devise an accident scenario analysis method adept at creating accident scenarios at the Preliminary Hazard Analysis(PHA) step of a hazard analysis for railway system. This approach was inspired by the Quality Function Deployment(QFD) method, which is conventionally used in quality management and was used at the systematic accident scenario analysis(SASA) for the design of safer products. In this study, the QFD provides a formal and systematic schema to devise accident scenarios while maintaining objective. The accident scenario analysis method first identifies the hazard factors that cause railway accidents and explains the situation characteristics surrounding the accident. This method includes a feasibility test, a clustering process and a pattering process for a clearer understanding of the accident situation. Since this method enables an accident scenario analysis method to be performed systematically as well as objectively, this method is useful in building better accident prevention strategies. Therefore, this study can serve to reduce railway accident and be an effective tool for a hazard analysis.

• 정보화연구
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• 제9권3호
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• pp.303-321
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• 2012

시나리오 방법론은 빠르고 복잡하게 변화화는 경영환경 하에서 기업을 지원해 주는 가장 효과적인 툴 중에 하나이다. 특히, 시나리오 방법론은 불확실한 상황에서 의사결정시 보다 효과적이다. 이 논문은 기업의 관리자들이 어떻게 시나리오 기반의 기업 전략을 수립 할 수 있는지 보여 준다. 한국의 무선 통신 서비스 시장의 가상 이동 망 사업자 (MVNO: Mobile Virtual Network Operator)의 사례를 들어 설명하였다. 또한, 시나리오 기반 관리에 대한 이론적 고찰을 하였으며, 전략적 관리 프로세스에 시나리오 방법론을 통합하는 방법론에 대해 논의하였다. 특히, 시나리오에서 상황을 결정짓는 다양한 중요 요소들과 흐름들을 새롭게 고안된 방법론을 통하여 발견하였고, 이를 통해 새로운 전략들을 도출하였다.

• 디자인학연구
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• 제16권2호
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• pp.35-48
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• 2003

Home networking technology connects individual home appliances through a wired or wireless network and makes possible new functions that were impossible when they were used independently. However, the new functions must not simply be confusing arrays of functions that are possible to implement, but those absolutely necessary to the users. To develop innovative information appliances with such functions, scenarios were used and played guiding roles in suggesting new product ideas, making design mockups, and producing videos to show natural situations where the products would be used in home of the future. In the phase of suggesting new product ideas, user action scenarios in the home, generated by a team consisting of experts in the fields of cognitive engineering, user interface, computer science, cultural anthropology, interaction design, and product design, helped the team identify user needs and design factors necessary to fulfill those needs and suggest new product ideas from the design factors. In the phase of making design mockups, the procedures of using the products were described in the scenario format. Based on the scenarios the s쇼les and the user interfaces of them were designed. In the phase of producing videos, the interactions between the user and the product were embodied in the course of professional writers'arranging the scenarios of using the products for the scripts of the videos. Videos were produced to show the actual situations where the design mockups would be used in home of the future and the dynamic aspects of interaction design.

• 한국콘텐츠학회논문지
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• 제14권12호
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• pp.574-585
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• 2014

영화의 촬영이란 단순히 시나리오의 내용이나 인물의 행동을 화면에 옮기는 작업이 아니다. 촬영감독은 이미지를 통해 시나리오에 담긴 감정을 화면에 축적한다. 그 축적의 연속이 영화의 본질이다. 따라서 촬영감독은 끊임없이 시나리오를 해석하고 그것을 시각적으로 표현하기 위해 애쓰게 되는데 이러한 작업에서 가장 근본이 되는 것은 당연히 촬영 기술이다. 결국, 영화 촬영이란 기술을 수단으로 예술성을 드러내는 작업이므로 촬영의 가장 기본적인 기술적 요인을 살펴보는 것은 영화예술을 이해하는데 큰 도움이 된다. 인물의 감정을 드러내는 여러 기술적 수단이 있지만 그 중 조명이나 미술 등의 도움 없이 카메라 그 자체의 기능만으로 가장 간단하고도 유력하게 시도할 수 있는 것이 셔터의 활용이다. 그러므로 본 논문에서는 셔터의 활용에 대하여 기본적이면서 필수적으로 알아야 할 요인들에 대해 논의한다.

• Nuclear Engineering and Technology
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• 제41권10호
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• pp.1361-1374
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• 2009

Due to the need of data for a Human Reliability Analysis (HRA), a number of data collection efforts have been undertaken in several different organizations. As a part of this effort, a human error analysis that focused on a set of simulator records on a Steam Generator Tube Rupture (SGTR) scenario was performed by using the Human Event Repository and Analysis (HERA) system. This paper summarizes the process and results of the HERA analysis, including discussions about the usability of the HERA system for a human error analysis of simulator data. Five simulated records of an SGTR scenario were analyzed with the HERA analysis process in order to scrutinize the causes and mechanisms of the human related events. From this study, the authors confirmed that the HERA was a serviceable system that can analyze human performance qualitatively from simulator data. It was possible to identify the human related events in the simulator data that affected the system safety not only negatively but also positively. It was also possible to scrutinize the Performance Shaping Factors (PSFs) and the relevant contributory factors with regard to each identified human event.

• 한국농림기상학회지
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• 제18권3호
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• pp.170-178
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• 2016

농업부문의 기후변화 적응은 농작물의 생육과 수량에 미치는 기후변화 영향의 정량평가로부터 시작된다. 이를 위한 조건으로서 작물모형 외에 과거-미래 간 이음새 없는 기후자료가 필요하지만, 기후시나리오에서 산출된 과거 기간의 자료는 실측 기후와 차이가 난다. 이것을 보정 없이 작물모형 구동에 사용한다면 농작물의 생육과 수량예측이 현실과 동떨어진 것이 되어 모의결과를 바탕으로 마련된 적응대책은 실효성이 낮아진다. 또한 동일한 기후시나리오를 사용자에 따라 서로 다른 시공간적 상세화 작업이나 기후모델의 편의보정을 위한 후처리 작업을 수행한다면 작물모형 구동결과는 달라질 수 있다. 농업부문에서 불확실성을 최소화한 영향평가결과를 도출하기 위해서는 먼저 최종 사용자의 목적에 적합한 공간적 및 시간적 규모를 설정하는 일이다. 나아가 과거기후의 재현성을 포함한 시나리오기후의 불확실성을 정확히 파악하여 영향평가결과의 불확실성을 정량적으로 제시할 수 있어야 한다. 이 논문에서는 기후시나리오의 농업분야 활용과정에서 발생할 수 있는 불확실성을 요인별로 추적하고, 이를 줄이기 위한 자료처리기법을 소개하며, 연구목적에 따른 최적 시나리오 자료를 추천함으로써 기후변화 적응을 위한 기초정보를 제공하고자 하였다.

• 한국농공학회논문집
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• 제54권2호
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• pp.77-86
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• 2012

This study was aim to predict future land-cover changes and to analyze regional land-cover changes in irrigation areas and agricultural reservoir watersheds under climate change scenario. To simulate the future land-cover under climate change scenario - A1B of the SRES (Special Report on Emissions Scenarios), Dyna-CLUE (Conversion of Land Use Change and its Effects) was applied for modeling of competition among land-use types in relation to socioeconomic and biophysical driving factors. For the study areas, 8 agricultural reservoirs were selected from 8 different provinces covering all around nation. The simulation results from 2010 to 2100 suggested future land-cover changes under the scenario conditions. For Madun reservoir in Gyeonggi-do, total decrease amount of paddy area was a similar amount of 'Base demand scenario' of Water Vision 2020 published by MLTMA (Ministry of Land, Transport and Maritime Affairs), while the decrease amounts of paddy areas in other sites were less than the amount of 'High demand scenario' of Water Vision 2020. Under A1B scenario, all the land-cover results showed only slight changes in irrigation areas of agricultural reservoirs and most of agricultural reservoir watersheds will be increased continuously for forest areas. This approach could be useful for evaluating and simulating agricultural water demand in relation to land-use changes.

• 한국IT서비스학회지
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• 제12권4호
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• pp.349-367
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• 2013

In MANET, the AODV routing protocol with on-demand method has a problem in large control packet overhead. In order to improve this, we first need a comprehensive analysis of correlation between performance metrics and factors affecting the performance of AODV. Selected parameters based on this analysis make it enable to be a more accurate and fair performance analysis, as well as to reduce the time and effort when constructing a scenario for performance analysis. In this paper, various scenarios are configured to apply AODV by varying the values of factors affecting the performance with network simulator QualNet 5.0, and then the results are analysed using performance metrics proposed by IETF MANET working group. This paper also founds a correlation between performance metrics and factors affecting the performance for AODV routing protocol, choosing the values of factors that represent many of the most maximum and minimum values of each performance metrics, and proposes optimal simulation parameters for a more accurate performance evaluation of routing protocols with minimal scenario in experiments. Next, performance comparison of AODV, DSR and DYMO routing protocols based on the proposed simulation parameters is shown which provides a comparative analysis on the performance of on-demand routing protocols. Results of this paper could be very useful for the researcher or service provider who wants to find nice simulation environment or select a proper routing protocol.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 추계학술대회
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• pp.316-321
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• 2007

Effective Training has been recognized as one of the most important success factors for enterprise resource planning (ERP) system operations. However, both ERP system vendors and user companies have failed to provide an effective training method for users because practical business process cases cannot be formalized. Also, incomplete testing by ERP system vendors results in insufficient and ineffective user training. This paper suggests a scenario framework for ERP testing and training (SF-ETT). SF-ETT is constructed by expanding the practice-based ERP testing scenario construction framework designed for uniERPII. SF-ETT contains concrete business process entities that users understand actually and provides practice definition, notation, and architecture.

• 산업공학
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• 제15권2호
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• pp.114-125
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• 2002

The objective of this paper is to describe a systematic accident scenario analysis method(SASA) adept at creating accident scenarios for the design of safer products. This approach was inspired by the Quality Function Deployment(QFD) method, which is conventionally used in quality management. In this study, the QFD provides a formal and systematic scheme to devise accident scenarios while maintaining objectivity. SASA consists of three key stages to be broken down into a series of consecutive steps:(1) developing an accident analysis tableau,(2) devising the accident scenarios using the accident analysis tableau,(3) performing a feasibility test, a clustering process and a patterning process, and finally(4) performing quantitative evaluation of each accident scenario. The SASA was applied to a case study of child safety seats. The accident analysis tableau devised 2828(maximum) accident scenarios from all possible relationships between the hazard factors and situation characteristics. Among them, 270 scenarios were devised through the feasibility test and the clustering process. The patterning process reduced them to 29 patterns representative of all accident scenarios. Based on an intensive analysis of the accident patterns, design guidelines for a safer child safety seat were recommended. The implications of the study on the child safety seat case were then discussed.