• 한국시뮬레이션학회논문지
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• 제30권2호
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• pp.1-9
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• 2021

국방 모델링 및 시뮬레이션에서 교전상황을 모의할 때 바람의 방향이나 세기, 온도, 장애물과 같은 다양한 요소들이 탄의 명중률에 영향을 줄 수 있다. 이러한 요소는 명중확률 값과 표적의 탄착위치에 영향을 줄 수 있기 때문에, 신뢰성 있는 무기효과 데이터를 얻기 위해서는 이러한 요소들을 고려해야 한다. 본 연구는 신뢰성 있는 무기효과 데이터 계산을 위한 시나리오 설정을 위해 군사 시나리오 정의 언어인 MSDL(Military Scenario Definition Language)의 확장을 제안한다. 기존 MSDL의 요소 중 무기효과 데이터를 산출과 관리에 영향을 주는 요소인 시나리오 식별자(ScenarioID), 환경(Environment), 조직(Organizations), 그리고 설치(Installations)의 하위에 일부 요소를 추가하고, 해당 무기효과 데이터를 효율적으로 획득하기 위하여 적용하기 위하여 교전결과 처리 요소(DamageAssessment)와 실험계획 요소(DesignOfExperiments)를 추가하였다. 확장된 MSDL을 사용한 시뮬레이션 시나리오는 무기효과 데이터 산출을 위한 실험 시나리오 설정에서 교전에 영향을 주는 요소를 쉽게 반영할 수 있다. 확장된 MDSL은 무기체계 효과분석을 위한 실행환경인 AddSIM 4.0의 시나리오 설정 기능으로 반영되었으며, 이는 신뢰성 있는 무기효과 데이터 산출에 활용될 것이다.

• 시스템엔지니어링학술지
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• 제8권1호
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• pp.21-28
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• 2012

Development of the system that has required performance is the most important figure and that is the key of project succeed. In order to perform that, systems engineering has come to the fore as a solution. In each step of system engineering process, particularly, requirement analysis and derivation, logical solution, architecture design step are known to affect many of the function and efficiency. Of these, this paper focus on architecture design. We introduce methodology for physical architecture design by applying DSM(Design Structure Matrix) methodology which is based on result of logical solution from MBSE methodology.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제2권1호
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• pp.70-77
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• 2002

This paper describes a design driven approach to drive intelligent test plan generation based on adaptive use case (3,5). Its foundation is an object-oriented software design approach which partitions design schema into design architecture of functional components called “design component”. A use case software development methodology of adaptive use case approach developed in I.I .T is employed which preserves this unit architecture on through to the actual code structure. Based on the partition design schema produced during the design phase of this methodology, a test plan is generated which includes a set of component and scenario based test. A software metric is introduced which produces an ordering of this set to enhance productivity and both promote and capitalize on test case reusability, This paper contains an application that illustrates the proposed approach.

• Journal of Communications and Networks
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• 제14권3호
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• pp.296-309
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• 2012

In existing middleware for body sensor networks, energy limitations, hardware heterogeneity, increases in node temperature, and the absence of software reusability are major problems. In this paper, we propose an event-based grid middleware component that solves these problems using distributed resources in in vivo sensor nodes. In our multi-hop communication, we use a lightweight rendezvous routing algorithm in a publish/subscribe system of event-based communication. To facilitate software reuse and application development, a modified open services gateway initiative has been implemented in our middleware architecture. We evaluated our grid middleware in a cancer treatment scenario with combined hyperthermia, chemotherapy, and radiotherapy procedures, using in vivo sensors.

• 대한원격탐사학회지
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• 제36권3호
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• pp.475-486
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• 2020

기후변화 시나리오는 기후변화 대응 연구의 기반이 되는 사항으로, 대용량 시공간 데이터로 구성되어 있다. 데이터의 관점에서는 1종의 시나리오가 약 83 기가바이트(Giga bytes) 이상의 대용량이며, 데이터 형식은 반정형으로 검색, 추출, 저장 및 분석 등 활용상 제약이 있다. 본 연구에서는 대용량, 다중시기 기후변화 시나리오의 활용을 편리하게 개선하기 위하여 공간정보 기반의 극단적 기후사상 분석 도구를 개발하였다. 또한, 개발된 도구를 RCP8.5 기후변화 시나리오에 적용하여 과거 발생한 집중호우 임계치가 미래 발생 가능한 시기와 공간에 대한 시범 분석을 수행하였다. 분석결과, 3일 누적 강우량 587.6 mm 이상인 날이 2080년대 약 76회 발생하는 것으로 분석되었으며, 집중호우는 국지적으로 발생하였다. 개발된 분석도구는 초기 설정부터 분석결과를 도출하는 전 과정이 단일 플랫폼에서 구현되도록 하였다. 더불어 상용 소프트웨어가 없어도 분석결과를 다양한 형식(웹 문서형식(HTML), 이미지(PNG), 기후변화 시나리오(ESR), 통계(XLS))으로 구현되도록 하였다. 따라서 본 분석도구 활용을 통해 기후변화에 대한 미래 전망이나 취약성 평가 등의 활용에 도움이 될 것으로 사료되며, 향후 제공될 기후변화 보고서에 따른 기후변화 시나리오 분석 도구 개발에도 사용될 것으로 기대된다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.1791-1797
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• 2010

The Urban Transit Standardization Program has been supported by the Ministry of Land, Transport and Maritime Affairs. The Program consists of dozen or more projects and thus is quite complex, which implies that the program success heavily depends upon the effective management of various artifacts during the development. Particularly, in the complex systems development, developing and managing requirements is very important throughout the whole system life cycle. The requirements can be the basis of the design changes to be made later as well as the test and evaluation to be performed in the subsequent stages of the systems development. As such, the derivation of the system's requirement based on the needs from the customers, or stakeholder in a broad sense must be done properly. In particular, notice that the system is being developed but the system requirements are not fully available for some reasons. To complement this situation is the purpose of the study. To derive proper requirements effectively in the process of development, this paper proposes to draw up scenario using the output of the system under development and to utilize the use case diagrams and operational scenarios.

• 시스템엔지니어링학술지
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• 제8권1호
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• pp.77-82
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• 2012

In Weapons acquisition process, if the requirements are not clear, it leads to confusion and conflict in business. In the development of next-generation weapons, to define and derive requirements has to start from decision of operational concept. It is difficult task and has many uncertainties. This paper has goal about development of knowledge acquisition process that derive military operational scenario-based requirements acquisition process and framework that classify and save the derived requirements for next project. That framework can generate new class and category, also suggest that verification of requirements. It help to derive and manage the requirements, and make it easy to grasp the requirements. Accordingly, it can help make military requirement plan and weapon acquisition process.

• 한국시스템다이내믹스연구
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• 제5권2호
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• pp.199-216
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• 2004

The present study is aimed at developing the optimal instruments for dispelling the uncertainty factors during the formulation of strategies for corporate development. The objective is the creation of a complete model of strategic analysis, which encompasses both the environment (internal and external) and the management rational component. This model -built on the analysis of three corporate cases - is concretized by a simulation for testing the strategy by the means of software which enables the users to cope with a dynamic and complex corporate environment. The research questions regard the development of a complete strategic analysis, which covers the entire decision-making process; the concrete assessment of the business strategy on the basis of quantitative data: the identification and enhancement of the critical variables of business administration, in such a complex and dynamic reality as the corporate environment.

• Journal of Advanced Marine Engineering and Technology
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• 제27권1호
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• pp.91-99
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• 2003

This paper describes the development of a pc-based machinery space simulator for training and research, relevant to STCW-95. The detailed mathematical modelling process for the actual machinery is discussed and a method to perform effective education and training for the simulator is suggested. The method includes scenario, procedure, exercise and evaluation. The procedure guides the trainee through a sequence of steps designed to meet a specific goal, showing the trainee what must be done and explaining why The exercise enhances understanding for efficient engine management and enable user to perform research for the machinery. The evaluation shows exercise results and feeds back to instructor how to guide the under-performed trainee.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 A
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• pp.307-309
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• 2000

This paper presents development of program for mid-tong term load forecasting in region and district respectively. In this program, at first, the region is classified by KEPCO branch which can be analyzed in light of curl·elation between load characteristics and economic indicator and then, prediction for load density in each region was performed by scenario of economic, population and city plan. Secondly, prediction for load density in each district is performed by methodology which is based on land use method. Finally efficiency for prediction work in each KEPCO branch could be identified by applying the developed program to the Seoul city in real.