• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1999년도 Proceedings of International Symposium on Remote Sensing
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• pp.19-24
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• 1999

This paper addresses a new project being carried out at Satellite Technology Research Center. The purpose of the project is to implement a system which receives, processes and stores 1m resolution satellite image transmitted at over 300Mbps down link data rates. In order to develop such a system, a system operational concept design and a requirements study were being carried out As a result of the operational concept design, system objectives, system context and system functions were defined. The system shall be operated according to the philosophy of maximum automation. rapid processing, reliability, integrity, cost effectiveness, and expandability. The system is divided into twelve independent processes and its behavior is modeled by operational scenario, which are combinations of independent processes. Process information and logs generated by the system shall be stored in databases and data received and generated be automatically archived and managed in a hierarchical storage device. The system shall have redundant components in order to be ready for recovering from sudden system failures. This paper will describe in detail the system operational concept design and the system requirements derived from the operational concept design.

• 아동학회지
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• 제11권1호
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• pp.29-44
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• 1990

The present study investigated the concept of Buddha in 9- 12- year-old children who were in the concrete operational stage. The concept of Buddha was investigated in the following dimensions:form, competence and role of Buddha, feelings toward Buddha, and prayer to Buddha. Questionaire data were gathered from 143 children attending the Bulkwang Sunday School Statistical analysis was by Chi square. The children perceived Buddha as (1) a statue or a monk living in their mind and in heaven; and (2) unrestricted and superhuman but different from the creator, keeping an eye on them all the time and everywhere. The role of Buddha was perceived as one of giving blessing with good things to those who pray. The children had diverse feelings of awe, thankfulness, fear and anger toward Buddha. Most of the children were confident that Buddha would respond to their prayers but a few showed some doubt. Children in the concrete operational stage were less credulous than those in the pre-operational stage. More than half of the childen reported that they experience the fulfilment of their prayers. The children had deep faith in attaining Buddhahood.

• 한국통신학회논문지
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• 제37권1C호
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• pp.109-117
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• 2012

최근 70여 년간의 주요 전쟁을 통해 본 무기체계의 핵심적 변화중 하나는 IT 활용을 통한 무기체계의 복합화 및 첨단화라 할 수 있다. 이러한 무기체계의 복합화 및 첨단화 추세는 IT의 효과적인 활용, 전력화 기간 단축, 복합 첨단 무기체계에 대한 명확한 운용개념(Operational Concept) 수립, 작전요구성능(ROC : Required Operational Capability) 관리 등을 포함하여 무기체계 개발 절차 전반에 대한 혁신적인 개선을 요구하고 있다. 특히, 새로운 무기체계에 대한 명확한 운용개념 수렴과 이를 근간으로 도출된 작전요구성능에 대한 체계적인 관리는 '저비용 고효율'의 무기체계 개발, 나아가 성공적인 군사력 건설을 위한 핵심 선결 과제라 할 수 있다. 본 논문에서는 한국군의 현 작전요구성능 관리절차 분석을 통해 요구공학 (Requirements Engineering) 개념에서의 요구사항 도출(Elicitation) 및 분석(Analysis)과 요구사항 확인(Validation)측면을 고려한 개선 방안을 제안 한다.

• 한국IT서비스학회지
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• 제18권2호
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• pp.37-54
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• 2019

The purpose of this study is to present an evaluation model to measure the clarification level of stakeholder requirements of public sector software projects in the Republic of Korea. We tried to grasp the quality of proposal request through evaluation model. It also examines the impact of the level of stakeholder requirements on the level of system requirements. To do this, we analyzed existing research models and related standards related to business requirements and stakeholder requirements, and constructed evaluation models for the system operation concept documents in the ISO/IEC/IEEE 29148. The system operation concept document is a document prepared by organizing the requirements of stakeholders in the organization and sharing the intention of the organization. The evaluation model proposed in this study focuses on evaluating whether the contents related to the system operation concept are faithfully written in the request for proposal. The evaluation items consisted of three items: 'organization status', 'desired changes', and 'operational constraints'. The sample extracted 217 RFPs in the national procurement system. As a result of the analysis, the evaluation model proved to be valid and the internal consistency was maintained. The level of system operation concept was very low, and it was also found to affect the quality of system requirements. It is more important to clearly write stakeholders' requirements than the functional requirements. we propose a news classification methods for sentiment analysis that is effective for bankruptcy prediction model.

• 한국항공우주학회지
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• 제41권7호
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• pp.588-595
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• 2013

항공탑재 SAR 시스템은 유/무인 항공기에 탑재되어 고해상 영상정보 수집과 지상 이동 표적 탐지의 임무를 담당하는 영상 레이더 시스템으로, 선진국을 중심으로 운용되고 있으며 국내에서도 현재 개발이 진행 중에 있다. 본 논문에서는 항공탑재 SAR 시스템 운용을 위한 운용요구조건 및 운용 요구조건을 만족하기 위한 다중모드 및 실시간 SAR 시스템 운용개념에 대하여 기술한다. 항공 시스템과의 연동개념, 시스템 상태정의 및 천이개념, 임무정의파일 기반 임무수행 개념, 고장진단 및 관리개념, 촬영자료 저장 및 전송 개념에 대해 설명하고, 지상검증시험을 통한 SAR 시스템 운용개념 검증 결과에 대해 기술한다.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제10권6호
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• pp.201-210
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• 2021

무기체계에 탑재되는 항법소프트웨어의 기능요소들은 다양한 무기체계에 공통적으로 활용될 수 있는 가능성이 높은 것으로 식별되었다. 무기체계 항법소프트웨어 SPL 프레임워크는 다양한 무기체계에 적용되는 항법소프트웨어가 갖는 공통의 기능들을 표준화된 플랫폼으로 개발 및 관리하고, 이를 이용하여 유도무기, 무인기, 잠수함 등의 체계별 항법소프트웨어를 개발하는 방법론을 말한다. 본 논문에서는 SPL 기반 항법소프트웨어 개발 프로세스와 통합개발환경을 제시하고, SPL 프레임워크의 운영개념에 대해 설명한다. 프로세스에 관여하게 되는 참여자의 역할을 정의하고 각 역할자별 활동 시나리오를 도출함으로써 SPL 프레임워크의 운영개념을 정의한다. 제시한 운영개념은 여타 도메인에 SPL을 실현하기 위한 구체적인 지침 마련에 활용될 수 있을 것이다.

• 시스템엔지니어링학술지
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• 제11권2호
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• pp.61-73
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• 2015

The early-phase naval ship design demands requirements synthesis rather than design synthesis, which conducts engineering design for several domains on a detailed level. Requirements synthesis focuses on creating a balanced set of required operational capabilities satisfying user's needs and concept of operations. Requirements are evolved from capability based languages to function based language by statistical exploration and engineering design which are derived in the following order: concept alternative, concept baseline, initial baseline and functional baseline. The early-phase naval ship design process can be divided into three passes: concept definition, concept exploration and concept development. Main activities and outcomes in each pass are shortly presented. Concept definition is the first important step that produces a concept baseline through extensive design space exploration promptly. Design space exploration applies a statistical approach to explore design trends of existing ships and produce feasible design range corresponding to concept alternative. It further helps naval systems engineers and operational researchers by inducing useful responses to user and stakeholders' questions at a sufficient degree of confidence and success in the very early ship design. The focus of this paper is on the flow of design space exploration, and its application to a high-speed patrol craft. The views expressed in this paper are those of the authors, and do not reflect the official policy or rule of the Navy.

• 한국군사과학기술학회지
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• 제8권4호
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• pp.41-49
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• 2005

This work describes the ventilative NBC CPS(Nuclear Biological and Chemical Collective Protection Systems). The operational requirements of NBC CPS is derived using systems engineering approach. The NBC CPS system operational architecture which describes the operational concept of NBC CPS is proposed using a computer aided systems engineering tool.

• 시스템엔지니어링학술지
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• 제4권2호
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• pp.45-54
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• 2008

This paper describes an operational concept of the network based future airborne force power using a systems engineering approach. The battlefield is changing to new system of systems that command and control by the network based BM/C4ISR. Also, it is composed of various sensors and shooters in an single theater. Future threats may be characterized as unmanned moving bodies that the strategic effect is great such as UAVs, cruise missile and tactical ballistic missiles. New threats such as low altitude stealth cruise missile may also appear. The implementation of future airborne force power network systems against these future threats is required to complex and integrated approach based on systems engineering. This work developed the operational concepts of the future airborne network system, and then derived the requirements for performing missions effectively. In addition, the scheme of future airborne force power network systems is presented.

• 한국인터넷방송통신학회논문지
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• 제15권3호
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• pp.125-130
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• 2015

본 논문에서는 네트워크에뮬레이터를 활용한 지휘통제시스템의 시험환경 구성, 결과 및 설계반영사항에 대해 다룬다. 정보통신기술의 발달에 의한 정보교환능력과 연산능력의 강화는 네트워크중심전이라는 개념을 가져오게 되었는데, 네트워크중심전에서 무기체계사용자가 빠른 상황판단을 내려 적합한 명령을 내릴 수 있게 지원하는 것이 지휘통제 체계이다. 본문에서는 소프트웨어 기반 네트워크 에뮬레이터중 하나인 dummynet을 활용한 시험환경 구축을 설명하고, 개발된 지휘통제시스템의 운용개념을 요약하였다. 더 나아가 시험 케이스 및 결과에 대해 설명하고, 목표 통신망에서의 제약사항을 극복할 운용개념을 제시하였다. 제안한 방식을 활용하면 항적메시지와 같이 여러 단말기가 같은 데이터를 빠른 주기로 공유할 때 유통 데이터를 크게 감소시킬 것으로 기대된다.