• 시스템엔지니어링학술지
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• 제13권2호
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• pp.42-48
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• 2017

OCD (Operational Concept Document) is very important in system development. To develop OCD we should answer questions about, what template to use, what is the overall process to develop OCD, what kinds of diagrams we should use and how can we validate the OCD. To answer about the template we compared tow industrial guide on operational concept development and tailored it. For development process, we proposed a comprehensive process which satisfies the requirements of the project context. For use of proper diagram, we analyzed many kinds of diagrams used in representing behavior of system and choose some diagrams which best fit for our purpose. Finally we established validation criteria for operational scenario and requirement texts in operational concept documents.

• 시스템엔지니어링학술지
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• 제16권2호
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• pp.118-130
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• 2020

Modern weapon systems are composed of complex systems(System of Systems) and require a complex and advanced operational concept that performs missions through interoperability with various weapon systems. In order to derive the operational concept of the weapon system that the military wants to acquire (i.e., single mission, component operation, Joint and Alliance operations), it is necessary to identify the system related to the weapon system, environmental factors and restrictions of the weapon system to be developed. Through the derivation of the operational concept, the weapon system acquisition agency can reasonably and accurately extract various and complex requirements. In this paper, we propose a complementary method of using MND-AF to OCD and ORD required in weapon system acquisition process. MND-AF can increase the understanding and consensus of business stakeholders (users, acquirers, developers, etc.) by showing the results of weapon system analysis from various perspectives. We compare the items in the standard form of OCD and ORD with the MND-AF outputs.

• 시스템엔지니어링학술지
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• 제9권1호
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• pp.13-23
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• 2013

Operational Concept Descriptions or Document(OCD) shall be developed to understand stakeholder's desire for to-be-delivered system. But there is little study on methodology of OCD generation and many developers do not understand importance of OCD in Korea. According to Nicole Roberts' industry(18 U.S. companies and organizations) survey, only 30% of system development projects had OCD, too. Researchers and developers have opposing views regarding the generation of an OCD. Many researchers believe that the development and use of operational concepts at the start of large projects is essential. Alternatively, developers may view the OCD as a burden to the development process rather than an enabler due to the extensive documentation requirement. In this paper a couple of OCD guidelines were investigated to clarify how to build a CONOPS effectively and what to include. Finally, OCD for rotorcraft based Personal Air Vehicle System(PAVS) was developed as a case study. In the future, a template for generating OCD appropriate to Korean environment could be proposed.

• 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.

• 한국의사학회지
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• 제28권1호
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• pp.39-51
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• 2015

Naeuiweon (內醫院) is the royal medical office of Joseon Dynasty. "Naeuiweonshikrye (內醫院式例)" contains various regulations of Naeuiweon in early 19th century. Therefore, attention has been utilized by several researchers. However, these studies show partial side of this document. The purpose of this study is to introduce and analyze contents of "Naeuiweonshikrye". Additionally, as through the body of the written time of the contents was analyzed this document. The authors of this study found that. First, "Naeuiweonshikrye" is estimated in the volume whether modified or supplemented prior "Naeuiweonji (內醫院志)". Second, the written time of this document is about Sunjo'10(1810). Third, "Naeuiweonshikrye" is the primary document that provides a wealth of information about the actual operational and regulatory Naeuiweon (內醫院) in the early 19th century. There is no other material information has been recorded only in the literature. For example, there are several building names in the Naeuiweon. Finally, this document informs the concept of pharmaceutical terminology used in Joseon Dynasty.

• 한국군사과학기술학회지
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• 제14권3호
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• pp.432-440
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• 2011

Operational Mode Summary/Mission Profile(OMS/MP) is a document to quantify the operational and maintenance requirements based on the future operational environments and its mission and How to Fight concept in the development of the weapon system. It is important as a key document for the RAM goal setting in the early phase of weapon system development. The paper presents a systematic and practical submarine OMS/MP model processes with a deep analysis of relevant case studies and current status domestic and abroad. Especially, it proposes the unique Scenario Planning and Switch on List techniques with real case studies which have recently performed. The paper will contribute not only the basis of improved requirements for the development of weapon system but also the sustainment of readiness with the enhancement of RAM and reduction of total life cycle cost.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2023년도 춘계학술대회
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• pp.162-163
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• 2023

As the development of the 4^th industiral revolution in the maritime industry has progressed, the technical development of autonomous ships, and the development of international regulations have been accelerated. In particular, the IMO Maritime Safety Committee(MSC) has established a road-map for the development of the non-mandatory goal-based MASS instrument(MASS Code) and started developing a non-mandatory MASS Code at MSC 105^th meeting. Many countries are actively participating in the Correspondence Group on the development of MASS Code, and the development of detailed requirements for MASS functions in the MASS Code is underway. Especially, the concept of "Mode of Operation" for MASS functions was mentioned in the Correspondence Group for the first time, and it is expected that discussions on these modes will be conducted from the IMO MASS JWG meeting to held in April 2023. The concept of "Mode of Operation" will be useful in explaining MASS and MASS functions and will be discussed in the future for the development of MASS Code. This paper reviews the contents of the IMCA M 220 document, which provides guidelines on operating modes, to conduct research on the benchmark for setting the operating modes of MASS.

• 한국항행학회논문지
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• 제28권1호
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• pp.109-115
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• 2024

도심항공 모빌리티 (UAM; urban air mobility) 서비스를 위한 한국의 K-UAM 운용개념서에서는 초기 운용 과정에서 항공음성통신 뿐만 아니라 4G 및 5G 이동통신의 활용을 고려하고 있다. 본 논문은 UAM 교통관리를 위한 통신 성능 요구사항을 설정하기 위한 방법론을 연구하였으며, 초기 UAM 운항을 위한 통신 성능 요구 항목과 수준을 제시하였다. 이를 위해 K-UAM 운용개념서와 미국 FAA 운용개념서의 UAM 발전 단계별 운영 시나리오를 분석하고, 다양한 UAM 이해관계자 간에 UAM 운용을 위해 전달해야 할 메시지의 종류를 식별하였다. 또한, 이러한 메시지의 전송을 위해 필요한 통신 링크 종류, 데이터 크기, 전송 주기, 허용 가능 지연, 가용성 등을 고려하여 통신 성능 요구사항 초안을 도출하였다. 본 연구 결과는 UAM 서비스를 위한 통신 요구사항 설정 관련 최초 연구로서 향후 UAM 전용 통신망 설계 및 필요 주파수 소요량 산출과 같은 분야에서 유용하게 활용될 것으로 기대된다.

• 한국항행학회논문지
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• 제20권4호
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• pp.336-343
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• 2016

미래항공항행시스템 (FANS; future air navigation system) 위원회는 전통 시스템의 한계를 극복하고 세계적으로 항공교통관리 발전을 가능하게 할 새로운 시스템 개발이 필요하다고 결정하였다. 급격한 항공기 교통량 증가를 수용하고 안전한 항공 운항의 효율성을 극대화하기 위해 ICAO에서 성능기반 항공통신 및 감시 (PBCS; performance based communication and surveillance) 제도를 새롭게 규정하고 적용하도록 권고하고 있다. 하지만 현재 국내의 경우 무선 데이터 링크를 사용하지만, PBCS의 도입이 정상적으로 수행되지 않는다. 본 논문에서는 PBCS 개념을 살펴보고, 해외 항공선진국이 PBCS를 적용 사례를 살펴본다. 또한 국내에서 PBCS를 도입하기 위한 국내 현황과 문제점을 분석하고 향후 정책방향에 대한 방안을 소개한다.

• 대한공업교육학회지
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• 제34권2호
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• pp.161-178
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• 2009

이 연구는 공과대학생들의 공학에 대한 태도를 측정하기 위한 도구 개발을 위해 수행되었다. 연구방법은 문헌연구를 기초로 공학에 대한 태도의 조작적 정의와 범주를 마련하였고 공학에 대한 태도 측정 문항을 개발한 후, 공과대학 재학생을 대상으로 요인분석을 실시하였다. 이에 따른 연구의 결과는 다음과 같다. 이 연구에서는 태도의 본질적 측면에 근거하여 인지적 변인으로는 '공학의 가치에 대한 태도'와 정의적 변인으로 '공학에 대한 일반적 태도와 공학 학습에 대한 태도', 행동적 변인으로 '공학 활동에의 참여'로 선정하였다. 이에 따른 하위영역은 첫째, 공학의 가치에 대한 태도에는 학문/직업적 가치, 사회적 가치, 개인적 가치로 분류되었다. 둘째, 공학에 대한 일반적 태도와 공학학습에 대한 태도에는 일반적 태도, 공학학습에 대한 태도(자아효능감, 두려움, 흥미, 협동)로 분류되었다. 셋째, 공학 활동에의 참여는 공학 학습에 대한 태도로 분류하였다. 이러한 검사 도구를 현장에 적용한 결과, 공학학습에 대한 태도 중에서 자기 개념과 자아효능감을 자아효능감으로 통합하고 1개 문항의 독단적 요인 수는 제거하였으며, 요인분석(Verimax)을 통해 최종적으로 3개 변인과 9개 하위영역, 39개 문항으로 구성된 대한 일반를 '공학에 대한 학에 대한 일반'(Instrument of Assessment the Attitude toward Engineering, IAAE)로 명명하였다. 이 측정 도구는 공과대학생의 공학에 접근하는 태도를 알 수 있는 기초자료로 활용하면 유용하리라 판단된다.