• 경영과학
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• 제16권1호
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• pp.187-201
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• 1999

In this paper, we propose a multi-layered architecture of workflow management systems based on CORBA (Common Object Request Broker Architecture). The system aims to support product development processes in distributed environment. Many companies have started to adopt workflow management systems to manage and support their business processes. However, there are many problems in direct application of those systems to product development environments. These mainly resulted from the dynamic features of product development processes. It is strongly required to support dynamic processes as well as static and procedural ones in an integrated and consistent manner. To meet these requirements, a basic workflow management system has been developed as the core component of the integrated architecture. This performs the basic functions of workflow management system. Second, a dynamic workflow management system based on a bidding mechanism has been developed to manage processes that cannot be easily defined or are likely to be modified, Finally, an SGML workflow management system, which is the third layer in the architecture, has been developed to manage documents processing workflows by integration SGML documents contents and process information into the structured SGML document.

• 한국과학교육학회지
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• 제11권2호
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• pp.133-142
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• 1991

The purpose of this study is to develop a data base system for the information on research and development of science education. As the first step of this study and development, a classification system for the research and development materials was devised after discussing the process of science education and the research and development of science education. The classification system has nine main categories : 1. area, 2. subject, 3. behavior, 4. skill, 5. support, 6. type, 7. materials, 8. language, and 9. the others, each of which has one or two levels of subcategory. This classification system was revised and supplemented through the theoretical analysis by speci.diSts and the practical classification of master's theses and doctoral dissertations from the Department of Science Education, Seoul National University. But it still needs more revision and enlargement through the continuous application and analysis.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2004년도 추계학술발표논문집(상)
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• pp.81-84
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• 2004

본 논문에서는 정형/비정형/XML 데이터의 검색 및 관리 기능을 갖춘 정보검색 관리시스템을 위한 서버와 클라이언트간의 통신 프로토콜을 설계하는 방법에 대해서 설명한다. 제시된 프로토콜은 정보검색관리시스템에 적절하게 설계되었으며, 확장성 및 호환성을 높이기 위하여 XML 메시지로 이루어져 있다. 그리고 통신 처리 효율을 증가시키기 위하여 TCP/IP 기반의 소켓 통신을 한다. 또한 본 논문에서는 이러한 프로토콜을 기반으로 정보검색관리시스템에서 기본적으로 제공하여야 하는 서비스를 정의한다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2003년도 추계학술발표논문집 (하)
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• pp.1477-1480
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• 2003

오늘날 과학기술 정보는 아주 다양한 곳에서 다양한 방식으로 생산 유통된다. 그러므로 원하는 정보의 위치나 각 정보 소스의 사용법을 모르는 사용자들은 일일이 정보 소스를 찾아 들어가 검색을 수행하여야 하는 번거로움이 있다. 본 논문에서는 사용자들에게 여러 곳에 위치한 과학기술 정보들을 한번에 검색하여 제공할 수 있는 과학기술 종합정보 시스템을 구현한다. 이를 위하여 KISTI와 (주)엔퀘스트에서 공동 개발한 분산통합검색 프로토콜을 사용한다. 사용된 분산통합 검색 프로토콜은 XML 기반으로 정의되어 있으며, 원천서버의 위치와 질의 형식 등에 관한 메타데이터를 유지하고 있어 분산된 서버들을 쉽게 통합검색에 참여 시킬 수 있다.

• International Journal of Internet, Broadcasting and Communication
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• 제15권3호
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• pp.219-230
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• 2023

With the development of autonomous driving technology, as the use of software in vehicles increases, the complexity of the system increases and the difficulty of development increases. Developments that meet ISO 26262 must be carried out to reduce the malfunctions that may occur in vehicles where the system is becoming more complex. ISO 26262 for the functional safety of the vehicle industry proposes to consider functional safety from the design stage to all stages of development. Specifically at the software level, the requirements to be complied with during development and the requirements to be complied with during verification are defined. However, it is not clearly expressed about specific design methods or development methods, and it is necessary to supplement development guidelines. The importance of analysis and verification of requirements is increasing due to the development of technology and the increase of system complexity. The vehicle industry must carry out developments that meet functional safety requirements while carrying out various development activities. We propose a process that reflects the perspective of system engineering to meet the smooth application and developmentrequirements of ISO 26262. In addition, the safety analysis/verification FMEA processforthe safety of the proposed ISO 26262 function was conducted based on the FCAS (Forward Collision Avoidance Assist System) function applied to autonomous vehicles and the results were confirmed. In addition, the safety analysis/verification FMEA process for the safety of the proposed ISO 26262 function was conducted based on the FCAS (Forward Collision Avoidance Assist System) function applied to the advanced driver assistance system and the results were confirmed.

• 대한기계학회논문집A
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• 제39권2호
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• pp.203-209
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• 2015

건설기계 산업에서 배기 및 연비 규제를 만족하기 위하여 엔진 시스템이 점차 전자제어화 되고 있으며, 이를 제어하기 위한 EMS(Engine Management System)의 복잡도 또한 증가하고 있다. 본 연구에서는 EMS function 개발 시, 비용 및 개발기간의 단축을 위한 HiLS(Hardware in the Loop Simulation) 시스템을 개발하였다. HiLS 에 내장된 엔진 모델은 크게 Air, Fuel, Torque 및 동력계 모델로 구성되어있고 실시간 엔진 모사를 위하여 Mean value modeling 방법을 적용하였다. 이 연구를 통하여 개발한 HiLS 시스템은 EGR(Exhaust Gas Recirculation) 시스템과 Turbocharger 가 장착된 건설기계용 디젤엔진을 이용하여 정확성을 검증하였고, 테스트 결과 실 엔진 대비 90% 이상의 정확도를 얻었다.

• 한국산학기술학회논문지
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• 제16권6호
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• pp.3807-3818
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• 2015

본 연구는 온라인상에서 대학생의 역량관리와 역량개발을 위한 시스템을 개발하는데 목적이 있다. 이를 위해 역량관련 문헌조사와 기존 시스템 분석으로 역량개발에 필요한 구성요소를 역량진단 및 진로계획, 역량개발, 역량평가분석, 포트폴리오, 커뮤니티, 취업진단, 커뮤니티로 도출하고 시스템 설계의 방향 설정하였다. 시스템은 Windows 서버에서 Microsoft Windows 운영체계로, 데이터베이스 관리 시스템은 ORACLE ver.10, 프로그래밍 언어는 JSP, JAVA를 사용하여 개발되었다. 시스템 개발 후에 시스템의 오류와 개선사항을 검토하여 시스템을 수정 보완하였으며, 최종 개발된 역량개발시스템의 내용적 기능적 활용도를 검증하였다. 대학생 역량개발시스템은 역량활동 촉진기제, 진로개척 능력 함양, 성찰기능으로 지식의 내면화와 주도적 역량개발, 이력관리의 편이성, 학생-교수-동문간의 상호작용이 가능한 온라인 공간으로 활용될 수 있을 것이며, 대학생의 역량개발시스템에 대한 연구가 희소한 현실에서 역량개발을 위한 새로운 대안으로 대학생의 진로교육과 역량교육 발전에 도움이 될 것이다.

• 한국IT서비스학회지
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• 제20권1호
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• pp.41-54
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• 2021

The SW-centered battlefield management information system R&D project takes a long period of 5-10 years or more by applying a complex and rigid batch acquisition strategy. In order to solve this problem, it is necessary to institutionalize a rapid and flexible battlefield management information system R&D project management procedure applying agile development methodology, and a government project management organization and contract management method to support it In this study, we analyzed the case of applying the Agile development method centered on Scrum to the US SW-centered weapon system R&D project and the characteristics and problems of the battlefield management information system R&D project in Korea, and suggested improvement measures as follows. First, the battlefield management information system R&D model applies the hybrid development method, and the system requirements analysis and system structure design use the existing waterfall development procedure, and the agile method is applied from the SW requirements analysis to the system integration stage. Second, flexible adjustment of performance, schedule, and cost by organizing an Agile IPT in which military (requirements) - DAPA (project management) - developer - functional specialized organizations (test and evaluation, quality, government research institutes, etc.) participate. Third, improving the Basic Order Agreement so that it can be applied to agile R&D.

• 한국군사과학기술학회지
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• 제10권4호
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• pp.97-104
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• 2007

In this paper, we have proposed an integrated aircraft development environment which can support virtual design and development for Systems Engineering and IPPD(Integrated Product and Process Development). We have also proposed the ViMS(Virtual Mockup System) which can perform a system design review on an integrated aircraft development environment. The ViMS is an integrated virtual design support system with immersive design review functionality to make a virtual mockup instead of a physical mockup through the virtual reality technology. The functionality of the ViMS consists design data management, design technology, design verification, and design assessment. We have described the detailed development artifact, case studies and conclusions of using the ViMS functionality.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2002년도 춘계공동학술대회
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• pp.1079-1084
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• 2002

Systems engineering technology development program for Korea next-generation high-speed railway(KNHR) system in progress is a national large-scale system development program that is not only a large-size and complex but also multi-disciplinary in nature. Using the RDD-IOO, a systems engineering tool, the KNHR program can establish requirements traceability and development process management in the course of development. This paper presents the results from a computer-aided systems engineering application to KNHR system technology development project over the three years of activities. The traceability among the system design database in the vertical direction of SE process, as the results of the first year and the second year research was accomplished. The database in both the requirement management domain and the project management domain was developed and set up the traceability between them in the horizontal direction of the SE process in the V model as the results of the third year research. Therefore, KNHR design database was built to support the life-cycle management of the system as well as to reuse the knowledge in future programs. In the following development phase, this database will be utilized to accomplish the test and integration activities providing a baseline database. The outcome of the study contributes to the establishment of the model-based systems engineering approach as a best practice in the accumulation and advancement of systems engineering technology for railway system development.