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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korea Society of Systems Engineering
Journal Basic Information
Journal DOI :
The Korean Society of Systems Engineering
Editor in Chief :
Chul Whan Kim / Jae Cheon Jung
Volume & Issues
Volume 11, Issue 2 - Dec 2015
Volume 11, Issue 1 - Jun 2015
Selecting the target year
Systems Engineering Approach to Reengineering of YGN 3&4 Safety Depressurization System Retrofit Design
Choi, Mun Won ; Kim, Kyu Wan ; Han, Ki In ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 1~7
DOI : 10.14248/JKOSSE.2015.11.1.001
The purpose of this paper is to present the results of reengineering of the YGN 3&4 (Yonggwang Nuclear Power Plant, Units 3&4) SDS (Safety Depressurization System) retrofit design and to make recommendations for the improvement in design and design procedure implementing the Systems Engineering (SE) process. YGN 3&4 is a basic model for OPR1000 (the Korean standard 1000 MWe plant). The basic model, herein, represents the reference plant for the OPR1000 development. In the middle of the YGN 3&4 construction, the Korean Nuclear Regulatory Body requested a retrofit of this plant with a means to rapidly depressurize the plant in conformance with a severe accident mitigation requirement. For the reengineering of the SDS in YGN 3&4, V-model and functional and physical architectures have been developed. A SE decision making method has been used for the selection of SDS valves. Finally, recommendations have been made to improve OPR1000 design for the improved operation and enhanced safety.
Concept Selection of NPP Construction Delay Risk Assessment Methodology Using Systems Engineering Approach
Hossen, Muhammed Mufazzal ; Kang, Sunkoo ; Jung, JC ; Kim, Jonghyun ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 9~24
DOI : 10.14248/JKOSSE.2015.11.1.009
Construction industry faces a lot of inherent uncertainties and issues and the construction phase of nuclear power project is not free from this risk. This paper investigates promising methodologies to be used on nuclear power plant (NPP) construction schedule delay risk assessment by using entry level systems engineering approach. This study contains how the initial concept for the risk assessment methodology has been developed. In this point of view, this work structured on three main phases: needs analysis (NA), concept exploration (CE), and concept definition (CD) through systems engineering (SE) approach. Traditionally, the SE process is applied to technical development programs but this study opens up a new avenue that SE can also be successfully applied to the development and optimization of the risk assessment model. This study provides a rational and systematic process for developing and selecting the best risk assessment model. This paper selects analytic hierarchy process (AHP) method to assess NPP construction schedule delay risk for international project. As conclusion, the proposed concept and selected method can discriminate successfully and clearly among schedule delay risk assessment methods.
A study on the improvement of MND-AMM for the expanded application to the architecture development of infra systems
Yoon, Tae Hun ; Kim, Ui Hwan ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 25~31
DOI : 10.14248/JKOSSE.2015.11.1.025
Under the relevant regulations, it is required to develop a system architecture for the research and development of the information and communication infra system ; however, the national defense architecture development guides and MND-AF, which provide the instructions on the development and utilization of a system architecture, are still limited to the ITA level and merely providing the guidelines for developing the information system centric architecture. Thus, it is evident that we need a suitable architecture development methodology that corresponds to the growing needs for the communication infra system architecture, as well as the general weapon system architecture. Improving a meta-model is the core of improving a architecture framework. It determines a contents of a architecture and it influences a efficiency and a effectiveness of a architecture. The meta-model of the architecture framework must reflect concerns of various stakeholders and provide a traceability among them. Also, it should be easy to develop and use the architecture by securing the feasibility of the logical relationships and eliminating the duplication of the data inside the architecture. It is implemented through the development of the data-centric architecture and achieved through the "Fit-for-purpose" concept.
The Development of Carrier Aviation Support System Architecture using DoDAF
Lee, Seung Do ; Park, Peom ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 33~39
DOI : 10.14248/JKOSSE.2015.11.1.033
This paper describes a development of aircraft carrier aviation support system architecture using DoDAF. The aircraft carrier, a warship performing a role of mobile sea air base in offensive and defense mission, is super system that is comprised of carrier itself and carrier-based airwing. Performing critical role in step with aviation operations in carrier-airwing interactions, the aviation support system of aircraft carrier is also system of systems. It requires a complex and integrated approach based on systems engineering in establishing concept of this complex systems. In this view, this study establishes an operational scenario and derives operational requirements by identifying aviation operations environment on deck of aircraft carrier. The study presents the operational architecture of the carrier aviation support system by using DoDAF and CASE tool CORE.
Earned Value Management Application Issues and Consideration for Weapon System Development Project
Kuk, Seung Hak ; Kim, Yun Hee ; Kim, Yongsin ; Ju, You Yi ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 41~48
DOI : 10.14248/JKOSSE.2015.11.1.041
It is generally recommended to use EVM as an efficient means for measuring project performance and progress so that the EVMS user could manage his project successfully. In spite of it's favorable intention, most project participants think it as a heavy load or a sub practiced job with low responsibility. Especially in a weapon system R&D project, the manager should consider a possibility to change plans in the middle of the project because of uncertainty coming from properties of the R&D project. Even though there are lots of variables triggering unpredictable troubles in EVM application, EVM still could be a valuable project health indicator. In this paper we introduce a case study of EVM application for weapon system development project. Furthermore, we suggest several solutions for the issues occurring in utilizing EVM.
Introduction of RAMS and Certificate Process for Railway System based on International Standard and Practices
Choi, Yo Chul ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 49~54
DOI : 10.14248/JKOSSE.2015.11.1.049
The RAMS Process is the Internationally required activity to secure Reliability, Availability, Maintainability, and Safety of system which will be acquired as customer requirements. The importance are situations that have been growing gradually. Specially, When developing railway system, the needs of customer about RAMS Process has been being proposed in a variety of railroad business. Through this paper, It introduces the international standards described the RAMS Process and also presents the requirements that should have to comply with it. Furthermore, the necessary activities to get certificate of a Railway system are suggested and not only the various acquisition cases of certificate but also lessons learned by cases in the field of railway signalling system are presented.
A Systems Engineering Approach for Developing An Automated Raw Material Sampling Plant
Kwouk, Ho-Kyun ; Hong, Dae-Geun ; Suh, Suk-Hwan ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 55~65
DOI : 10.14248/JKOSSE.2015.11.1.055
In steel making plant, sampling system for raw material such as iron ore, limestone is necessary for quality control purpose. For the sake of efficiency and productivity, automation of the sampling system is highly desirable. From technical standpoint, the development of the automated system requires multi-disciplinary domain knowledge such as mechanical engineering, industrial engineering, information technology and computer engineering. Up to present time, the development has been mainly carried out by a single domain expert with project manager. The automated system developed in this way caused problems in the final system. This paper suggests a systems engineering approach to the development of automation for raw material sampling plant via a tailored process called Plant Systems Engineering (PSE) Process based on ISO/IEC 15288. Through the PSE process, we could derive right requirements and architecture of the Systems Of Interest (SOI), and we were convinced that the PSE Process can be applied to many other Plant Systems.
A Study on the Promotion of Reliability Test for Imbedded Software of Weapon System
Heo, Kon Yi ; Kwon, Kyoug Yong ; Kim, Tae Sik ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 67~72
DOI : 10.14248/JKOSSE.2015.11.1.067
It has been tested for SW reliability in order to prevent the SW error during the development of weapons systems. According to a recent report, defects such as memory leak, buffer overflow, and null deference occur usually in the development stage, but also in the mass production stage. Although it is intended to enhance the SW test and evaluation to prevent SW failures in the development stage, the non-functional problems like syntax errors are not completely revised due to the limitation of the schedule and costs. In addition, SW failure rate are usually fluctuated by the operational environment through SW upgrade in contrast with HW. In this paper, we propose a method to increase SW reliability in the mass production stage of Korean weapon systems.
The Study of Aircraft Carrier Sortie Generation System(CVSGS) Boundary Analysis
Lee, Seung Do ; Park, Peom ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 73~79
DOI : 10.14248/JKOSSE.2015.11.1.073
This paper describes boundary analysis for modeling Aircraft Carrier Sortie Generation System(CVSGS). An aircraft carrier, as a super system, is a warship going into battle by operating a number of aircraft on deck and it should be lay down a definition about aviation operations interacting between aircraft carrier and carrier air wing in small deck area. For this reason this paper models common aviation support system for generating sortie basic unit of carrier aviation operations unlike to general warship and defines boundaries between this system and aircraft carrier and carrier air wing. This paper analysis activities of aircraft carrier and embarked carrier air wing in carrier aviation operations, and analysis and defines boundaries Aircraft Carrier Sortie Generation System(CVSGS) to perform core functions in interacting between aircraft carrier and embarked carrier air wing.
A Systems Engineering Approach to the Design of Steam Reforming H
Generation System based on Natural Gas: Case of Iron and Steel making Plant
Kim, Joon-Young ; Hong, Dae Geun ; Suh, Suk-Hwan ; Sur, Hwal Won ;
Journal of the Korea Society of Systems Engineering, volume 11, issue 1, 2015, Pages 81~93
DOI : 10.14248/JKOSSE.2015.11.1.081
Steam Reforming H2 Generation (SRH2G) System is a chemical process to produce hydrogen through steam reforming of hydrocarbon. Largely speaking, there are two types of materials for the SRH2G: 1) Oil and coal, and 2)Natural Gas such as shale gas. From the perspective of cost, quality (purity), and environmental burden (pollution), the latter is much more desirable than the former. For this reason, research on SRH2G using natural gas is actively carried out, and implemented and operated in the various industry. In this paper, we develop a natural gas based SRH2G system via systems engineering approach. Specifically, we first derived stakeholder requirements, followed by systems requirements and finally system architecture via a tailored SE process for plant (called Plant Systems Engineering (PSE) process) based on ISO/IEC 15288. The developed method was applied to iron and steel plant as a case study. Through the case study, by the SE approach, we were convinced that a successful system satisfying stakeholders' requirements within the given constraints can be developed, verified and validated.