• Title/Summary/Keyword: Technical Assessment Methodology

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Expert System for Computer-aided Environmental Planning Tasks Methodology of Computer-aided Evaluation (독일의 환경영향평가를 위한 컴퓨터 전문가 시스템)

  • Weiland, U.;Pietsch, J.;Hubner, M.
    • Journal of Environmental Impact Assessment
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    • v.2 no.2
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    • pp.85-93
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    • 1993
  • Aims of the EXCEPT project and tasks and characteristics of the EXCEPT system are presented based on an analysis of urban planning EIAs. The methodology of evaluation in EIAs, which had to be developed in order to program the system, is based on a model of evaluation processes. Evaluation principles, evaluation rates, an environmental model and a model of the projects being planned are presented. The evaluation concern re-unifies the different components of evaluation again.

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Improving the Efficiency of Cybersecurity Risk Analysis Methods for Nuclear Power Plant Control Systems (원전 제어시스템 사이버보안 위험 분석방법의 효율성 개선)

  • Shin-woo Lee;Jung-hee Lee
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.34 no.3
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    • pp.537-552
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    • 2024
  • Domestic nuclear power plants operate under the establishment of the "Information System Security Regulations" in accordance with the Nuclear Safety Act, introducing and implementing a cybersecurity system that encompasses organizational structure as well as technical, operational, and managerial security measures for assets. Despite attempts such as phased approaches and alternative measures for physical protection systems, the reduction in managed items has not been achieved, leading to an increased burden on security capabilities due to limited manpower at the site. In the main text, an analysis is conducted on Type A1 assets performing nuclear safety functions using Maintenance Rules (MR) and EPRI Technical Assessment Methodology (TAM) from both a maintenance perspective and considering device characteristics. Through this analysis, approaches to re-evaluate the impact of cyber intrusions on asset functionality are proposed.

A Technical Assessment of Software Product Line Methodologies (소프트웨어 제품 계열 방법론의 기술적 평가)

  • Park Shin-Young;Kim Soo-Dong
    • The KIPS Transactions:PartD
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    • v.13D no.1 s.104
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    • pp.51-60
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    • 2006
  • Product Line Engineering(PLE) is an effective software development technique which produces applications using core assets. Because of reusing the core assets, PLE can save cost for developing products in a domain but increase reusability. There are about ten PLE methodologies available, but there are not yet common agreements on PLE process and artifacts. This makes developers harder to choose a methodology and to apply it in practice. A comprehensive technical evaluation and comparison on existing PLE methodologies would be essential for practitioners. In this paper, we present a technical assessment of representative PLE methodologies; FAST, SEI SPL, PuLSE, Bosch's PL proceis, FOPLE, ESAPS, KobrA/PoLITe, Alexandria, COPA, QADA. They are compared in the criteria of process, artifacts, instructions, and special features. And we identify common or variable elements between methodologies and confirm elements to be improved in each PLE methodology. The assessment result would be well utilized in defining a practical methodology for PLE projects and in choosing an appropriate methodology among available ones.

Environmental Impact Evaluation of Virgin Pulp Using Life Cycle Assessment Methodology (LCA기법을 이용한 천연펄프의 환경 영향 평가)

  • 김형진;조병묵;황용우;박광호
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.36 no.1
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    • pp.49-60
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    • 2004
  • Life Cycle Assessment for the pulp, which is mainly used as the raw material of fine paper, base paper for food packaging and paper cup, has been carried out in this study to consider environmental aspects by quantifying the environmental emission and to evaluate its environmental impact potential. The system boundary was selected from cradle to gate stage(raw material acquisition, transportation of raw material and product manufacturing) of the product. Environmental impact was divided into 8 categories considering Korean situation: abiotic resource depletion, global warming, ozone depletion, acidification, eutrophication, photochemical oxidant creation, ecotoxicity and human toxicity. In Life Cycle Impact Assessment(LCIA) methodology phase, Ecopoint, Eco-indicator 95 and Korean eco-indicator were used and the results carried out by each methodology were compared. The results from this study were also compared with those of foreign study to verify the reliability of the results. The results of the study could be utilized as the basic data for Environmental Management System(EMS), Design for Environment(DfE) and Type III eco-labeling in the paper and paper-related industry.

Development of Cyber Security Assessment Methodology for the Instrumentation & Control Systems in Nuclear Power Plants (원전 계측제어시스템에 대한 사이버보안성 평가 방법론 개발)

  • Kang, Young-Doo;Chong, Kil-To
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.9
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    • pp.3451-3457
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    • 2010
  • Cyber security assessment is the process of determining how effectively an entity being assessed meets specific cyber security objectives. Cyber security assessment helps to measure the degree of confidence one has and to identify that the managerial, technical and operational measures work as intended to protect the I&C systems and the information it processes. Recently, needs for cyber security on digitalized nuclear I&C systems are increased. However the overall cyber security program, including cyber security assessment, is not established on those systems. This paper presents the methodology of cyber security assessment which is appropriate for nuclear I&C systems. This methodology provides the qualitative assessments that may formulate recommendations to bridge the security risk gap through the incorporated criteria. This methodology may be useful to the nuclear organizations for assessing the weakness and strength of cyber security on nuclear I&C systems. It may be useful as an index to the developers, auditors, and regulators for reviewing the managerial, operational and technical cyber security controls, also.

A Study on the History and the Future Improvement of Environmental Impact Assessment in Korea (우리나라 환경영향평가제도의 발전과정과 개선방안에 관한 연구)

  • Lee, Mu-Choon
    • Journal of Environmental Impact Assessment
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    • v.9 no.1
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    • pp.47-59
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    • 2000
  • The Environmental Impact Assessment(EIA) System has grown up as an adult today in Korea(ROK). It seems that we have only focused on the specific and technical aspects of the assessment without looking at the whole concept during the past 20 years. Thus we have accomplished quantitative growth but not qualitative development at all. This is the right time we should reconstruct the concept and move into the step for qualitative development. It is expected that the corpulence of the EIA system would be enlarged due to the introduction of integrated impact assessment system. It is necessary to introduce a newly designed method into the EIA methodology and improve the Environmental Impact Assessment based on in order to accomplish and manage more effective EIA system. To the conclusion, it is highly necessary to formulate a wholly new system which can be useful to improve the existing various systems and to follow the fundamental concept of EIA.

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Corrosion Assessment by Using Risk-Based Inspection Method for Petrochemical Plant - Practical Experience

  • Choi, Song-Chun;Song, Ki-Hun
    • Corrosion Science and Technology
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    • v.8 no.3
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    • pp.119-125
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    • 2009
  • Corrosion assessment has a number of uses but the use considered here is as a precursor to Risk-Based Inspection (RBI) planning. Systematic methods consisting of technical modules of RBI program were used to assess the effect of specific corrosion mechanism on the probability of failure in equipments of petrochemical plants. Especially in part of the damage and corrosion assessment, screening step involved evaluating the combinations of process conditions and construction materials for each equipment item in order to determine which damage mechanisms are potentially active. For general internal corrosion, either API 510 or API 570 was applied as the damage rate in the calculation to determine the remaining life and inspection frequency. In some cases, a measured rate of corrosion may not be available. The technical modules of RBI program employ default values for corrosion, typically derived from published data or from experience with similar processes, for use until inspection results are available. This paper describes the case study of corrosion and damage assessment by using RBI methodology in petrochemical plant. Specifically, this paper reports the methodology and the results of its application to the petrochemical units using the $KGS-RBI^{TM}$ program, developed by the Korea Gas Safety Corporation to suit Korean situation in conformity with API 581 Codes.

Comparative study of Ecological Risk Assessment : Deriving Soil Ecological Criteria (토양생태계 위해성평가기법 비교연구: 토양생태준거치 산정을 중심으로)

  • Lee, Woo-Mi;Kim, Shin Woong;Jeong, Seung-Woo;An, Youn-Joo
    • Journal of Soil and Groundwater Environment
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    • v.17 no.5
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    • pp.1-9
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    • 2012
  • The purpose of ecological risk assessment in soil ecosystem is to protect ecological receptors and to provide a scheme of efficient management for soil contaminants. Developed countries have already prepared the methodologies of ecological risk assessment by considering their soil properties, land use, and ecological receptors. In this study, we compared the soil ecological risk assessment processes in the similarity and differences in methodology. Four countries, except for USA, adjusted the toxicological data for ecological risk assessment, based on their representative soil properties because the soil properties affect toxic effects to ecological receptors. The soil ecological risk assessment methodology of Netherlands and UK was based on 'Technical guidance document on risk assessment (TGD)' of European Chemical Bureau (ECB). Australia, USA, and Canada developed their autonomous methodology. In the Netherlands, UK, Australia, and Canada, they employed the species sensitivity distribution (SSD) approach if sufficient toxicity data are available. The USA determined the ecological soil screening level by obtaining the geometric mean of toxicological data for three species. Furthermore, all countries consider secondary poisoning in their soil ecological risk assessment. The latest risk assessment methodology of soil ecosystem that this study investigated can be used to explore what Korea needs to develop the Korean ecological risk assessment methodology of soil ecosystem in the future.

Design for Safety :Development and Application of a Formalised Methodology

  • Vassalos, Dracos;Oestvik, Ivan;Konovessis, Dimitris
    • Journal of Ship and Ocean Technology
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    • v.4 no.4
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    • pp.1-18
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    • 2000
  • The paper describes a formalisation of a Design for Safety methodology in an integrated envi-ronment, outlines early developments of a software tool, and presents the results of an appli-cation of the methodology to a case study. The approach adopted attempts link safety per-formance prediction through the utilisation of appropriate technical tools, safety assessment deriving from risk-based methodologies and disparate design activities and issues. Black-board systems have been utilised as the platform in the development of the integrated design environment, allowing safety assessment to become an integral part of the design process. Finally, the case study addresses the application of the developed methodology to three dif-ferent arrangements of a conventional passenger Ro-Ro vessel, with the aim to demonstrate the validity of the process and methodology adopted. The findings are presented and dis-cussed, and recommendations given for the way forward.

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발전시설 사이버보안 평가 방법론 TAM(Technical Assessment Methodology) 분석

  • Jung, Daun;Shin, Jiho;Lee, Chaechang;Kwon, Kookheui;Seo, Jung Taek
    • Review of KIISC
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    • v.30 no.5
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    • pp.45-54
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    • 2020
  • 최근 주요정보통신기반시설 대상의 사이버 공격이 급격하게 증가하고 있다. 특히, 발전시설 주요정보통신기반시설에 사이버 공격 발생 시 전력 공급 중단으로 인하여 대규모 정전사고가 발생할 수 있다. 따라서, 발전시설 대상의 사이버보안 관리가 중요하며, 주기적인 사이버보안 평가가 필요하다. 미국 EPRI(Electric Power Research Institute)에서 발전시설 대상 사이버 보안조치 평가 방법론인 TAM(Technical Assessment Methodology)을 개발하였고, 최근 아랍에미리트(UAE, United Arab Emirates) 바라카(Barakah) 원자력발전소에서 사이버보안 평가를 위해 TAM을 활용하였다. 본 논문에서는 발전시설 사이버보안 평가 방법론인 TAM을 분석하고, 국내 발전시설 사이버보안 평가에 활용 방안을 제시하고자 한다.