• Nuclear Engineering and Technology
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• 제52권5호
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• pp.995-1001
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• 2020

With the development of digital instrumentation and control (I&C) devices, cyber security at nuclear power plants (NPPs) has become a hot issue. The Stuxnet, which destroyed Iran's uranium enrichment facility in 2010, suggests that NPPs could even lead to an accident involving the release of radioactive materials cyber-attacks. However, cyber security research on industrial control systems (ICSs) and supervisory control and data acquisition (SCADA) systems is relatively inadequate compared to information technology (IT) and further it is difficult to study cyber-attack taxonomy for NPPs considering the characteristics of ICSs. The advanced research of cyber-attack taxonomy does not reflect the architectural and inherent characteristics of NPPs and lacks a systematic countermeasure strategy. Therefore, it is necessary to more systematically check the consistency of operators and regulators related to cyber security, as in regulatory guide 5.71 (RG.5.71) and regulatory standard 015 (RS.015). For this reason, this paper attempts to suggest a template for cyber-attack taxonomy based on the characteristics of NPPs and exemplifies a specific cyber-attack case in the template. In addition, this paper proposes a systematic countermeasure strategy by matching the countermeasure with critical digital assets (CDAs). The cyber-attack cases investigated using the proposed cyber-attack taxonomy can be used as data for evaluation and validation of cyber security conformance for digital devices to be applied, and as effective prevention and mitigation for cyber-attacks of NPPs.

• International Journal of Computer Science & Network Security
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• 제21권8호
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• pp.1-12
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• 2021

An operation of an organization is currently using a digital environment which opens to potential cyber-attacks. These phenomena become worst as the cyberattack landscape is changing rapidly. The impact of cyber-attacks varies depending on the scope of the organization and the value of assets that need to be protected. It is difficult to assess the damage to an organization from cyberattacks due to a lack of understanding of tools, metrics, and knowledge on the type of attacks and their impacts. Hence, this paper aims to identify domains and sub-domains of cyber-attack taxonomy to facilitate the understanding of cyber-attacks. Four phases are carried in this research: identify existing cyber-attack taxonomy, determine and classify domains and sub-domains of cyber-attack, and construct the enhanced cyber-attack taxonomy. The existing cyber-attack taxonomies are analyzed, domains and sub-domains are selected based on the focus and objectives of the research, and the proposed taxonomy named AVOIDITALS Cyber-attack Taxonomy is constructed. AVOIDITALS consists of 8 domains, 105 sub-domains, 142 sub-sub-domains, and 90 other sub-sub-domains that act as a guideline to assist administrators in determining cyber-attacks through cyber-attacks pattern identification that commonly occurred on digital infrastructure and provide the best prevention method to minimize impact. This research can be further developed in line with the emergence of new types and categories of current cyberattacks and the future.

• 디지털융복합연구
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• 제18권7호
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• pp.73-84
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• 2020

지능정보기술로 인해 나타날 경제·사회의 혁신적 변화에 대응하기 위해 전 세계가 범국가적으로 다양한 노력을 기울이고 있다. 이에 본 연구는 지능정보사회에서 국가 공무원에게 요구되는 지능정보화 역량을 정의하고, 지능정보화 역량을 구성하는 요소들을 파악하여 역량군과 그에 따른 세부역량을 도출하고자 하였다. 이를 위해 우선 블룸의 디지털 텍사노미에 관한 선행연구, 정보화 역량 및 국가 ICT 관련 정책에 대한 문헌분석을 실시하였고, 블룸의 디지털 텍사노미 관점을 본 연구에 맞게 수정·보완하여 이를 기준으로 지능정보사회에서 국가 공무원에게 요구되는 지능정보화 역량을 정의하고, 잠정적 역량 구성요소를 도출하였다. 그리고 5명의 교육(공)학 및 정보화 전문가, 정보화 업무 담당 공무원을 대상으로 전문가 검토를 실시하였고 그 결과, 7개 역량군에서 22가지 역량이 도출되었다. 본 연구를 통해 도출된 지능정보화 역량은 국가 지능정보화 인적역량개발을 강화하고 활성화하기 위한 기초자료로 유용하게 사용될 것으로 기대한다.

• Nuclear Engineering and Technology
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• 제44권5호
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• pp.471-482
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• 2012

To assess the risk of nuclear power plant operation and to determine the risk impact of digital systems, there is a need to quantitatively assess the reliability of the digital systems in a justifiable manner. The Probabilistic Risk Analysis (PRA) is a tool which can reveal shortcomings of the NPP design in general and PRA analysts have not had sufficient guiding principles in modelling particular digital components malfunctions. Currently digital I&C systems are mostly analyzed simply and conventionally in PRA, based on failure mode and effects analysis and fault tree modelling. More dynamic approaches are still in the trial stage and can be difficult to apply in full scale PRA-models. As basic events CPU failures, application software failures and common cause failures (CCF) between identical components are modelled.The primary goal is to model dependencies. However, it is not clear which failure modes or system parts CCF:s should be postulated for. A clear distinction can be made between the treatment of protection and control systems. There is a general consensus that protection systems shall be included in PRA, while control systems can be treated in a limited manner. OECD/NEA CSNI Working Group on Risk Assessment (WGRisk) has set up a task group, called DIGREL, to develop taxonomy of failure modes of digital components for the purposes of PRA. The taxonomy is aimed to be the basis of future modelling and quantification efforts. It will also help to define a structure for data collection and to review PRA studies.

• Animal Systematics, Evolution and Diversity
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• 제25권1호
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• pp.99-106
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• 2009

Six Korean species of the tribe Campsomerini are taxonomically reviewed: Campsomeriella annulata, Megacampsomeris grossa matsumurai, M. prismatica, M. uchidai, M. schulthessi, M. stoetzneri. Of these, M. grossa matsumurai and M. stoetzneri are new to Korea. A key to Korean genera and species, diagnostic characteristics and digital images are also provided.

• 디지털융복합연구
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• 제10권6호
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• pp.275-281
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• 2012

본 연구는 태스크 온톨로지를 이용한 자동차부품 추천시스템 개발 방법을 제안하였다. 제안한 지능형 추천 시스템은 자동차 부품 조립과정을 학습하도록 하였으며, 자동차부품 추천을 위하여 부품들을 온톨로지 방법으로 구축하였다. is-a Relationship 기반 hierarchical Taxonomy를 이용하여 자동차 엔진을 구성하고 있는 각각의 부품들 사이의 관계를 설정하였다. 각각의 부품은 자동차 전문가의 지식에 의해 각기 다른 가중치 값을 가지고 있게 된다. 가중치는 자동차 추천시스템의 사용자들이 직접 사용하면서 선택한 횟수와 가중치의 곱 연산을 이용한 결과 값을 시스템 내에서 기록하여 순서를 작성하고 결과적으로 우선순위(priority)가 높은 순서부터 사용자에게 출력함으로써 어느 부품의 어느 요소가 중요한지 쉽게 파악할 수 있도록 하였다. 자동차부품 지능형 추천시스템은 사용자가 쉽게 접근하기 어려운 자동차 부품관련 부분을 생성된 데이터를 바탕으로 임의의 부품을 선택했을 때 해당 부품과 밀접한 관계를 가진 부품을 표현하여 특별히 전문적인 지식 없이도 손쉽게 자동차 부품의 조립 및 쓰임새와 중요성을 알 수 있게 해주는 시스템이다.

• 한국의류산업학회지
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• 제23권6호
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• pp.691-708
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• 2021

The emerging Fourth Industrial Revolution has triggered fundamental shifts in the fashion industry. Advanced digital technologies are not only reshaping how the fashion supply chains function, but also requisitioning new skill sets for jobs in this industry. A mismatch in required skills between current and future jobs is a critical issue that needs to be addressed in the fashion industry. Similarly, it is imperative that fashion programs in higher education keep pace with the rapid changes disrupting the fashion sector. Nevertheless, the increasing speed and the magnitude of digital transformation make it challenging to keep fashion curricula up to date. This paper presents the case of a Digital Merchandising course. Using the principles of designing flexible curricula and backward design, this Digital Merchandising course was developed to be flexible and responsive to the changing business environment. Building digital intelligence was the central learning goal for students to accomplish. The paper discusses the conceptual development processes for the course and provides, visual examples of major learning assignments, and a variety of digital tools. Fashion educators are encouraged to consider backward design and flexible curricula design guides as complementary tools to the widely used Bloom's taxonomy.

• 한국컴퓨터정보학회논문지
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• 제21권1호
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• pp.181-189
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• 2016

This study examined three elementary school computing curriculum - the CSTA K-12 computer science standards, the computing programme of the national curriculum in England, and the 2015 national curriculum in Korea - focusing on the educational objectives with the perspective of the revision of Bloom's Taxonomy of Educational Objectives. The CSTA K-12 computer science standards mainly addressed applying procedural knowledge and using digital technology is the main theme. The computing programme in England concentrated on understanding factual and conceptual knowledge of computer science, such as algorithms. The 2015 national curriculum also addressed applying procedural knowledge, but the main focus is making softwares and robots. The findings of this comparative analysis suggest that it is needed to set up concrete educational objectives for lower grade and make them related to the secondary education to make more coherent elementary-level learning objectives. And elementary-level computing learning objectives are needed to be organized with the perspective of knowledge and cognitive process level.

• 한국문헌정보학회지
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• 제52권2호
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• pp.191-220
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• 2018

정보 리터러시와 관련된 인지과정 중심 교육모형(Bloom's taxonomy), 사서 직무교육 내용, 디지털 큐레이션 등에 관한 최근 연구들을 바탕으로 메타리터러시 역량을 도출한다. 웹3.0 정보환경의 상황적 요소를 분석할 수 있는 비판적 사고 능력과 정보 신기술의 적응 능력을 중요한 역량으로 확장시킨 메타리터러시 개념을 기준으로 문헌정보학 전공 대학 커리큘럼을 분석하고 비교한다. 미래지향적 예비 사서의 전문성 배양 측면에서 강조되어야 할 전공 교과목을 진단하고 커리큘럼 개선을 위한 방안을 제시한다.

• Journal of Public Diplomacy
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• 제1권1호
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• pp.5-35
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• 2021

Where government communication in the early 20^th century fell under the umbrella term, "propaganda," the post-WWII era saw a paradigm fracture into public affairs for domestic audiences, public diplomacy for foreign audiences, and psychological operations for hostile audiences. The continued diffusion of the Internet, however, has blurred such distinctions, mending this fractured paradigm. Based on in-depth interviews, this study typologizes government communication to contextualize how various tactics functions within the 21^st century digital media ecology, through an "Information Intervention" taxonomy. In an age where state-sponsored disinformation and computational propaganda are tantamount threats, this paper elucidates the field's fundamental concepts by articulating who communicates with what audience, in what manner, with what intent, and with what desired outcomes.