• 한국IT서비스학회지
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• 제9권4호
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• pp.1-18
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• 2010

Plural governance system in which firms use vertical integration and market governance simultaneously are widely used across various marketing context. Typical examples of plural governance include franchise systems, in which firms own and operate some unit themselves while licensing the operation of some of their units to franchisees. Despite many scholars have attempted to explore the structure of plural governance over decades, there are few insights into its determinants. In this study, we examine the relationship between the proportion of outlets franchised and several franchisor's characteristics based on the perspectives of transaction cost analysis, resource scarcy theory and agency theory. Using franchisor data in Korean Franchise Disclosure Document over the 2006-2009 period, we test the effect of franchisor size, system growth rate, franchise fee, initial investment, and risk sharing on the proportion of outlets franchised. Except for the effect of system growth rate, the results of a series of multiple regression analysis supported the negative effects of franchisor size, franchise fee, initial investment and risk sharing on the proportion of outlets franchised.

• 한국시뮬레이션학회논문지
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• 제31권1호
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• pp.19-27
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• 2022

본 연구는 하나의 공급자와 하나의 소매자가 구성된 분산화된 공급사슬에서 도매가 계약과 수익공유 계약, 수량유연 계약, 판매환급 계약을 비교·분석한다. 선행 연구의 결과에 따라 공급사슬 조정(coordination)이 이루어지는 각 조정 계약의 모수를 설정하였다. 이들 모수의 조합에 대해 @RISK를 활용하여 시뮬레이션을 수행하고 공급사슬 조정을 이루는 상태 하에서 계약의 성사율과 각 계약에 유리한 참여자를 평가한다. 결과적으로 수량 유연 계약은 소매자 쪽에 가장 유리하고 판매환급 계약은 공급자 쪽에 가장 유리하다. 수익공유 계약은 공급자와 소매자의 이익 재배분에 가장 넓은 범위에서 선택할 수 있어 더 유연하게 사용할 수 있음을 밝혔다.

• 품질경영학회지
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• 제51권2호
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• pp.155-170
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• 2023

Purpose: Nowadays, the risk assessment system is widely used in many industrial and public areas to reduce the possible risks. The system is used to determine the priorities of the government quality assurance works in Defense Agency for Technology and Quality. However, as the risk assessment system is used for other purposes, there are some items that need improvement, and in this study, we propose improvement plans by benchmarking the risk assessment systems of other institutions. Methods: In this paper, first, the procedures of risk assessment system used in many industrial sites were reviewed, and how each institution specialized and applied the system. Afterwards, by benchmarking various risk assessment systems, an improvement plan on how to operate the risk assessment system in the case of government quality assurance for centrally procured military supplies was presented, and practical application cases were presented to prove the usefulness of the improvement plan. Results: The proposed risk assessment system differs from the existing system in five major aspects. First, inputs, outputs, and key performance indicators were specified from the systematic point of view. Second, risk analysis was analyzed in four dimensions: probability of occurrence, impact, detection difficulty. Third, risk mitigation measures were classified, control, transfer, and sharing. Fourth, the risk mitigation measures were realized through document verification, product verification, process verification, and quality system evaluation. Finally, risk mitigation measures were implemented and the effectiveness of the risk mitigation measures was evaluated through effectiveness evaluation. Conclusions: In order for the risk assessment procedure proposed in this study to be applied to actual work, it is necessary to obtain the consent of the person involved in the work due to the increased time for risk identification and preparation of the government quality assurance log, and a change in the information system that performs the actual work is required. Therefore, the authors of this study plan to actively perform internal seminar presentations and work improvement suggestions to apply these research outputs to actual work.

• The Journal of Asian Finance, Economics and Business
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• 제6권1호
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• pp.289-301
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• 2019

This paper explores community-based flood disaster risk governance by applying a sensemaking approach. The conceptual sensemaking framework consists of individual experience, dialogue, and socialization components, which together comprise an interconnected system. This study presents a method for applying this framework by using a concerns table and a SWOT analysis to examine the concerns of residents living in a flood plain. A series of community-based workshops on flood risk reduction was conducted with residents of the flood-prone Muraida community in Shiga Prefecture, Japan. During the workshops, residents' concerns regarding flood risk surfaced. This study used an idiographic approach to examine the proceedings of the workshops. SWOT issue analysis was used to examine the strengths and weaknesses in the Muraida community's internal capacities, and examine the opportunities and threats in the external capacities (e.g., local government). Additionally, a SWOT strategy analysis was conducted to identify strategies for knowledge sharing and development of cooperative countermeasures that can be undertaken between the Muraida community and the local government. The results show that the concerns table can not only summarize the main concerns of all workshops, but also provide an understanding of alternative flood risk countermeasures that can be carried out.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2941-2948
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• 2011

Rialway passengers and public, workers typically have high potential on death and injury accidents, because they are to be frequently adjacent to train or train operation. In order to effectively reduce the risks associated with the passengers, the public, and the workers, a systematic risk assessment should be performed to evaluate the hazards that contribute to the accidents. This paper describes the effect of risk assessment web base system and the extension need of the classification of "The regulation of railway accident report and information in Korea", application for national or railway safety operator, sharing railway safety information.

• 한국멀티미디어학회논문지
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• 제25권6호
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• pp.793-806
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• 2022

As the IMO introduced MASS (Maritime Autonomous Surface Ships), ISO(International Organization for Standardization) announced ISO 19847 of a maritime data sharing standard for collecting and remotely managing data of ship systems. Previous literature evaluated the risk using HAZOP for ISO 19847 and proved that risk assessment is useful through experiments. However, redundancy of ISO 19847 ship data server which is one of the risk reduction method suggested in previous literature, was designed but couldn't tested due to the limitations of the conditions. So, in this study, to prove the usefulness of the ship data server redundancy of ISO 19847 which was not tested in previous literature. It based on the design of previous literature, and the network of ship data servers was modeled using the SES/DEVS format and simulated using the DEVS# open source library.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.450-452
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• 2022

본 논문에서는 최근 스마트농업의 중요한 이슈로 떠오르고 있는 스마트 축산분야의 가축 유행병 서비스 표준 모델을 제시한다. 네트워크를 이용하여 전 세계적으로 유행하는 가축 전염병 질병 리스크를 파악해서 서비스 유저들에게 관련 모델을 제공하여 실질적으로 가축 소유자들에게 경제적인 이득을 제공하고 궁극적으로 국가 농축산업 경제에도 도움 될 수 있을 것으로 판단된다. ICT와 접목하여 제시되는 가축전염병 서비스 표준모델과 가축 전염병 위기완화 표준모델 공유 방법은 향후 국내 및 국제 농축산업 분야에 표준에 적용하려고 지속적 연구가 진행될 예정이다.

• 한국시뮬레이션학회논문지
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• 제28권3호
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• pp.65-74
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• 2019

분기-접합 생산시스템은 오랜 기간 동안 연구되어왔지만, 개별 또는 공유 유한 버퍼를 갖고 일반공정시간 분포를 따르는 시스템에 대한 분석은 제한적이다. 일반적으로 대기행렬 이론적 분석법은 유한 버퍼를 갖는 시스템에 대한 분석에는 어려움이 있다. 본 연구에서는 max-plus 대수적 분석법을 활용하여 일반 공정시간을 갖는 버퍼 공유 분기-접합 생산시스템을 분석하였다. 하지만, 이러한 분석법은 특성치 계산의 관점에서는 적절한 방법을 제공하지 못하기 때문에 max-plus 대수로 도출된 표현식과 @RISK 소프트웨어를 활용하여 스프레드시트 시뮬레이션 모형을 개발하였다. 시뮬레이션 실험을 통해 유한 버퍼와 두 가지 차단규칙인 BBS(통신차단)과 BAS(제조차단) 하에서 시스템 대기시간에 대한 몇몇 특성을 비교 분석하였다.

• 융합보안논문지
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• 제16권7호
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• pp.61-68
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• 2016

국네트워크를 통한 데이터의 공유로 인해 각종 분야에서 첨단 응용 연구 성과를 보여 왔다. 그만큼 이에 적합한 안정적 데이터 공유 환경의 필요성 역시 꾸준히 제기되었다. 본 연구에서는 이러한 필요성에 따라 등장한 여러 성과 중 일방향 통신 지향 프로토콜에 대해 다룬다. 이 프로토콜은 오직 일방향만으로 데이터를 전송토록 하는 체계이다. 이는 불확실하고 잠재적인 위협 요소로부터 시스템을 지켜낼 가능성이 높아지지만, 데이터에 대한 확인/응답(ACK) 패킷을 전혀 받을 수 없다. 따라서 TCP, ICMP와 같은 양방향 프로토콜이 제대로 작동하면서 실질적인 통신이 이루어지도록 해야 한다. 이에 따라 본 연구에서는 인터페이스 계층, 인터넷 계층, 전송 계층에 대해서 각각 존재하는 프로토콜별 가능한 시나리오에 대해 분석하고 각각의 해결방법에 대해 접근하였다.

• 한국컴퓨터정보학회논문지
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• 제23권10호
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• pp.73-80
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• 2018

The shared economy began with the concept of sharing the physical and intellectual assets of individuals with others. Nowadays, the concept of shared economy is becoming one of the industries as an enterprise type. Especially, with the development of the Internet and smart devices, various forms of shared economy have been developed in accordance with the need of sharing of individual income. Digital content is also a shareable commodity and it is seeking to utilize it as an item of shared economy. Accordingly, when digital contents are used as a shared economy, there are various possible threats -security threats that may arise in the course of transactions, potential for theft, alteration and hacking of contents. In this paper, we propose transaction method and content protection method using block chain-ethereum technology to reduce security threats and transparent transactions that can occur in digital contents transactions. Through the proposed method, the trust of the consumer and the supplier can be measured and the encryption can be performed considering the characteristics of the data to be traded. Through this paper, it is possible to increase the transparency of smart transaction of digital contents and to reduce the risk of content distortion, hacking, etc.