• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.85-86
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• 2014

암호화란 데이터 전송할 때 타 기관 및 타인에 의한 위법적이고 불법적인 방법에 의하여 데이터 일부가 손실되거나 완전히 변경되는 것을 방지하기 위해 데이터를 기술적으로 변환하여 전송하는 방법이다. 본 논문에서는 중요한 데이터나 정보를 전송하거나 이를 저장 할 때는 반드시 이 정보의 기밀성과 무결성을 보장하여 처리해야 한다는 것을 강하게 나타내고 있다. 이러한 암호화는 전송하는 방항에 따라서 단방향 및 양방향 암호화를 적용한다. 또한 암호화 키는 안전성이 확보 되어야 하며 쉽게 해독되어서는 안된다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.95-96
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• 2014

These information systems projects have unique characteristics such as technology sensitiveness, network effectiveness, embeddedness, and externality, these investment projects have been not taken care of in the field of administration and evaluation. Furthermore, it is not easy to evaluate the results of projects under the circumstances where the conditions for evaluation of budget, time, and data leave much to be desired. But the efficient monitoring and effective analysis of information systems are surely needed for beneficient results of investment in information systems. We propose an effect evaluation model on the basis of restriction to evaluate information systems.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.97-98
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• 2014

Lots of investment projects of new development and redevelopment for information systems have been not taken care of in the field of administration and evaluation, for these information systems projects have unique characteristics such as technology sensitiveness, network effectiveness, embeddedness, and externality. In fact, quantitative and qualitative evaluation of investments in information systems projects are not sufficient. It is critically important to generally evaluate benefits of development or operation cost, urgency, external effects, and so on. In addition, the efficient monitoring and effective analysis of information systems are surely needed for beneficient results of investment in information systems. We propose an economics evaluation model for information systems projects.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.99-100
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• 2014

Even though many projects of new development and redevelopment for information systems are invested, they are not taken care of from the perspective of administration and evaluation. Also, decision makers fall short of not only support the process to check alternatives and select an alternative for investment and but also provide necessary information so as to maximize the effects of investments. That is to say, the suggestion of general direction toward IT investment is debatable. Against this backdrop, we propose a value measurement model to manage information systems.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.07a
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• pp.101-102
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• 2014

Results of Investment mean not results of procedure but the final goal of an organization. That is to say, results focus on success or failure of investment. So, cost effectiveness means financial cost that is affected in order to attain the output of organizational goal. Many enterprises are investing in developing and redeveloping various projects of information systems. But, it is not generally considered to check values with monitoring and evaluating their projects. We propose a new value model for information systems investment.

• Journal of Industrial Convergence
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• v.1 no.2
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• pp.107-124
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• 2003

With rapid growth and competition of electronic commerce through internet, various buying types and business models are being appeared. In this paper, we studied group buying which is new business model to consumer and factors affecting on trust and participation of group buying. The followings are the regression result of this study. First, familiarity factor, customer service factor, seal of security and product value factor made a significant effect on trust. Second, familiarity factor, perceived reputation factor, customer service factor, seal of security and product value factor made a significant effect on participation of group buying. Third, trust of group buying made a significant effect on participation of group buying. In this study, modeling and empirical test were implemented about structure of trust and participation of group buying. We can know where our group buying strategies should focus and which factor we should improve.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.215-216
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• 2014

This paper emphasizes the control of access and authorization based on the roles and the data using activities of users as task performers. Also, it requires to gain the necessary approval in advance for important tasks such as mass inquiry and change on important information to influence the very existence of the whole organization.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.221-222
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• 2014

This paper suggests that confidentiality and integrity of information should be guaranteed when transmitting and storing important information in encryption. Encryption should consider both one-way encryption and two-way one and that encryption key should assure security.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.225-226
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• 2014

In this paper, we look at the association of language with color. The activities related to the psychological experience accompanied by a symbol reminiscent of the action of one color. Thus, we look at the symbol and its therapy and effect.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.707-708
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• 2021

선박은 해운시장에서 가장 중요한 자산이다. 이러한 선박투자에는 대규모 자본조달이 필요하며 시황 및 경기분석을 통해 고점투자를 방지하고 조달비용을 절감하는 것이 중요하며 이러한 결정이 투자 성패를 좌우한다. 본 논문은 K평균 군집화분석을 이용하여 그리스 선주와 한국 선주의 선박투자행태를 분류하고자 한다. 분석의 결과로 선박투자의 주요 요인들을 식별하여 기업차원의 선박투자의 벤티마크 투자전략을 수립하는데 기여하고자 하며 정책적 차원에서 선박투자에 필요한 전략에 대한 시사점을 도출하고자 한다.