• Journal of Information Technology Services
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• v.15 no.1
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• pp.113-129
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• 2016

Recently, as Information System projects tend to be more complex, the importance of Information System Audit increases. In the same context, the need for the resident IS Audit also increases, which is supposed to deal with the possible risks and urgent issues by providing the appropriate support and timely coordination during IS project. Basically, for the effective IS Audit, the IS audit team members should be able to understand such a business context as work characteristics, business knowledge, goals, and culture of the organization. The audit team members should also be able to share the various knowledge of Information Technology and audit procedure with the owner of the project. Especially, for the resident audit, it is more important to fill the gaps in expertise between project owner and audit team. However, any studies on the need of common knowledge base (knowledge complementarities) in the IS audit have not been done so far. The purpose of this study is to analyze whether the knowledge complementarity based on inter-organizational communication between the project owner and audit team members makes an effect on the fidelity and performance of IS audit. In order to do this, the relationship among inter-organizational communication and knowledge complementarity, the fidelity of IS audit service, and performance of IS audit has been analyzed, using Structural Equation Model. The result shows that all the relationship is significant, which means that knowledge complementarity between the two different interest groups should be an effective factor on the fidelity and performance of IS audit. This result implies that, for better quality of IS Audit service, how to acquire the knowledge complementarity between the project owner and Audit team should be considered seriously as well as systematically in the process of IS Audit.

• Journal of the korean academy of Pediatric Dentistry
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• v.3 no.1
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• pp.52-62
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• 1976

The purpose of this paper is to present the clinical findings obtained from the fourth year epidemiological study on dental caries prevalence in Korean children and to compare them with those from the first year study made in 1973 by Paik. The oral examination was performed for this study on 1,451 children, composed of 808 boys and 643 girls, at "K" elementary school located in Seoul, Korea. The following conclusions are drawn: 1. The df person rate of primary teeth is 90.30% for boys, 90.67% for girls, and 90.43% for all, which is 7.41% higher than the first year value. 2. The dft index per child of primary teeth is 4.26 for boys, 4.30 for girls, and 4.28 for all, which is 0.42 higher than the first year value. The dt index is 2.49 for boys, 2.44 for girls, and 2.47 for all, which is 0.59 lower than the first year value. The ft index is 1.77 for boys, 1.86 for girls, and 1.81 for all, which is 1.01 higher than the first year value. 3. The DMF person rate of permanent teeth is 70.24% for boys, 73.05% for girls, and 71.49% for all, which is 16.28% lower than the first year value. 4. The DMFT index per child of permanent teeth is 2.08 for boys, 2.50 for girls, and 2.27 for all, which is 1.31 lower than the first year value. The DT index is 1.44 for boys, 1.64 for girls, and 1.53 for all, which is 1.53 lower than the first year value. The FT index is 0.61 for body, 0.85 for girls, and 0.71 for all, which is 0.21 higher than the first year value. The MT index is 0.02 for all, which is statistically the same as the first year value.

• Information Systems Review
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• v.13 no.2
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• pp.73-87
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• 2011

This study measures the research productivity of IS researchers in South Korea. In this study, we select 11 leading IS journals, those are MIS Quarterly(MISQ). Information Systems Research(ISR), Journal of Management Information Systems(JMIS), Journal of the Association for Information Systems(JAIS), European Journal of Information Systems(EJIS), Information Systems Journal(ISJ), Decision Support Systems(DSS). Communications of the Association for Information Systems(CAIS), Information and Management(I&M), Journal of Strategy Information Systems(JSIS), and Journal of Information Technology(JIT). We analyzed the published articles of IS researchers in South Korea between 2007 and 2009 using scientometric techniques for measuring research productivity. The findings of this study provide evidences that IS research productivity has become a comprehensive information to business tool to assist advertizing of electing student of IS department and university, and take a person into IS professor in the IS job market. IS productivity research on Korean IS researcher rarely showed. The unique study showed valuable contributions for academicians to provide a better comprehension of publishing trend of leading IS journals.

• 한국경영정보학회:학술대회논문집
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• 2007.11a
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• pp.117-122
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• 2007

Recently, as the management environments are changing rapidly and the uncertainty is becoming larger, the needs of internal control for management and IS become stronger. In order to construct a new internal control system for IS, it is necessary to evaluate the former research of the system. This study emphasizes the importance of effective internal control system, presents a conceptual framework for the preceding factors to consider, and verifies empirically the framework. This study sets the organization citizenship behavior, IS innovation resistance, and IT capability from the viewpoint of Socio-Technical system as the preceding factors for the effectiveness of internal control system. A research model, affecting the above factors on IS capability as a mediating variable of the internal control effectiveness for the use of IS, is set up. PLS-Graph 3.0 is used to verify the model. We found that the internal control effectiveness have affirmative effect on information capability, a surrogate variable of the IS effectiveness and a mediation effect is meaningful.

• International Journal of Contents
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• v.7 no.1
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• pp.37-44
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• 2011

This research attempts to analyze brand placement in game. Brand placement, being acclaimed as a new beneficiary model in game industry, is raising important mean of advertising. For development of game industry, the interdisciplinary study between game and advertising is indispensible. Therefore, the purpose of this study is to find creative types of brand placement in game for illuminating how advertising works in game contents. The results showed three types of brand placement in game. They are contextual type, prominent type and independent type. Contextual type is one where the brand is present within the game contents without being formally expressed: it plays a passive role. Prominent type is one where the brand is present within the game contents with being formally expressed: it plays an active role. Independent type is one where the brand is present within the game contents with being formally expressed but it is not related with the program: it plays an additional role. The research showed, among these three types, a prominent type is becoming mainstream of brand placement in game. In other words, the prominent type of brand placement is the most effective beneficial alternative in game industry.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2001.10a
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• pp.326-329
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• 2001

정보기술의 발전은 기업이 혁신적으로 비용을 감축하거나, 고객에게 전혀 다른 차원의 서비스를 제공할 수 있는 등의 과거에 갖지 못했던 새로운 능력을 제공하고 있다. 이러한 기업에게 요구되는 정보 시스템 (Information System : IS)의 새로운 능력들이 성공적으로 확보하기 위해서는 기업 IS 자체의 혁신이 선행적으로 요구된다. 최근에 이러한 IS 혁신 및 IS를 통한 경쟁적 우위의 확보를 위해서 IS 인적자원 혁신의 중요성이 강조되고 있다. 그러나 IS 인적자원 혁신에 대한 연구는 초기 단계에 있어 IS 인적자원 혁신을 위한 영향요인에 대한 연구는 전무한 실정이다. 따라서 본 연구는 조직혁신, IS 혁신, 인적자원 혁신에 대한 문헌 연구를 통하여 IS 인적자원 혁신의 영향 요인을 환경적 요인, 전략적 요인, 조직적 요인, 개인적 요인으로 분류하여 IS 인적자원 혁신의 영향 요인을 도출하고, 이들 영향 요인들이 IS 인적자원 혁신과정에 어떠한 메커니즘을 통해 영향을 미치는지 나타낸다.

• Journal of the Korean Professional Engineers Association
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• v.34 no.4
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• pp.65-68
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• 2001

The role of information system(IS) audit is growing more important according to rapid change of Information technology. This article is to introduce what is IS audit, purpose and effect of IS audit. Now most clients of private IS audit services companies are the public sector. Korean public sectors invest a lot of money to build or implement their information system. Most of their systems are developed by system intergration companies. But they do not have professional engineers to evaluate and review outsourced information system. Therefore they must use outside private professional engineers for sysem auditing. We, including writer, established the first IS audit sevice company in Korea on September in 1997. After that about 15 IS audit service companies are established until now. The effect of IS audit is highly evaluated In public sector by the clients Most clients think IS audit service contributed to upgrade the quality of software and standard the methodology of developing system

• Bulletin of the Korean Mathematical Society
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• v.49 no.5
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• pp.989-996
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• 2012

Let R be a commutative Noetherian ring and let I be an ideal of R. In this paper we study the amalgamated duplication ring $R{\bowtie}I$ which is introduced by D'Anna and Fontana. It is shown that if R is generically Cohen-Macaulay (resp. generically Gorenstein) and I is generically maximal Cohen-Macaulay (resp. generically canonical module), then $R{\bowtie}I$ is generically Cohen-Macaulay (resp. generically Gorenstein). We also de ned generically quasi-Gorenstein ring and we investigate when $R{\bowtie}I$ is generically quasi-Gorenstein. In addition, it is shown that $R{\bowtie}I$ is approximately Cohen-Macaulay if and only if R is approximately Cohen-Macaulay, provided some special conditions. Finally it is shown that if R is approximately Gorenstein, then $R{\bowtie}I$ is approximately Gorenstein.

• Journal of Agricultural Extension & Community Development
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• v.15 no.2
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• pp.293-323
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• 2008

The purpose of this study is to suggest some policy recommendations on the development of agricultural research of public agricultural institution. Critics say public agricultural institution are not working fast enough. As for efficiency itself, it seems reasonable to conclude that privatization plan is the best plan. The change that is needed to improve the efficiency of public agricultural institution is not the point in question. I will concentrate on the extraordinary nature of agriculture. We must not forget the important of extraordinary nature of agriculture. What is important is to have a genuine debate on extraordinary nature of agriculture and agricultural research. My aim is to highlight some aspects of agricultural research of public institution. Most important thing is, agricultural research is a valuable resource for nation. As I mentioned before, the change that is needed to improve the efficiency of public agricultural institution is not the point in question But there is much room for consideration for proper method. Impatient privatization without serious consideration could have a negative impact on the agricultural research.

• Proceedings of the KIEE Conference
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• 2003.07e
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• pp.79-82
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• 2003

The switching-mode power converter has been widely used because of its features of high efficiency and small weight and size. In the switching-mode power converter, the output voltage is generally controlled by varying the duty ratio of main switch. When a converter operates in steady state, duty ratio of the converter is kept constant. So the power of switching noise is concentrated in specific frequencies. The more white noise is injected, the more conducted EMI is reduced. But output-voltage is not sufficiently regulated. This is the reason why carrier frequency selection topology is proposed. In the case of carrier frequency selection, output-voltage of steady state and transient state is fully regulated. Spectrum analysis is performed on the Phase current and the CM noise voltage. The former is measured with Current Probe and the latter is achieved with LISN, which are connected to the spectrum analyzer respectively.