• Journal of Korea Society of Digital Industry and Information Management
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• v.4 no.4
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• pp.21-29
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• 2008

The DC characteristics of GaAS Gunn diode are investigated as a preliminary study on the planar grade gap injector GaAs Gunn diode which is the transferred electron device with high output power and dc-rf conversion efficiency. The Gunn devices we fabricated were confirmed to have the DC characteristics of negative differential resistance(NDR). We discussed the nature of the NDR effect, including the electron intervalley transfer; the NDR effect was examined for six different cathode radii.

• Journal of Korea Society of Digital Industry and Information Management
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• v.13 no.1
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• pp.37-48
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• 2017

As the risk of technical leakage is increasing, technology protection support systems for small and medium-sized businesses have gained attention. This paper analyzed the perception gap of the user and policy-maker regarding technology protection support systems. First, to identify key elements of technology protection support systems and construct measurement factors, interviews with experts are conducted. Then, surveys are conducted to analyze the perception differences between the users and policy-makers. Factor analysis and ANOVA have been utilized to analyze survey results. The result shows that the perception gaps exist in the following areas: management system, cost reduction, copyright protection, customer satisfaction, leakage prevention, and awareness. To enhance the effectiveness of technology protection support systems, this paper suggests technology protection support systems should be customized in terms of the company's size and type of busines.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.2
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• pp.81-94
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• 2012

This paper suggests PARED algorithm, a modified RED algorithm, that actively reacts to dynamic changes in network to apply packet drop probability flexibly. The main idea of PARED algorithm is that it compares the target queue length to the average queue length which is the criterion of changes in packet drop probability and feeds the gap into packet drop probability. That is, when the difference between the average queue length and the target queue length is great, it reflects as much as the difference in packet drop probability, and reflects little when the difference is little. By doing so, packet drop probability could be actively controled and effectively dealt with in the network traffic situation. To evaluate the performance of the suggested algorithm, we conducted simulations by changing network traffic into a dynamic stat. At the experiments, the suggested algorithm was compared to the existing RED one and then to ARED one that provided the basic idea for this algorithm. The results proved that the suggested PARED algorithm is superior to the existing algorithms.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.23-34
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• 2019

The purpose of this study was to examine the relationship between the access level of digital information service and life satisfaction level of the middle and high-aged people and to analyze the Sequential Mediation Effects on online social engagement and online network activities. To this end, we analyzed the effects of multiple mediations on 1,491 seniors who responded to the 2018 digital information gap survey. The results of the study are as follows: First, this study confirmed that there is a statistically significant relationship between the access levels of digital information service and the life satisfaction. Second, the results showed that impact of digital information access level on life satisfaction among high-aged people was higher when they were engaged in both online social activities and online networking, rather than only involved in online social activities. Overall, this study comprehensively examined the relationship among the level of digital information access, life satisfaction, online social engagement, and online networking, which is meaningful in that it can be used as data for reconsideration of the digital information services and life satisfaction of the high-aged people.

• Journal of Information Technology Applications and Management
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• v.26 no.6
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• pp.65-78
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• 2019

This study describes the accounting approach of separating the value chain components that occur between the origin and destination of a country's total exports, and applied this analysis to the nation's information and communication industry. As a result of this study, the analysis results of ICT's global value chain for the United States and China, focusing on Korea, are as follows: First of all, the value added standard was relatively lower than the export amount standard for the information and communication industry. In particular, the gap was starkly visible in the information and communication manufacturing sector, where global vertical specialization was developed relatively. As a representative sector, the computer-related equipment sector exported to China became more specialized vertically than other information and communication industries. Next, the method of participating in vertical specialization of Korea's information and communication sector and its relative position in the global value chain came from domestic products (0.25/35.16) whose total exports, which were double calculated in the case of the U.S. market, returned home. On the other hand, about 32.68 percent returned to the Chinese market. Finally, in the global value chain level, the SW sector occupied a medium vertical culture location for the information and communication equipment sector and the information and communication service sector.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.475-485
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• 2020

The purpose of this study is to examine factors influencing the digital divide between the baby boomer and elderly generation. Under this relationship, we investigated the age, education, family type, income, using attitude, using motivation, using outcome, cognition of intelligence information society, anxiety of intelligence information society, life satisfaction, social support. Research data were Using the data of 2017 Digital Divide Survey conducted by the National Information Society Agency(NIA), The final sample were 2300 who fully responded. As a result of factor, age, education, using attitude, using object, cognition of intelligence information society, life satisfaction significantly effected directly in baby boomer. Also, family types, cognition of information intelligence society, life satisfaction in elderly. Based on the results of this study, the implications and future studies of the baby boomer and elderly are suggested.

• Journal of Information Technology Services
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• v.16 no.3
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• pp.47-65
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• 2017

The reference guide for the cost of establishing the digital documents has been used as a basis for establishing the budget for the construction of the knowledge information resource. However, due to the abolition of the nominal unit price notification in terms of IT projects, it is necessary to conduct research to convert the standard of the current labor force grade standard to the national incompetency standard (NCS). In this study, we investigate and revise the system and contents of the current knowledge information cost estimation model. In specific, i) we conducted gap analysis of cost estimation model and existing NCS model. As the contents conforming for the construction of the knowledge information resource were not adoptable, we define the description of the construction of the knowledge information resource and to identify the core elements of NCS prior to the improvement of the cost model. ⅱ) then we proposed improve the cost model considering integration with newly proposed NCS model for knowledge information construction job. In order to ensure the validity of the application of NCS development and cost estimation model, the experts reviewed relevant contents and made plans for improvement by using experts from supply and demand groups of various fields of national knowledge informatization projects.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.1-12
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• 2014

The 2020 Digital polarization in accordance with rapid information and communication technology (ICT) development arises as an important issue in the society of the time in S. Korea. And at that time of 2020 S. Korea society due to the multicultural families of nearly one million people are expected to start full-scale multicultural society. So this study has been developed ways to bridge the gap as the digital divide with a discussion of multicultural society policy relevant to advent of the era of the informatization. Also under changing environment of this new paradigm, this study proposed that the future strategic direction like expanded and enhanced information services relevant to multicultural families in S. Korea. So this study focused on the strategy consulting of multicultural society policy with e-Government of S. Korea by the application of 'scenario planning' as a foresight method. As a result, A desirable future vision of multicultural society policy with e-government in S. Korea is to build 'open platform' based on ICT-integrated data services.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.327-330
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• 2023

본 연구의 목적은 노인의 정보화기기 활용 능력이 사회자본 형성에 미치는 영향을 분석하고 이러한 관계에서 노인의 디지털기기 이용 효능감이 갖는 매개효과를 검증하는 데 있다. 이를 위해 2022년 실시한 디지털정보격차 실태조사 자료를 활용하여 SPSS 25.0 통계프로그램으로 개인의 인구사회학적특성, 정보화기기 중 PC, 모바일 기기 활용능력, 디지털기기 이용 효능감을 독립변수로 하고 노인의 사회자본을 종속변수로 하여 영향 관계를 분석하였다. 또한, 디지털기기 이용 효능감을 매개변수로 설정하여 노인의 정보화기기 활용 능력이 사회자본 형성에 미치는 영향에 매개효과가 있는지 검증하였다. 그 결과, 노인의 사회자본 형성에 미치는 영향 요인은 남성보다 여성의 사회자본 수준이 높았고, 나이가 많은 사람, 월평균 소득이 높은 사람, 다른 가족과 함께 거주하는 노인의 사회자본 수준이 높은 것으로 분석되었다. 독립변수인 PC활용능력은 통계적으로 유의미한 영향이 없었고, 모바일기기 활용 능력과 디지털기기 이용 효능감이 높을수록 사회자본이 증가하는 것으로 분석되었다. 이후 노인의 정보화기기 활용 능력이 사회자본에 미치는 영향을 디지털기기 이용 효능감이 매개하는지 분석하기 위해 Baron과 Kenny(1986)의 3단계 모형으로 분석한 결과, pc활용능력 → 디지털기기 이용 효능감 → 사회자본에 이르는 경로와 모바일기기 활용능력 → 디지털기기 이용 효능감 → 사회자본에 이르는 매개효과 경로는 통계적으로 유의미한 결과로 나타났다. 이러한 연구결과를 바탕으로 노인의 정보화기기의 접근성 향상을 위한 교육기관의 노력과 단순한 컨텐츠 위주의 교육에서 보다 실용적이고 즉시적인 교육 콘텐츠 전환 등 실천적 노력에 대해 제언하였다.

• Journal of Digital Convergence
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• v.8 no.3
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• pp.169-180
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• 2010

The current status of information management and information strategy of an enterprise may determine the future capability of the firm, thus the competitiveness in the market. Especially, in case of SME(small and medium enterprise), the level of information management and strategy gives the company readiness in the ever changing business environment. In this study, we investigate the information infrastructure of SMEs operating in Incheon Metropolitan areas whether they can meet the challenge in terms of network, software, IT education, IT finance, etc. We came up some suggestions which might be good alternatives and choices for IT decision makers in local and central government.