• 디지털융복합연구
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• 제7권4호
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• pp.43-56
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• 2009

The concept causing all the fuss is "the utility computing or the usage-based IT service", which now represents the future for IT asset in all aspects of the way they work in business, the commercial and public sector. The core of "utility computing or usage-based IT service" is changing the IT assert from "ownership" to "borrowing", which enables managers to get greater utilization of data-centre resources at lower operating costs. This trend is spreaded in public sector centering the Governmental Internet data Center of Korea(NCIA). So, it has need to make an usage-based IT service model that is suitable for public sector. In this paper, we propose the usage-based IT service model that is composed of IT service framework, service pricing model and IT service architecture.

• 한국컴퓨터정보학회논문지
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• 제14권3호
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• pp.237-248
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• 2009

1998년 Lau와 Murnighan의 faultline 이론이후 많은 연구가 진행되었으며 이는 기존의 인구통계학 연구가 밝혀낸 것 외에 많은 유용한 해석을 가능하게 하였다. 그러나 종전의 연구들은 직장환경이 미치는 영향에 대해 충분히 검토하지 못하였으며 IT기업에 있어 faultline의 영향은 탐구되지 못하였다. 본 논문에서는 이전의 faultline 이론을 바탕으로 IT-based faultlines을 제시하였고 그 영향력를 연구하였다. 본 연구는 IT-based faultlines은 task conflict와 process conflict에 부정적인 영향을 미치며, 이 두 종류의 Conflict는 IT-based faultlines의 영향을 그룹 퍼포먼스에 전달하는 것을 보여주었다. 또한 조절변수 commitment는 IT-based faultlines과 그룹 퍼포먼스사이에 조절작용이 없는 것으로 나타난 반면 open communication는 강력한 조절작용을 나타냈다. 이 연구의 결과는 faultline은 그룹워크에서 중요한 요소임을 나타냄과 동시에, conflict 및 그룹 퍼포먼스와도 필은 연관성이 있음을 보여주었다.

• 한국IT서비스학회지
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• 제16권3호
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• pp.1-15
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• 2017

This study is aimed to find out which factors among firm-specific resources, industry-based competition, and institutional conditions affect strategies for Korean IT manufacturing companies when they expand their business overseas, especially to Vietnam in this study. Also, it attempts to reveal which strategies among cost reduction, mass production, and localization affect performance of overseas expansion. Based on Strategy Tripod Theory as an integrating point-of-view embracing resource-based view, industry-based view, and institution-based view, research model was developed and tested through the survey of 83 Korean IT manufacturing companies expanded their business to Vietnam. Research findings show that (1) communication competency, industry competitiveness, industry attractiveness, and regulation of partner country affect cost reduction strategy. (2) International experience, communication competency, international orientation, and competitiveness is significantly associated with mass production strategy. (3) And international experience, communication competency, and industry competitiveness affect localization. (4) Ultimately, mass production strategy and localization strategy significantly increase performance of expansion to Vietnam. The theoretical contribution of this study is to adopt an integrative approach based on strategy tripod theory. As practical implications, it suggests factors and strategies that IT manufacturing companies interested in expansion to Vietnam should consider. In sum, we believe this study can contribute to Korean IT manufacturing industry by suggesting key success factors and appropriate strategies for overseas expansion.

• 한국IT서비스학회지
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• 제19권1호
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• pp.17-35
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• 2020

The Korea government has been pursuing various policies to find a new industrial growth engine based on ICT (Industry and Communication Technology). However, ICT industry recently faces a serious crisis due to a lack of fundamental competitiveness and capital and technological gap with other countries. Accordingly, it is necessary for ICT industry to recognize the rapidly changing competitive business environment and to establish appropriate value-based strategies. This paper analyses factors affecting value-based strategy in the Korean ICT industry using 10 years data set. The result shows that the value-based strategy in the Korean ICT companies has a significant influence on their financial performance. In addition, it is confirmed that the competition level in the industry has a significant moderating effect on this relationship. In addition, when the companies are categorized based on performance, it is confirmed that there is a significant difference in competition level and value-based strategy in each categories. The results of this paper are expected to suggest implications for the effective use of balanced value-based strategies in the ICT industry.

• Asia pacific journal of information systems
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• 제28권4호
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• pp.240-257
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• 2018

In today's turbulent business landscape, a firm's ability to explore new IT capabilities and exploit current ones is essential for enabling organizational agility and achieving high organizational performance. We propose IT exploration and exploitation as two critical organizational learning processes that are essential for gaining and sustaining competitive advantages. However, it remains unclear how the emerging cloud-based IT architecture affects an organization's ability to explore and exploit its IT capabilities. We conceptualize modularity and virtuality as two critical dimensions of emerging cloud-based IT architecture and investigate how they affect IT exploration and exploitation. We test our hypotheses using data obtained from our field survey of IT managers. We find that modularity is positively associated with both exploration and exploitation whereas virtuality is positively associated with exploration, but not with exploitation. We also find that the effect of modularity on exploitation is stronger than its effect on exploration.

• Journal of Information Processing Systems
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• 제15권1호
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• pp.127-136
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• 2019

User-based and item-based approaches have been developed as the solutions of the movie recommendation problem. However, the user-based approach is faced with the problem of sparsity, and the item-based approach is faced with the problem of not reflecting users' preferences. In order to solve these problems, there is a research on the combination of the two methods using the concept of similarity. In reality, it is not free from the problem of sparsity, since it has a lot of parameters to be calculated. In this study, we propose a combining method that simplifies the combination equation of prior study. This method is relatively free from the problem of sparsity, since it has less parameters to be calculated. Thus, it can get more accurate results by reflecting the users rating to calculate the parameters. It is very fast to predict new movie ratings as well. In experiments for the proposed method, the initial error is large, but the performance gets quickly stabilized after. In addition, it showed about 6% lower average error rate than the existing method using similarity.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 추계 학술논문 발표대회
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• pp.67-68
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• 2017

In the case of korea, it was enforced the performance based design in 2011 for fire safety to the construction that is hard to safety secure by code based design. However as a result of domestic performance design case analysis, as it conducts that the standard is insufficient, most of cases show that they use the method of adding facilities by strengthening legal standards. Therefore on this study, it conducts the analysis of Performance based design seminar data that it was done by SFPE and each countries Performance based design guidelines. Also based on this, it will use the basic data for developing the domestic performance based design guideline.

• 공학교육연구
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• 제24권2호
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• pp.12-19
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• 2021

Recently, the need of the future education in youth and univesity is rapidly increasing according to 4th industrial revolution. However, the maker and design education as a kind of youth and university future education has the following problems: it is implemented as an interesting convergence education including software education, it is managed by integrating youth and university competencies, it is composed in the form of blended class of consilient subject and nonsubject, it requires considering satisfaction in competency measurement and management, it is connected with entering school and getting job. To solve these problems, a case study on competency-based maker and design education using marine robot, which is based on the process-based learing method, integrated competency of youth and university, blended-type curriculum in terms of online and offline, is executed. To verify the competency-based maker and design education, the satisfaction survey in subject and nonsubject is performed. Study results show the example of the marine robot-based maker and design education and the need for additional study.

• 디지털융복합연구
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• 제10권5호
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• pp.199-206
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• 2012

뇌과학 기반 lT융합 산업은 뇌과학을 IT기술과 융합하여 국민의 건강을 획기적으로 개선시킬 것으로 기대되는 뇌과학 기반의 IT서비스를 발굴하고, 이러한 서비스를 토대로 새로운 시장을 형성할 산업으로서 우리나라의 신성장동력 산업으로 발전할 것이 기대되고 있다. 이에 본 연구는 이러한 뇌과학 기반의 IT융합 신산업 육성에 관한 정책을 탐색적으로 제안하는 것을 목적으로 한다. 이를 위해 본 연구는 첫째, 뇌과학 기반 IT융합산업 생태계를 정의하고, 둘째, 뇌과학 기반 IT융합산업의 서비스 유형을 구분하며, 셋째, 본 산업의 활성화를 위한 정책 방향 및 추진 전략을 제안한다.

• 한국IT서비스학회지
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• 제20권5호
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• pp.189-207
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• 2021

Voice interaction combined with artificial intelligence is poised to revolutionize human-computer interactions with the advent of virtual assistants. This paper is analyzing interactive elements of AI-based voice recognition services such as sympathy, assurance, intimacy, and trust on intention to use. The questionnaire was carried out for 284 smartphone/smart TV users in Korea. The collected data was analyzed by structural equation model analysis and bootstrapping. The key results are as follows. First, AI-based voice recognition service characteristics such as sympathy, assurance, intimacy, and trust have positive effects on interactivity with the AI-based voice recognition service. Second, the interactivity with the AI-based voice recognition service has positive effects on intention to use. Third, AI-based voice recognition service characteristics such as interactional enjoyment and intimacy have directly positive effects on intention to use. Fourth, AI-based voice recognition service characteristics such as sympathy, assurance, intimacy and trust have indirectly positive effects on intention to use the AI-based voice recognition service by mediating the effect of the interactivity with the AI-based voice recognition service. It is meaningful to investigate factors affecting the interactivity and intention to use voice recognition assistants. It has practical and academic implications.