• 한국IT서비스학회지
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• 제11권3호
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• pp.269-285
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• 2012

The spontaneous interoperation is an important characteristic of ubiquitous applications and is closely related with mobility. The mobile components in ubiquitous environments are liable to appear in and disappear from one physical space to another. Because this characteristic certainly influences the structure and behavior of applications, they should adapt themselves to the changed environments by configuring their structure and behaviors. Consequently, developers are faced with the above challenging issue when they design and implement ubiquitous applications. The role concept is an efficient tool to model participant entities, their relationship, and collaboration, so role-based model are appropriate to describe a structure and behavior of software system. But, little attention has been given to reflect characteristics of ubiquitous applications. To tackle the problem, this study considers a ubiquitous application as a software organization which consists of software components and proposes an enhanced role-based application model for supporting spontaneous interoperation.

• 통상정보연구
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• 제5권1호
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• pp.21-38
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• 2003

21 century, Korea enterprise which run business in global market, has rapidly change. So, achievement of international competitive power is very important. IT(Information Telecommunication) Technology is play a leading role in this field. In fact, Korea enormous invest in informational technology field and hold the first place in informational quotient(information super-highway, server computer, mobile networking and firm's web site etc). But, materialization of information management effect consider how to cope with the situation. Korea SMEs(Small and Medium Enterprises) is fundamental in Korea economy. So Korea SMEs must active the international competitive power by information management and advance to a higher position. In conclusion, SMEs of information management is require that SMEs' CEO and CIO are must self-help to in this field. And governments improvement of connected with the related system in these field.

• International Journal of Quality Innovation
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• 제9권3호
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• pp.57-69
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• 2008

This paper posits that arm's length buyer-supplier relationship as the intermediate type between market exchange relations and strategic partnership might be advisable, and information technology may have a role as a mechanism actualizing the effects of such arm's length relationship by strategic supply-line diversification. Based on the theoretical analysis on interactive feedback relationships among IT level, buyer-supplier relationships, and supply chain structure, we suggest a set of advisable buyer-supplier relationship type for efficient supply chain management. Also, doing so would be helpful in suggesting a dynamic IT investment and adoption model appropriate for the establishment of productive buyer-supplier relationship, and further in providing theoretical foundations and practical guidelines on the role and function of B-to-B E-commerce for efficient SC integration.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2007년도 International Conference
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• pp.473-478
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• 2007

As customers' participation in B2C e-commerce increases, customers are getting more involved in the delivery of services, which may even go beyond the completion of service transactions. To examine such proactive extra-role online customer behavior, we delve into organizational citizenship behavior framework, which has been recently extended to examine customer citizenship behavior (CCB) in the service market area. Although CCB is vital for online retailing success, MIS and e-commerce research efforts have generally focused on the customer's customer coproduction that are customer in-role behaviors. Moreover, although the effect of information created by anonymous strangers on other customers increase, interpersonal trust research have focused on only the relationship between a seller and a customer. Therefore, this study attempts to answer two research questions: What are motivational factors that affect CCB? How differently do the two kinds of interpersonal trusts (trust in online retailer and trust in customers) influence customers?

• 한국정보보호학회:학술대회논문집
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• 한국정보보호학회 2001년도 종합학술발표회논문집
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• pp.396-400
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• 2001

본 논문은 현재 안전한 운영체제 개발에 사용되고 있는 강제 접근통제(MAC)와 역할행위 기반 접근통제(RBBAC)의 혼합 기법인 다중 등급 역할 행위 기반 접근통제 (ML/RBBAC)를 제안하고, 접근통제 모델을 기술한다. ML/RBBAC은 안전한 운영체제가 MAC과 RBBAC을 동시 지원하기 위한 최적의 방법이며, 기존 MAC의 단점인 지나치게 엄격한 정보흐름 통제 및 보안 관리 부담의 증대 문제를 해결한다.

• 한국IT서비스학회지
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• 제9권3호
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• pp.45-63
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• 2010

To examine the role IM plays, We focus on the factors that promote or hinder communication within a Korean organization when instant messenger is used. These factors were examined through two research questions. To understand these issues, a survey consisting of 33 categories was given to government and corporate office workers in Seoul, Korea. The survey results showed that Instant Messenger is recognized as a powerful communication tool in official organizations, but is only used effectively within groups or generations that do not follow the hierarchical relationships characterized by Confucian values. The results of this study fill a gap in our understanding of the important role of IM use in organizational effectiveness and may prove useful when developing tools and strategies to help promote communication within organizations using information technology media.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권6호
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• pp.1935-1952
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• 2022

Consumer innovativeness plays a vital role in explaining consumer dynamics, such as adoption, usage, and behavioral intention, in the new world of disruptive online media. This empirical study aimed to examine the importance of consumer innovativeness and digital literacy in the adoption and expansion of new technology-based media services, focusing on OTT services. Extending the theory of adoption of new technologies by innovators to new media environment centered on OTT services, it examines the influence of the four dimensions of motivated consumer innovativeness on OTT service usage. The Korea Media Panel Data of 2019, where overall ICT usage and media consumption of a broad panel of respondents was collected, was used for the analysis. From the data of 10,864 respondents, 4,031 (37.1%) were found to have experience in using OTT services. To clarify the mediating effect of digital literacy on the correlations between cognitive innovativeness of consumers and their use of OTT services, Process Macro Model 4 was used. The bootstrap method was applied to reveal that all four dimensions of consumer innovativeness have a significant indirect effect on new media usage through digital literacy, thus indicating how digital literacy plays an important role in the spread of new digital services in addition to consumer innovativeness. The findings are important in that they can help in the efforts to introduce new technologies to the public and educate them to improve their digital literacy so that they can enjoy the complete experience of using these new digital products.

• The Journal of Asian Finance, Economics and Business
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• 제7권8호
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• pp.445-450
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• 2020

This research investigates the role of entrepreneurial leadership in micro-enterprise development in the district of Majalengka in West Java, Indonesia. This study applied a qualitative content analysis method to understand the phenomenon of micro-enterprises comprehensively. The data of this research was collected using surveys, interviews, and a group discussion. The findings indicated that technological information adaptation plays a crucial role in the development of micro-enterprise development. Since the group of millennials dominated the leadership, it has provided more creativity by implementing technological information instead of the previous generation that faced difficulties in adopting the technology. This study noted that inadequate technology adaptation makes micro-business gradually lose customers, and the business was threatened to close. Meanwhile, the role of leadership drives the business development, sales have risen, the number of products has been increasingly diverse, and business capital and number of employees have grown. The establishment of an entrepreneur group could facilitate peer-to-peer contact, knowledge transfer, training, and intervention to enhance leadership and business development. This finding pointed out that the leadership will successfully influence business development when supported by several characteristics such as manage the business, capture opportunities, confidence, firmness, personal integrity, communication, and social and technical expertise.

• Journal of Information Technology Applications and Management
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• 제20권1호
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• pp.173-195
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• 2013

This study is to analyze the impact of the absorptive capacity and information technology (IT) on firms' innovation. The absorptive capacity is measured by R&D investment intensity, R&D manpower concentration, and the firm's size. We try to see the interaction effects between the absorptive capacity and IT usage on firms' innovation. We also look into the differences of the impacts between manufacturing industry and service industry as well as IT industry and service industry. We found that IT and R&D intensity have stronger interaction effect on innovation in manufacturing industry than in service industry, which shows that IT plays a more important role in the accumulation of knowledge in R&D activity in manufacturing industry. Contrarily, in service industry, IT and R&D manpower concentration has significant interaction effects on innovation. This means that the role of IT in service industry is sharing knowledge and experiences among employees in service industry. The interaction effect between firm's size and IT has positive impact on innovation in manufacturing industry, while it has negative impact on innovation in service industry. Finally, we found that the interaction effect is statistically significant in non-IT industry, while it is not statistically significant in IT industry.

• Asian Pacific Journal of Cancer Prevention
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• 제16권13호
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• pp.5273-5278
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• 2015

Background: Chronic myeloid leukemia (CML) is a stem cell disorder characterized by the fusion of two oncogenes namely BCR and ABL with their aberrant expression. Autophosphorylation of BCR-ABL oncogenes results in proliferation of CML. The study deals with estimation of rate constant involved in each step of the cellular autophosphorylation process, which are consequently playing important roles in the proliferation of cancerous cells. Materials and Methods: A mathematical model was proposed for autophosphorylation of BCR-ABL oncogenes utilizing ordinary differential equations to enumerate the rate of change of each responsible system component. The major difficulty to model this process is the lack of experimental data, which are needed to estimate unknown model parameters. Initial concentration data of each substrate and product for BCR-ABL systems were collected from the reported literature. All parameters were optimized through time interval simulation using the fminsearch algorithm. Results: The rate of change versus time was estimated to indicate the role of each state variable that are crucial for the systems. The time wise change in concentration of substrate shows the convergence of each parameter in autophosphorylation process. Conclusions: The role of each constituent parameter and their relative time dependent variations in autophosphorylation process could be inferred.