• The Journal of Information Systems
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• v.19 no.4
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• pp.1-24
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• 2010

Over the past three decades, services have become the largest part of most industrialized nations' economies but it is the least-studied part of the economy. One approach is to develop a general theory of service with well-defined questions, tools, methods, and practical implications of society. The purpose of this study was to propose a service systems model to systematically approach a service research. For this purpose, we conducted literature review about business model and extant service systems researches. Based on a literature review, we propose a service systems model that comprises value proposition, participants, shared information/knowledge, organizational capability, value network, and technology. Implications for practice and recommendations for additional research were discussed.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06c
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• pp.336-340
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• 2007

We envisage that grid computing environments allow us to implement distributed data mining services, that is, those applications which analyze large sets of geographically distributed databases and information using the computational power and resources of a grid environment. This paper describes an experimental framework towards such a distributed data mining approach, including design considerations and a prototype implementation. Based on the "Knowledge Grid" architecture suggested by Cannataro et al., we identify four major components - user node, broker node, data node, and computation node - and define their individual roles. For implementing the prototype, we have investigated methods for utilizing distributed resources within a grid computing environment, e.g., communication and coordination among the various resources available.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.3
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• pp.345-364
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• 2008

Proportion and importance of knowledge & information provision through the web are increased continuously. Equivalent accessibility focused on universal service is highly demanded especially for public institutions, such as national libraries. In this study, web accessibility of sixteen national libraries were compared and analyzed by KADO-WAH, web accessibility tool. Characteristics of libraries were investigated and future directions were suggested based on the analysis and results.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.10a
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• pp.616-617
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• 2010

This paper presents a model of e-learning based on ubiquitous computing configuration. The proposed e-learning model as following. we propose the e-learning system's hardware and software configurations which are server and networking systems. Also, we construct the proposed e-learning systems's services. There are attendance and absence service, class management service, common knowledge service, score processing service, facilities management service, personal management service, personal authorization issue management service, campus guide service, lecture-hall management service. Also, we propose the laboratory equipment management service, experimental materials management service etc.

• International Journal of Human Ecology
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• v.13 no.1
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• pp.1-16
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• 2012

Information about the characteristics of street-living versus shelter-residing youth is vital for tailoring prevention and intervention efforts to the unique needs of runaway and homeless youth. The present study compared two samples of youth [street-living (n=73) versus shelter-residing (n=205)], between the ages of 14 to 17 years, on behavioral and emotional factors and service use. Based on the different characteristics of the two groups, the predictors explaining the living status of the runaways and homeless youth were explored. In general, street-living youth reported more severe substance use, depressive symptoms, and risky sexual behavior, but less lifetime service involvement compared to shelter-residing youth. The factors that predicted shelter-residing status were related to younger age, prior service care experience, more knowledge about HIV, and engaging in less delinquent and risky behavior. Given the little overlap among youth in service involvement and the greater severity faced by street-living youth, the conclusions highlight the need for increased funding and attention towards facilitating the ability of street-living youth to find and enter mental health and reintegration services.

• Journal of Korea Society of Digital Industry and Information Management
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• v.11 no.1
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• pp.183-196
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• 2015

With widespread use of smart phones, SNS has been growing rapidly. Companies are required to do its utilization and a preemptive response. However, taking advantage of SNS is still insignificant in the companies. Compared with traditional marketing, people still consider the SNS marketing unfamiliar. This study is aimed at widening the breadth of understanding of marketing activity using SNS and inquiring into its effective applications. In an effort to achieve this research objective, first, this study analyzed the aspect of real applications by reviewing diverse practical business cases. Second, this study provided the momentum of the understanding of SNS marketing-based knowledge. The effective method of producing consumer-intimate products and services lies in customers' participation in development and production. SNS marketing is the very communication and gives ear to a customer's voice. Earnest and creative SNS marketing will play a role as a stepping-stone for businesses to move much closer to a customer.

• Proceedings of the Korean Society for Quality Management Conference
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• 2009.10a
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• pp.95-101
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• 2009

This study address the variables affecting customer satisfaction and purchase intention of discount stores and outlets, based on service quality affecting on customer satisfaction and purchase intention, aiming to help provide a service quality affecting on customer's interest, satisfaction and revisit around discount stores and outlets. Today, consumer needs are diversified, continually changing and differentiated. Under the market conditions of unlimited competition to satisfy those needs, businesses focus on relationship-building with customers, as well as on quality of Services. The present age, an age of knowledge economy, with blessed three changes: 'information', 'globalization', and 'service enablement'. The most noteworthy fact is that along with the development of technology and increase of income, the phenomenon of soft and service enablement of economy giving a great deal of weight on service has been progressively spread throughout the whole process of development, sales, consumption, and employment geared with development of technology and gains in earnings.

• Journal of Internet Computing and Services
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• v.8 no.4
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• pp.71-79
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• 2007

The communicative behaviors in Wireless Sensor Networks(WSNs) can be characterized by two different types: routing and broadcasting. The broadcasting is used for effective route discoveries and packet delivery. However, broadcasting shorten the network lifetime due to the energy overconsumption by redundant transmissions. In this paper, we proposed a algorithm that remove redundant forward nodes based on Dominant Pruning method using 2-hop neighbors knowledge. Simulation results show that the proposed algorithm appears superior performance in respect of the number of forward nodes and the network lifetime.

• International Journal of Contents
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• v.5 no.3
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• pp.40-49
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• 2009

While numerous studies have suggested the significance of uncertainty during the process of information-seeking, less research has investigated user uncertainty in the actual search process using a real system. This study investigated user perceptions of uncertainty in the process of the selection of information retrieval system in the real information-seeking process. Considering the role of commercial Web search engines as supplementary tools for traditional bibliographic databases in academic research environments, this study analyzed the selection behavior of scholarly researchers, who use such search tools for their academic study. The researchers were limited to the discipline of science in order to understand user perceptions in this field. The findings revealed various dimensions, types, and incidents of uncertainty. Variations appeared in different incidents of uncertainty relating to the unique characteristics of the subjects' information-seeking context. The identification of three principal origins of uncertainty based on the different types of uncertainty generated implications to improve information systems and services.

• 한국IT서비스학회:학술대회논문집
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• 2008.11a
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• pp.23-25
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• 2008

지식정보사회로의 가속화는 국가의 새로운 역할을 요구하고 있다. 이 중 가장 중요한 것이 사회변화에 앞서가는 새로운 개념의 국가 사회간접자본의 확충이 될 것이다. 사회간 접자본(SOC)은 경제, 사회, 안보 등 국가의 모든 영역에 파급효과를 미치는 국민 경제의 기반을 제공함과 동시에 모든 국민 생활과 삶의 질 제고에 필요한 바탕을 제공하며 궁극적으로 국가경쟁력의 핵심역할을 한다. 하지만, 우리나라의 사회간접자본은 그동안의 지속적인 확충에도 불구하고 선진국에 비해 사회간접자본의 경쟁력이 취약한 것이 사실이다. 따라서 기존 사회간접자본와 우리나라의 첨단 디지털인프라(ICT)의 발전적 결합을 통해 사회간접자본을 지능화.첨단화하여 교통, 물류 등 사회 각 분야의 경쟁력을 높이는 한편, 다양한 부가가지 창출의 기회와 편익을 제공하는 방안을 제안하고자 한다.