• 한국산업정보학회논문지
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• 제11권5호
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• pp.207-215
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• 2006

본 논문은 유비쿼터스 정보기술을 활용한 서비스가 u-Campus 의 도입과 정착에 미치는 영향 요인을 기술수용모형(TAM) 을 이용하여 도출하는데 목적이 있다. 이를 위하여 u-서비스의 특성요인으로 실시간서비스, 정보보안성, 맞춤서비스 등의 요인들을 추출하여 이들 요인들이 u-서비스에 대한 인지된 유용성과 인지된 편리성에 어떠한 영향을 미치는지를 살펴보았으며 인지된 유용성과 인지된 편리성이 u-서비스 이용 의도에 미치는 영향에 대하여 연구하였다. 162명의 응답자를 대상으로 실증분석을 실시한 결과 맞춤서비스가 인지된 유용성과 인지된 편리성에 가장 유의한 요인임을 알 수 있었다.

• 한국산업정보학회논문지
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• 제13권5호
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• pp.158-167
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• 2008

최근 정보기술의 발달로 유비쿼터스 컴퓨팅과 이를 이용한 유비쿼터스 서비스가 개발 중이거나 서비스 중이다. 향후 많은 산업에서 유비쿼터스 서비스 활용이 증가할수록 서비스에 대한 평가가 필수적이라 하겠다. 본 연구에서는 유비쿼터스 서비스의 평가를 위한 구체적인 평가항목을 도출하고 이들 간의 중요도를 산출하는 프레임워크를 제시하고자 한다. 이를 위하여 유비쿼터스 서비스의 평가와 관련된 문헌을 고찰하고 전문가의 의견을 수합하여 주요 평가항목의 결정과 계층적 분석과정 기법을 이용하여 항목간의 중요도를 산출하고자 하였다. 평가자 평가결과의 정확성을 보정하기 위해 퍼지(fuzzy) 개념을 활용하여 중요도를 계산하였으며 설문을 통하여 실제 특정 분야에서 유비쿼터스 서비스를 평가하기 위한 항목의 중요도를 도출하였다.

• 한국산업정보학회논문지
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• 제19권3호
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• pp.9-15
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• 2014

In the ubiquitous computing environment, a ubiquitous vehicle will be a communication node in the vehicular network as well as the means of ground transportation. It will make humans and vehicles seamlessly and remotely connected. Especially, one of the prominent services in the ubiquitous vehicle is the vehicle remote operation. However, mutual-collaboration with the in-vehicle communication network, the vehicle-to-vehicle communication network and the vehicle-to-roadside communication network is required to provide vehicle remote operation services. In this paper, an Internet-based human-vehicle interfaces and a network architecture is presented to provide remote vehicle control and diagnosis services. The performance of the proposed system is evaluated through a design and implementation in terms of the round trip time taken to get a vehicle remote operation service.

• 한국산업정보학회논문지
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• 제16권2호
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• pp.39-47
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• 2011

Adapting content services to the needs of the users requires content adaptation for context and sensibility. Adapting to context may necessitate distinguishing between video delivery to a PC versus a smart phone, while adapting to sensibility may necessitate between video delivery outside, in a quiet environment, or at home, or offering different movie choices on a sunny summer day, a cold winter day or a holiday season. One key area to address in providing adaptive content services is the design of the delivery system architecture of the adaptive content server. This paper describes several alternatives for this architecture, and outlines some additional concerns that must be considered when the chosen architecture is implemented.

• 한국산업정보학회논문지
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• 제10권1호
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• pp.9-15
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• 2005

관련 기업 및 ISP 업체에게는 투자의 매력을 부여하며 인터넷의 사용시간대 및 사용량에 따라 빈약한 사용자, 건강한 사용자, 과다한 사용자 등으로 구분하여 차등요금을 부여하는 합리적인 전략이 필요하다. 이 논문에서 차등요금부과의 타당성을 검토한다. 그리고 로지스틱 회귀모형을 이용하여 혼잡에 따른 차등요금, 지연시간, 접속만족도 등에 따라 실제적으로 인터넷 사용자들이 인터넷 접속을 얼마나 유지하는 지를 측정할 수 있는 관련 예측모델을 제시한다. 이러한 예측모델을 이용하여 인터넷 접속 또는 비접속 확률을 예측하는 분석률은 $69.5\%$이었음을 확인하였다.

• Journal of information and communication convergence engineering
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• 제4권1호
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• pp.1-4
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• 2006

Recently Web Services choreography working group of W3C has published the working draft on WSCDL (Web Services Choreography Description Language) version 1.0 which defines reusable common rules to govern the ordering of exchanged messages between Web Services participants. This paper considers a computing environment where mobile clients are interacting with Web Services providers based on a WSCDL specification. In order to effectively cope with the user and device mobility of such an environment, in this paper we present an ongoing work to develop a framework through which a mobile client can specify its preference on how conversation should take place. The proposed framework provides a flexible means for mobile clients to minimize the number of message exchanges while allowing them to adhere to the required choreography.

• 산업공학
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• 제25권3호
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• pp.327-337
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• 2012

The development of information and communication technology affects people's life in social, cultural, and economic aspects. When this happens in public sector, it gives way more benefits than in private sector because of its high accessibility by public. Among the technological public services in Korea, call center service which provides administrative services by telephone and internet had been spotlighted as a new type of communication between people in demand and public service provider. Public call center service is expected to be continuously diffused in years due to its accessibility and convenience for public users. This study analyzes diffusion pattern of public call center service in Korea using Bass model and tries to suggest appropriate diffusion strategies. For practical cases, three most popular public call centers in Korea are analyzed in light of diffusion pattern and operating strategies. Our analyses identify that public call centers in Korea are facing continuous diffusion in two years and there exist certain strategies to efficiently expedite the diffusion.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권3호
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• pp.1184-1198
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• 2019

This study aims to use ISM to identify the enablers affecting the acceptance of IoT services. For this purpose, this study conducted an ISM analysis and a MICMAC analysis, extracted the enablers from Internet of Things - An Action Plan for Europe published by the EU for the research, and conducted interviews and surveys. The study found that it would be preferentially necessary to prepare the base for successful IoT services through international cooperation and the security of objective data. In addition, it turned out that it would be necessary to make efforts to spread and develop IoT services by conducting R&D and implementing projects through public-private partnerships and the organization of a consultative group. Lastly, since information security and standardization are the desired objects of the IoT industry, it was found that both the government and the industrial world should focus on them. This study has significance in that it can provide practical implications for the effective acceptance of IoT services.

• 산업공학
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• 제21권1호
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• pp.65-74
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• 2008

In the future, the ubiquitous computing environment will provide users with context-aware services, intelligently interacting with omnipresent resources and surrounding environments at any location and time. Therefore, the ubiquitous computing environment requires context-aware applications in order to gather and analyze context information in various situations. However, existing context-aware applications have mainly focused on providing services and adapting themselves to users based on user related contexts. But this environment requires not only user related contexts but also Quality-of-Service (QoS) related contexts. In this paper we propose a frame-work for supporting user-oriented QoS in ubiquitous environments. The proposed approach adopts a semantic ontology and a neural network algorithm in order to reason about explicit and uncertain contexts. We also show the possibility of applying the framework to real environments such as collaborative engineering service, automobile maintenance service and ubiquitous home service.

• 한국도서관정보학회지
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• 제31권4호
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• pp.1-19
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• 2000

이 연구는 디지털 정보환경에서의 기업체 정보서비스 방법을 모색하는 것이다. 기업체 정보서비스의 이론과 실제를 알아보기 위하여 최근 국내에서 수행된 기업체 정보서비스에 관한 문헌을 조사 분석하고, 기업체에서 채택하고 있는 지식관리시스템을 고찰한다. 인터넷을 비롯한 정보테크놀러지의 이용이 많아지고 있는 정보환경에서 산업기술정보원, 산업지원기관들의 기업체에 대한 정보서비스 방식이 어떻게 변하고 있는지를 알아본다. 메일링리스트에 올라온 개별 기업체의 정보요구를 조사하고 기업체를 위한 정보서비스 방향을 제시한다.