• 한국컴퓨터정보학회논문지
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• 제21권4호
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• pp.31-38
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• 2016

The interface between servers and clients and system management in the cloud computing environment is different from the existing computing environment. The technology for information protection. Management and user authentication has become an important issue. For providing a more convenient service to users, SSO technology is applied to this cloud computing service. In the SSO service environment, system access using a single key facilitates access to several servers at the same time. This SSO authentication service technology is vulnerable to security of several systems, once the key is exposed. In this paper, we propose a technology to solve problems, which might be caused by single key authentication in SSO-based cloud computing access. This is a distributed agent authentication technology using a multiple SSO agent to reinforce user authentication using a single key in the SSO service environment. For user authentication reinforcement, phased access is applied and trackable log information is used when there is a security problem in system to provide a safe cloud computing service.

• Agribusiness and Information Management
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• 제11권2호
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• pp.16-24
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• 2019

BRIS has been established by the Ministry of Agriculture, Food and Rural Affairs since 2011 under Article 21 of the Act on the Preservation, Management and Utilization of Agricultural Life Resources. It is an information service that provides information related to agricultural life resources in connection with the Rural Development Administration, the Forest Service, and Korea Seed & Variety Service, Agricultural Resources and Agricultural and Livestock Quarantine Headquarters. The purpose of this study is to evaluate how the users assess the information system quality (information quality, system quality) for the current Bio Resource Information Service (BRIS). Ultimately, the structural equation modeling analyzes the causal relationship between each variable and how it responds to the user's continuous use intention. As a result, information quality among information system quality and information quality among system quality used as the main variables for the evaluation of BRIS were statistically positively influenced by users' perceived usefulness, while system quality It has been analyzed to have a positive effect on the sustained use intention. The user's continuous use intention is positively influenced by the information system quality and perceived usefulness at a statistically significant level. Especially, the perceived usefulness plays a role in mediating the user's continuous use intention.

• 정보관리연구
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• 제42권1호
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• pp.157-171
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• 2011

본 연구의 목적은 컨벤션 활동에 따른 모바일 지원서비스 영역과 세부 지원서비스를 개발하고 사용자 선호도를 분석하는 것이다. 질적인 연구방법을 사용하여 모바일 지원서비스 영역과 세부 지원서비스를 추출하였으며 전문가 서베이 방법을 통해 사용자 선호도를 분석하였다. 연구결과 20개의 지원서비스 영역과 43개의 세부지원서비스 항목들이 추출되었으며 컨벤션 참가자들을 위한 서비스 항목의 설계를 위한 사용자 선호도가 분석되었다.

• 대한임베디드공학회논문지
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• 제6권4호
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• pp.249-254
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• 2011

A user desktop service can be made available on internet or local area network with the help of virtualization and cloud technologies. The service is usually called a virtual desktop or a desktop cloud. However, a user interface is limited to I/O capabilities of a user's mobile terminal. In order to enhance a user interface on a remote virtual desktop, it is important to connect full-featured I/O devices which are founded locally. Our previous work called SoD (System-on- Demand) has proposed a technique to associate local full-featured I/O devices with a remote virtual desktop in Xen. On the technique, it is required to install a SoD client agent in a user's mobile terminal for connecting a remote virtual desktop. In this paper, we propose a new framework called Web-SoD that does not require any explicit installation to make SoD service available. The SoD client agent is provided by the web technology so that the agent can be installed transparently, and the platform independency is also achieved. Due to insufficient network socket performance of current web technologies, we extend Native Client (NaCl) proposed by Google to support a network functionality by modifying a NaCl library and a service runtime. With conducted experiment, we show that the network extension supports a full socket functionality over the compromised overhead on the web environment.

• ETRI Journal
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• 제29권3호
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• pp.311-321
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• 2007

In this paper, we propose a user-centric conflict management method for media services which exploits personal companions for the harmonious detection and resolution of service conflicts. To detect conflicts based on the varying characteristics of individual users, the proposed method exploits the unified context describing all users attempting to access media services. It recommends and mediates users' preferred media contents through a shared screen and personal companions to resolve the detected conflicts. During the recommendation, a list of preferred media contents is displayed on the shared screen, and a personally preferred content list is shown on the user's personal companion comprising the selection of media contents. Mediation assists the selection of a consensual service by gathering the users' selections and highlighting the common media contents. In experiments carried out in a ubiHome, we observed that recommendations and mediation are useful in harmoniously resolving conflicts by encouraging user participation in conflict situations.

• 디지털산업정보학회논문지
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• 제5권3호
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• pp.107-115
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• 2009

Traditionally, simulation method is used to test and evaluate the performance of communication protocol or functional elements for mobile communication service. In this paper, wireless network simulator is implemented using the C++ object-oriented programming language. This simulator can simulate wireless data services, like as ad-hoc networks, by considering the user's mobility. In this paper, the simulator includes network traffic model to reflect wireless data service and traffic source model to represent a user's mobility similar to real service environment and traffic characteristics can be reflected on the simulation, and also more accurate simulation results can be got through that. In addition, by using object-oriented techniques, new service feature or environment can be easily added or changed so that the developed mobile communication simulator can reflect the real service environment all the time. This simulator can be used in adjusting the characteristics of wireless data hosts following the mobility of the user, and also can be used in building new wireless ad-hoc network routing protocols.

• 한국기록관리학회지
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• 제12권2호
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• pp.163-179
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• 2012

본고는 1980년대와 90년대를 거쳐 미국과 캐나다에서 활발히 이루어졌던 기록정보 서비스에 대한 논쟁을 살펴보고, 이를 통해 기록정보 서비스의 본질과 의미를 고찰하고자 한다. 당시 학자들은 논쟁을 통해 기록관리가 기록 중심에서 이용자 중심으로 바뀌어야 하는가에 대해 다양한 의견을 피력했고, 기록관리의 의미와 원칙에 대해 재확인했다. 이러한 이용자 중심의 기록정보 서비스 논쟁을 바탕으로 본고의 후반부에서는 한국의 정보공개 청구 중심으로 이루어지는 기록정보 서비스를 살펴보고 문제를 제기하였다.

• Journal of information and communication convergence engineering
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• 제19권2호
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• pp.73-78
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• 2021

As interest in beauty has increased, various studies have been conducted, and related companies have considered the anthropometric data handled between humans and interfaces as an important factor. However, owing to the nature of 3D human body scanners used to extract anthropometric data, it is difficult to accurately analyze a user's body shape until a service is provided because the user only scans and extracts data. To solve this problem, the body shape of several users was analyzed, and the collected anthropometric data were obtained using a 3D human body scanner. After processing the extracted data and the anthropometric data, a custom deep learning model was designed, the designed model was learned, and the user's body shape information was predicted to provide a service suitable for the body shape. Through this approach, it is expected that the user's body shape information can be predicted using a 3D human body scanner, based upon which a beauty service can be provide.

• 한국전자거래학회지
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• 제21권4호
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• pp.95-117
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• 2016

최근 인구의 고령화 추세 및 웰빙에 대한 관심 증가는 헬스케어 서비스에 대한 수요의 증가로 이어지고 있다. 이러한 헬스케어 서비스는 지속적으로 사용자들이 해당 서비스를 이용하여 실제 건강을 증진시킬 수 있도록 돕는 것이 목적이다. 따라서 헬스케어 서비스의 효과성을 보다 증진시키기 위해서는 사용자가 헬스케어 서비스를 통해 추천되는 콘텐츠들에 대해 적극적으로 순응하고자 하는 의도를 가지고 행동을 취해야 한다. 하지만 기존의 헬스케어서비스에 관한 연구들은 순응의 서비스에 대한 지속사용의도에 대한 영향력을 살펴보는 연구들은 거의 없었다. 따라서 본 연구에서는 헬스케어 서비스의 지속적 사용의도에 사용자의 순응의도가 어떠한 영향을 미치지는 지를 기존의 의료정보학 및 정보시스템 분야의 이론을 기반으로 실증 검증하고자 한다. 이를 위해서 본 연구에서는 헬스케어 서비스에 대한 사용자의 순응의도(compliance intention)를 중심으로 지속사용의도에 영향을 미치는 요인을 검증하기 위한 모델을 제안하였고, 순응의도는 지속사용의도에 긍정적인 영향을 미치는 주요한 변수임을 확인하였다. 또한 순응의도를 높이는 변수들에 대해서도 검증하였다.

• 정보관리학회지
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• 제26권3호
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• pp.69-87
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• 2009

이 연구는 국내 전문도서관을 대상으로 서비스 품질 차원 변수들의 이용자 만족도에 대한 상관성, 상대적 영향력, 차별적 영향력을 분석하여 이용자 만족도의 결정요인을 찾아내고, 이를 근거로 전문도서관의 이용자 만족도를 증대시키기 위한 경영개선의 실질적 방안을 찾고자 하였다. 괴리이론을 이용한 설문조사 결과 전문도서관 이용자들의 도서관 서비스에 대한 인식은 최소치에도 미치지 못하는 것으로 나타났다. 이에 서비스 품질 차원의 변수들과 만족도 영역간의 영향력의 상관관계를 분석하여 그 결과를 근거로 이용자 만족도를 효율적으로 증대시키기 위한 경영개선의 우선순위를 제안하고자 하였다.