• 한국정보통신학회논문지
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• 제12권11호
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• pp.2097-2104
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• 2008

오늘날 가정은 더 이상 의식주를 해결하는 곳이 아니다. 이제 홈 네트워크는 예전 말이 되었고 가정 내 디지털 가전기기들은 OSGi나 UPnP 등이 확장되어 언제 어디서나 인터넷을 통해 자동 제어되고 있다. 본 연구는 OSGi나 UPnP 확장을 통해 디지털 홈 네트워크 미들웨어를 기본 제공하고 JESS 추론 엔진을 통해 스마트 홈 네트워크를 구성한다. 그리고 휴대용 심전도, 혈압, 맥박, 체온 등의 생체 신호 측정 센서를 통하여 생체 인식 기반스마트 홈 미들웨어를 제공하여, 사용자가 집에서 머무르는 동안 사용자와 근접하여 사용자가 요구하는 홈서비스를 예측하여 자동으로 제공해 주며, 제공된 홈서비스가 사용자에게 미치는 스트레스를 분석하여 사용자가 가장 편안하게 느끼는 홈서비스를 추천하고 사용자의 건강 상태를 실시간으로 모니터링 하여 사용자의 건강 상태가 나빠지면 자동으로 사용자, 가족 그리 고 의사에게 자동으로 알려 주는 시스템을 구축한다.

• 정보학연구
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• 제2권2호
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• pp.69-88
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• 1999

고도의 경쟁환경속에서 고객의 기대에 맞춰 혹은 그 이상으로 서비스를 전달할 수 있는 능력이 있는 서비스조직만이 생존 및 성장할 수 있다. 유형의 재화와 달리 서비스 재화는 무형성, 생산과 소비의 비분리성, 서비스품질의 이질성, 그리고 소멸성이라는 독특한 특징을 가지고 있으며, 서비스요원에 대한 상대적 의존도가 높다. 하지만 이러한 측면을 반영하여 서비스조직의 효율적인 관리에 관한 연구는 미흡한 실정이다. 따라서 본 연구는 서비스특성에 따라 서비스조직의 통제시스템이 어떻게 결정되며, 각 통제유형에 따라 서비스요원의 반응(역할스트레스)과 성과(서비스품질)가 결정되는 베커니즘을 통합적 개념틀을 통하여 제안하는 것을 목적으로 한다. 구체적으로 살펴보면, 먼저 서비스 및 서비스품질의 개념 및 중요성을 기술하고, 다음으로 서비스조직의 통제시스템에 대한 통합적 개념틀을 중심으로 (1)서비스 특성에 따른 통제시스템, (2)통제유형에 따른 서비스요원의 반응, (3)통제유형과 고객에 의하여 지각된 서비스품질과의 관계, 그리고 (4)서비스요원의 반응과 서비스품질의 관계의 네 가지 측면에 대하여 각각의 제안가설들을 제시한다. 본 연구의 마지막에는 전반적 논의와 미래를 위한 연구 방향들을 제시하고 있다.

• 정보처리학회논문지C
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• 제17C권2호
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• pp.135-144
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• 2010

u-City에서는 도시 곳곳의 센서를 통해 상황정보를 수집하고, 사용자의 요청에 의해서가 아닌 그 상황에 필요한 서비스를 자동적으로 제공하게 되는 서비스 개인화를 추구한다. 그러나 맞춤형 서비스를 제공하기 위해서는 다양한 센서를 통해 수집되는 상황정보를 필요로 하게 되는데, 이와 같은 상황정보에는 개인의 프라이버시 정보를 포함한다. 따라서 서비스 제공으로 인한 편리성과 정보보호라는 측면 사이에서 적절한 조율 내지는 관리가 필요하다. 본 논문에서는 맞춤형 서비스 환경에서 요구되는 다양한 개인의 상황정보를 분류하여 등급화 하였고, 이를 기반으로 사용자 프로파일(User Profile)과 서비스 프로파일(Service Profile)간의 프로파일 매칭(Profile Matching)을 통해 서비스 제공여부를 결정하고, 전달되는 개인정보의 암호화, 이를 위한 키 분배를 관리하는 정보보호 관리를 제안한다.

• Journal of Information Technology Applications and Management
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• 제24권2호
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• pp.55-70
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• 2017

A key factor of competitiveness of a firm is technology innovation including product and process innovation. This paper explores the importance and performance of innovation in IT industry across manufacturing and service business. Using importance-performance analysis based on a survey of Korean manufacturing and service firms, we find the characteristics of innovation in IT under the context of industry difference. Out study indicate that Korean IT firms need to recognize the importance of technology innovation and enhance the performance in some areas. In future research, we will expand the boundary of innovation into non-technology innovation as well as service-specific innovation.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2007년도 추계종합학술대회
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• pp.453-456
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• 2007

본 논문은 USN(Ubiquitous Sensor Networks) 구축에 활용될 WMN(Wireless Mesh Networks) 기반의 미들웨어 설계에 대해 기술한다. WMN 기반의 미들웨어는 넓은 범위에 걸쳐서 분산되어 있는 센서 디바이스들로부터 상황인지에 필요한 데이터들을 WMN을 통해 미들웨어와 연동하는 기술이다. 본 논문에서 제안하는 WMN기반의 미들웨어는 WMN을 활용하여 인프라 구축이 미흡한 곳에서 정보 교환을 가능하게 하고, 특정 센서로부터 발생된 이벤트를 Context-awareness를 통해 종합적으로 분석한 결과를 바탕으로 사전에 사용자에 의해 설정된 제어값을 참조하여 주변장치를 실행한다. 미들웨어는 센서 네트워크 관리와 응용서비스를 상호 분리하여 각각의 기능을 수행한다.

• Asia pacific journal of information systems
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• 제23권2호
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• pp.21-39
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• 2013

As the utilization of information technology and the turbulence of technological change increase in organizations, the adoption of IT outsourcing also grows to manage IT resource more effectively and efficiently. In this new way of IT management technique, service level management(SLM) process becomes critical to derive success from the outsourcing in the view of end users in organization. Even though much of the research on service level management or agreement have been done during last decades, the performance of the service level management process have not been evaluated in terms of final objectives of the management efforts or success from the view of end-users. This study explores the relationship between SLM maturity and IT outsourcing success from the users' point of view by a analytical case study in four client organizations under an IT outsourcing vendor, which is a member company of a major Korean conglomerate. For setting up a model for the analysis, previous researches on service level management process maturity and information systems success are reviewed. In particular, information systems success from users' point of view are reviewed based the DeLone and McLean's study, which is argued and accepted as a comprehensively tested model of information systems success currently. The model proposed in this study argues that SLM process maturity influences information systems success, which is evaluated in terms of information quality, systems quality, service quality, and net effect proposed by DeLone and McLean. SLM process maturity can be measured in planning process, implementation process and operation and evaluation process. Instruments for measuring the factors in the proposed constructs of information systems success and SL management process maturity were collected from previous researches and evaluated for securing reliability and validity, utilizing appropriate statistical methods and pilot tests before exploring the case study. Four cases from four different companies under one vendor company were utilized for the analysis. All of the cases had been contracted in SLA(Service Level Agreement) and had implemented ITIL(IT Infrastructure Library), Six Sigma and BSC(Balanced Scored Card) methods since last several years, which means that all the client organizations pursued concerted efforts to acquire quality services from IT outsourcing from the organization and users' point of view. For comparing the differences among the four organizations in IT out-sourcing sucess, T-test and non-parametric analysis have been applied on the data set collected from the organization using survey instruments. The process maturities of planning and implementation phases of SLM are found not to influence on any dimensions of information systems success from users' point of view. It was found that the SLM maturity in the phase of operations and evaluation could influence systems quality only from users' view. This result seems to be quite against the arguments in IT outsourcing practices in the fields, which emphasize usually the importance of planning and implementation processes upfront in IT outsourcing projects. According to after-the-fact observation by an expert in an organization participating in the study, their needs and motivations for outsourcing contracts had been quite familiar already to the vendors as long-term partners under a same conglomerate, so that the maturity in the phases of planning and implementation seems not to be differentiating factors for the success of IT outsourcing. This study will be the foundation for the future research in the area of IT outsourcing management and success, in particular in the service level management. And also, it could guide managers in practice in IT outsourcing management to focus on service level management process in operation and evaluation stage especially for long-term outsourcing contracts under very unique context like Korean IT outsourcing projects. This study has some limitations in generalization because the sample size is small and the context itself is confined in an unique environment. For future exploration, survey based research could be designed and implemented.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제14권3호
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• pp.306-310
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• 2008

정보추천 서비스를 위한 선호도는 상황에 따라 달라질 수 있으므로, 정보추천 서비스를 제공하기 위해서는 먼저 사용자의 컨덱스트 정보를 알아야 한다. 본 논문은 모바일 환경에서 다수 사용자의 선호도를 고려한 추천 시스템을 제안하며, 음식점 추천에 이를 적용하고자 한다. 모바일 환경에서 개별 사용자의 선호도를 모델링하기 위해 베이지안 네트워크를 사용하였으며, 음식점 추천은 많은 경우 개별 사용자가 아닌 다수 사용자의 선호도를 고려해야 하므로, 본 논문에서는 개별 사용자의 선호도를 바탕으로 다수의 선호도를 획득하기 위해 다기준 의사결정방법인 AHP를 이용하였다. 실험을 위해서 10가지 서로 다른 상황에서 추천을 수행하였으며, 마지막으로 SUS 사용성 평가를 통해 제안하는 시스템의 사용성이 높게 평가되었음을 확인하였다.

• 한국컴퓨터정보학회논문지
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• 제22권10호
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• pp.109-119
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• 2017

In recent through development of IOT owing to that mass stream data is being generated in variety of application complex event processing technology is being watched with keen interest as a technology to analyze this kind of real-time continuous data. However, the existing study related with complex event processing only comes to an end at simple event processing based on low-level event or comes to an end at service defect discovery with providing limited operator and so on. Accordingly, there would be limitation to provide useful analysis information. In this paper in consideration of complex event along with aspect-oriented programming an extended complex event model is provided, which is possible to provide more valuable and useful information. Specifically, we extend the model to support hierarchical event structures and let the model recognize point-cuts of aspect-oriented programming as events. We provide the event operators designed to specify the events on instances and handle temporal relations of the instances. It is presented that syntax and semantics of constructs in our event processing language including various and progressive event operators, complex event pattern, etc. In addition, an event context mechanism is proposed to analyze more delicate events. Finally, through application studies application possibility of this study would be shown and merits of this event model would be present through comparison with other event model.

• 한국IT서비스학회지
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• 제12권2호
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• pp.387-410
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• 2013

Due to the development of information technology, Convergence and Creative Economy became hot issues. For example, products become more intelligent and services are likely to be connected and integrated around core services or provided as bundle solution. Meanwhile products and services are integrated in the context of mutual supplementation, which leads to Servitization of Products and Productization of Services in many industries. Previous studies have addressed Convergence with different terms and definitions such as Convergent, Multicategory Multifunctional Product, Clouding Service, Bundle and so on from one perspective such as consumers, suppliers or technology according to a wide range of academic approaches. Thus, this study attempted to suggest the most typical convergence products released in the convergence environment and categorize those products. Furthermore, this study has pointed out the problems in the New Product Development Framework discussed in the studies on marketing by taking the situation of the public sector into account and then suggested "New Service Development Framework in the Public Sector" that are different from traditional e-Gov. approach basically and will enable the government to create public information service and provide them to enterprises or citizens. It also emphasized the importance of Business Conceptualization Stage in the framework; argued that there is a necessity of an integrative study from the perspective of technology on the basis of the approach from the perspective of marketing and Policy such as a study of consumer behaviors, design and marketing channel and Policy Integration for the development and dissipation; and furthermore suggested the cases-the development/Diffusion of Transportation Card Service in Seoul and CFC (Call for Collaboration) in Singapore-in order to verify the framework. There is a need to supplement New Service Development Framework so it is able to reflect the distinct characteristics of the public sector from the academic perspective and be used as practical guidelines for SI (System Integration) business to shift into IT Service business. Last but not the least, this study has suggested the limitations and the directions for the future studies.

• 한국IT서비스학회지
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• 제15권1호
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• pp.113-129
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• 2016

Recently, as Information System projects tend to be more complex, the importance of Information System Audit increases. In the same context, the need for the resident IS Audit also increases, which is supposed to deal with the possible risks and urgent issues by providing the appropriate support and timely coordination during IS project. Basically, for the effective IS Audit, the IS audit team members should be able to understand such a business context as work characteristics, business knowledge, goals, and culture of the organization. The audit team members should also be able to share the various knowledge of Information Technology and audit procedure with the owner of the project. Especially, for the resident audit, it is more important to fill the gaps in expertise between project owner and audit team. However, any studies on the need of common knowledge base (knowledge complementarities) in the IS audit have not been done so far. The purpose of this study is to analyze whether the knowledge complementarity based on inter-organizational communication between the project owner and audit team members makes an effect on the fidelity and performance of IS audit. In order to do this, the relationship among inter-organizational communication and knowledge complementarity, the fidelity of IS audit service, and performance of IS audit has been analyzed, using Structural Equation Model. The result shows that all the relationship is significant, which means that knowledge complementarity between the two different interest groups should be an effective factor on the fidelity and performance of IS audit. This result implies that, for better quality of IS Audit service, how to acquire the knowledge complementarity between the project owner and Audit team should be considered seriously as well as systematically in the process of IS Audit.