• Proceedings of the KIEE Conference
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• 2005.07a
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• pp.789-791
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• 2005

국내의 원격검침 데이터는 주로 전력요금 산출용도에 활용되고 있다. 하지만 국외 전력회사들은 미래 디지털 사회의 기반이 되는 신 전력시스템을 구현하는데 필요한 핵심기술 중의 하나로서 IT(Information Technology)기반 전력부가서비스 기술의 중요성에 대해 강조하고 있으며, 이를 위해 원격검침 데이터를 기반으로 하는 다양한 전력부가서비스를 개발하여 적용하고 있다. 따라서, 국내의 경우도 원격검침 데이터를 단순한 전력요금 산출용도가 아닌 전력소비자와의 관계에서 부가가치를 높일 수 있는 무한한 잠재력을 지닌 전략적인 자산으로 보고, 원격검침 데이터 가공 및 활용기술의 선진화를 통하여 전력회사와 전력소비자 모두에게 필요한 전력부가서비스의 적용이 필요하다. 본 논문에서는 국내외 전력부가서비스 시스템의 비교 분석을 통해 국내 전력산업 환경에 적합한 새로운 전력 부가서비스 적용방향을 제시하고, 이를 기초로 설계한 전력부가서비스의 일종인 전력 에너지 컨설팅 서비스 시스템에 대해 소개하고자 한다. 설계한 전력부가서비스 시스템의 적용시 전력소비자 측면에서는 요금절감 효과가 전력회사 측면에서는 부하 수요관리 및 투자비 절감 효과가 예상된다.

• Journal of Service Research and Studies
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• v.7 no.2
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• pp.1-16
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• 2017

The service that has been recognized as both a non-productive activity and auxiliary activity of manufacturing have become the driving force of the customers' demand with the 'service' itself. The service base is expanding and evolving rapidly. It is important to look at changes in service concepts to understand service systems. Because the service system itself has a cyclic nature based on the concept of service, it can help in the study and the "how" of service by looking at changing the system according to the evolution of the service concept. The ability to organize and utilize relationships is considered to be an important factor for managers in the service economy era. However, the attention of corporate is focused on their internal capabilities and they are familiar with external resources (knowledge and competence of customers). In this case study for each type of service, we analyzed the activities of interacting service providers-consumers in service relationship, and constructed a new service system model emphasizing intangible value and long-term outcome. This study is worth re-examining the role of customers in today's service economy era and actively utilizing a new service model for business performance.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.48 no.9
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• pp.17-26
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• 2011

Many types of services appear in a ubiquitous environment promulgated by the evolution of web service technology with the advances in wireless network technologies and mobile computing devices. These services differ according to their location environments, such as home, office, airport, and exhibition. It is required that a different set of services dynamically drops into the mobile user's device depending on their context and the distributed localized services are efficiently managed to seamlessly provide these localized services to the user. This paper proposes an Autonomic Service Composition System (ASCS) to provide useful services to the user with minimal or no effort for service selection. ASCS seamlessly installs the programs of localized services in the user's mobile device. It automatically provides localized services to users that are in the local service zone. Also ASCS can manage distributed localized services remotely and efficiently. ASCS is composed of a Remote Manager, Service Gateway, and Mobile Device. The prototype implementation uses 802.11b Wireless Network and Bundles using the OSGi Framework.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.542-545
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• 2000

최근 무선 통신 관련 서비스가 활발하게 이루어짐으로써 새로운 종류의 서비스들이 많이 등장하고 있다. 하지만 사업자 측에서 이러한 서비스를 제공하고 사용자로부터 요금을 받을 수 있는 과금 시스템이 아직까지는 미흡한 수준이다. 따라서 본 논문에서는 이러한 상거래 시장 변화에 맞추어 무선 인터넷에서 과금 시스템의 개념을 알아보고, 무선 인터넷 환경에서 안전하고 신뢰할 수 있는 과금 시스템을 제안한다.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1998.03a
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• pp.237-242
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• 1998

상거래의 본질은 어떠한 상품이나 서비스와 그에 상응하는 경제적 가치이 교환이라 볼 수 있다. 따라서 전자상거래의 경우에도 인터넷을 통한 고급서비스를 실현하기 위해서는 제공하는 서비스나 재화의 경제적 가치를 전자적으로 회수 할 수 있는 전자지불 시스템을 구축하는 것이 중요하다. 본 연구에서는 전자지불 시스템의 기술현황을 살펴본후, 전자지불 시스템의 개발방향과 성공적인 실현을 위한 선결과제를 제시한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.467-470
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• 2004

현재 대부분의 인터넷 쇼핑 시스템에서는 단순히 웹 애플리케이션 방식의 기능을 구현하고 있다. 본 논문에서는 웹 서비스에 기반한 인터넷 쇼핑 시스템 구축을 위하여 웹 서비스 기반의 인터넷 쇼핑 연계 시스템을 제안하고, 실제 인터넷 쇼핑 연계 방식에 적용하여 구현하였다.

• Journal of KIISE:Computer Systems and Theory
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• v.34 no.5_6
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• pp.214-227
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• 2007

A context-aware service in ubiquitous computing environments aims to supply services according to users' situation information that is dynamically occurring. The existing context-aware workflow systems, such as FollowMe and uFlow, provide context-aware services based on a workflow, which uses users' situation information as transition conditions of a service. But they can't apply users' new service demands, which may dynamically occur even when a workflow is on going, to a workflow scenario. In this paper we propose a context-aware workflow system, which can reapply users' new service demands into an initial workflow without interrupting or deleting the workflow. The proposed system can provide context-aware services without interrupting of service by recognizing exactly a place holder that has to be changed in a workflow scenario and by reconstructing only the changed parts through an incremental parsing method. Therefore, a user can immediately apply his new service demands to an on-going workflow scenario, and he can be guaranteed continuous executions of context-aware services according to a workflow scenario, which includes new service demands.

• Information Systems Review
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• v.9 no.2
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• pp.189-207
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• 2007

The importance of IT service management to improve the effectiveness and efficiency of IT outsourcing practices or performance has been emphasized in the fields. Accordingly, several methodologies of IT service management have been adopted in a fashion. This case based research tries to analyze the effects of ITIL-based IT service management practice in a company on IT outsourcing performance. The case analysis shows that ITIL-based service management influences systems quality, information quality, and service quality in direct manner. But it does not influence systems use and systems satisfaction in a meaningful way. This study would help IT service managers construct IT service environment which improves the performance of IT outsourcing service delivery and also researchers set up research proposition in a concise way in the future.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.11
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• pp.2005-2014
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• 2008

In this paper, it is presented to utilize UPnP as RFID service discovery and control mechanism for context-aware services. Using UPnP, it is possible to achieve easy deployment of context-aware services and to provide zero-configuration for RFID services. In addition, SQL based cleaning module which raises detection rates is developed since context-aware applications heavily rely on streams of data gathered from RFID tags. Using the cleaning technique, detection rates are improved from 60-80% to 98% or more In order to verify RFID context aware service based on the UPnP, sample context-aware scenario for physical distribution services is implemented on UPnP over RFID system. The impacts of UPnP messages (or service advertisements on network congestion and SQL cleaning module are experimented and analyzed, and the result show the good correctness and validity of the proposed system.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 1997.11a
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• pp.439-459
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• 1997

본 논문에서는 전자 문서 교환 시스템인 EDI에서의 정보보호 서비스를 제공하는 EDI 정보보호 시스템의 개발 기술에 대하여 언급한다. 이 시스템은 주로 ITU-TX.400 MHS 통신 프로토콜에 기반을 둔 X.435 EDI 정보보호 서비스를 제공함에 그 목적을 두고 있다. 본 논문에서는 정보보호 서비스 처리 시 발생하는 중복되는 작업을 최소화하고 사용 알고리즘을 언제든지 교체 또는 변경할 수 있는 시스템 구조와 기존 EDI시스템의 최소변경만으로 정보보호 시스템 구축이 가능토록 하는 이식성을 극대화하는 정보보호 시스템 모델과 관리 방안을 제시하였다.