• TTA Journal
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• s.99
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• pp.70-75
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• 2005

지금까지의 홈네트워크 서비스는 주로 홈 오토메이션 기반의 서비스나 간단한 데이터통신 기반의 원격검침 및 보안서비스 등이 주류를 이루어 왔으나 FTTH 기술이 본격 개발되면서 홈네트워크 서비스는 기존의 서비스 이외에 통방융합 기반의 광대역 서비스로 그 영역을 확장하게 되었다. 본 고에서는 FTTH 및 홈네트워크의 주요기술을 열거하고 통방융합 기반의 광대역 홈네트워크 서비스의 종류와 KT가 제공하고 있는 광주광역시 FTTH 시험서비스의 내용에 관해 기술하였다.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10a
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• pp.169-171
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• 1998

본 논문에서는 성능이 서로 다른 워크스테이션들을 효과적으로 사용하기 위한 동적인 Load Balancing 방식을 제안한다. 각 워크스테이션의 수행시간에 따라서 load 의양이 결정되며 각 워크스테이션의 성능을 사전에 알아야 할 필요가 없는 방식이다. 이를 Ethernet으로 연결된 두 개의 워크스테이션에서 실험하여 그 성능을 비교 평가한다.

• TTA Journal
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• s.109
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• pp.82-93
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• 2007

홈네트워크 보안 기술은 디지털 생활의 질을 향상하고 신뢰성있고 상호연동이 가능한 홈네트워크 디바이스 및 서비스의 구현을 위해 요구되는 핵심 기술이다. 홈네트워크 보안과 연관된 국제표준화 기구 또는 사실표준화 단체는 ITU-T, UPnP, DSL 포럼 등을 들 수 있다. 본 고에서는 홈네트워크 보안 표준과 연관되는 이들 국제 표준화 기구와 사실 표준화 단체의 동향을 살펴본다.

• Journal of Internet Computing and Services
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• v.17 no.1
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• pp.65-71
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• 2016

In this paper, we propose a novel analysis method and its algorithms to perform the betweenness centrality measurements on a valued and directed workflow-supported social network. The conventional workflow-supported social network model is to represent the existences of task transferring relationships among their performers by using a binary social network. However, it is necessary to consider not only the existences of task transferring relationships but also their quantities and directions in order to obtain much more effective and sophisticated analysis results. In conclusion, this paper newly defines a concept of valued and directed workflow-supported social network, and its betweenness centrality analysis method and algorithms. Especially, to verify the proposed method and algorithms, we try to apply the conventional method and the proposed method to an example workflow model respectively, and compare their betweenness centrality analysis results.

• Journal of KIISE:Software and Applications
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• v.29 no.10
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• pp.703-725
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• 2002

It is well recognized that component-based development (CBD) is an effective approach to manage the complexity of modem software development. To achieve the benefits of low-cost development and higher productivity, effective techniques to maximize component reusability should be developed. Component is a set of related concepts and objects, and provides a particular coarse-grained business service. Often, these components include various message flows among the objects in the component, called 'business workflow`. Blackbox components that include but hide business workflow provide higher reusability and productivity. A key difficulty of using blackbox components with business workflow is to let the workflow be customized by each enterprise. In this paper, we provide techniques to model the variability of family members and to customize the business workflow of components. Our approach is to provide formal specification on the component variability, and to define techniques to customize them by means of the formalism.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.786-789
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• 2015

Recent concept of smart wort which is advanced from that of existing smart work means the task performance method in which we can provide the highest value to our customers by accomplishing the customer-oriented business creatively, innovatively and quickly. New concept of smart work can come through adding multiple intelligence theory and open innovation to social media technologies which have the characteristics of high connectivity, collective intelligence, rapid feedback. In accordance with the evolution of smart work concept, it is necessary to make the plan and strategy on R&D and standardization through the analysis of key technologies in order to realize the advanced smart work and secure a leading position in smart work market. Accordingly, In this paper, we propose standardization tasks and technologies which our country can lead and present a long-term driving directions by analyzing the conceptual change of smart work, technology trends and standardization trends.

• The KIPS Transactions:PartD
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• v.13D no.2 s.105
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• pp.191-198
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• 2006

Many enterprises have introduced workflow to enhance work efficiency and support effective work processes in their various work environments. Recently, Business Process Management(BPM), an extension of workflow, is spotlighted in enterprise software markets Although woklflow plays an important role in Business Process Managements, researches in workflow are mostly concentrated on temporal constraints which finds exact execution sequences for complicated jobs. On that reason, majority of workflow scheduling has concentrated on modeling of various resources which should be handled and the interest for workflow scheduling under constraints related to resources is rather unsatisfactory In this paper we presents the Transformation Template based on Concurrent Transaction Logic(CTR) which is suitable for scheduling workflows with resource allocation constraints, and the logical framework. The Transformation Template consists of a Workflow Transformation Template and a Constraint Transaction Template. Especially the Transformation Template can be conveniently used to logically represent new workflows under the existing resource allocation constraints.

• Journal of Digital Convergence
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• v.10 no.11
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• pp.145-164
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• 2012

With the development of Information Communication Technology (ICT), diverse work policies, such as, telework, telecommuting, flexible work had been conceptualized and implemented to encourage efficient business practices and worker satisfaction. These work policies are the forerunners of newly emerging concept of "Smart Work." However, as smart work is a new concept, no single agreeable definition can be found. In this study, the relevant literatures published in past 15 years are reviewed systematically in order to derive a conceptual framework for "Smart Work," from related research, such as telecommuting, flexible time, telework, etc. Related variables are grouped into five clusters: Task, Technology, People, Organization Structure and Managerial Levers, forming a policy and research framework. Further research are suggested after the discussion of implications.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.479-482
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• 2011

This paper proposes a design of a ship backbone network-based on the survival and efficiency of the ship network. Currently IEC operates the standard ship network, a standard specification "IEC 61162-410 maintains the operation of the network. IEC 61162-410 offers a high stability of the ship network by using terminal equipment. But current studies are incomplete because it has been assumed that the ship's network will operate at double its current capacity. This paper analyzes the double ship backbone topology for an organization and then will summarise the minimum costs required to implement the ship backbone topology using an ILP. Also, we present an effective traffic assignment technique that uses an ILP, metaheuristic, heuristic algorism-based underlying the ship backbone network. The results by experimenting the design of the network confirmed a greter efficiency, stability and cost-effectiveness of the ship network.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06d
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• pp.255-258
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• 2008

현재 이동통신 네트워크는 통신 기술의 발전에 힘입어 음성 서비스를 넘어선 다양한 패킷 데이터 기반 서비스를 제공하고 있다. 하지만 현재 IEEE 802.11과 같은 이기종 네트워크에 대한 연구가 다양하게 진행되고 있는 것과 달리 이동통신 네트워크의 패킷 데이터 기반 서비스에 대한 연구는 이루어지지 않았다. 이러한 추세의 원인은 이동통신 네트워크가 사업자에 의해서 폐쇄적으로 운영되고 있기 때문이다. 우리는 지금까지 이기종 네트워크에 대한 연구를 바탕으로 예측만 하던 문제를 해결하기 위해 이 논문은 통해서 이동통신 네트워크의 패킷 기반 데이터 서비스의 특징을 분석한다. 실제 트래픽을 모두 분석하는 것은 규모의 문제로 불가능했기 때문에 우리는 서비스에 대한 과금 데이터를 사용했다. 과금 데이터에는 네트워크의 특징이 대부분 반영되어 있기 때문에 실제 트래픽을 수집해서 분석하는 것과 같다. 분석결 과로 이동통신 환경에서 사용자 행동 패턴과 서비스 유형별 트래픽 특성 및 네트워크의 특징을 보여준다. 이러한 결과는 향후 네트워크 진화에 의해서 예상되는 트래픽 예측 및 관리에 활용 가능하고, 네트 워크 모델링에 있어서의 기반 지식을 제공한다.