• Journal of Digital Convergence
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• v.16 no.3
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• pp.291-301
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• 2018

Supply chain in service sector has been established on the premise that firms need to manage their process uncertainties to satisfy customers in an efficient manner. Information sharing and synchronization play key roles in minimize uncertainties from their involved supply chain. The duality of customers being inputs providers as well as consumers, differentiates service supply chains from manufacturing and is a challenging issue to traditional supply chain management. The service supply chain is a structured network which should be managed with supply chain theory and principles. Various key operations need to be carried out through a highly integrated and collaborated service supply chain and supporting information hub. The purpose of this paper is to present the issues and key components in the service supply chain, where the repetitive service is provided along the value chain, such as tourism, restaurant, mega-sized hospital supply chain.

• Journal of Digital Convergence
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• v.10 no.9
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• pp.213-224
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• 2012

Supply chain management for complex project focuses on planning acquisitions, identifying and choosing the right suppliers and subcontractors, planning and negotiating appropriate contracts, and administering and closing contracts. Working with suppliers and subcontractors requires continuous integration activities during project execution. This article examines the concept and issues concerning supply chain management in plant engineering Project, of which has not been taken seriously by industry. We propose the technological infra, social infra and information system connecting all participants in supply chain, as the major fields of research requiring industry attentions, and give a brief summary of research in each proposed areas.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.5
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• pp.1-6
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• 2009

MANET(Mobile Ad-hoc NETwork), a network characterized that its moving nodes freely constructs Network topology, has other different characteristics. Because Policy based Network Management in MANET guarantees QoS between nodes, it is essential in applied areas like VANET which targets safety and convenience. In this paper, we use COPS-PR which is appropriate Policy Exchange Protocol for MANET, and implement DiffServ-based QoS in the real networks and experiment its capability.

• Journal of Digital Convergence
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• v.20 no.2
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• pp.9-20
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• 2022

Supply chain attacks target critical infrastructure, causing large amounts of damage and evolving into a threat to public safety and national security. Accordingly, when establishing cybersecurity strategies and policies, supply chain risk management is specified to enhance security, and the US Biden administration recently issued the Executive Order on Improving the Nation's Cybersecurity, SBOM was mentioned as part of the guidelines for strengthening software supply chain security. If the government mandates SBOM and uses it as a security verification tool for supply chains, it can be affected by the domestic procurement system in the future and can be referenced when establishing a security system for domestic supply chains according to the progress of policy implementation. Accordingly, in this paper, countries that are promoting the SBOM policy as a way to strengthen the security of the software supply chain were selected and analyzed with a focus on related cases. In addition, through comparison and analysis of foreign SBOM policy trends, methods for using domestic SBOM in terms of technology, policy, and law were considered. As the value of using SBOM as a supply chain integrity/transparency verification tool is expected in the future, it is necessary to continuously identify trends in the establishment of international standardization and policy development for SBOM and study the standard format.

• Journal of KIISE:Computing Practices and Letters
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• v.7 no.1
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• pp.87-98
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• 2001

ATM-LAN 스위칭 망에서 논리적인 브로드캐스트 도메인 서비스를 제공하는 가상랜을 정의하는 방법으로 LANE(LAN Emulation)을 사용할 수 있다. 이 때 LE 구성서버는 각 클라이언트에게 가상랜을 할당하고 관리한다. 본 논문에서는 서버 내에 정의된 정책과 구성 데이타베이스를 기반으로 하여 가상랜을 결정하는 기능을 설계하고 구현하였다. 또한 운영자가 쉽게 가상랜의 추가, 변경, 삭제 등의 기능을 수행할 수 있는 관리 모듈도 구현하였다. 이로서, LANE에서의 ELAN(Emulated LAN)을 가상랜으로 간주할 때 부족했던 동적인 가상랜을 지원할 수 있게 하였고, 운영자로 하여금 효율적오르 가상랜을 구성하고 관리할 수 있게 하였다.

• Electronics and Telecommunications Trends
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• v.31 no.5
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• pp.99-109
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• 2016

IETF Path Computation Element(PCE) 그룹에서는 데이터 전송을 위한 전달 경로를 찾는 엔진 기능을 중심으로 표준화를 진행하고 있다. 망의 상태, 위상, 자원 가용성, 정책을 기반으로 최적의 자원을 할당하는 경로 계산 기능과 구조, 프로토콜 등을 정의하는데 MPLS/GMPLS 망의 제어 평면 프로토콜 기반 전송을 위주로 출발하여 광, 회선 망에서의 적용과 서비스 표준이 실제 사례를 뒷받침하여 발전되었고 현재는 데이터 센터 네트워크, SDN, IoT 분야에서의 활용이 활발하게 논의되고 있다. 본고에서는 경로 계산 기능의 분산을 주요 목적으로 하여 이제는 범용의 전달망 관리 분야로 확대 적용되는 추세의 active stateful PCE와 Traffic Engineering Database (TED), Label Switched Path DB(LSP-DB), PCE Protocol(PCEP) 등을 포함한 관련 표준 현황을 살펴보고 향후 통합 전달망 제어 관리 진화 방향을 소개하고자 한다.

• Korea Information Processing Society Review
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• v.4 no.2
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• pp.44-51
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• 1997

• Satellite Communications and Space Industry
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• v.15 no.1
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• pp.18-27
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• 2008

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.1B
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• pp.87-93
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• 2003

As Information Security Technology has become rather transparent, wide, and integrated than in part, exclusive, and separated, A necessity of the study about integrating the separated distributed security systems into one module, has grown However, there is no integrated framework which can manage all separate security systems as one integrated one yet. Accordingly, we propose a new policy based network admirustrative model in this paper which can integrate individual security systems and distributed control way into one effectively.

• Journal of Digital Convergence
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• v.17 no.5
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• pp.145-155
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• 2019

The Healthcare supply chain management has recently attracted attention as a critical tool to improve service quality and reduce healthcare operational cost. Improving large hospital supply chain performance has become increasingly important as healthcare organizations strive to improve the service quality, while reducing the ever-increasing healthcare cost. This paper explores the strategic areas where the traditional supply chain management may enhance the overall performance of the large hospitals. Based on the literature review and relevant case analysis, this paper argues that the visibility, information sharing and standardization are the critical factors for deploying the supply chain principles, and also proposes the supply chain framework for efficient planning and execution, the use of RFID-enabled system for the end-to-end traceability of medical products, and cross-docking system for minimizing the inventory level in the hospital supply chain. Implications of the study findings are discussed.