• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.10a
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• pp.367-370
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• 2004

본 연구에서는 lot-for-lot 정책으로 운영되는 불균등한 bargaining power를 갖는 단일 생산자와 단일 수요가로 구성된 공급망 시스템에서 생산자와 수요가의 생산량(또는 주문량)의 결정을 위한 통합 모델과 이에 따르는 통합효과의 적정 배분방법을 제안하고자 한다. Quantity incentive라는 개념을 고안하여 공급망 시스템에서 우위를 점하고 있는 생산자(또는 수요가)에게 수요가(또는 생산자)가 현재의 운영정책의 변경을 요구하고 이에 상응하는 보상금을 지불하는 형태의 조정방법을 제안하고자 한다. 이러한 과정을 통해 안정적인 공급망 시스템 운영을 위한 통합 효과의 적정 배분 방법을 추가적으로 제시하고자 한다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.10a
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• pp.574-577
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• 2004

본 연구에서는 lot-for-lot 정책으로 운영되는 불균등한 bargaining power를 갖는 단일 생산자와 단일 수요가로 구성된 공급망 시스템에서 생산자와 수요가의 생산량(또는 주문량)의 결정을 위한 통합 모델과 이에 따르는 통합효과의 적정 배분방법을 제안하고자 한다. Quantity incentive라는 개념을 고안하여 공급망 시스템에서 우위를 점하고 있는 생산자(또는 수요가)에게 수요가(또는 생산자)가 현재의 운영정책의 변경을 요구하고 이에 상응하는 보상금을 지불하는 형태의 조정방법을 제안하고자 한다. 이러한 과정을 통해 안정적인 공급망 시스템 운영을 위한 통합 효과의 적정 배분 방법을 추가적으로 제시하고자 한다.

• 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.

• 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.18 no.6
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• pp.109-120
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• 2020

The supply chain without digitization is just a series of discrete, siloed steps taken through marketing, product development, manufacturing, and logistics, and finally into the hands of the customer. Digitization brings down those walls, and the chain becomes a completely integrated network fully transparent to all the parties involved. The ulitimate goals of digitizatized supply chain management are velocity and visibility. This network will depend on a number of key technologies including integrated planning and execution systems, supply chain analytics, autonomous logistics, smart warehousing and factory, etc, enabling companies to react to disruptions in the supply chain, and even anticipate them, by fully modeling the network, creating "what-if" scenarios, and adjusting the supply chain in real time as conditions change. This paper presents a number of studies on digitalization of supply chains and provides a discussion on issues raised in the process of technology adoption. Implications of the study findings are also provided.

• Proceedings of the Korea Society for Simulation Conference
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• 2000.04a
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• pp.67-72
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• 2000

공급망 관리(SCM: Supply Chain Management)는 공급자, 생산자, 고객에 이르는 공급망(Supply Chain) 전체에 대한 합리화된 통합적 관리를 의미한다. 현재까지 최적화와 관련된 분야들에 대한 연구가 많이 진행되어 왔으나 이러한 최적화 값들의 실제 적용에 관한 연구는 미흡하였다. 이에 본 연구에서는 공급망을 모델링하여 원하는 기간 동안의 시뮬레이션을 통해 공급망을 정량화된 데이터로 표현해 주고, 각 구성 요소에서의 운영정책 변화나 공급망 디자인의 변화와 같은 여러 가지 발생 가능한 변인들이 공급망에 어떠한 영향을 미치는지를 나타내 줄 수 있는 Supply Chain Simulator(SCS)에 대한 개략적인 내용을 살펴보고 개발된 SCS들에 대하여 간략하게 알아보고자 한다.

• Journal of Digital Convergence
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• v.19 no.2
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• pp.93-103
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• 2021

S&OP(Sales and Operations Planning) is an ongoing process of periodic planning, reviewing, and evaluation through the involvement of all key stakeholders. Within this process, performance is regularly reviewed and early warning signals are generated, so that the company can react quickly to changing market and operational environment. This paper presents a framework for effective S&OP for fair alignment, accountability, teamwork, visibility, and risk management. This framework focuses on supply chain information governance, level of information sharing through S&OP, role of S&OP as coordination mechanism, APS effectivesness as a planning tool and SCM performance. In addition, a brief case study on the operating characteristics of S&OP at three Korean firms is presented. Implications of the study finding are also provided. It will also make companies that are considering the introduction of S&OP aware of the importance of S&OP, which will provide practical guidelines for the introduction of S&OP.

• The Journal of Society for e-Business Studies
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• v.19 no.1
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• pp.43-61
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• 2014

This research is an application of game theory to developing the supplier selection and demand allocation mechanism, which are the essential and major research areas of supply chain planning and operation. In this research, the most popular and widely accepted mechanism, the progressive reverse auction is analyzed and compared with the other game theoretic approach, Kalai-Smorodinsky Bargaining Solution in the viewpoint of holistic efficiency of supply chain operation. To logically and exquisitely compare the efficiencies, a heuristic algorithm based on Genetic Algorithm is devised to find the other optimal demand allocation plan. A well known metric, profit-cost ratio, as well as profit functions for both suppliers and buyer has been designed for evaluating the overall profitability of supply chain. The experimental results with synthesis data and supply chain model which were made to mimic practical supply chain are illustrated and analyzed to show how the proposed approach can enhance the profitability of supply chain planning. Based on the result, it can be said that the proposed mechanism using bargainging solution mayguarantee the better profitability for the whole supply chin including both suppliers and buyer, even though quite small portion of buyer's profitability should be sacrified.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2002.05a
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• pp.239-246
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• 2002

기업간 거래에서 다수의 공급자-수요자간 거래대상자의 선택을 인터넷(Internet)상의 e-Marketplace 시스템을 통해 효율화할 수 있을 것이다. 구매기업 중심의 공급자 선택이나 구매/조달에는 e-Procurement 시스템이 적절할 수 있다. 또한, 거래대상자의 선택이나 계약과정 이후, 다수의 공급자-수요자간 여러 협력관계 속에서 거래 물량의 효율적인 공급과 운송을 위한 시스템 기능 역시 필요한 것이다. 지능형 에이전트를 비롯한 지능형 시스템은 인터넷 거래상에서 공급자-수요자간 경쟁이나 선택 또는 거래절차의 처리에 대해 활용방안이 제안되고 범위를 넓혀 가고 있다. 이러한 맥락에서 본고에서는, 공급자-수요자간 경쟁이나 선택과정의 다음 단계에 필요한, 다수의 공급자-수요자간 실제 거래 물량의 공급을 위한 최적 공급망운영(supply chain operation) 시스템을 지능형 에이젼트 체계를 활용하여 구성하였다.

• Journal of Intelligence and Information Systems
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• v.9 no.1
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• pp.109-123
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• 2003

The relationship between suppliers and customers is treated importantly not only in the traditional business-to-business (BtoB) commerce but also in today's Internet environments. On the one hand, most of Internet-based BtoB commerce services like customer-centric e-procurement, supplier-centric e-sales or intermediary-centric e-marketplace focus mainly on the selection of partners according to bidding, auction, etc. This point may result in the problem of overlooking the relationships between suppliers and customers. To overcome this problem in this paper, an intelligent agents-based supply chain operation architecture is proposed and appraised considering the relationship and its adaptation.