Browsing by Author "Lee, W. T."

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A one-stop logistic services framework supporting global supply chain collaboration
(2016-06)
Trappey, Amy J. C.
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Trappey, Charles V.
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Chang, Sandy W. C.
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Lee, W. T.
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Hsu, Tun Nien
A global enterprise must continuously improve the efficiency of logistic operations between supply chain collaborators. Integrating logistic services, resources, and necessary information flows in the supply chain to ensure efficiency and efficacy is critically important to these companies. Global logistic service companies face challenges from their clients to provide logistic services that are cost effective, accurate, and seamlessly integrate material, information and cash flows. In this research, an improved framework for one-stop logistic services is systematically designed, analyzed, and evaluated. The one-stop logistic service framework, defined in four models, is developed to provide enterprises with integrated and comprehensive services within the global supply chain context. The levels of service importance are assessed using a four categories questionnaire. This research provides a case study of the implementation of one-stop logistic services in the distribution industry and demonstrates the framework operating under different demand conditions. Finally, system dynamics causal evaluation is used to evaluate the advantages of the logistic service framework.
Analysis and Design of a Supply Chain Logistics Hub for After Market Automotive Parts Distribution
(2008)
Liu, C. S.
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Trappey, Charles V.
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Trappey, Amy J. C.
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Hung, Anlin Y. L.
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Huang, Ashley Y. L.
Developing global logistics strategies has become essential for ensuring enterprise profitability. As a case in point, the Taiwan automobile manufacturing industry is improving logistics operations and enhancing product traceability using integrated distribution hubs. After-Market Services (AMS) are critical for automobile part suppliers since they are required to satisfy their clients while providing on-time deliveries that are traceable on route. Offering these parts and services requires re-engineering the enterprise and integrating the processes with information systems located across the channel and around the world. This research depicts the current AMS logistics and management processes for an automobile lamp and components manufacturer. The case studies the current logistic process (e.g., shipment tracking, inventory management and order processing) and depicts the underlying business processes using Petri net diagrams. After using simulation to study bottlenecks, repetitive processes, and areas of operation that waste time and money, a to-be model is developed. The goal of the to-be model is to apply information technology to exchange and share information among supply chain participants. In order to benchmark the design of the to-be logistics model, the simulation is run and compared to the current operations. Although the research does not attempt to optimize the model, simulation runs on the to-be model are repeated until an improved solution is achieved that satisfies the manufacturer\'s goals. The results show that an information technology based logistic hub increases logistics efficiency and better enables the manufacturer to increase profits.
Business and logistics hub integration to facilitate global supply chain linkage
(2007-07-01)
Trappey, C. V.
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Trappey, A. J. C.
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Lin, G. Y. P.
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Liu, C. S.
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Lee, W. T.
With the development and integration of the global supply chain, manufacturing industries are rapidly adjusting their modes of operation within and between enterprises. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing, and suppliers are given additional responsibilities to provide parts and services dynamically. An enterprise must strategically re-engineer its operations model to face the rapid changes of the global market place. This paper identifies prevailing challenges and highlights a future vision of the global logistics management framework for the automotive industry. An integrated business and logistics hub (IBLH) model integrating information flows (via the business hub) and material flows (via the logistics hub) is presented. This research uses the case of a Taiwan automobile parts and assembly manufacturer to analyse the processes of the IBLH. The goals of the case are to shorten supply chain processes, reduce inventory costs, and ensure information transparency during material flow and product distribution. Finally, this research provides suggestions to depict the case company's current limitations and deficiencies, and presents a future plan for e-logistics services.
Deriving industrial logistics hub reference models for manufacturing based economies
(2011-02-01)
Trappey, Charles V.
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Lin, Gilbert Y. P.
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Trappey, Amy J. C.
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Liu, C. S.
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Lee, W. T.
Global enterprises require extended logistics operations that integrate channel intermediaries into the network The method for deriving Integrated models for logistics hubs that improve the efficiency of manufacturers global operations is the focus of this paper Under government sponsorship six industrial logistics hubs were implemented by leading manufacturing sectors across Taiwan over a five year period from 2004 until 2008 Each industry sector had unique industry characteristics business strategies and logistics models Therefore this paper describes how generalized and quick to implement integrated logistics hubs are developed by studying the successful reference models and systems used by six independent industrial sectors The research results provide a field tested method for deriving integrated logistics hub models in different manufactunng economies with notes that provide sufficient methodological detail for repeating the construction of logistics hubs in other manufacturing economies (C) 2010 Elsevier Ltd All rights reserved
Global Logistic Management for Overseas Production Using a Bulk Purchase 4PL Model
(2013-01-01)
Trappey, Amy J. C.
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Trappey, Charles V.
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Chang, Ai-Che
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Lee, W. T.
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Cho, Hsueh-Yi
In order to improve the quality of the components supplied by key suppliers and delivered to the final assembly sites overseas efficiently and timely, a new logistics business model and assessment analysis are proposed using services provided by fourth-party logistics (4PL) companies. In the research, a Petri Net process modeling approach is adopted to construct the model and identify the current bottlenecks discovered in the as-is (existing) logistic processes. According to the benefits of the proposed e-logistics information system and its to-be process improvement, total operating time and total operating costs can be reduced 41% and 21% respectively. The global logistics information platform is built to enhance the logistics management efficiency of manufacturers with multi-national operations for improving their global competitiveness.
Omni-Channel Sales and Smart Logistic Service Framework - As-Is and To-Be Paradigms
(2017-01-01)
Trappey, A. J. C.
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Trappey, C. V.
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Wang, J. W-C.
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Lee, W. T.
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管理科學系
E-commerce (EC) has fundamentally changed retail business models. Mobile devices (or m-commerce) and social networks drive retail innovations by better enabling data transfer and communications between EC participants (buyers, sellers, intermediaries). Many suppliers or intermediaries have invested in building virtual channels. Omni-channel sales integrate resources of different channels and provide consistent and satisfactory shopping experiences to potential customers. This research analyzes the retail industry's as-is omni-channel sales across social, legal, economic, policy, and technological (S.L.E.P.T) views. The research presents the to-be model of smart logistic services for omni-channel sales and distribution. The Internet-of-Things (IoT) enabled solutions supporting smart logistic services for omni-channel sales are the focus of the research. Finally, the as-is and to-be logistic process models are benchmarked with respect to their performance indices including operating costs, times, and required human resources.
SETZ logistics models and system framework for manufacturing and exporting large engineering assets
(2013-07-01)
Trappey, Charles V.
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Trappey, Amy J. C.
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Lin, Gilbert Y. P.
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Lee, W. T.
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Yang, Ta-Hui
Given the dynamic and increasingly competitive nature of international commerce, manufacturing companies must plan global logistics operations for sustainable competitive advantage. Many enterprises build collaborative manufacturing networks across multinational regions to reduce production costs and gain access to new and often unfamiliar markets. Recognizing the strategic importance of globalization, government agencies are developing Special Economic Trade Zones (SETZ). These zones are regulated industrial districts which encourage manufacturing by offering incentives such as new logistic designs linked with the latest information technologies. The objective of this paper is to analyze and design SETZ logistics hub models and system framework for linking manufacturers. By defining the characteristics of the different types of specialized trade zones, and briefly discussing the older types of trade models that are no longer competitive, this research uses the case of a Taiwan power transformer manufacturer to analyze the supply chain logistics processes for manufacturing and exporting large engineering assets within a SETZ. The logistics models and information system framework developed provide a general reference for other governments, companies, and industrial sectors that intend to design export-oriented industrial parks incorporating IT-centric and globally oriented SETZ techniques. (C) 2012 Elsevier Inc. All rights reserved.
The Analysis and Development of Taiwan's Industrial Logistics Hubs
(2009)
Trappey, Charles V.
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Trappey, Amy J. C.
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Lin, Gilbert Y. P.
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Liu, C. S.
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Lee, W. T.
With the trend of globalization, enterprises require to extend their logistics scope from domestic to international, integrate logistics networks, and improve the agility and efficiency of global operations. This paper reviews the design and implementation of the industrial logistics hubs which belong to six manufacturing sectors in Taiwan over the past five years. Different industries have their own industry character, business strategy, and logistics models. Therefore, this paper organizes the executive problems and their corresponding solutions during project execution phases. Finally, this paper depicts the companies' executive experience and presents the future outlook for other companies and industry sectors' reference.
The Design and Evaluation of a Supply Chain Logistic Hub for Automobile and Parts Distribution
(2008)
Trappey, Charles V.
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Trappey, Amy J. C.
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Liu, C. S.
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Lee, W. T.
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Hung, Y. L.
Enterprises in Taiwan are facing global competition which requires enterprises to implement sound business models and maintain effective operational processes. The most pressing need is to develop global logistic processes and models that satisfy rapidly changing business and operational objectives. This research studies how the automotive industry in Taiwan has adopted its logistic hubs to improve international business operations and objectives. In the first phase of the study, Taiwan automotive firms were surveyed and their current (as-is) logistic models were derived. In the second phase, based on the industry characteristics and the company's global strategy, the improved (to-be) logistic processes were derived. Further, a case of Taiwan automobile manufacturers is used to apply and demonstrate the to-be logistic models and evaluate the performance of the proposed models. The resulting framework for a global logistic hub is designed to improve the operations of automotive companies with respect to time and cost, as well as to ensure information sharing among automotive supply chain partners.
The Improved Global Supply Chain Material Management Process Framework for One-Stop Logistic Services
(2015-01-01)
Hsu, Abby P. T.
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Chang, Ai-Che
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Trappey, Amy J. C.
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Trappey, Charles V.
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Lee, W. T.
This research focuses on the material procurement process improvement of a manufacturer under one-stop logistic services and proposes a to-be process offering a vendor-managed inventory (VMI) and information integration services provided by one-stop logistic services providers (1SLP) for shortening the procurement and manufacturing lead time, and enhancing the information flow accuracy and transparency. The 1SLP is an integrator that assembles the resources, capabilities, and technologies of supply chain networks to design and implement comprehensive logistic solutions. The research develops the 1SLP process framework by dividing the service scope into four service models. We use a case example to demonstrate the improved process. The case company is a leading manufacturer in producing projectors for the global market. The current material procurement process causes long lead times, delays the manufacturing process, and does not integrate all information in the supply chain. In the to-be model, a 1SLP incorporated model 2 services and provides a VMI warehouse as a value-added service and integrated information platform to ensure the buyer\'s inventory level and implements appropriate logistics optimization for efficient delivery. The AnyLogic Simulation Software is used to model the current and the to-be business processes. The comparison between the as-is and the to-be models demonstrates that the improved material procurement process increases the current process\'s efficiency under the one-stop services without impeding product availability to the target market.
Using System Dynamics Analysis for Performance Evaluation of IoT Enabled One-Stop Logistic Services
(2014)
Hsu, Abby P. T.
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Lee, W. T.
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Trappey, Amy J. C.
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Chang, Ai-Che
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Trappey, Charles V.
This research focuses on a methodology applying Internet of Things (IoT) technology and enabling the material procurement process improvement of a manufacturer. The one-stop logistic service provider (1SLP) is an integrator that assembles the resources, capabilities, and technologies of supply chain networks to design and implement comprehensive logistic service solutions. This research develops the IoT enabled 1SLP process framework and uses a case example to demonstrate the improved process with a system dynamic (SD) assessment. The current material procurement process of the case requires excessive operation times and the related data do not integrate with the supply chain related information. The 1SLP offers to-be (improved) logistics support incorporating IoT to shorten the operational time and enhance the information flow accurately and transparently. For the SD assessment, the results show that the to-be model improves the IoT process efficiency with the IoT when benchmarked with the as-is current processes.
Using System Dynamics Analysis for Performance Evaluation of IoT Enabled One-Stop Logistic Services
(2015-01-01)
Hsu, Abby P. T.
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Lee, W. T.
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Trappey, Amy J. C.
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Chang, Ai-Che
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Trappey, Charles V.
This research focuses on a methodology applying Internet of Things (IoT) technology and enabling the material procurement process improvement of a manufacturer. The one-stop logistic service provider (1SLP) is an integrator that assembles the resources, capabilities, and technologies of supply chain networks to design and implement comprehensive logistic service solutions. This research develops the IoT enabled 1SLP process framework and uses a case example to demonstrate the improved process with a system dynamic (SD) assessment. The current material procurement process of the case requires excessive operation times and the related data do not integrate with the supply chain related information. The 1SLP offers to-be (improved) logistics support incorporating IoT to shorten the operational time and enhance the information flow accurately and transparently. For the SD assessment, the results show that the to-be model improves the IoT process efficiency with the IoT when benchmarked with the as-is current processes.