Operations and Supply Chain Management Commons^™

Measuring Organizational Usage Of Information Technology, Anand Jeyaraj

ISSCM Faculty Publications

Organizations make considerable investments in information technology to support their internal and external operations. For instance, a recent research report by Gartner Inc. indicates that worldwide spending on information technology will reach United States $3.3 trillion for the year 2008.

The Long Haul: Risks Associated With Livestock Transport, Michael Greger

Agribusiness Collection

The Food and Agriculture Organization (FAO) of the United Nations describes live animal transport as “ideally suited for spreading disease,” given that animals may originate from different herds or flocks and are “confined together for long periods in a poorly ventilated stressful environment.” Given the associated “serious animal and public health problems,” the Federation of Veterinarians of Europe has called for the replacement of the long-distance transportation of live animals for slaughter as much as possible to a “carcass-only trade.”

In the United States, more than 50 million live cattle, sheep, and pigs and an unknown number of the more …

Innovation In Logistics Services, Carlos Mena, Martin Christopher, Mark Johnson, Fu Jia

Business Faculty Publications and Presentations

The logistics industry manages the flows of products, services and information across customers and suppliers, allowing the integration of supply chains. Innovations in logistics can therefore help improve efficiency and effectiveness across many sectors of the economy. Furthermore, innovation can also have a major impact in reducing the environmental burden of this industry, particularly in terms of pollution and greenhouse gas emissions.

This overall aim of this report is to understand how the government can encourage and facilitate innovation in the logistics industry. The study focuses mainly on the UK and on the role of third party logistics providers (3PLs). …

Antecedents Of Supply Chain Visibility In Retail Supply Chains: A Resource-Based Theory Perspective, Mark Barratt, Adegoke Oke

Management Faculty Research and Publications

Although visibility has become a popular buzzword in the supply chain literature it remains an ill-defined and poorly understood concept. It is assumed that if companies across supply chains have visibility of demand, inventory levels, processes, etc., that organizational performance improves. This research explores the antecedents of high levels of supply chain visibility from a resource-based theory perspective across five different external supply chain linkages. We find that the level of visibility across these linkages differs considerably based on various contributing factors which are both technology and non-technology based. Using resource-based theory, we identify those factors that can give a …

Research And Development Project Valuation And Licensing Negotiations At Phytopharm Plc, Pascale Crama, Bert De Reyck, Zeger Degraeve, Wang Chong

Research Collection Lee Kong Chian School Of Business

We describe a research and development project-valuation model developed for Phytopharm plc, a pharmaceutical development and functional food company based in Cambridgeshire, United Kingdom. Phytopharm uses the model to value the projects in its research and development portfolio, and in licensing negotiations with potential product development and marketing partners. We include different valuation methods, including net present value, decision analysis, and Monte Carlo simulation. We also consider the technological risks of product development, as well as the uncertainty of commercial success. In addition to determining a value for a product in development, the model proposes appropriate licensing contract structures. A …

Product Complexity: A Definition And Impacts On Operations, Mark A. Jacobs

MIS/OM/DS Faculty Publications

The difficulty for organizations arises because neither complexity nor its impacts on performance are well understood (Fisher & Ittner, 1999b). The mechanisms through which it affects cost, quality, delivery, and flexibility need to be explained (Ramdas, 2003). However, this cannot happen until complexity can be explained theoretically. But, to build theory there must first be a common understanding about the construct of interest (Wacker, 2004). Only then can researchers operationalize it and search for meaningful relationships. In light of this, I develop a definition of complexity below. A sampling of the operations management literature is then presented within the context …

Is The World Flat Or Spiky? Information Intensity, Skills, And Global Service Disaggregation, Sunil Mithas, Jonathan W. Whitaker

Management Faculty Publications

Which service occupations are the most susceptible to global disaggregation? What are the factors and mechanisms that make service occupations amenable to global disaggregation? This research addresses these questions by building on previous work by Apte and Mason (1995) and Rai, Patnayakuni, and Seth (2006) that focuses on the unbundling of information and physical flows. We propose a theory of service disaggregation and argue that high information intensity makes an occupation more amenable for disaggregation because the activities in such occupations can be codified, standardized, and modularized. We empirically validate our theoretical model using data on more than 300 service …

A Field Study Of Rfid Deployment And Return Expectations, Jonathan W. Whitaker, Sunil Mithas, M. S. Krishnan

Management Faculty Publications

Radio Frequency Identification (RFID) technology promises to transform supply chain management. Building on previous research in information systems and supply chain management, this paper proposes a theoretical framework for RFID adoption and benefits, and tests the framework using data on U.S. firms. Our analysis suggests that there is a positive association between information technology (IT) application deployment and RFID adoption. We find that RFID implementation spending and partner mandate are associated with an expectation of early return on RFID investment, and a perceived lack of industry-wide standards is associated with an expectation of delayed return on RFID investment. These results …

The Greater Dayton It Alliance Strategic Plan, Donald H. Hopkins Jr.

ISSCM Faculty Publications

The Greater Dayton IT Alliance 2008-11 Strategic Plan is the product of tactical collaboration by the Board of Trustees and members. This team developed the key elements of the plan which were then individually examined to create required actions, programs and metrics.

Customer Relationship Management: A Theoretical Overview And The High Cost Of Failure (A Case Study), Tamilla Curtis, Donald Barrere, Tom Griffin

Publications

Despite the significant benefits offered by the customer relationship management (CRM) strategy together with advanced technology, there is still a high rate of companies who fail to see results promised by CRM in order to achieve a competitive advantage. A review of the empirical literature together with the case study of the CRM implementation within a midsize financial firm will result in deeper understanding of current CRM practices that could contribute to better planning, selection, and implementation of customer relationship management programs.

Acute Stress Induced By The Preslaughter Use Of Electric Prodders Causes Tougher Beef Meat, R. D. Warner, D. M. Ferguson, J. J. Cottrell, B. W. Knee

Slaughter and Slaughtering Practices Collection

Adrenergic activation and hormone release preslaughter is an inevitable outcome of the systems used to move cattle to slaughter. The aim of this experiment was to investigate the effects of acute preslaughter stress in beef cattle on postmortem muscle metabolism and the meat quality, including consumer-assessed eating quality. Eighty-four cattle were used on three separate days, with ‘mobs’ of four cattle allocated to either a ‘control’ (no electric goads used preslaughter) or a ‘stress’ (six prods given with an electric goad over 5–10 min) treatment at 15 min preslaughter. Cattle undergoing the ‘stress’ treatment had higher plasma lactate at slaughter. …

Influence Of Free-Stall Base On Tarsal Joint Lesions And Hygiene In Dairy Cows, W. K. Fulwider, T. Grandin, D. J. Garrick, T. E. Engle, W. D. Lamm, N. L. Dalsted, B. E. Rollin

Housing and Confinement of Farm Animals Collection

The objective was to quantify the incidence of tarsal lesions and level of hygiene by stall bed type. Cows were scored on 100 dairies from Wisconsin, Minnesota, Indiana, Iowa, and New York in the fall and winter. Thirty-eight dairies used rubber-filled mattresses (RFM), 27 had sand beds, 29 had waterbeds, and 6 used compost packs (CPk). Stocking density, stall dimensions, bedding amount, bedding frequency, and type of bedding were recorded. One pen of early-lactation multiparous cows on each dairy was scored based on injury of the tarsal joints at the lateral and medial surfaces and tuber calcis at the dorsal, …

Chaos And Convergence On Bucket Brigade Assembly Lines, John J. Bartholdi, Iii, Donald D. Eisenstein, Yun Fong Lim

Research Collection Lee Kong Chian School Of Business

One way to coordinate the efforts of workers along an assembly line that has fewer workers than work stations is to form a bucket brigade. Each worker in a bucket brigade simultaneously assembles a single item (an instance of the product) along the line. The worker carries the item from work station to work station until either he hands of his item to a downstream co-worker or he completes the work for his item. The worker then walks back to get another item, either from his co-worker upstream or from a buffer at the beginning of the line. The most …

Global Sourcing And Logistics, Martin Christopher, Fu Jia, Omera Khan, Carlos Mena, Erik Sandberg

Business Faculty Publications and Presentations

The sourcing of products from across the global marketplace is an increasing trend associated with economic development. This trend is the result of many independent decisions taken by firms around the world looking for new sources of competitive advantage. However, these decisions can also have unintended consequences, exposing the firms to hidden costs and risks, creating congestion at different points in the global transport infrastructure and increasing emissions of pollutants and greenhouse gases.

This report presents the results of a project conducted in 2006-07, aimed at improving global sourcing practices, with a particular emphasis on the implications for the UK. …

Machine Scheduling Performance With Maintenance And Failure, Yunsong Guo, Andrew Lim, Brian Rodrigues, Shuang Yu

Research Collection Lee Kong Chian School Of Business

In manufacturing control, machine scheduling research has mostly dealt with problems either without maintenance or with deterministic maintenance when no failure can occur. This can be unrealistic in practical settings. In this work, an experimental model is developed to evaluate the effect of corrective and preventive maintenance schemes on scheduling performance in the presence of machine failure where the scheduling objective is to minimize schedule duration. We show that neither scheme is clearly superior, but that the applicability of each depends on several system parameters as well as the scheduling environment itself. Further, we show that parameter values can be …

Carcass Composition And Meat Quality Of Three Different Iberian × Duroc Genotype Pigs, Rosario Ramírez, Ramon Cava

Slaughter and Slaughtering Practices Collection

Carcass composition and meat quality of Longissimus dorsi (LD) and Biceps femoris (BF) muscles from three different Iberian × Duroc genotype pigs were studied: GEN1: ♂ Iberian × ♀ Duroc1; GEN2: ♂ Duroc1 × ♀ Iberian; GEN3: ♂ Duroc2 × ♀ Iberian. Duroc1 (DU1) were selected for the manufacture of dry-cured meat products while Duroc2 (DU2) were pigs selected for meat production, with high percentages of meat cuts and low carcass fat. Genotype had a significant effect on the differences found while sex had not. GEN2 showed the highest weights at days 180 and 238 of weaning and the highest …

A Comparison Of Cross Training Policies In Different Job Shops, Kum Khiong Yang

Research Collection Lee Kong Chian School Of Business

This research compares a set of cross-training policies represented by different numbers of cross-trained workers, additional skills per cross-trained worker, and additional machines. The policies are evaluated in job shops, represented by different efficiency losses, labour utilization, variability in processing times, and worker absenteeism. Our results show that adding one machine in each department and cross-training one or two workers from each department with one additional skill is generally sufficient to realize most of the benefits of cross-training. Cross-training is thus beneficial in most job shops, unless the cost of the minimal training and spare machines is high. Our results …

Outsourcing Via Service Competition, Ehsan Elahi, Saif Benjaafar, Karen Donohue

Management Science and Information Systems Faculty Publication Series

We consider a single buyer who wishes to outsource a fixed demand for a manufactured good or service at a fixed price to a set of potential suppliers. We examine the value of competition as a mechanism for the buyer to elicit service quality from the suppliers. We compare two approaches the buyer could use to orchestrate this competition: (1) a Supplier-Allocation (SA) approach, which allocates a proportion of demand to each supplier with the proportion allocated to a supplier increasing in the quality of service the supplier promises to offer, and (2) a Supplier-Selection (SS) approach, which allocates all …

Connecting You With Real People At Real Time, Shu Z. Schiller

ISSCM Faculty Publications

As we all know, traditional customer services are mainly based on face-to-face in-store help, mailing catalogs, and telephone contacts such as call centers. The Internet has introduced new ways of delivering customer services on time and on target to address customers’ needs. Live Chat Online Customer Service uses live text chats, an innovative tool, and advanced features, such as shared co-browsing windows, to deliver real-time help and on-demand assistance to online customers. Although happening over the Internet, customers are interacting with real people synchronously.

Logistics Network Design With Supplier Consolidation Hubs And Multiple Shipment Options, Michelle L. F. Cheong, Rohit Bhatnagar, Stephen C. Graves

Research Collection School Of Computing and Information Systems

An important service provided by third-party logistics (3PL) firms is to manage the inbound logistics of raw materials and components from multiple suppliers to several manufacturing plants. A key challenge for these 3PL firms is to determine how to coordinate and consolidate the transportation flow, so as to get the best overall logistics performance. One tactic is to establish consolidation hubs that collect shipments from several suppliers, consolidate these shipments, and direct the consolidated shipments to the appropriate manufacturing plant. We consider the network design problem to implement this tactic, namely deciding the number, location and operation of consolidation hubs …

Virtual Transfer Pricing Mechanisms In Global Supply Chain, Kun Liao, Jie Jennifer Zhong

All Faculty Scholarship for the College of Business

Increasingly global firms establish plants across their national borders while utilizing their home country suppliers in diverse locations. In view of complex risk factors including political uncertainty, tax rate differences, exchange risks and labor condition changes, the issues of optimizing profits through their global operations have received much attention from both academic researchers and executives. Yet, little attention has been paid in regard to virtual transfer pricing in the global supply chain. In this paper, a virtual transfer pricing model is proposed by using contract bundle within a global supply chain to lower the risks and maximize the profit potentials.

The Sox-Rfid Connection, Porcher L. Taylor Iii, Nezih Altay

School of Professional and Continuing Studies Faculty Publications

Companies expect to gain many benefits from implementing Radio Frequency Identification (RFID) technology. Perhaps the one cited most often is lower supply chain costs, which result from the improved inventory visibility that the technology affords. But there's another often overlooked advantage that supply chain managers should know about: RFlD technology can help them fulfill the requirements of the Sarbanes-Oxley Act (SOX) if implemented and integrated properly. Conversely, RFID can complicate the already complex and costly internal mandates of SOX if the implementation is not approached the right way.

E-Grocer Strategies: A Case Study, Anand Jeyaraj, Dubravka Cecez-Kecmanovic, Ville-Pekka Mäkeläine

ISSCM Faculty Publications

The recent bankruptcy of the eGrocer Webvan demonstrates that online retailers face enormous risks and hence need well thought out business strategies (Porter, 2001). This paper presents a longitudinal study of the business strategies of two eGrocers that use physical stores to house their Internet-based grocery operations (clicks-and-bricks) and two online only (pure-play) eGrocers. Our study results in a number of recommendations for successful eGrocer strategy configuration. Even though we focus on eGrocer’s strategies, we suggest that the lessons learned are of interest to other retailers planning to embark on eCommerce activities.

Effect Of Stall Base Type On Herd Health, Costs, And Producer Satisfaction, W. K. Fulwider, T. Grandin, D. J. Garrick, T. E. Engle, W. D. Lamm, N. L. Dalsted, B. E. Rollin

Housing and Confinement of Farm Animals Collection

The objective of this field study was to compare effect of stall base on herd health, stall maintenance, bedding cost, and producer satisfaction. Ninety-one dairies visited during a 4-mo period starting October 14, 2005 included 33 rubber-filled mattress (RFM), 27 sand, and 31 waterbed (WB) dairies. In this study, percent culled was higher for RFM (P = 0.001) and sand (P = 0.06) than WB stall base dairies. Percent of cows in fourth lactation or greater was higher on WB than either RFM (P = 0.01) or sand (P = 0.02) dairies. There was no difference between base types for …

Real-Time Supply Chain Control Via Multi-Agent Adjustable Autonomy, Hoong Chuin Lau, Lucas Agussurja, Ramesh Thangarajoo

Research Collection School Of Computing and Information Systems

Real-time supply chain management in a rapidly changing environment requires reactive and dynamic collaboration among participating entities. In this work, we model supply chain as a multi-agent system where agents are subject to an adjustable autonomy. The autonomy of an agent refers to its capability to make and influence decisions within a multi-agent system. Adjustable autonomy means changing the autonomy of the agents during runtime as a response to changes in the environment. In the context of a supply chain, different entities will have different autonomy levels and objective functions as the environment changes, and the goal is to design …